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:
Oct. 05, 1993
Filed:
Oct. 01, 1992
Applicant:
Inventors:
Wei-Yang Su, Austin, TX (US);
Harold G Waddill, Austin, TX (US);
Assignee:
Texaco Chemical Company, White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
525504 ; 525529 ; 525533 ; 528 94 ; 528116 ; 528354 ; 528355 ;
Abstract
An epoxy resin composition comprises the cured reaction product of an epoxy resin and a lactone-imidazole complex. For example, complexes of butyrolactone and caprolactone with 1-isopropyl-2-methyl imidazole were formed wherein the mole ratio of lactone:imidazole ranged from 1:1 to 2:1. The complexes are less reactive than the imidazole alone, giving them an extended pot life. The compositions are useful for making filament windings where an extended working time is required. Other applications include those in which it would be impractical to use the more reactive unmodified imidazole as the sole curing agent.