Plastic foam material composed of a polyolefin based resin...

Details Plastic foam material composed of a polyolefin based resin... Plastic foam material composed of a polyolefin based resin...

C - Chemistry, Metallurgy

08

L

C08L 23/10 (2006.01) C08J 3/28 (2006.01) C08J 9/00 (2006.01) C08J 9/06 (2006.01) C08J 9/10 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2133385

A plastic foam material composed of a polyolefin based resin composition, consists essentially of specified amounts of polypropylene based resins and polyethylene based resins, included from about 20 to about 65 weight percent of a cross linked portion. The cross linked portion consists of from about 55 to about 95 weight percent of a cross linked polypropylene and from about to about 45 weight percent of cross linked polyethylene. The amount of cross- linkage can be determined by a xylene extraction technique. The plastic foam material may further include specified amounts of a cross-linking agent and specified amounts of an organic thermodecomposition foaming agent. The thermodecomposition foaming agent decomposes at sufficiently high temperatures to yield a plastic foam material, which exhibits superior adherence properties and fewer deformities of its surface exemplified by swelling, shrinkage and wrinkling of its surface. A method to produce the plastic foam material is also disclosed. 73

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