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. 11, 2012
Filed:
Jun. 10, 2011
Ichiro Ogura, Ichihara, JP;
Yoshiyuki Takahashi, Ichihara, JP;
Kazuo Arita, Ichihara, JP;
Kunihiro Morinaga, Ichihara, JP;
Yutaka Satou, Sakura, JP;
Ichiro Ogura, Ichihara, JP;
Yoshiyuki Takahashi, Ichihara, JP;
Kazuo Arita, Ichihara, JP;
Kunihiro Morinaga, Ichihara, JP;
Yutaka Satou, Sakura, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
An epoxy resin composition including an epoxy resin and a curing agent as essential components, in which the curing agent comprises a phenol resin which has each structural moiety of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P), an alkoxy group-containing aromatic hydrocarbon group (B) and a divalent aralkyl group (X), and also has, in a molecular structure, a structure in which the phenolic hydroxyl group-containing aromatic hydrocarbon group (P) and the alkoxy group-containing aromatic hydrocarbon group (B) are bonded with the other phenolic hydroxyl group-containing aromatic hydrocarbon group (P) or alkoxy group-containing aromatic hydrocarbon group (B) via the divalent aralkyl group (X).