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Technical Program

Tuesday, August 11, 2015

8:30 AM to 8:55 AM

Conductive Elastomers by a New Latex Process

Conductive Elastomers by a New Latex Process

Electrically conductive polymers such as polyaniline can be used to in production of light-emitting diodes, printed circuit board components, antistatic materials, etc. Highly filled elastomers, such as those filled with metallic powders, can also conduct electricity. However, limitations due to cost, instability, and poor processability have precluded broad market use for conductive organic polymers in many applications. Here, we describe in situ polymerization of aniline in a latex rubber matrix. This novel approach can be used to produce elastomeric conductive materials as blends of polyaniline (and its derivatives such as poly(ortho-ester aniline) (POEA) and poly(ortho-methoxyaniline) (POMA)) with natural rubber. These materials exhibit excellent polyaniline dispersion, high electrical conductivity, good cohesive strength, and flexibility. The in situ polymerization creates a material with a co-continuous two-phase morphology for optimal and tunable electrical and mechanical properties. The use of natural rubber offers a major biobased component in a low energy, low VOC process. When formulated from guayule natural rubber latex, conductive materials free of Type I latex allergens can be developed for medical applications and wearable electronics.

Author:Colleen McMahan, Ph.D.,

Colleen McMahan, Ph.D.

Research Chemist and Lead Scientist

USDA's Agricultural Research Service

Dr. Colleen McMahan is a Research Chemist and the Lead Scientist of the USDA's Agricultural Research Service project on "Natural Rubber Producing Industrial Crops" in Albany, California. She completed her undergraduate Chemistry and M. S. Polymer Science degrees at The University of Akron, Ohio, and her Doctorat in Physical Chemistry at l'Université de Haute-Alsace in Mulhouse, France, under Prof. Jean-Baptiste Donnet. At the Goodyear Tire & Rubber Company, she worked in rubber compound science and later management of Physical Test Laboratories in support of tire compound development. At Advanced Elastomer Systems, L.P., an ExxonMobil company, Colleen led global product development of thermoplastic elastomers. Since joining ARS her research interests include bio-based rubber and industrial oils, and the new and established crop plants that produce them.

USDA's Agricultural Research Service

8:55 AM to 9:20 AM

Environmentally Friendly High Performance Pressure Sensitive Adhesives--Product Tailoring of Advanced Acrylic Dispersions

Environmentally Friendly High Performance Pressure Sensitive Adhesives--Product Tailoring of Advanced Acrylic Dispersions

Over the recent years Synthomer has been building an unique portfolio of Pressure Sensitive Adhesive (PSA) dispersions, targeting at more sustainable environmental friendly waterborne adhesives.

By tailoring the product features - such as product application (eg. coating & drying), product end use (eg. adhesion, cohesion, shear) and environmental key aspects, smarter products are developed for easy application and longer lasting with less emissions.

These state of the art waterborne PSA dispersions are free of solvent, APEO and formaldehyde. They are based on biodegradable emulsifiers and processed to extremely low residual VOC and fogging levels, while energy conservation is addressed by high total solid content.

The presentation will outline the PSA development process on 2 connected examples dealing with tailored PSA dispersions for moisture proof construction tapes (A) and with PSA dispersions for extremely low VOC and low Fogging automotive tapes (B). Besides providing an introduction to the PSA technology and the PSA chemical tool kit, the presentation will show the step wise product optimization using meaningful application tests.

Author:Soeren Butz, Ph.D.,

Soeren Butz, Ph.D.

Senior Business Development Manager, SBU Functional Solutions

Synthomer

Dr Sören Butz obtained his PhD in macromolecular science in 1999 from the Technical University Clausthal, Germany. He joined the former PolymerLatex (in 2011 merged with Synthomer) and started his career as R&D Manager. Further stations led him to global management roles within Technical Service, Application Technology and Sales & Marketing providing a broad market and technology know how base.

During his carrier he covered the positions as Global Head of Application Technology and Global Head Technical Service for the business segments dipping, adhesives, construction (from 2004) He held the responsibility of Global Industry Team Head for Dipping business (from 2005) and from 2012 he was the Head of Application Technology and Marketing for the segments adhesives, textile- & fiber bonding. From 2009 to 2012 he stayed in Malaysia as Director of Marketing, Sales and Application Technology and was member of the startup team for the world's largest NBR plant.

In 2015 he became Senior Business Development Manager.

Dr. Sören Butz is the author of several publications and conference papers on various aspects of polymer synthesis, synthetic latex and their applications.

Synthomer

9:20 AM to 9:45 AM

Development of Synthetic Lattices - One Size Does Not Fit All

Development of Synthetic Lattices - One Size Does Not Fit All

Emerald Performance Materials has long heritage in the development of synthetic rubber lattices dating back to our predecessor organization, B.F. Goodrich. In this talk, we will present select case studies on the development of new nitrile lattices to enhance end-use performance. Emerald produces a variety of specialty lattices that include, but are not limited to, products containing Butadiene, Acrylonitrile and Styrene monomers, under the Nychem™ brand name. These lattices deliver low temperature flexibility, high strength, excellent wear resistance and superior hydrocarbon resistance. Nychem™ products have established performance standards in specialty applications, including abrasives, adhesives, coated fabrics, impact modified plastics, paper, specialty coatings, and tape.

Author:Jeffrey A. Mathys, Ph.D.,

Jeffrey A. Mathys, Ph.D.

R & D Manager

Emerald Specialty Polymers, LLC

Jeff Mathys is R&D Manager at Emerald Specialty Polymers, LLC. He completed his education in Chemistry at the University of Akron (B.S. 1990) and the University of Virginia (Ph.D. 1995). After three years of post-doctoral work, he spent nearly a decade at Sigma Aldrich Fine Chemicals in Cleveland, Ohio, in product development and process scale-up. In 2007, he joined the R&D group at Emerald Polymer Additives and Specialty Nitriles with divisional R&D responsibilities, assuming the role of R&D Manager in 2011. Jeff's main area of focus encompasses internal process control and external project development. His team works directly with customers to develop and commercialize specialty latex products for existing and new business opportunities.

Emerald Specialty Polymers, LLC

10:15 AM to 10:40 AM

Synthetic Latex Feedstock Trends: Will Oil Price Turmoil Rock the Boat or is it Full Speed Ahead?

Synthetic Latex Feedstock Trends: Will Oil Price Turmoil Rock the Boat or is it Full Speed Ahead?

Global markets of all kinds have been heavily influenced by the rapid fall in crude oil prices that began in mid-2014. Petrochemical Market Participants can be forgiven if they harbor questions about the duration and magnitude of the impact on their business given that it is potentially a complete reversal of the underlying trends seen since 2007. In this paper we consider the duration of the current dynamic and its forecast impact on the primary synthetic latex feedstocks.

Author:William Hyde,

William Hyde

Senior Director, Olefins and Elastomers

IHS Chemical

Bill began his career with Union Carbide Corporation in 1990 where he had various positions including engineering, optimization, planning, and logistics. In 2000, he joined Texas Petrochemicals as a Business Analyst. Bill joined CMAI in the Olefins Consulting Practice in 2002. He assumed responsibility for CMAI's Global C4 Olefins and Elastomer Practice in 2006. In 2011, IHS acquired CMAI and he was promoted to Senior Director Olefins and Elastomers in IHS Chemicals. He has published a number of papers on the Olefins and Elastomers industries as well as presented at Olefins and Elastomers Conferences around the world.

Bill has B.S. and M.S. Degrees in Chemical Engineering from Brigham Young University and an M.B.A. from Tulane University.

IHS Chemical

10:40 AM to 11:05 AM

Customized Solutions from Emerald's Specialty Latex Pilot Plant

Customized Solutions from Emerald's Specialty Latex Pilot Plant

In October 2013, Emerald Specialty Polymers, LLC commissioned a pilot plant to expand R&D capabilities and the range of available Nitrile emulsion technologies into new areas. The pilot plant was engineered to provide significant performance advantages over a full-scale manufacturing process in order to develop customized solutions that tailor next-generation latex products with improved properties. This presentation will detail the advantages of the process, which will allow for future growth and development.

Author:Shawn Keenan,

Shawn Keenan

R & D Engineer

Emerald Specialty Polymers, LLC

Shawn Keenan is the R&D Engineer at Emerald Specialty Polymers, LLC, where he focuses on coordination and product development for the business's latex emulsion line. He graduated from the University of Akron in 2013 with a Bachelor of Science in Chemical Engineering with a Polymer Specialization. Shawn spent three co-operative education assignments with Omnova Solutions. In 2013, he joined Emerald, taking on scheduling, operation, and maintenance of R&D in the latex emulsion pilot plant. He also coordinates the cross-functional efforts between manufacturing and R&D, which develops recipes, assesses safe operations, and optimizes processes for internal and external projects.

