Create an impact with Kuraray elastomers
Kuraray Liquid Rubber
Leading innovation with Kuraray's Elastomers
Developing unique Elastomers for Half a Century
At Kuraray, we create value for people and the planet around the world. Founded in 1926 in Japan, our innovative specialty chemicals, fibers, resins, and films serve as the backbone for a wide range of prod- ucts used in everyday applications – from healthcare, automotive, and agriculture to architecture, cosmetics, electronics, and textiles. We operate office, production, and re- search and development facilities in 31 countries and employ more than 11,000 team members worldwide. While we act globally, we support our customers and clients locally. At Kuraray, we co-create our future through a value based collabo- ration approach with our customers. As a global leader in specialty chemicals, our expertise has withstood the test of time due to our commitment to innova- tion, sustainability, community, and col- laboration. We continually streamline our processes and practices to advance our commitment to protecting the environ- ment, improving global health, and creat- ing cleaner chemicals.
We launched our Elastomer division in 1972 with the production of polyiso- prene rubber. Today, we operate four elastomer production facilities – located in Houston, Kashima, Niigata, and Thai- land – that can produce 84,000 tons of materials each year. In addition, our three research centers from Texas to Japan give Kuraray’s customers the best glob- al research and development expertise available. Over the past five decades, our com- mitment to continuous innovation grew, allowing us to invent new products that have played a vital role in the medical, communications, and automotive fields.
SEPTON™ High-performance TPE SEPTON™ is a series of styrenic thermoplastic elastomers used in a great number of TPE compounds.
SEPTON™ BIO-series Bio-based TPE SEPTON™ BIO-series is a unique bio-based, styrenic thermoplastic elastomer made from a beta-farnesene monomer derived from sugar cane, with a bio-content up to 80%.
SEPTON™ Specialty Grades
Using its proprietary polymer synthesis and modification technol- ogies, Kuraray has developed several unique specialty grades, which are called SEPTON™ V-series, SEPTON™ J-series, and SEPTON™ Q-series.
HYBRAR™ Vinyl-rich,
KURARITY™ Acrylic & transparent TPE KURARITY™ is a series of acrylic block copolymers with exceptional transparency,
Kuraray Liquid Rubber High-performance synthetic rubber KURARAY LIQUID RUBBER is a reactive plasticizer with low volatiles that enhance the rubber compound properties.
high-performance TPE HYBRAR™ is a unique block copolymer consisting of polystyrene end blocks and a vinyl-bond rich poly-diene midblock that presents peak tan delta.
weather-resistance, self adhesion, and compatible with polar materials.
Liquid Farnesene Rubber Bio-based liquid rubber Liquid farnesene rubber is a unique bio-based, liquid rubber made from a beta-farnesene monomener derived from sugar cane, with a high bio-content and significant green- house gas reductions.
ISOBAM™ Water-soluble polymer
ISOBAM™ is an isobutylene and maleic anhydride copolymer, soluble in water and alkali water.
SEPTON™
High-performance TPE
SEPTON™ is a series of styrenic thermoplastic elasto- mers used in a great number of TPE compounds and can be processed in various forms. The Hydrogenated Styren- ic Block Copolymers (HSBCs) consist of styrene-based hard blocks and a hydrogenated diene soft block. These styrenic TPEs cover a broad range of applications includ- ing compounds, polymer modification adhesives, flexible PVC substitutes and vibration damping products.
Applications
Features and benefits
▪ Compounding ▪ Consumer goods
▪ Excellent mechanical properties ▪ UV-/Weather resistant ▪ Good resistance to chemicals ▪ Good low temperature performance ▪ Non-toxic ▪ High heat resistance ▪ Excellent electrical insulation ▪ Rubber-like elasticity ▪ Recyclable
▪ Medical ▪ Mobility ▪ Oil modification ▪ Sporting goods & footwear
SEPTON™ Specialty Grades
Using its proprietary polymer synthesis and modification technologies, Kuraray has devel- oped several unique SEPTON™ grades. Each series covers a broad range of product proper- ties, including being super soft and having superior heat resistance. SEPTON™ Q-series is a range of thermoplastic elastomers that combines softness and elas- ticity. SEPTON™ V-series is a block copolymer with reactive and crosslinkable, hard and soft blocks. SEPTON™ J-series is Kuraray’s specialty product for high-performance gels.
Bio-based TPE SEPTON™ BIO-series
SEPTON™ BIO-series is a unique hydrogenated styrene farnesene block copolymer (HSFC). Kuraray is the first and only manufacturer of bio-based HSBC materials on the market. As one of the leading suppliers of TPEs, Kuraray is responding to increasing industry demand for more sustainable materials that can significantly improve improve an end product's envi- ronmental footprint.
Features and benefits
Applications*
▪ Bio-based polymer with up to 80% bio content ▪ Lower greenhouse gas emissions than conventional SEBS/SEEPS ▪ Excellent wet and dry grip performance ▪ Strong and stable adhesion force across a wide temperature range ▪ Good processability ▪ Good damping properties over a wide temperature range ▪ Low compression set, low permanent set ▪ Soft without plasticizer ▪ Enables adhesive applications with excellent removability and no residue
▪ Adhesives, coatings, sealants ▪ Compounding ▪ Consumer goods ▪ Electronics ▪ Industrial & construction ▪ Mobility ▪ Sporting goods & footwear ▪ 3D printing
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Up to 33% reduction in greenhouse gas emissions**
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HSBC SF902 SF903 SEPTON™ SEPTON™ BIO-series
* For certain applications, SEPTON™ BIO-series cannot be introduced due to raw material supply relations. Please contact our sales representatives.
**Assumptions & Limitations For detailed information on measure- ments, assumptions and limitations, please contact our sales representatives.
Principles & Frameworks ▪ Calculation principles & frameworks: ISO14040:2006 and ISO14044:2006 ▪ Lifecycle Inventory database: IDEA (Inventory Database for Environmental Analyses) version 2.3 ▪ LCIA model: IPCC AR5 100a
System Boundaries ▪ Cradle to gate ▪ Biogenic darbon absorption is included ▪ Incineration and transportation to customer sites are not included
HYBRAR™ Vinyl-rich, high-performance TPE
HYBRAR™ is a truly unique block copolymer consist- ing of polystyrene end blocks and a vinyl bond rich poly-diene midblock. Due to its peak tan del- ta over a broad temperature range, HYBRAR™ exhibits high vibration damping and shock absorption properties. Unlike PVC and oth- er SBCs, products manufactured using HYBRAR™ do not need a plasticizer. The highly elastic styrenic block copolymer HYBRAR™ can be processed in a wide vari- ety of forms, including films, tubes, foams, and injection molding. HYBRAR™ products are available as hydrogenated and non- hydrogenated grades. Hydrogenated grades of HYBRAR™ have excellent compatibility with polypropylene resulting in excellent trans- parency and clarity when blended.
Applications
Features and benefits
▪ Compounding ▪ Food and packaging ▪ Industrial and construction ▪ Medical ▪ Mobility ▪ Sporting goods and footwear
▪ Excellent vibration damping over a broad temperature range ▪ High affinity for polyolefins and polystyrene ▪ Good moldability ▪ Can be cross-linked like vulcanizable rubber ▪ Rubber-like elasticity ▪ Very good heat and weather resistance ▪ Alternative to PVC ▪ No additional plasticizers required
Kuraray Liquid Rubber High-performance synthetic rubber Kuraray Liquid Rubber functions as ˝reactive plasticizers˝, they help reduce Mooney viscos- ity and facilitate the mixing process. Kuraray Liquid Rubber is co-vulcanizable with the base rubber, significantly reducing migration, massively improving shelf-life and durability of the products.
Features and benefits
Applications
▪ Transparent ▪ Colorless ▪ Odorless ▪ Low VOCs
▪ Tires ▪ Rubber goods ▪ Adhesives ▪ Automotive sealants
Types
▪ Liquid Polybutadiene (L-BR) ▪ Liquid Polyisoprene (L-IR) ▪ Liquid Polystyrene-Butadiene (L-SBR) ▪ Functionalized: carboxylated, UV-curable, silane-modified ▪ Bio-based: Liquid Farnesene Rubber (L-FR)
Liquid Farnesene Rubber Bio-based liquid rubber Kuraray has expanded its liquid rubber portfolio with liquid farnesene rubber, a product based on natural and renewable materials. It contains a polymerized form of beta-farnesene, a bio-based monomer. Liquid farnesene rubber functions like a reactive plasticizer, but has a much higher molecular weight than normal plasticizers. The co-vulcanizable material signifi- cantly reduces migration, which improves the durability of rubber compounds. Its use during the rubber compounding stage significantly reduces processing time while maintaining the physical properties of rubber compounds. This results in lower processing costs.
Applications
Features and benefits
▪ Adhesives, coatings, sealants ▪ Rubber compounding ▪ Mobility ▪ Sporting goods & footwear
▪ Bio-based material ▪ Good plasticizing effect ▪ Low migration
▪ Low tan δ over a wide temperature range ▪ Excellent softening effect at low tempe- rature (low Tg) ▪ Less entanglement between mo lecules ▪ High reactivity of branched double bonds ▪ High molecular weight and low viscosity
Up to 108% reduction in greenhouse gas emissions**
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L-IR-50 L-BR-307 L-FR-107L L-FBR-746 L-FRB-742 Kuraray Liquid Rubber Liquid Farnesene Rubber
* For certain applications, liquid farne- sene rubber cannot be introduced due to raw material supply relations. Please contact our sales representatives.
**Assumptions & Limitations For detailed information on measure- ments, assumptions and limitations, please contact our sales representatives.
