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. 15, 1978
Filed:
Jun. 24, 1976
Applicant:
Inventors:
Changkiu Keith Riew, Akron, OH (US);
Alan R Siebert, Maple Heights, OH (US);
Eugene H Rowe, Akron, OH (US);
Assignee:
The B. F. Goodrich Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260836 ; 2608 / ;
Abstract
Hard and strong epoxy resin products of high impact resistance are made from a di-epoxy compound, a smaller than equivalent proportion of a dicarboxylic acid which functions as a chain extender, and a bifunctional liquid elastomer, together with a curing agent active at elevated temperatures. Preferably the quantity of bifunctional liquid elastomer is about 5 to 10% of the amount of the di-epoxy compound.