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New Advances in Kraton SIBS and SBS Polymer Blends Offer Tape Manufacturers Cost Savings and Flexibility

Published on 2009-06-05. Author : SpecialChem

HOUSTON -- Kraton Polymers LLC (Kraton), a leading global producer of engineered polymers, announces new advances in pressure sensitive adhesives for the tape market. Kraton Polymers has determined it is now possible to blend Kraton styrene-isoprene-butadiene-styrene (SIBS) and styrene-butadiene-styrene (SBS) polymers with rosin ester tackifying resins.

The initial testing indicates the unique combination of Kraton SIBS and SBS with a rosin ester can produce a tape with properties similar to a traditional SIS and C5 hydrocarbon resin formulation, resulting in a system cost savings of 10% to 20%. The SIBS product is more compatible with the SBS, allowing higher concentrations of the lower cost SBS in tape formulations while maintaining excellent pressure sensitive performance. In addition, rosin esters typically have a cost advantage over traditional hydrocarbon resins.

Kraton Polymers currently manufactures two commercial SIBS grades (Kraton D1170 polymers and Kraton D1171 polymers), which are available globally. They are highly compatible with diverse ranges of formulating ingredients, including tackifying resins, plasticizers, fillers and additives. These polymers are characterized by their high cohesive strength, colorless appearance and excellent heat stability. Kraton SIBS polymers are conveniently offered in free-flowing pellet form which can be compounded and blended in mixing equipment commonly used with typical styrenic block copolymers.

"Raw material shortages and price increases have contributed to the styrenic block copolymer (SBC) hot melt technology losing share to alternate technologies," commented David Bradley, Chief Operating Officer. "We maintain a firm commitment to provide materials to our customers that reduce costs and promote performance. Our SIBS not only offers substantial cost savings, it offers versatility and greater stability in the supply chain for hot melts."

The result of Kraton Polymers' efforts is a new class of polymers that targets performance, cost effectiveness and process efficiency for emerging tape applications. Kraton's commitment to partnering with its customers ensures its ability to deliver high performance and high value products to the industry. As the leading global producer of engineered polymers, Kraton Polymers continues its long tradition of giving innovators their edge.

About Kraton

Kraton is a leading global producer of engineered polymers and, we believe, the world's largest producer of styrenic block copolymers (SBCs), a family of products whose chemistry was pioneered by us over forty years ago. SBCs are highly-engineered thermoplastic elastomers, which enhance the performance of numerous products by delivering a variety of attributes, including greater flexibility, resilience, strength, durability and processability. Kraton polymers are used in a wide range of applications, including adhesives, coatings, consumer and personal care products, and sealants, lubricants, medical, packaging, automotive, paving, roofing and footwear products. Kraton has the leading position in nearly all of its core markets and is the only producer of SBCs with global manufacturing capability. Its production facilities are located in the United States, Germany, France, The Netherlands, Brazil and Japan.

Kraton, the Kraton logo and design, and the "Giving Innovators their Edge" tagline are trademarks of Kraton Polymers LLC.

Forward Looking Statements

This press release includes "forward-looking statements," which are statements other than statements of historical fact and are often characterized by the use of words such as "believes," "expects," "estimates," "projects," "may," "will," "intends," "plans" or "anticipates," or by discussions of strategy, plans or intentions. All forward-looking statements in this press release are made based on management's current expectations and estimates, which involve risks, uncertainties and other factors that could cause results to differ materially from those expressed in forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements. We assume no obligation to update such information.

Source: Kraton


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