07687143 is referenced by 35 patents and cites 241 patents.

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, 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, and wherein said poly(ethylene) terephthalate has an inherent viscosity of less than 0.55 dL/g. 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.

Title
Water-dispersible and multicomponent fibers from sulfopolyesters
Application Number
11/648955
Publication Number
7687143 (B2)
Application Date
January 3, 2007
Publication Date
March 30, 2010
Inventor
Allen Lynn Crain
Kingsport
TN, US
Coralie McKenna Fleenor
Rogersville
TN, US
Kab Sik Seo
Kingsport
TN, US
Daniel William Klosiewicz
Kingsport
TN, US
Scott Ellery George
Kingsport
TN, US
Rakesh Kumar Gupta
Kingsport
TN, US
Agent
Bernard J Graves Jr
Polly C Owen
Assignee
Eastman Chemical Company
TN, US
IPC
D02G 3/00
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