POLYMER COMPOSITION FOR POWDER MOLDING, POWDER THEREOF, FOAMED OBJECT, AND PROCESS FOR PRODUCING FOAMED OBJECT

WIPO Patent Application WO/1999/062992

A1

A polymer composition for powder molding which comprises (A) 100 parts by weight of a peroxide-cross-linkable olefin copolymer having a melt flow rate as measured in accordance with JIS K-7210 at 190 °C under a 2.16-kg load of 1 g/10 min or higher, (B) 0.1 to 10 parts by weight of a peroxide having a 10-hour half-life temperature of 100 °C or higher, (C) 0.1 to 7 parts by weight of a cross-linking aid, (D) 0.1 to 20 parts by weight of a thermally decomposable foaming agent, and (E) 0.1 to 10 parts by weight of a foaming aid; a powder of the polymer composition; a foamed object; a process for producing the foamed object; and a molded object comprising the foamed object. The composition in an uncross-linked state has excellent storage stability and can give a foam which has a high expansion ratio and an excellent surface skin satisfactory in hiding.

IKETANI KOHICHI (JP)
NAKATSUJI YOSHIHIRO (JP)
OHTANI KOHSUKE (JP)

PCT/JP1999/002901

December 09, 1999

June 01, 1999

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SUMITOMO CHEMICAL CO (JP)
IKETANI KOHICHI (JP)
NAKATSUJI YOSHIHIRO (JP)
OHTANI KOHSUKE (JP)

B29C41/18; B32B9/00; B32B25/08; C08J9/06; C08L23/00; C08L23/02; C08L23/04; C08L23/08; B29K23/00; B29K105/04; B29L31/58; (IPC1-7): C08J9/06; B32B5/18; B32B27/32; C08L23/26

JPH11147967A	1999-06-02
JPH1160772A	1999-03-05
JPH07258446A	1995-10-09
JPS62215637A	1987-09-22
JPS61185533A	1986-08-19

Jinno, Naoyoshi (Limited Intellectual Property Dept. 5-33 Kitahama 4-chome Chuo-ku, Osaka-shi Osaka, JP)

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