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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9963537 B1

PDFFull Text
Date of Patent:
May. 08, 2018

Filed:

Jun. 06, 2016

Biomass-resource-derived polyurethane, method for producing same, and biomass-resource-derived polyester polyol

Applicant:

Mitsubishi Chemical Corporation, Chiyoda-ku, JP;

Inventors:

Teruhiko Ohara, Tokyo, JP;

Naoki Suzuki, Niigata, JP;

Yasuko Nakajima, Kanagawa, JP;

Hiroto Itou, Mie, JP;

Takayuki Aoshima, Kanagawa, JP;

Naoki Sugai, Kanagawa, JP;

Takanao Matsumoto, Kanagawa, JP;

Assignee:

MITSUBISHI CHEMICAL CORPORATION, Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Rabon Sergent

Int. Cl.
CPC ...
C08G 18/42 (2006.01); A43B 13/04 (2006.01); A43B 1/14 (2006.01); A43B 1/00 (2006.01); C08G 18/08 (2006.01); C09D 175/06 (2006.01); C09J 175/06 (2006.01); C07C 69/34 (2006.01); C07C 69/40 (2006.01); C07C 69/66 (2006.01); C07C 69/675 (2006.01); C07C 69/70 (2006.01); C07C 69/704 (2006.01); C08G 63/06 (2006.01); C08G 63/20 (2006.01); C08G 63/60 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); C07C 59/245 (2006.01); C08G 63/16 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08G 18/4238 (2013.01); A43B 1/00 (2013.01); A43B 1/14 (2013.01); A43B 13/04 (2013.01); C07C 59/245 (2013.01); C07C 69/34 (2013.01); C07C 69/40 (2013.01); C07C 69/66 (2013.01); C07C 69/675 (2013.01); C07C 69/70 (2013.01); C07C 69/704 (2013.01); C08G 18/14 (2013.01); C08G 18/4241 (2013.01); C08G 18/4286 (2013.01); C08G 18/664 (2013.01); C08G 18/7657 (2013.01); C08G 18/7671 (2013.01); C08G 63/06 (2013.01); C08G 63/16 (2013.01); C08G 63/20 (2013.01); C08G 63/60 (2013.01); C09D 175/06 (2013.01); C09J 175/06 (2013.01); C08G 2101/0008 (2013.01); C08G 2410/00 (2013.01);
Abstract

The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

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