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:
Jan. 30, 2001
Filed:
Dec. 31, 1997
Kalyan Ghosh, Richmond, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
There is provided a curing agent composition, a method for making a curing agent composition, two component curable epoxy resin compositions, methods of their manufacture, and the different cured products thereof. The curing agent comprises the reaction product of a a) phenolic acid substituted with at least one carboxyl group and at least one hydrocarbyl group having at least 1 carbon atom; b) a polyepoxide compound; c) a polyamine compound having at least two primary amine groups; and d) a monoglycidyl capping agent. The curing agents contain secondary amine groups, yet are reactive enough to cure epoxy resins without the necessity for external catalysts/accelerators, at a wide range of curing temperatures and are immediately compatible with a standard diglycidyl ether of Bisphenol-A epoxy resins.