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. 09, 1999
Filed:
Sep. 29, 1997
Applicant:
Inventor:
Nicholas Castellucci, Lomita, CA (US);
Assignee:
Northrop Grumman Corporation, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
528217 ; 528480 ; 528486 ; 528491 ;
Abstract
A novel process for producing novel curable, liquid, hydroxyl-terminated epoxy polyether polymers by the direct polymerization of vinyl epoxy ether monomers in the presence of a strong alkali, to form a hydroxyl-terminated vinyl polyether polymer, followed by the epoxidation of the vinyl groups to form a novel curable, liquid hydroxyl-terminated epoxy polyether polymer which is stable against unintended polymerization in view of the epoxidation of the vinyl groups and is rapidly curable with the addition of conventional multifunctional curing agents.