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:
Aug. 14, 1990
Filed:
Dec. 02, 1988
Applicant:
Inventors:
Walter H Delphin, Germantown, TN (US);
Clyde S Hutchins, Arlington, TN (US);
Robert J Buchacek, Hockessin, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
264216 ; 524 96 ; 524282 ; 524505 ;
Abstract
AB dispersants made by group transfer polymerization aid in controlling color shift during casting of MMA polymer sheet containing color pigments and additives, particularly chain transfer agent and sheet release agent.
Delphin, Walter. (1990). Process for manufacture of polymethyl methacrylate sheet with controlled (U.S. Patent No. 4948546). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4948546
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile