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. 21, 2004
Filed:
Dec. 04, 2002
Applicant:
Inventor:
Takayuki Matsushima, Kanuma, JP;
Assignee:
Sony Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B33B 9/04 ;
U.S. Cl.
CPC ...
B33B 9/04 ;
Abstract
There is provided an adhesive which hardens under the condition of low temperature within short time and has a high preserving property. The latent hardener of the present invention has hardener particles mainly comprising metal chelate and capsules covering the surface of the hardener particles where, in the surface part of the hardener particles, substituent of the resin component constituting the capsule is bonded to the metal chelate. Accordingly, mechanical strength of the capsule is high whereby the capsule is not broken in a step of kneading the latent hardener with an epoxy resin.