08163385 is referenced by 12 patents and cites 651 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, 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.

Title
Water-dispersible and multicomponent fibers from sulfopolyesters
Application Number
12/975450
Publication Number
8163385 (B2)
Application Date
December 22, 2010
Publication Date
April 24, 2012
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
C08G 63/68
D04H 1/56
D02G 3/00
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