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.:
Date of Patent:
Sep. 01, 2020
Filed:
Apr. 26, 2017
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 5/00 (2006.01); C09D 183/06 (2006.01); C09K 3/18 (2006.01); C09D 183/04 (2006.01); C08G 77/18 (2006.01);
U.S. Cl.
CPC ...
C09D 5/00 (2013.01); C08G 77/18 (2013.01); C09D 183/04 (2013.01); C09D 183/06 (2013.01); C09K 3/18 (2013.01);
Abstract
The object of the present invention is to provide a polydialkylsiloxane backbone containing film excellent in durability against hot water. The film of the present invention comprises a polydialkylsiloxane backbone, wherein the ratio of carbon atoms to silicon atoms (C/Si) is not less than 0.93 and less than 1.38 in terms of moles. In the film, the magnitude of a contact angle change ratio drepresented by a specific formula can be not less than −10% provided that θis an initial contact angle of water, and θis a contact angle of water on the film immersed in ion-exchanged water of 70° C. for 24 hours.