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:
Jul. 06, 1982
Filed:
Apr. 18, 1980
Applicant:
Inventor:
Robert Edelman, Staten Island, NY (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528222 ; 4284735 ; 4284744 ; 528229 ; 528336 ; 528342 ; 528351 ; 528353 ;
Abstract
The present invention provides an improvement in a process for preparing polyimide compositions from a mixture of monomers by the application of heat in two stages. The improvement comprises incorporating a cyclic peroxyketal catalyst, such as 3,6,6,9,9,-pentamethyl-3-(ethylacetate)-1,2,4,5-tetraoxycyclononane, into the monomer mixture prior to reaction.
Edelman, Robert. (1982). Preparation of polyimide compositions with cyclic peroxyketal catalyst (U.S. Patent No. 4338430). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4338430
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile