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

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United States of America Patent

PATENT NO 9163161
APP PUB NO 20140235786A1
SERIAL NO

14347828

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
TOYO POLYMER CO LTDOSAKA 532-0003

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Genmoto, Tomoya Ibaraki, JP 1 2
Goto, Michiro Ibaraki, JP 2 11
Higuchi, Naohito Himeji, JP 2 4
Ipponsugi, Chie Ibaraki, JP 1 2
Seki, Yoshio Ibaraki, JP 15 115
Shimizu, Kenji Ibaraki, JP 183 1839

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