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. 19, 2002
Filed:
Apr. 03, 2000
Renato R. Rindone, Fair Oaks, CA (US);
W. Kenneth Musker, Davis, CA (US);
Dimension Technology Chemical Systems, Inc., Fair Oaks, CA (US);
Abstract
Reactions of ring systems, such as aziridines, oxetanes and oxiranes with carboxylic acids, anhydrides, imides, lactones and carbonate esters are catalyzed by C -C , substituted or unsubstituted, straight or branched-chained, alkyl, aryl, or aralkyl carboxylate Cr salts, preferably chromium +3 octoate. The catalysts also accelerate the reaction of hydroxy compounds with anhydrides, and of thiiranes with anhydrides. The catalysts selectively enhance the conversion of ring systems to form monomers, prepolymers, copolymers, functional end-group monomers, functional end-group prepolymers, and functional end-group polymers rather than forming homopolymers. By varying the catalyst concentration, molar ratios, and reaction temperatures, the reaction time required to form the desired product can be controlled.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile