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. 07, 1978
Filed:
Mar. 08, 1976
Applicant:
Inventor:
Besir K Onder, North Haven, CT (US);
Assignee:
The Upjohn Company, Kalamazoo, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 65 ; 428474 ;
Abstract
Novel copolyamides having the recurring unit ##STR1## are disclosed wherein R, in 60 percent to 85 percent of the recurring units, is --CH.sub.2 --.sub.x wherein x is an integer from 7 to 12 inclusive, and, in 15 percent to 40 percent of the recurring units, R is m-phenylene; and Ar is an arylene radical. The copolyamides are characterized by ease of melt processing such as in molding, extruding, and injection molding, while at the same time possessing good high temperature stability, and being further characterized by unexpectedly high impact and flexural strengths.