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. 12, 1997
Filed:
Jan. 31, 1995
Applicant:
Inventors:
Toru Koyama, Hitachi, JP;
Chikashi Kanno, Hitachi, JP;
Hirokazu Takasaki, Hitachi, JP;
Koo Honjoo, Ibaraki-ken, JP;
Shinichi Toyoda, Katsuta, JP;
Hiroshi Suzuki, Hitachi, JP;
Ikushi Kano, Ibaraki-ken, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 666 ; 428413 ; 428703 ; 525533 ; 528104 ;
Abstract
A thermosetting resin composition comprising: [A] a polyfunctional epoxy resin produced from a reaction between a mixture of at least two polyhydric phenols selected from (a) bis(4-hydroxyphenyl)methane, (b) bis(4-hydroxyphenyl)ethane, (c) bis(4-hydroxyphenyl)-propane, (d) tris(4-hydroxyphenyl)alkane and (e) tetra(4-hydroxyphenyl)alkane, and epichlorohydrin, and [B] an acid anhydride curing agent; and a coil and a panel formed of said composition.