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:
Dec. 11, 1990
Filed:
Mar. 21, 1990
Applicant:
Inventors:
Hugh C Gardner, Somerville, NJ (US);
Richard H Newman-Evans, Somerville, NJ (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525119 ; 525122 ;
Abstract
Preformed carboxylated rubber particles are effective for toughening fiber reinforced composite structures based on thermoset resins such as epoxy resin formulations. The composites are effectively toughened by adding the carboxylated rubber particles to the matrix resin prior to curing the composite.
Gardner, Hugh. (1990). Carboxylated rubber particles as tougheners for fiber reinforced (U.S. Patent No. 4977215). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4977215
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile