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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 10647872 B1

PDFFull Text
Date of Patent:
May. 12, 2020

Filed:

Jul. 28, 2016

Moisture-permeable film

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Kunihiko Komatsuzaki, Osaka, JP;

Tetsuo Takada, Chiba, JP;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Michael M Dollinger

Int. Cl.
CPC ...
C09D 133/26 (2006.01); C08F 220/54 (2006.01); C08L 33/24 (2006.01); C08L 75/04 (2006.01); C08L 75/06 (2006.01); C08L 33/26 (2006.01); C09D 175/04 (2006.01); C09D 175/08 (2006.01); C08L 75/08 (2006.01); C09D 175/06 (2006.01); C08F 220/28 (2006.01); C09D 133/14 (2006.01);
U.S. Cl.
CPC ...
C09D 133/26 (2013.01); C08F 220/28 (2013.01); C08F 220/54 (2013.01); C08L 33/24 (2013.01); C08L 33/26 (2013.01); C08L 75/04 (2013.01); C08L 75/06 (2013.01); C08L 75/08 (2013.01); C09D 133/14 (2013.01); C09D 175/04 (2013.01); C09D 175/06 (2013.01); C09D 175/08 (2013.01); C08F 220/286 (2020.02);
Abstract

A problem to be solved by the present invention is to provide a moisture-permeable film which is excellent in moisture permeability and water swelling resistance. The present invention relates to a moisture-permeable film formed by a composition containing polyurethane (A) and a hydrophilic acrylic polymer (B). The moisture-permeable film of the present invention is excellent in the moisture permeability and the water swelling resistance. Accordingly, the moisture-permeable film of the present invention can be preferably used as the moisture-permeable film used in producing moisture-permeable waterproof cloth for clothing, medical, and hygiene; and synthetic leather. The hydrophilic acrylic polymer (B) is preferably a polymer of a hydrophilic acrylic monomer (b1) containing an acrylic monomer (b1-1) having an amide group and an acrylic monomer (b1-2) having an oxyethylene group.

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