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:
Jan. 13, 1976
Filed:
Apr. 13, 1972
Applicant:
Inventors:
Johannes Schneider, Troisdorf, DT;
Wolfgang Pungs, Troisdorf, DT;
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08Q / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 2608 / ; 264329 ;
Abstract
A polyamide sheet having electrical creep resistance of quality class KA 3b according to Deutsche Industrie Norm 53,480, especially one prepared by a screw injection molding process utilizing a kneading action under a pressure of between 5 and 80 kiloponds per square centimeter at a temperature of 240.degree. to 320.degree.C utilizing a polyamide of an alkyl substituted aliphatic diamine and a lower alkyl ester of terephthalic acid.