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. 23, 1992
Filed:
May. 31, 1991
Applicant:
Inventors:
Howard B Yokelson, Aurora, IL (US);
Stefanos L Sakellarides, West Chicago, IL (US);
Raymond T Behrends, Lombard, IL (US);
Marifaith Hackett, Chicago, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 73 ; 528350 ; 2641 / ; 2641 / ;
Abstract
Fiber grade resin, fiber obtained therefrom, and fiber-containing articles wherein the resin comprises an amide-imide polymer having repeating units of the following general formula: ##STR1## said resin having an inherent viscosity of from about 0.3 to about 1.3 dl/g; an M.sub.n of at least about 5000 g/mole; a ratio of M.sub.w /M.sub.n in the range of from about 1.7 to about 3.3; and a ratio of M.sub.z /M.sub.w of not greater than about 2.3