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:
Sep. 05, 1978
Filed:
Sep. 21, 1976
Applicant:
Inventors:
Gerhard Bier, Troisdorf, DE;
Franz Blaschke, Witten, Ruhr, DE;
Helmut AUS DER Funten, Niederkassel-Mondorf, DE;
Gerhard Schade, Witten-Bommern, DE;
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528338 ; 260 / ; 260 / ; 528339 ; 528340 ;
Abstract
A polyamide composition, useful in the preparation of transparent sheets, having improved resistivity toward solvents containing moieties of terephthalic acid and 2-methylpentamethylenediamine, said polyamide characterized by a content of moieties of 2-ethyltetramethyldiamine and/or of isophthalic acid in a concentration totalling 15 to 30 mole percent, with respect to the sum of all diamine moieties or all dicarboxylic acid moieties, as the case may be.