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:
Sep. 17, 1991
Filed:
Mar. 10, 1989
Applicant:
Inventors:
Thomas I Bair, Wilmington, DE (US);
Henry Kobsa, Greenville, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04H / ; D02G / ; C08G / ;
U.S. Cl.
CPC ...
428 97 ; 428364 ; 528295 ; 528301 ; 5283081 ;
Abstract
Copolyester fibers susceptible of enhanced dyeability on continuous dye equipment and which have improved recovery from compression are prepared from a poly(alkylene terephthalate) such as poly(ethylene terephthalate) containing 9 to 17 weight percent of a poly(tetramethylene ether) glycol having a molecular weight of 500 to 1500.