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:
Feb. 10, 1976
Filed:
Dec. 06, 1974
Rolf Schmid, Gelterkinden, CH;
Friedrich Lohse, Oberwil, CH;
Willy Fatzer, Bottmingen, CH;
Hans Batzer, Arlesheim, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Curable epoxide resin mixtures based on adducts, containing epoxide groups, which are obtained by reaction of certain long-chain aliphatic polyesters with an excess of diepoxide compounds, and linear or slightly branched polyesters, containing carbocyclic or heterocyclic rings and possessing 3 or 4 terminal carboxyl groups, and having an average molecular weight of 600 - 6,000, 0.7 - 1.2 equivalents of carboxyl groups being present in the curable mixture per 1 equivalent of epoxide groups. Curing these epoxide resin mixtures gives flexible moulded materials which are distinguished by high tear propagation resistance.