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:
Feb. 20, 1990
Filed:
Oct. 26, 1988
Applicant:
Inventors:
Kazuhiro Arita, Takatsuki, JP;
Yasuo Sano, Minoo, JP;
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525504 ; 523445 ; 523448 ; 523457 ; 523458 ; 523468 ; 528 88 ; 528 89 ; 528 90 ; 528117 ; 528361 ; 528407 ;
Abstract
A cross-linked resin produced by heating a mixture of (a) a bis(2-oxazoline) compound, (b) an aromatic polyamine compound which has at least two amino groups in the molecule and (c) a polyepoxy compound which has at least two epoxy groups in the molecule at elevated temperatures, preferably in the presence of an oxazoline ring-opening polymerization catalyst. The resin shows a high mechanical strength and toughness, a very small water absorption and a very high resistance to heat.