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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 10435510 B1

PDFFull Text
Date of Patent:
Oct. 08, 2019

Filed:

Jan. 29, 2014

Alkoxysilane-modified polyamic acid solution, laminate and flexible device each produced using same, and method for producing laminate

Applicant:

Kaneka Corporation, Osaka-shi, Osaka, JP;

Inventors:

Takahiro Akinaga, Otsu, JP;

Yuki Takiguchi, Otsu, JP;

Shinji Ozawa, Otsu, JP;

Assignee:

KANEKA CORPORATION, Osaka, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Tahseen Khan

Int. Cl.
CPC ...
C08G 69/48 (2006.01); B32B 27/28 (2006.01); B32B 38/10 (2006.01); B32B 27/06 (2006.01); B32B 27/34 (2006.01); B32B 27/08 (2006.01); C08G 73/10 (2006.01); B32B 7/06 (2019.01); C09D 179/08 (2006.01); B32B 17/06 (2006.01);
U.S. Cl.
CPC ...
C08G 69/48 (2013.01); B32B 7/06 (2013.01); B32B 17/064 (2013.01); B32B 27/06 (2013.01); B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/34 (2013.01); B32B 38/10 (2013.01); C08G 73/1017 (2013.01); C08G 73/1067 (2013.01); C08G 73/1078 (2013.01); C09D 179/08 (2013.01); B32B 2307/308 (2013.01); B32B 2307/558 (2013.01); B32B 2307/702 (2013.01); B32B 2307/748 (2013.01); B32B 2457/20 (2013.01); Y10T 156/10 (2015.01); Y10T 428/31721 (2015.04);
Abstract

The present invention provides (A) a polyamic acid solution which can be (i) used to form a film that does not peel off even in a case where the film has a large thickness, and (ii) stably stored at a room temperature, and (B) a laminate that can be suitably used for production of a flexible device. An alkoxysilane-modified polyamic acid solution of the present invention can be obtained by reacting (a) an alkoxysilane compound containing the amino group and (b) a polyamic acid solution, and has a molar ratio of 0.980 or more and 0.9995 or less, which molar ratio is obtained by dividing a total number of moles of an aromatic tetracarboxylic dianhydride by a total number of moles of an aromatic diamine.

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