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Formulation Strategy

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By: Karen McIntyre

Editor, Nonwovens Industry

Eastman Chemical Company is offering a new formulation strategy help tape and label manufacturers seek alternative ingredients for hotmelt pressure sensitive adhesives for packaging tapes and labels. These manufacturers have been seeking alternatives in the wake of a shortage of isoprene. The new solution was presented in a technical paper at the Pressure Sensitive Tape Council’s TECH XXIX Technical Seminar held May 4-5 in Las Vegas, NV. Eastman’s technical study reports that depending on the specific performance demands of a given HMPSA application, it is now possible to provide substantial substitution of isoprene monomers in an adhesives formulation using a blend of the KRATON Polymers SIBS (styrene-isoprene-butadiene-styrene) block copolymer and SBS (styrene-butadiene-styrene) block copolymer.

The study concludes that proper blending of SIBS and SBS, combined with Eastman’s Piccotac 7590-N hydrocarbon resin, allows adhesives formulators a cost-effective, viable alternative.  
www.eastman.com

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