Emerald Specialty Polymers, LLC

11:05 AM to 11:30 AM

Advancement of Latex Usage in Asphalt Emulsion Pavement Preservation

Advancement of Latex Usage in Asphalt Emulsion Pavement Preservation

The use of latex in pavement preservation techniques is going to be discussed regarding the applications of Chip Seal, Micro-surfacing, Scrub Seal and Tack Coat. Examples of these applications will be shown as well as the importance of the polymers in the performance in each of those applications.

The polymers used in each of these applications have different performance needs and the testing that is done to show those differences will be discussed. An update will be given on the use of recovery techniques regarding these latex modified asphalt emulsions that are improvements with regards to temperatures of application and use. The rheological testing of those residues will also be discussed as to how they are improved based on the recovery techniques.

With the increase in emphasis of pavement preservation by agencies, the ability to better characterize the performance of the products is very important. The emphasis on providing better specifications for the use of these products is a focus of these changes.

Author:Arlis A. Kadrmas,

Arlis A. Kadrmas

Technical Development Leader - Asphalt

BASF

Arlis is the Technical Development Leader – Asphalt for BASF Corporation since June 2009. Arlis is currently a member of the International Technical Committee for AEMA and also a member of ISSA, NAPA, ASTM, AIChE and the Asphalt Institute. Prior to BASF Corporation, Arlis worked in the asphalt industry for Koch Materials, Sem Materials, and Road Science for 22 years. His experience includes formulating asphalt, modified asphalt, and asphalt emulsion products. He also has worked developing products and specifications for systems utilizing asphalt and asphalt emulsions for a wide range of field applications. He is a Chemical Engineering graduate from the University of North Dakota and resides in Wichita, KS with his wife, Crystal.

BASF

11:30 AM to 11:55 AM

Enhancing the Biodegradation of Waste Rubber

Enhancing the Biodegradation of Waste Rubber

Rubber items are a critical part of modern society and a focus on the waste management of rubber is becoming more critical. Advancements have been made in recycling rubber waste, but a vast majority of rubber products are discarded into landfills and in the environment. Sustainability efforts must include self-remediation through biodegradation of rubber (pre-consumer and post-consumer) in these waste sites. Current advancements provide insight into alternative methods of utilizing bio-mimicry to return waste products to the natural carbon cycle.

During this presentation you will learn about methods to ensure your rubber materials do not linger indefinitely without jeopardizing product integrity, how to validate performance and strategies to build the platform for your sustainability initiatives surrounding the final disposal of your products.

This is a must attend for technical, marketing and sustainability personnel, as well as individuals interested in the biodegradation of rubber waste.

Author:Teresa Clark,

Teresa Clark

Vice President of Product Development

ENSO Plastics, LLC

Teresa Clark is the VP of Product Development with ENSO Plastics, LLC, where she develops sustainable solutions for the materials industry. One key focus is the development of technologies that accelerate the natural bio-remediation of materials in the waste environment. It is on this subject that Teresa created and instructed a continuing education course for the PR College of Engineers. Teresa also developed an educational program for middle school children to educate them on plastics, biodegradation and the environment which has been used in several private schools.

Teresa also is a member of ASTM and sits on several technical sub-committees including; Rubber, Bio-technology, Waste Management, Bio-Technology and Sustainability. She also is the Vice-Chair of Arizona Businesses Advancing Sustainability (AZBAS) where she oversees the development and implementation of sustainable strategies and educational outreach. Teresa is an avid environmentalist with experience in microbiology, chemistry, biodegradation and related environmental fields and holds a passion for sharing her knowledge with the industry. She has been a featured educational speaker at multiple conferences in the plastics, waste management and rubber industries.

ENSO Plastics, LLC

1:30 PM to 1:55 PM

Enhanced Process-effective and Skin-friendly Solutions for the Production of Dipped Goods Using Synthetic Polyisoprene-based Lattices

Enhanced Process-effective and Skin-friendly Solutions for the Production of Dipped Goods Using Synthetic Polyisoprene-based Lattices

For over 10 years Kraton has supplied Cariflex Polyisoprene latex, a synthetic that can run on standard dipping lines, and produces goods characterized by an amazing mix of strength and comfort, while solving Type I allergies encountered with Natural Rubber Latex (NRL). The market is now looking forward to the next generation of improvements – safer, nicer, and more efficient. Recurrent customer demands include options to reduce risks associated to Type IV allergies, that are not related to the elastomeric raw material but rather to the other compounding chemicals. On the manufacturing front, customers always look for improved productivity. We have investigated these topics and will offer avenues to tackle them.

Author:Philippe Henderson, Ph.D.,

Philippe Henderson, Ph.D.

Global Market Development Director--Cariflex® Products

Kraton, Inc.

Dr. Philippe Henderson, based out of Brussels, Belgium, is the Global Market Development Director for Cariflex® Polyisoprene Products at Kraton Polymers, focusing on innovation and growth projects. He holds a Ph.D. in Organic Chemistry and an executive MBA both from the Université Catholique de Louvain in Belgium. After his Ph.D., he spent another year in the academic world developing conductive nanomaterials at the J. Gutenberg University of Mainz, Germany, and then chose to join the industry. First with Shell Chemicals, then Kraton Polymers, he held multiple positions in Belgium and The Netherlands in the R&D, manufacturing, and business areas in support of Cariflex® Polyisoprene Products, which he has done since 1998. Amongst others, he is the pioneer who developed Kraton's Cariflex® Polyisoprene Latex business.

Kraton, Inc.
Co-speaker(s):Aparajita Bhattacharya, Ph.D.,

Aparajita Bhattacharya, Ph.D.

Scientist, Research and Technical Services

Kraton Inc.

Dr. Aparajita Bhattacharya has been with Kraton Polymers since 2013. She is based in Houston, TX and works as a scientist in the Research and Technical Services division. She has been working with Kraton's Cariflex® polyisoprene rubber – both IR latex and solid IR products with a focus on customers based in North America. She holds a Bachelor's in Chemical Engineering from the Institute of Chemical Technology in Mumbai, India and received her Ph.D. in Chemical Engineering from Purdue University in West Lafayette, IN. Her expertise lies in the mechanical and rheological characterization, compounding and formulation development of polymeric materials, specifically elastomers.

Kraton Inc.

1:55 PM to 2:20 PM

Nitrile Glove Performance: New Dimensions in Analysis and Improvement

Nitrile Glove Performance: New Dimensions in Analysis and Improvement

Experimental carboxylated acrylonitrile butadiene rubber (XNBR) latex of medium acrylonitrile level was produced by emulsion polymerisation. The latex generated was compounded into master batch latex using vulcanisation ingredients common in glove manufacturing such as zinc oxide, sulphur, zinc diethydithiocarbarmate and titanium dioxide dispersion. The compounding process was also typical of standard practices within glove dipping. The master batch latex was used to dip six sets of thin disposable gloves at six separate glove manufacturing plants.

Application performance of the gloves was illustrated by physical properties data; tensile strength and force at break, FAB. In addition to the physical properties, for each set of gloves chemical permeation and durability index were also obtained in order to establish gloves chemical performance.

The results showed differences in glove performance depending on the site in which the gloves had been produced even though the gloves had been dipped from the same master batch latex.

Differences in glove performance were investigated using a range of powerful analytical techniques namely: Field Emission Scanning Electron Microscope (FESEM), Atomic Force Microscopy (AFM), Fourier Transform Infrared (FTIR) and Thermal analysis: Differential Scanning Calorimetry (DSC) and Thermal Gravimetry analysis (TGA). The results showed good correlation between analytical data and application performance of gloves dipped in various manufacturing sites.

Author:Thian Hong Ng, Ph.D.,

Thian Hong Ng, Ph.D.

Head of Technical Service, Health & Protection SBU

Synthomer Sdn Bhd

Dr Thian Hong Ng joined Synthomer Sdn Bhd in 2001, a nitrile butadiene rubber (NBR) and styrene butadiene rubber (SBR) polymer manufacturer and was covering the technical functions of quality management, technical support and product development. Current key function is responsible for technical service department for Health & Protection, Strategic Business Unit.

Prior to his current role at Synthomer, he completed his PhD from Brunel University London, United Kingdom in Chemistry and Biorefinery. His PhD topic is "Development of Twin Screw Extrusion for Lignocellulosic Pre-treatment for bio-fuel application". During his research period, he served as an active member in British Bioalcohol Project – HOOCH, United Kingdom and lignin research collaboration with Innventia AB, Sweden.

Thian Hong Ng was raised in Johor, Malaysia and received an honours bachelor degree in Science; majoring in Industrial Chemistry from University of Technology, Malaysia.

Synthomer Sdn Bhd

2:20 PM to 2:45 PM

Applications and Performance of Specialty Nitrile Lattices

Applications and Performance of Specialty Nitrile Lattices

New data generated on Butadiene-based latex compares tensile strength, elongation, and glass transition temperature properties before and after crosslinking. Butadiene-based lattices may offer several types of mechanisms in which to crosslink the polymer to enhance certain features. These can include crosslinking through acid or amide groups, if present, or through vulcanization of the carbon-carbon double-bonds, which are available in all Butadiene-based latex. The data can benefit formulators looking to meet certain physical property requirements that incorporate Butadiene-based lattices in the final end-use application.

Author:Jeffrey A. Mathys, Ph.D.,

Jeffrey A. Mathys, Ph.D.

R & D Manager

Emerald Specialty Polymers, LLC

Jeff Mathys is R&D Manager at Emerald Specialty Polymers, LLC. He completed his education in Chemistry at the University of Akron (B.S. 1990) and the University of Virginia (Ph.D. 1995). After three years of post-doctoral work, he spent nearly a decade at Sigma Aldrich Fine Chemicals in Cleveland, Ohio, in product development and process scale-up. In 2007, he joined the R&D group at Emerald Polymer Additives and Specialty Nitriles with divisional R&D responsibilities, assuming the role of R&D Manager in 2011. Jeff's main area of focus encompasses internal process control and external project development. His team works directly with customers to develop and commercialize specialty latex products for existing and new business opportunities.

Emerald Specialty Polymers, LLC

3:15 PM to 3:40 PM

The First Line of Defense in Infection Prevention--A Global Review of the Disposable Gloves Industry; Trends, Polymers, Technologies and Markets

The First Line of Defense in Infection Prevention--A Global Review of the Disposable Gloves Industry; Trends, Polymers, Technologies and Markets

This paper will provide a sweeping overview of the disposable glove industry, covering market trends, polymers preferred by end users and their advantages, emerging technological and usage patterns. The paper will also review the latest industry developments to cover both the production landscape and geographies as well as end user market and distribution developments.

Author:Ravi Venkat,

Ravi Venkat

Vice President, Marketing & Sales

Medisafe Technologies

Ravi Venkat serves as Vice President, Marketing and Sales at Medisafe Technologies, a leading disposable glove company since 1989. Ravi brings over 18 years of industry experience ranging from upstream commodity latex raw materials to downstream dipped products, as well as deep market insights across both production and end use geographies. He holds a BS in Chemical engineering, a Master's in International Business, and an MBA from IMD, Lausanne.

Medisafe Technologies

3:40 PM to 4:05 PM

Peroxide Crosslinking of Elastomers

Peroxide Crosslinking of Elastomers

Peroxides interact with polymers in a variety of ways. They can be used to make polymers (initiation), modify their rheological properties (visbreaking), alter polarity or attach functional groups (grafting), and enhance high temperature performance (vulcanization). Unlike sulfur vulcanization which is limited to polymers with a significant degree of unsaturation, peroxides can be used to crosslink fully saturated elastomers as well.

Peroxide crosslinking has several advantages over sulfur vulcanization including better heat aging properties, solvent resistance of the final vulcanizate, longer shelf stability of the uncured compound, and no need for accelerators or zinc salts.
The presentation will focus on peroxide crosslinking chemistry and applications as well as potential applications in the latex industry.

Author:Peter Dluzneski, Ph.D.,

Peter Dluzneski, Ph.D.

Senior Research Scientist, Functional Additives, Organic Peroxides

Arkema, Inc.

Peter Dluzneski Ph.D. is currently a Senior Research Scientist at Arkema working in the area of peroxide research and development. He received his BS in Chemistry from Villanova University, a Ph.D. in Analytical Chemistry from the University of North Carolina in Chapel Hill, and an MBA from the University of Delaware. He has been involved with R&D of organic peroxides for over 25 years through his career at Hercules, GEO Specialty Chemicals, and now Arkema and holds a variety of patents. He is a member of the OPPSD (Organic Peroxide Producers Safety Division) and a former Director of the Mid-Atlantic Rubber and Plastics Group.

Pete has six children, the youngest of which is in fifth grade while the oldest just completed law school in North Carolina.

Arkema, Inc.

Wednesday, August 12, 2015

8:30 AM to 8:55 AM

Comparative Durability of Natural and Synthetic Latex Gloves

Comparative Durability of Natural and Synthetic Latex Gloves

The following report includes background information about previous research done in medical glove durability, the current methods and procedures used, and data analysis on the test results performed between August 2013 and February 2015. By investigating conditions to which gloves in the medical field are exposed, a durability test has been conceived. The criteria that these gloves must meet as well as the criteria for the test has been discussed. The team has developed a working standardized system which can be used to test for medical glove durability while it is in use. Alongside the system, standard procedures have been proposed by the team to be used in order to ensure repeatability and consistency. These protocols have been tested and the results gained were successful in distinguishing between the durability of several currently available medical glove materials.

