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:
Feb. 02, 2021
Filed:
Jan. 10, 2017
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/023 (2006.01); C08G 73/22 (2006.01); G03F 7/40 (2006.01); G03F 7/085 (2006.01); G03F 7/075 (2006.01); G03F 7/022 (2006.01);
U.S. Cl.
CPC ...
G03F 7/0233 (2013.01); C08G 73/22 (2013.01); G03F 7/0226 (2013.01); G03F 7/0751 (2013.01); G03F 7/085 (2013.01); G03F 7/40 (2013.01);
Abstract
Provided is a cured film having high chemical resistance, high elongation, and high adhesion to metal copper. A cured film formed by curing a photosensitive resin composition containing a polybenzoxazole precursor, in which a rate at which the polybenzoxazole precursor is cyclized into polybenzoxazole is not less than 10% and not more than 60%.