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:
Mar. 16, 1982
Filed:
Apr. 10, 1980
Applicant:
Inventor:
John A Lopez, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 89 ; 528104 ; 528409 ; 525524 ;
Abstract
A precatalyzed, elevated temperature storage-stable epoxy composition is described wherein the catalyst composition is a mixture of a phosphonium halide and an alkali metal salt of a hydroxide or halide. The preparation of higher molecular weight fusion products wherein the precatalyzed epoxy composition is reacted with a polyhydric phenol is also described.