Author:Ryan Michel,

Ryan Michel

The Ohio State University

Ryan Michel recently graduated from The Ohio State University with a degree in Food, Agricultural, and Biological Engineering. Ryan was a member of the Cheerleading program throughout his college career and represented the university at every home game as well as The Orange Bowl. He also received a minor in medieval and renaissance studies, reflecting his wide range of interests. Since graduating, Ryan has been seeking various employment opportunities including finishing up a two year project under Dr. Katrina Cornish that deals with medical glove durability. Ryan can be reached at michel.86@osu.edu.

The Ohio State University

8:55 AM to 9:20 AM

Natural Rubber Applications in Medicine: Benefits and Challenges

Natural Rubber Applications in Medicine: Benefits and Challenges

Natural Rubber Latex (NRL) finds considerable applications in the manufacture of health care products. These products include condoms, pistons, catheters, balloons, stoppers for tubes, piston mask and cannulas Others are femdoms, diaphragms, suction tubes, nasogastric airways, blood bags, oropharyngeal, airways theatre boots, mask, medication vival tops, ambu bags fetal stethoscope speculums This paper aims at reviewing the physico-chemical nature of natural rubber latex, its medical applications and the attendant challenges in service conditions. The complaints discussed here are based on the experience at the University of Benin Teaching Hospital, Nigeria for a period of about five years. It is hoped that this paper will proffer solutions and suggestions that may alleviate most of the challenges presented by patients.

Author:Dosu Malomo, Ph.D.,

Dosu Malomo, Ph.D.

Senior Lecturer/Researcher, Department of Industrial Chemistry

Federal University Oye Ekiti, Nigeria

Dosu Malomo, PhD started his research in Rubber Science and Technology with the University Of Benin, Nigeria in 1989 during his master's degree programme. He worked in the area of the Characterisation of Nigerian Rubber Clones using the laboratories and workshops of the Rubber Research Institute of Nigeria. He further extended his studies in Rubber Compounding Technology with Ambrose Alli University, Nigeria for the award of a PhD degree in 2008.He taught with the Western Delta University Oghara from 2008 to 2013 and he is currently a Senior Lecturer with the Federal university Oye – Ekiti, Nigeria.

Malomo is a member of Chemical Society of Nigeria, Polymer Institute of Nigeria and recipient of the distinguished fellowship status of the Institute of Chattered Chemists of Nigeria (FICCON). He has a certificate in Basic Rubber Compounding of The TIRE EXPO 2014 in Germany. Malomo is a guest speaker to a number of international organisations and has published copiously in local and International Journals.

Federal University Oye Ekiti, Nigeria
Co-speaker(s):Osayande Omwanor, MD,

Osayande Omwanor, MD

Medical Doctor

University of Benin Teaching Hospital, Benin City, Nigeria

Osayande Moses Omwanor MBBS trained as a medical Doctor and started his research during his training program as a resident Doctor in the Emergency Department of the University of Benin Teaching Hospital in 2011.He is currently working on the major causes of patients brought into the emergency room dead (BID) and other medical research works. Omwanor is a member of Association of Resident doctors (UBTH Chapter), and also a fully registered Doctor with the Medical and Dental Council of Nigerian.

University of Benin Teaching Hospital, Benin City, Nigeria

9:20 AM to 9:45 AM

Canonical Correlation Analysis of Type I and Type IV Hypoallergenic Natural Rubber Thin Films

Canonical Correlation Analysis of Type I and Type IV Hypoallergenic Natural Rubber Thin Films

Elastomeric medical products, such as examination and surgical gloves, catheters, and condoms are often made from natural rubber latex (NRL). NRL is derived from the plant species, Hevea brasiliensis, and contains numerous allergenic proteins capable of eliciting Type I allergic systemic reactions, including hives, edema, anaphylaxis and death. As a result, synthetic elastomers with inferior mechanical properties have replaced some NRL products. However, compounding additives to both natural and synthetic diene polymers are capable of eliciting Type IV allergies characterized by contact dermatitis.

Type IV hypoallergenic natural rubber latex thin films were created using the chemical crosslinkers zinc diisononyl dithiocarbamate (ZDNC) and diisopropyl xanthogen (DIXP), which do not induce Type IV reactions. DIXP and ZDNC concentrations were optimized in circumallergenic NRL from Parthenium argentatum (commonly called guayule) and hypoallergenic NRL Hevea Brasiliensis (soluble proteins removed) to generate vulcanized thin films in a variety of thicknesses. Film tensile properties were assessed (ASTM D 412). Mixed linear and non-linear stochastic multivariate regression models were created for each type of latex, predicting mechanical properties from film thickness and concentrations of DIXP and ZDNC. Canonical correlation analysis determined correlations between mechanical properties, as well as between inputs and mechanical properties for each type of latex.

Optimal chemical formulations varied between types of latex. Modeling of individual mechanical properties showed that stochastic multivariate regression models using mixed non-linear and linear components had R2 > 0.90. Canonical correlations showed that mechanical properties at failure (ultimate elongation and tensile strength) were correlated (R2 > 0.90) whereas modulus was not correlated to ultimate elongation or tensile strength for mixed models with DIXP and ZDNC concentrations as significant predictors.

Type IV and Type I hypoallergenic films were created from both types of latex, which exceeded standards for surgical gloves (ASTM D 3577). The multivariate modeling and canonical correlation modeling provide insight into the different roles of compounding ingredients in final product performance.

Author:Lauren Slutzky, Ph.D.,

Lauren Slutzky, Ph.D.

Research Engineer, Department of Advanced Materials

Battelle Memorial Institute

J. Lauren Slutzky graduated with her Doctorate in Biological Engineering from The Ohio State University in Summer 2015. She is currently a research engineer in the Department of Advanced Materials at Battelle Memorial Institute. Slutzky was a Semi-Finalist of the Presidential Management Fellowship in 2015, supported by the U.S. Office of Personnel Management. She also was named honorable mention for the National Science Foundation Graduate Research Fellowship in 2013.

OSU's Department of Food, Agricultural and Biological Engineering voted Slutzky as the student researcher of the year in 2014. Slutzky was the recipient of the Charles Thorne Memorial Fellowship in 2014, which is awarded to the top student at OSU's College of Food, Agricultural, and Environmental Sciences. Slutzky also won first place at Case Western Reserve University's Polymer Initiative of Northeast Ohio Conference.

Battelle Memorial Institute

9:45 AM to 10:10 AM

Immunochemical Analysis of Latex Proteins from Rubber Dandelion

Immunochemical Analysis of Latex Proteins from Rubber Dandelion

The public health risk of Type I latex allergy, caused by residual latex proteins in Hevea brasiliensis rubber latex products, has led to some gloves and other health-related products being made from synthetic polymers. However, they are not preferred by healthcare providers due to their physical limitations. Guayule latex, from the alternate rubber crop Parthenium argentatum, has been proved to contain none of the protein antigens and immunogens in Hevea natural rubber latex and its products. Another alternate rubber crop now under commercial development is Taraxacum kok-saghyz, and reports abound in which it is assumed that, like guayule, its rubber and latex are innocent of proteins that can trigger allergic reactions in Type I latex sensitized people. Using ELISA's and immunoblots, we have tested anti-Hevea brasiliensis latex protein murine monoclonal IgGs, rabbit polyclonal IgG and human IgE antibodies against T. kok-saghyz latex and purified rubber particles. We demonstrate that this latex contains many cross-reactive proteins, including with the human IgE from Type I latex allergic individuals with clinical symptoms.

Author:Katrina Cornish, Ph.D., FAAAS,

Katrina Cornish, Ph.D., FAAAS

Ohio Research Scholar and Endowed Chair in Bioemergent Materials

The Ohio State University

Dr. Katrina Cornish is the Ohio Research Scholar and Endowed Chair in Bioemergent Materials at The Ohio State University, and is Director of Research for the Program of Excellence in Natural Rubber Alternatives, a private/public consortium. She is a leading global expert on alternate rubber production, processing and products, from hypoallergenic latex to liquid biofuels, and her inventions form the foundation of the domestic rubber industry. Katrina was, for six years, the Senior Vice President of R&D at Yulex Corporation, where she oversaw the company's ongoing research, development, crop science, production, validation and regulatory programs for the commercialization of Guayule latex applications in the manufacturing of safe medical devices and specialty consumer products, including extramural programs. Prior to Yulex, Katrina led the U.S. government's development of domestic natural rubber sources for 15 years. Katrina serves on the Scientific Advisory Board of NARA (North American Renewable Fuels Alliance), on the board of directors of Edison Agrosciences LLC., and of Believe in Ohio, and servers on several journal Editorial Boards. She has >200 publications and patents. In addition, she is CEO of four start-up companies, EnergyEne Inc., EnergyEne Australia Pty. Ltd, EnergyEne Africa, and DamSafe LLC.