Principles & Frameworks ▪ Calculation principles & frameworks: ISO14040:2006 and ISO14044:2006 ▪ Lifecycle Inventory database: IDEA (Inventory Database for Environmental Analyses) version 2.3 ▪ LCIA model: IPCC AR5 100a
System Boundaries ▪ Cradle to gate ▪ Biogenic darbon absorption is included ▪ Incineration and transportation to customer sites are not included
KURARITY™
Acrylic & transparent TPE
KURARITY™ is a series of acrylic block copolymers that are produced using Kuraray’s unique anionic, living-polymerization technology, which consists of methyl-metacrylte hard blocks (PMMA-blocks) and an acrylic-based soft block (a PnBA-block or a P(nBA/2EHA)-block).
Features and benefits
Applications
▪ Excellent clarity ▪ Excellent weatherability ▪ Extremely low residual monomer or oligomer ▪ Self-adhesive without tackifier and plasticizer ▪ Good compatibility with polar materials
▪ Modifiers, additives ▪ Adhesives ▪ Molding materials
ISOBAM™ Water-soluble polymer
ISOBAM™ is an alkali, water-soluble copolymer made of isobutylene and maleic anhydride. The material has a white, powdery appearance and offers outstanding properties, such as hardness and heat resistance that conventional water-soluble polymers such as polyvinyl alcohol and cellulose derivatives have not yet achieved. ISOBAM™ reacts with chemicals such as sodium hydrate, ammonia and amine, and can be used as an aqueous solution. An important field of application for ISOBAM™ is metal processing, where it is used as a forging lubricant. With excellent water resistance and tackiness, it can also be used as an adhesive, in glass fibers, as a binder for ceramic powders, and in other applications.
Applications
Features and benefits
▪ Metal processing ▪ Adhesives ▪ Glass fibers ▪ Binder for ceramics
▪ Alkali, water-soluble ▪ Excellent heat and water resistance ▪ Environmentally friendly compared to solvent
Adding value to your products–worldwide
Frankfurt, Germany
Tokyo, Japan
Houston, Texas, USA
Shanghai, China
New Delhi, India
São Paulo, Brasil
Kuraray is a world leader in specialty chemicals and functional materials. We are committed to developing products that ensure quality and value while helping our customers differentiate themselves from their competition. Kuraray's Elastomer Division started in 1972 with the production of polyisoprene rubber and the development of new rubber materials based on Isoprene in the Kashima Plant. From the first
production line, the Elastomer Division continuously grew and invented new products such as KURARAY LIQUID RUBBER, ISOBAM TM , SEPTON TM , HYBRAR TM , and KURARITY TM . Kuraray strives to develop new and innovative high- performance products for customers around the globe. Learn more about Kuraray's Elastomer products, visit elastomer.kuraray.com .
Kuraray America, Inc. 3700 Bay Area Blvd., Suite 680 Houston, Texas 77058 United States of America P 1.800.423.9762 � septon.sales@kuraray.com Kuraray Trading (Shanghai) Co., Ltd. 3 Hongqiao Road, Xuhui District Shanghai 200030, China P +86 21 6407 9182 � elastomer.china@kuraray.com
Kuraray Europe GmbH Philipp-Reis-Straße 4 65795 Hattersheim am Main Germany P +49 69 305 85300 � elastomer@kuraray.com
Kuraray Co., Ltd. Tokiwabashi Tower 2-6-4, Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan P +81 3 6701 1662 � elastomer.info@kuraray.com Kuraray South America Ltda. Av. Paulista, 1636 - Sala 405 01310-200 Sao Paulo, Brasil P +55-11-2615-3531 � elastomer.sa@kuraray.com
Kuraray India Private Limited Prius Platinum 2nd Floor B Wing,
D3 District Centre Saket New Delhi -110017, India P +91-11-4090-4400 � inquiry.kid@kuraray.com
Disclaimer: The information provided herein corresponds to Kuraray’s knowledge on the subject at the date of its publication. This information may be subject to revision as new knowledge and experience becomes available. The information provided falls within the normal range of product properties and relates only to the specific material designated; this data may not be valid for such material used in combination with any other materials or additives or in any process, unless expressly indicated otherwise. The data provided should not be used to establish specification limits or used alone as the basis of design; they are not intended to substitute for any testing you may need to conduct to determine for yourself the suitability of a specific material for your particular purposes. Final determination of suitability of any material or process and whether there is any infringement of patents is the sole responsibility of the user. Since Kuraray cannot anticipate all variations in actual end-use conditions, Kuraray makes no warranties and assumes no liability in connection with any use of this information. Copyright © 2022 Kuraray Co., Ltd. All rights reserved. SEPTON, HYBRAR, KURARITY and ISOBAM are trademarks or registered trademarks of Kuraray Co., Ltd. or its affiliates. Trademarks may not be applied for or registered in all countries.
10/2022 For the latest information visit: elastomer.kuraray.com
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