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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 9834884 B1

PDFFull Text
Date of Patent:
Dec. 05, 2017

Filed:

Sep. 19, 2013

Aqueous dispersion of polyurethane resin, flame-retardant polyester fiber using the same, and method for producing said fiber

Applicant:

Adeka Corporation, Tokyo, JP;

Inventors:

Nobuyuki Shimamura, Saitama, JP;

Takashi Usui, Saitama, JP;

Assignee:

ADEKA CORPORATION, Tokyo, JP;

Attorney:

Millen, White, Zelano, Branigan, P.C.

Primary Examiner:

Christopher M Rodd

Int. Cl.
CPC ...
D06M 15/572 (2006.01); C08K 5/523 (2006.01); D06M 13/292 (2006.01); D06M 15/564 (2006.01); C08G 18/66 (2006.01); C08G 18/75 (2006.01); C08G 18/08 (2006.01); C08G 18/12 (2006.01); C08G 18/40 (2006.01); C08G 18/44 (2006.01); C08G 18/00 (2006.01); C08G 18/48 (2006.01); C08G 18/10 (2006.01); C08G 18/42 (2006.01); D06M 101/32 (2006.01);
U.S. Cl.
CPC ...
D06M 15/572 (2013.01); C08G 18/00 (2013.01); C08G 18/0823 (2013.01); C08G 18/10 (2013.01); C08G 18/12 (2013.01); C08G 18/4018 (2013.01); C08G 18/4213 (2013.01); C08G 18/4216 (2013.01); C08G 18/44 (2013.01); C08G 18/4854 (2013.01); C08G 18/6607 (2013.01); C08G 18/6659 (2013.01); C08G 18/755 (2013.01); C08G 18/758 (2013.01); C08K 5/523 (2013.01); D06M 13/292 (2013.01); D06M 15/564 (2013.01); D06M 2101/32 (2013.01); D06M 2200/30 (2013.01);
Abstract

An aqueous dispersion of polyurethane resin is obtained by a chain elongation reaction in water wherein (C) at least one chain extender selected from a group consisting of water-soluble polyamines, hydrazine and derivatives thereof is added to a dispersion liquid obtained by emulsifying and dispersing a mixture in water. The mixture comprises: (B) at least one compound selected from the phosphorous compounds represented by the following formula (1) and (A) an urethane prepolymer and/or a neutralized urethane prepolymer material which has an isocyanate group at the terminal. The urethane prepolymer of component (A) is an urethane prepolymer obtained from (a1) an organic polyisocyanate and (a2) a polymeric polyol. The neutralized urethane prepolymer material of component (A) is a neutralized material obtained by neutralizing an urethane prepolymer which is obtained by further using (a3) a compound having an anionic hydrophilic group and at least two active hydrogens in a molecule together with the components (a1) and (a2).

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