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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 9163161 B1

PDFFull Text
Date of Patent:
Oct. 20, 2015

Filed:

May. 24, 2013

Polyurethane aqueous dispersion, formed film obtained from same, and glove

Applicants:

Toyo Polymer Co., Ltd., Osaka-shi, Osaka, JP;

Showa Glove Co., Himeji-shi, Hyogo, JP;

Inventors:

Michiro Goto, Ibaraki, JP;

Kenji Shimizu, Ibaraki, JP;

Yoshio Seki, Ibaraki, JP;

Tomoya Genmoto, Ibaraki, JP;

Chie Ipponsugi, Ibaraki, JP;

Naohito Higuchi, Himeji, JP;

Assignee:

TOYO POLYMER CO., LTD., Osaka, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Patrick Niland

Int. Cl.
CPC ...
A41D 19/00 (2006.01); B29C 47/00 (2006.01); B29D 22/00 (2006.01); B29D 23/00 (2006.01); B32B 1/06 (2006.01); C08G 18/00 (2006.01); C08G 18/08 (2006.01); C08G 18/10 (2006.01); C08G 18/28 (2006.01); C08G 18/30 (2006.01); C08G 18/32 (2006.01); C08G 18/60 (2006.01); C08G 18/70 (2006.01); C08G 18/71 (2006.01); C08L 75/00 (2006.01); C09D 175/08 (2006.01); A61B 19/04 (2006.01); C08G 18/34 (2006.01); C08J 5/02 (2006.01); C08G 18/48 (2006.01); C08G 18/72 (2006.01); C08J 5/18 (2006.01); C08G 18/12 (2006.01); C08G 18/40 (2006.01); C08G 18/44 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01);
U.S. Cl.
CPC ...
C09D 175/08 (2013.01); A41D 19/0055 (2013.01); A61B 19/04 (2013.01); C08G 18/0823 (2013.01); C08G 18/0866 (2013.01); C08G 18/12 (2013.01); C08G 18/3206 (2013.01); C08G 18/3234 (2013.01); C08G 18/348 (2013.01); C08G 18/4018 (2013.01); C08G 18/44 (2013.01); C08G 18/4837 (2013.01); C08G 18/4854 (2013.01); C08G 18/721 (2013.01); C08G 18/755 (2013.01); C08G 18/758 (2013.01); C08G 18/7671 (2013.01); C08J 5/02 (2013.01); C08J 5/18 (2013.01); C08J 2375/08 (2013.01);
Abstract

Provided is a polyurethane aqueous dispersion characterized in having practical utility in terms of processing suitability when a formed film is produced by salt coagulation method, and characterized in that a formed film obtained from the same has practical utility in terms of resistance against ethanol water. A polyurethane aqueous dispersion for a formed film, the formed film being obtained by using the polyurethane aqueous dispersion and a coagulant liquid in combination, is obtained by: neutralizing an isocyanate group-terminated prepolymer obtained by reaction of a polyisocyanate (A) composed of diphenylmethane diisocyanate and alicyclic diisocyanate, a random copolymer (B) of ethylene oxide and tetrahydrofuran, a polyol (C) having a number average molecular weight of 1000 to 5000, a polyhydric alcohol-based chain extender (D) having a number average molecular weight of 400 or less, and a diol compound (E) having a carboxyl group; and dispersing the obtained neutralized substance in water, and thereafter causing a chain extension reaction using an amine-based chain extender (F).

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