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. 14, 1994
Filed:
Mar. 08, 1993
Hans D Torre, Domat/Ems, CH;
Manfred Hoppe, Chur, CH;
Ems-Inventa AG, , CH;
Abstract
A thermoplastic polyamide comprising a copolyamide which is the reaction product of a hexamethylene diamine unsubstituted or substituted with at least one alkyl group, and a bis(4-aminocyclohexyl) alkane which is substituted adjacent to the amino groups, and a dicarboxylic acid. Molded bodies made therefrom have high rigidity and tensile strength over a broad temperature range, low water uptake, high dimensional stability, low permeability to oxygen, and high distortion temperatures. They are particularly suitable for injection molding and extrusion particularly when they are modified to improved impact strength, especially for the preparation of thin walled or large surface area shapes.