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:
Nov. 09, 2010
Filed:
Nov. 10, 2006
Ashutosh Sharma, Wappingers Falls, NY (US);
Michael Tinkl, Eiken, CH;
Andrew Leggio, Franklin Square, NY (US);
Matthew Gande, Danbury, CT (US);
Armin Schneider, Freiburg, DE;
Ashutosh Sharma, Wappingers Falls, NY (US);
Michael Tinkl, Eiken, CH;
Andrew Leggio, Franklin Square, NY (US);
Matthew Gande, Danbury, CT (US);
Armin Schneider, Freiburg, DE;
Ciba Specialty Chemicals Corp., Tarrytown, NY (US);
Abstract
The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 1 to 24 carbon atoms, or is straight or branched chain alkenyl of 2 to 24 carbon atoms. The alkyl metal sulfonates are present from about 0.1% to about 1.9% by weight based on the weight of the polyester. A post treatment step such as an alkaline treatment step is not included. The melt extrusion mixtures do not include certain additives such as polyoxyalkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.