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. 17, 2012
Filed:
Dec. 22, 2010
Rakesh Kumar Gupta, Kingsport, TN (US);
Scott Ellery George, Kingsport, TN (US);
Daniel William Klosiewicz, Kingsport, TN (US);
Kab Sik Seo, Kingsport, TN (US);
Coralie Mckenna Fleenor, Rogersville, TN (US);
Allen Lynn Crain, Kingsport, TN (US);
Rakesh Kumar Gupta, Kingsport, TN (US);
Scott Ellery George, Kingsport, TN (US);
Daniel William Klosiewicz, Kingsport, TN (US);
Kab Sik Seo, Kingsport, TN (US);
Coralie McKenna Fleenor, Rogersville, TN (US);
Allen Lynn Crain, Kingsport, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.