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:
Aug. 28, 2018
Filed:
Oct. 02, 2013
Applicant:
Dic Corporation, Tokyo, JP;
Inventors:
Kazuo Arita, Ichihara, JP;
Tomohiro Shimono, Ichihara, JP;
Assignee:
DIC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 63/137 (2006.01); C08L 63/00 (2006.01); C08G 63/00 (2006.01); C09D 167/00 (2006.01); C09D 163/00 (2006.01); C09J 167/00 (2006.01); C09J 163/00 (2006.01); H05K 1/03 (2006.01); C08J 5/24 (2006.01); C08G 59/62 (2006.01);
U.S. Cl.
CPC ...
C08G 63/00 (2013.01); C08G 59/62 (2013.01); C08G 63/137 (2013.01); C08J 5/24 (2013.01); C08L 63/00 (2013.01); C09D 163/00 (2013.01); C09D 167/00 (2013.01); C09J 163/00 (2013.01); C09J 167/00 (2013.01); H05K 1/0353 (2013.01); C08J 2363/00 (2013.01); C08J 2367/00 (2013.01); C08J 2463/00 (2013.01); C08J 2467/00 (2013.01); Y10T 428/24917 (2015.01);
Abstract
An active ester resin where X represents a benzene ring or a naphthalene ring, each Rindependently represents a methyl group or a hydrogen atom, k is 0 or 1, n is 1 or 2, l is 1 or 2, and m is the average of a repeating unit and from 0.25 to 1.5. The active ester resin, as a curing agent, can be combined with an epoxy resin to form at least an epoxy resin composition, a cured product, a prepreg, a circuit board and a build-up film.