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:
May. 24, 1994
Filed:
Nov. 20, 1991
Applicant:
Inventors:
Remy Humbrecht, Littau, CH;
Wolfgang Morgenstern, Kriens, CH;
Assignee:
Rhone-Poulenc Viscosuisse SA, Emmenbrucke, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D02G / ; D01H / ;
U.S. Cl.
CPC ...
57287 ; 57247 ; 57284 ; 57285 ;
Abstract
A friction-textured elastic yarn is prepared by twisting a single-component multifilament melt-spinnable polymer yarn having an initial modulus of 80 to 150 cN/tex and a melting point of at least 200.degree. C. at a speed of at least 200 m/min, the thus twisted yarn is heat-set at 160.degree. to 190.degree. C. to produce a fixated yarn, and the fixated yarn is friction-textured at a pretension of 0.5 to 3.0 cN/tex.