Title:
PROCESS FOR PRODUCTION OF POLYURETHANE FOAM
Document Type and Number:
WIPO Patent Application WO/2008/012908
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a process for producing a polyurethane foam having a higher durability than a conventional one produced by mechanical froth method. [MEANS FOR SOLVING PROBLEMS] A process for producing a polyurethane foam comprising the steps of mixing (A) an organic polyisocyanate, (B) a polyol, (C) a catalyst and (D) a foam controlling agent in a dispersed state to give a polyurethane foam forming composition, mixing an inert gas with the composition in a dispersed state by a mechanical agitation, foaming the resulting mixture and then curing the foamed product, the polyurethane foam having a poly(oxytetramethylene)polyol content of 50 to 80% by mass, and the foam controlling agent (D) being a dimethylpolysiloxane-polyether block copolymer which has a silicon content of 5 to 20% by mass, has a polyether moiety having an alkyl group at its terminus, and has a number average molecular weight of 1,000 to 2,000.
Inventors:
YAMADA, Suguru (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
山田 卓 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社総合技術研究所内 Kanagawa, 2450052, JP)
OHMORI, Naoyuki (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
大森 直之 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 Kanagawa, 2450052, JP)
山田 卓 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社総合技術研究所内 Kanagawa, 2450052, JP)
OHMORI, Naoyuki (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
大森 直之 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 Kanagawa, 2450052, JP)
Application Number:
JP2006/314948
Publication Date:
January 31, 2008
Filing Date:
July 28, 2006
Export Citation:
Assignee:
Nippon Polyurethane Industry Co., LTD (1-23, Shiba 4-Chome Minato-ku Tokyo, 14, 1080014, JP)
日本ポリウレタン工業株式会社 (〒14 東京都港区芝四丁目１番２３号 Tokyo, 1080014, JP)
YAMADA, Suguru (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
山田 卓 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社総合技術研究所内 Kanagawa, 2450052, JP)
OHMORI, Naoyuki (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
日本ポリウレタン工業株式会社 (〒14 東京都港区芝四丁目１番２３号 Tokyo, 1080014, JP)
YAMADA, Suguru (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
山田 卓 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社総合技術研究所内 Kanagawa, 2450052, JP)
OHMORI, Naoyuki (LTD. Central Research Laboratory 440, Akiba-cho, Totsuka-k, Yokohama-shi Kanagawa 52, 2450052, JP)
International Classes:
C08G18/48
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