Expandable styrene polymers containing carbon dioxide as...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

IPC codes

C08L 25/08 (2006.01) C08J 9/00 (2006.01) C08J 9/08 (2006.01) C08J 9/18 (2006.01) C08J 9/228 (2006.01) C08K 5/00 (2006.01) C08K 5/17 (2006.01) C08L 25/04 (2006.01) C08L 71/02 (2006.01)

Type

Patent

Patent number

CA 2081934

Description

O.Z. 0050/42810 Abstract of the Disclosure: The invention relates to expandable styrene polymers containing a) a styrene polymer, b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), and c) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight, where the blowing agent or blowing agent mixture comp- rises c1) from 10 to 100% by weight of carbon dioxide and c2) from 0 to 90% by weight of at least one further blowing agent. The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impreg- nating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

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