Patent ID: 8956706
Filing Date: 2015-02-17
Classification: B29C,B29L,C08J,C08L,F16L,Y10T

Abstract:
1. A flexible biopharmaceutical thermoplastic elastomer tubing material comprising a gamma and/or e-beam radiation crosslinked blend of: a) a first elastomeric polymer including a styrenic thermoplastic elastomer comprising a styrene-butadiene-styrene (SBS), a styrene-isoprene- styrene (SIS),a styrene-ethylene butylene-styrene (SEBS), a styrene-ethylene propylene- styrene (SEPS), a styrene-ethylene-ethylene-butadiene-styrene (SEEBS), a styrene-ethylene-ethylene-propylene-styrene (SEEPS), a styrene-isoprene-butadiene-styrene (SIBS), or any combination thereof; b) a second elastomeric polymer including a polyolefin elastomer, with the proviso that the first elastomeric polymer and the second elastomeric polymer are different; and c) a plasticizer comprising a mineral oil, wherein the first elastomeric polymer is present in an amount of at least 10% by weight of the blend and the tubing material has a compression set of 18% or less at a temperature of about 121 ° C.