Copolymers of ethylene and their use in the preparation of...

Details Copolymers of ethylene and their use in the preparation of... Copolymers of ethylene and their use in the preparation of...

C - Chemistry, Metallurgy

08

F

402/403, 402/413

C08F 210/02 (2006.01) C08J 9/02 (2006.01)

Patent

CA 1126896

ABSTRACT OF THE DISCLOSURE A foamable copolymer cosprising 40 to 98 percent by weight units of ethylene, 1 to 30 weight percent units of vinyl alcohol, 1 to 30 weight percent units of acrylic acid ester of a secondary or tertiary alcohol, and up to 2 percent by weight of vinyl acetate units is described together with a process for the manufacture thereof. The same is useful in the formation of a foamed mass which is relatively highly cross-lined. The copolymer can be foamed to form a foam by heating the same at 250 to 350°C for 5 to 60 minutes in the absence of oxygen.

331440

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