Patent ID: 6806313
Filing Date: 2004-10-19
Classification: C08K,C08L,C09K,C10M,C10N

Abstract:
A composition, comprising:(A) a matrix polymer, copolymer, or blend thereof, which is essentially free of erucamide, which is essentially free of unsaturated amide, and which is operative to provide a container, container closure, or closure sealant, said matrix polymer, copolymer, or blend thereof being selected from thermoplastic polymers consisting of polyethylene or ethylene copolymer with other lower alkenes, polypropylene, thermoplastic rubber, poly (ethylene propylene) copolymer, acid modified ethylene propylene copolymer, styrene butadiene rubber, carboxylated styrene butadiene block copolymer, polyisoprene, styrene isoprene styrene block copolymer, styrene butadiene styrene block copolymer, styrene ethylene butylene styrene block copolymer, polystyrene block polyethylene/propylene copolymer, ethylene vinyl acetate copolymer or terpolmer, ethylene acrylate copolymer or terpolymer, ethylene vinyl alcohol copolymer, butyl rubber, and poly(vinyl chloride) polymer; (B) a lubricant comprising an organopolysiloxane, said organopolysiloxane having an average molecular weight not less than 40,000, said organosiloxane being present in said composition in an amount not less than 0.01 parts and not greater than 10 parts based on 100 parts of said matrix polymer, copolymer, or blend thereof which comprises said component (A), and said organopolysiloxane having a viscosity of at least 50.000 cst; and (C) a slip aid comprising a saturated amide and an oxidized polyethylene, said slip aid being present in said composition in an amount not less than 0.01 parts and not greater than 8 parts based on 100 parts of said component (A), said amide having an iodine value no greater than 5 in accordance with ASTM D2075-92; said composition when employed in a container, container closure, or closure sealant providing reduced off-tastes while maintaining slip-aid efficiency when compared to compositions containing unsaturated amide.