Foams made from interpolymers of ethylene/alpha-olefins

Details Foams made from interpolymers of ethylene/alpha-olefins Foams made from interpolymers of ethylene/alpha-olefins

C - Chemistry, Metallurgy

08

L

C08L 23/08 (2006.01) C08J 3/24 (2006.01) C08J 9/04 (2006.01) C08J 9/18 (2006.01) C08L 31/04 (2006.01)

Patent

CA 2601199

Foamable compositions and foams comprise at least an ethylene/.alpha.-olefin interpolymer. The foam has a density from greater than 150 to about 500 kg/m . The foamable compositions further comprise a blowing agent and a crosslinking 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 foams; and foamed articles made from the foams are also described.

L'invention concerne des compositions pouvant mousser et des mousses comprenant au moins un interpolymère éthylène / a-oléfine. La mousse présente une densité comprise entre 150 et 500 kg/m<SUP>3</SUP>. La composition se présentant sous forme de mousse comprend, de plus, un agent d'expansion et un agent de réticulation. L'interpolymère éthylène / a-oléfine est un copolymère multi-blocs comprenant au moins un bloc souple et au moins un bloc dur. L'invention concerne des procédés de fabrication de compositions pouvant mousser et des articles en mousse fabriqués à partir des mousses de l'invention.

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