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. 19, 1985
Filed:
Apr. 22, 1983
Applicant:
Inventors:
Stanley R Cochran, Midlothian, VA (US);
Francis W Strahorn, Hockessin, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425445 ; 264346 ;
Abstract
Aromatic polyamide filaments are treated at high speed under tension by passage over an array of closely spaced, heated rolls at 175.degree.-300.degree. C., the filaments stretched 0-1.6% and passed over a second array of additional closely spaced, heated rolls at 175.degree.-300.degree. C., cooled and wound up.