08178199 is referenced by 12 patents and cites 651 patents.

A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture. A process for producing a nonwoven article is also provided.

Title
Nonwovens produced from multicomponent fibers
Application Number
13/53615
Publication Number
8178199 (B2)
Application Date
March 22, 2011
Publication Date
May 15, 2012
Inventor
Daniel William Klosiewicz
Kingsport
TN, US
Melvin Glenn Mitchell
Penrose
NC, US
Rakesh Kumar Gupta
Kingsport
TN, US
Agent
Polly C Owen
Assignee
Eastman Chemical Company
TN, US
IPC
D04H 13/00
D04H 1/00
D02G 3/00
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