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:
Jun. 01, 1982
Filed:
Apr. 09, 1981
Applicant:
Inventors:
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528297 ; 525444 ; 525445 ; 528304 ;
Abstract
Unsaturated polyester is produced by reacting dicarboxylic acid anhydride with alkylene oxide in the presence of a reaction product of dicarboxylic acid and dicyclopendadiene. The unsaturated polyester thus obtained gives a cured polyester resin having well balanced properties of mechanical strength and boiling-water resistance.