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:
Dec. 13, 1994
Filed:
Jun. 18, 1993
Applicant:
Inventors:
Herbert Wellenhofer, Strassberg, DE;
Werner Bruckner, Kriftel, DE;
Andreas Fischer, Frankfurt am Main, DE;
Gerhard Leumer, Bobingen, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D01D / ; D01D / ; D02J / ;
U.S. Cl.
CPC ...
264 25 ; 2642107 ; 2642108 ; 26421112 ; 2642356 ;
Abstract
A process for producing fiber from polyarylene sulfide, by melt spinning a polyarylene sulfide into a gas, cooling the spun filaments with a blown gas, taking the filaments off at a high speed, storing the spun filaments, drawing the spun filaments in two stages and after treatment stage, and immediately thereafter heat setting the drawn filaments. Fibers produced by the invention have excellent mechanical properties including tensile strength and transverse strength, and the process is very efficient.