The Ohio State University

10:40 AM to 11:05 AM

Performance of Nitrile and Natural Rubber Latex Blended Thin Films

Performance of Nitrile and Natural Rubber Latex Blended Thin Films

One of the main uses of natural rubber latex is in thin film barrier products such as condoms, dental dams and medical gloves. Both Hevea brasiliensis and Parthenium argentatum Gray (commonly known as the guayule) latex can be used to make high performance films, with better physical properties than synthetic elastomers. Guayule latex combines performance with latex allergy avoidance and so is an excellent source of latex for medical applications. In general, natural rubber withstands water, alcohols, and some ketones. However, natural rubber has poor chemical resistance against most hydrocarbon and organic solvents. Nitrile rubber is used in numerous applications because of its resistance to attack by a wide variety of chemicals, oils and fuels, but film physical properties are dependent upon the specific polymer and the compound used. Also, although nitrile rubber usually is more resistant than natural rubber to oils and acids, it has inferior strength, tear resistance and flexibility. In this study, thin films were made with different ratios of natural rubber (from Hevea and guayule) blended with nitrile. Their physical properties and solvent resistance were tested and analyzed to determine if an improved properties balance can be achieved.

Author:Katrina Cornish, Ph.D., FAAAS,

Katrina Cornish, Ph.D., FAAAS

Ohio Research Scholar and Endowed Chair in Bioemergent Materials

The Ohio State University

Dr. Katrina Cornish is the Ohio Research Scholar and Endowed Chair in Bioemergent Materials at The Ohio State University, and is Director of Research for the Program of Excellence in Natural Rubber Alternatives, a private/public consortium. She is a leading global expert on alternate rubber production, processing and products, from hypoallergenic latex to liquid biofuels, and her inventions form the foundation of the domestic rubber industry. Katrina was, for six years, the Senior Vice President of R&D at Yulex Corporation, where she oversaw the company's ongoing research, development, crop science, production, validation and regulatory programs for the commercialization of Guayule latex applications in the manufacturing of safe medical devices and specialty consumer products, including extramural programs. Prior to Yulex, Katrina led the U.S. government's development of domestic natural rubber sources for 15 years. Katrina serves on the Scientific Advisory Board of NARA (North American Renewable Fuels Alliance), on the board of directors of Edison Agrosciences LLC., and of Believe in Ohio, and servers on several journal Editorial Boards. She has >200 publications and patents. In addition, she is CEO of four start-up companies, EnergyEne Inc., EnergyEne Australia Pty. Ltd, EnergyEne Africa, and DamSafe LLC.

The Ohio State University

11:05 AM to 11:30 AM

Environmentally Friendly Ultra Low Protein Natural Rubber Latices and Prevulcanised Latices

Environmentally Friendly Ultra Low Protein Natural Rubber Latices and Prevulcanised Latices

There have been some significant recent advances in aluminum hydroxide treated Ultra Low Protein Latices (ULPL) which can be used in select end use applications. These findings are presented in this paper together with the analysis of the non hydrocarbons that are present. The properties and applications of these new ULPL grades address the issues of Volatile Organic Content and Nitrosamines which are relevant in some critical latex products such as balloons, catheters, and condoms. In conjunction with the development of the advanced grades of Prevulcanised Ultra Low Protein Latices, further studies show they conform to Ultra Low Ammonia (ULAL and ULAPVL) versions as a simple latex and a prevulcanised latex thus enhancing the working environment in certain industries and providing a simplified raw material. No Ammonia (NAL and NAPVL) and No Nitrosamine (NNL and NNPVL) standards are discussed.

Author:Ranjit K. Matthan, Ph.D.,

Ranjit K. Matthan, Ph.D.

Director

Vystar Corporation; Polymer Consultancy Services (P) Ltd.

Dr. Ranjit Matthan has been associated with the development of natural rubber and rubber based industries manufacturing in South Asia since the 1970s and introduced technically specified natural rubber into India. He has advised national and international companies and research bodies including the Government of India, the Malaysian Rubber Research and Development Board, Asian Development Bank, Industrial Development Bank of India, Revertex (Malaysia) as well as many private companies engaged in latex production and manufacturing. A founding Director of the Bangkok-based Asia Pacific Elastomer Science and Technology (APEST), he has played a key role in sustainability initiatives for natural rubber. He has also been associated with the development and commercial introduction of several eco-friendly natural rubber grades, including Vytex NRL. Dr. Matthan has received numerous industry awards, including: the prestigious 2014 Institute of Materials, Minerals and Mining, U.K.'s Hancock Medal for his contributions to the development of the environmentally friendly sustainable growth of the global natural rubber industry, and the 2006 KMPhilip Award from the All India Rubber Industries Assoc. for significant contributions toward the development of the Indian Rubber Industry. He has published over 50 scientific and technical papers on natural rubber and latices and is an invited speaker at several international conferences.

Vystar Corporation; Polymer Consultancy Services (P) Ltd.

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