C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 53/02 (2006.01) B29C 47/06 (2006.01) B32B 5/18 (2006.01) B32B 27/00 (2006.01) B32B 27/30 (2006.01) C08L 23/00 (2006.01) C08L 23/02 (2006.01) C08L 23/18 (2006.01) C08L 23/26 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2172923
There is provided a composition and a polymer film which resists the blistering action of polymer foam blowing agents upon plastics such as styrene- based polymers. The polymer film provides a suitable barrier in refrigeration applications where a high impact polystyrene (HIPS) is particularly susceptible to chemical attack from polyurethane halogenated blowing agents. There is also provided a composite made of a thermoplastic synthetic resin sheet such as HIPS, the polymer film, a polymer foam, and an outer wall element. The polymer film is a mixture of at least three polymers and copolymers: a polyolefin, a copolymer derived from monomers comprising an ethylenically unsaturated aliphatic or alicyclic hydrocarbon monomer and a monomer compound containing a vinyl group and a carboxylic acid group, and a synthetic block copolymer.
Basf Corporation
Robic
Stevens James
LandOfFree
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