Title:
POLYURETHANE DERIVED FROM BIOMASS RESOURCES, METHOD FOR PRODUCING SAME, AND POLYESTER POLYOL DERIVED FROM BIOMASS RESOURCES
Document Type and Number:
WIPO Patent Application WO/2011/125720
Kind Code:
A1
Abstract:
Disclosed is a novel polyester polyol for obtaining an environmentally friendly polyurethane that has excellent elongation degree and elastic modulus, while maintaining heat resistance, weather resistance and water resistance intrinsic to a polyurethane derived from a polyester polyol. The polyurethane reaction of this novel polyester polyol can be easily controlled. Also disclosed is a polyurethane which uses this novel polyester polyol. Specifically disclosed is a method for producing a polyurethane, which comprises at least a step wherein a polyester polyol is produced by causing a dicarboxylic acid and an aliphatic diol to react with each other and a step wherein the polyester polyol and a polyisocyanate compound are caused to react with each other. The method for producing a polyurethane is characterized in that: the dicarboxylic acid contains at least one component that is derived from biomass resources; the organic acid content in the dicarboxylic acid is more than 0 ppm but 1,000 ppm or less; and the pKa value of the organic acid at 25˚C is 3.7 or less.
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Inventors:
OHARA Teruhiko (())
大原 輝彦 (())
SUZUKI Naoki (())
鈴木 直樹 (())
NAKJIMA Yasuko (())
中嶋 泰子 (())
ITOU Hiroto (())
大原 輝彦 (())
SUZUKI Naoki (())
鈴木 直樹 (())
NAKJIMA Yasuko (())
中嶋 泰子 (())
ITOU Hiroto (())
Application Number:
JP2011/057984
Publication Date:
October 13, 2011
Filing Date:
March 30, 2011
Export Citation:
Assignee:
MITSUBISHI CHEMICAL CORPORATION (14-1, Shiba 4-chome Minato-k, Tokyo 14, 〒1080014, JP)
三菱化学株式会社 (〒14 東京都港区芝四丁目１４番１号 Tokyo, 〒1080014, JP)
OHARA Teruhiko (())
大原 輝彦 (())
SUZUKI Naoki (())
鈴木 直樹 (())
NAKJIMA Yasuko (())
中嶋 泰子 (())
三菱化学株式会社 (〒14 東京都港区芝四丁目１４番１号 Tokyo, 〒1080014, JP)
OHARA Teruhiko (())
大原 輝彦 (())
SUZUKI Naoki (())
鈴木 直樹 (())
NAKJIMA Yasuko (())
中嶋 泰子 (())
International Classes:
C08G18/42; A43B13/04; D06N3/14
Attorney, Agent or Firm:
HAMADA Yuriko et al. (Eikoh Patent Firm, Toranomon East Bldg. 10F 7-13, Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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Claims: