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. 09, 1996
Filed:
Jan. 24, 1995
Applicant:
Inventors:
Hans R Frankfort, Kinston, NC (US);
Benjamin H Knox, Wilmington, DE (US);
Girish A Pai, Newark, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ; D01F / ; D01F / ;
U.S. Cl.
CPC ...
26417215 ; 26417217 ; 26417218 ; 2642108 ; 26421112 ; 26421115 ; 26421117 ; 264234 ; 264235 ; 264237 ; 2643 / ;
Abstract
Polyester filaments of high shrinkage and high shrinkage tension may be prepared by heat treatment of undrawn crystalline filaments of low shrinkage and shrinkage tension, and may be used for making polyester yarns of mixed shrinkage and bulky polyester yarns and fabrics therefrom.