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:
May. 03, 1988
Filed:
Dec. 11, 1986
Richard M Kopchik, Southampton, PA (US);
Rohm and Haas Co., Philadelphia, PA (US);
Abstract
Thermoplastic, non-crosslinked polymer compositions having glutaric anhydride units of the formula: ##STR1## wherein R represents CH.sub.3 or H, process for imidizing said compositions, the resultant imide polymers which are free of methyl imide units, and process of devolatilizing an acrylic or methacrylic acid-containing polymer in an extruder to the corresponding anhydride, and then introducing a reactant selected from the group consisting of ammonia, ammonia generators, primary amine, and primary amine generators.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile