Polyolefin foams made with isopentane-based blowing agents

Details Polyolefin foams made with isopentane-based blowing agents Polyolefin foams made with isopentane-based blowing agents

C - Chemistry, Metallurgy

08

J

C08J 9/228 (2006.01) C08J 9/12 (2006.01) C08J 9/14 (2006.01) C08L 23/06 (2006.01)

Patent

CA 2490247

A blowing agent blend for making polyolefin foams comprising isopentane and at least one co-blowing agent. The co-blowing agent is either a physical co- blowing agent having a boiling point less than 28 ~C, or a chemical co-blowing agent, or combinations thereof. The blowing agent blend comprises less than about 99 mol % isopentane.

L'invention concerne un mélange d'agents de gonflement servant à fabriquer des mousses polyoléfiniques comprenant de l'isopentane et au moins un agent de co-gonflement. Cet agent de co-gonflement est soit un agent de co-gonflement physique dont le point d'ébullition est inférieur à 28 ·C, soit un agent de co-gonflement chimique, soit des combinaisons de ces derniers. Ledit mélange d'agents de gonflement comprend moins d'environ 99 % en mole d'isopentane.

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