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:
Jul. 22, 2014
Filed:
Nov. 08, 2011
Neville Everton Drysdale, Newark, DE (US);
Elizabeth Forrester Mccord, Hockessin, DE (US);
Fredrik Nederberg, Greenville, DE (US);
Neville Everton Drysdale, Newark, DE (US);
Elizabeth Forrester McCord, Hockessin, DE (US);
Fredrik Nederberg, Greenville, DE (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Disclosed are polymer blends prepared by melt blending a fluorinated block copolyester with a non-fluorinated polyester wherein the fluorinated block copolyester comprises blocks of fluoroether modified aromatic polyester and blocks of unmodified polyester. Suitable block copolyesters have a blockiness index, B, in the range of 0.25 to 1.0. Shaped articles prepared from the blends exhibit oil and soil resistance with high fluorine efficiency.