BICOMPONENT NONWOVEN WEBS CONTAINING SPLITTABLE THERMOPLASTIC FILAMENTS AND A THIRD COMPONENT

WIPO Patent Application WO2000029657

B1

An improved nonwoven web composite is formed by combining splittable bicomponent thermoplastic filaments with a component selected from other fibers and particles. The bicomponent filaments include distinct regions of first and second incompatible polymers extending the length of the filaments. After the bicomponent filaments are combined with the other fibers and/or particles, the bicomponent filaments are caused to split lengthwise along boundaries between the regions of different polymers, resulting in a web or matrix of finer filaments which entrap, ensnare and contain the other fibers and/or particles within the web or matrix. The nonwoven web composite is particularly useful for making absorbent articles, which require durability and optimum levels of absorbent fibers and/or particles.

HAYNES BRYAN DAVID
ARNOLD BILLY DEAN
DUELLMAN JUSTIN MAX
FRANK RYAN CLINTON
MCMANUS JEFFREY LAWRENCE
SMITH CHARLES ALLEN
STOKES TY JACKSON
SMITH KEVIN EDWARD
CLARK DARRYL FRANKLIN
MCDOWALL DEBRA JEAN
MARMON SAMUEL EDWARD
CREAGAN CHRISTOPHER COSGROVE
NING XIN
MYERS DAVIS LEWIS

PCT/US1999/025899

August 24, 2000

November 03, 1999

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KIMBERLY CLARK CO (US)

D01F8/06; D01F8/12; D01F8/14; D04H1/54; (IPC1-7): D04H5/02; D01F8/06; D01F8/12; D01F8/14; D04H1/42; D04H3/10; D04H1/46

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