C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/08 (2006.01) B29C 37/00 (2006.01) B29C 43/18 (2006.01) B32B 5/18 (2006.01) C08J 9/00 (2006.01) C08J 9/06 (2006.01) C08K 5/09 (2006.01) C08K 5/092 (2006.01) C08L 33/14 (2006.01) C08L 37/00 (2006.01) B29C 41/18 (2006.01)
Patent
CA 2138453
Abstract The present invention provides a polyethylenic foaming composition comprising (a) 100 parts by weight of an ethylenic copolymer having glycidyl groups consisting of 20 to 99.9% by weight of ethylene unit, 0.1 to 30% by weight of the unit of a glycidyl ester of an unsaturated carboxyl- ic acid or an unsaturated glycidyl ether and 0 to 50% by weight of ethylenically unsaturated ester unit other than glycidyl ester, (b) 0.1 to 30 parts by weight of a carbox- ylic acid having 2 or more of carboxyl groups and a molecu- lar weight of 1500 or less, and (c) 0.1 to 20 parts by weight of a forming agent of a thermal decomposition type. The present invention also provides a polyethylenic foam molded from said foaming composition. In addition, the present invention provides a molded composite foam having a foam layer molded from a powder of said foaming composition and a non-foam layer molded from a composition powder containing a certain thermoplastic elastomer, as well as a multilayer molded article containing said molded composite foam. According to the inventive polyethylenic foaming composition, a foam having excellent lightness in weight, excellent cleanness, uniformly foamed cells, high expansion ratio and excellent impact resilience can be obtained.
Chikanari Kenzo
Funakoshi Satoru
Igarashi Toshio
Nakatsuji Yoshihiro
Sugimoto Hiroyuki
Fetherstonhaugh & Co.
Sumitomo Chemical Co. Ltd.
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