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:
Oct. 04, 2022
Filed:
Mar. 18, 2019
Applicant:
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan, CN;
Inventor:
Linbo Ke, Wuhan, CN;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08J 7/06 (2006.01); B29C 41/00 (2006.01); B29C 41/22 (2006.01); B29C 41/46 (2006.01); C08K 3/36 (2006.01); B29K 79/00 (2006.01); B29L 7/00 (2006.01); B29L 9/00 (2006.01);
U.S. Cl.
CPC ...
C08J 7/06 (2013.01); B29C 41/003 (2013.01); B29C 41/22 (2013.01); B29C 41/46 (2013.01); C08J 5/18 (2013.01); C08K 3/36 (2013.01); B29K 2079/08 (2013.01); B29L 2007/008 (2013.01); B29L 2009/00 (2013.01); C08J 2379/08 (2013.01); C08K 2201/002 (2013.01);
Abstract
The present invention provides a composite film and a preparation method thereof. The composite film includes polyimide and a dense silica layer formed on a surface of the polyimide.