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, 1989
Filed:
Jan. 11, 1988
Applicant:
Inventors:
Wassily Poppe, Lombard, IL (US);
Yu-Tsai Chen, Glenn Ellyn, IL (US);
Edward E Paschke, Wheaton, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524606 ; 524607 ; 528338 ; 528339 ; 528340 ; 528347 ; 528349 ;
Abstract
Polyphthalamides which, when filled, have heat deflection temperatures of at least about 240.degree. C. are prepared from compounds of terephthalic acid and isophthalic acid in a ratio of about 70:30 to about 99:1 in combination with a diamine which comprises hexamethylene diamine.