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:
Apr. 21, 1992
Filed:
Aug. 09, 1990
Applicant:
Inventors:
Joseph J Duffy, Newark, DE (US);
Jon D Hartzler, Midlothian, VA (US);
Robert A Marin, Hockessin, DE (US);
Richard D Mules, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264144 ; 1621573 ; 264212 ; 264299 ; 264233 ; 264 37 ; 26433119 ; 425224 ;
Abstract
A method for producing para-aramid pulp by using gravity-induced orientation of anisotropic para-aramid solutions. The solutions are those in which the para-aramid is still actively polymerizing. The process can be practiced on immobile inclined supports or on a moving inclined support in the form of a conveyer.