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:
Jul. 03, 2001
Filed:
Mar. 12, 1999
Applicant:
Inventors:
Assignee:
Sumitomo Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 5/914 ; H01L 2/329 ;
U.S. Cl.
CPC ...
C08G 5/914 ; H01L 2/329 ;
Abstract
An epoxy resin composition comprising (A) a bifunctional crystalline epoxy compound, (B) an amorphous trisphenolmethane type epoxy compound having three or more of epoxy groups in a molecule, and (C) an epoxy curing agent having phenolic hydroxyl groups. The resin composition has an excellent moldability (low viscosity and can be filled with filler with high density) and high softening point, and is used preferably as an encapsulating material for electronic device.