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:
Jun. 23, 1981
Filed:
Sep. 24, 1979
Applicant:
Inventor:
Robert T Lu, Wilmington, DE (US);
Assignee:
ICI Americas Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528170 ; 528171 ; 528174 ; 528205 ; 528208 ; 528228 ; 528321 ; 528322 ;
Abstract
Polyimide polymers of improved physical properties and thermal stability may be prepared by reacting an N,N'-bismaleimide with an activated methylene compound in a nonreactive organic solvent system. The polymers are useful in producing films, moldings, and laminates or other composites.
Quick Actions:
Lu, Robert. (1981). Polyimides of bismaleimides and activated methylene compounds (U.S. Patent No. 4275185). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4275185
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile