Soft foams made from interpolymers of ethylene/alpha-olefins

Details Soft foams made from interpolymers of ethylene/alpha-olefins Soft foams made from interpolymers of ethylene/alpha-olefins

C - Chemistry, Metallurgy

08

L

C08L 23/08 (2006.01) C08J 9/04 (2006.01) C08J 9/18 (2006.01) C08L 23/06 (2006.01) C08L 23/12 (2006.01) C08L 53/00 (2006.01)

Patent

CA 2601286

Foamable compositions and soft foams comprise at least an ethylene/.alpha.- olefin interpolymer. The soft foam has a density from about 10 to 150 kg/m . The foamable compositions further comprise a blowing agent. The ethylene/.alpha.-olefin interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block. Methods of making the foamable compositions and soft foams; and foam articles made from the soft foams are also described.

La présente invention concerne des compositions moussables et des mousses souples comprenant au moins interpolymère d'éthylène/a-oléfines. La densité de la mousse souple se situe entre 10 et 150 kg/m3 environ. Les compositions moussables comprennent en outre un agent gonflant. Ces interpolymères d'éthylène/a-oléfines sont des copolymères multiblocs comprenant au moins un bloc souple et au moins un bloc dur. L'invention concerne également des procédés de fabrication de ces compositions moussables et mousses souples, ainsi que des articles en mousses faits dans les mousses souples de l'invention.

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