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. 03, 1991
Filed:
Mar. 30, 1990
Applicant:
Inventor:
Wayne S Stanko, Asheville, NC (US);
Assignee:
BASF Corporation, Williamsburg, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
528502 ; 528272 ; 5283082 ; 5283086 ; 528483 ; 528503 ; 2641761 ; 2642108 ; 264291 ; 264292 ; 26417713 ; 26417717 ;
Abstract
High shrinkage polyester fibers having good strength and uniform dyeability are disclosed, along with a method of producing the high shrinkage polyester fibers, by drawing a feeder yarn having a birefringence (n) of at least 0.0175 at a temperature below the glass transition temperature for the polyester and with carefully controlled draw ratios.