Elastomeric nonwovens

Details Elastomeric nonwovens Elastomeric nonwovens

2011-03-08

2011-03-08

Tarazano, D. Lawrence (Department: 1786)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Nonwoven fabric has an elastic quality

C442S329000, C442S381000

Reexamination Certificate

active

07902093

ABSTRACT:
A nonwoven fabric and disposable articles comprising the same are provided. The nonwoven fabric can include one or more facing layers thermally bonded to one or more inner layers. The facing layers are inelastic or partially elastic nonwoven webs comprising one or more propylene-based polymers. The facing layer has a permanent set above 30%. The inner layers are elastic nonwoven webs comprising one or more propylene-based polymers and one or more slip agents. The inner layer has a permanent set below 28%, and the one or more propylene-based polymers have (i) 60 wt % or more units derived from propylene, (ii) isotactically arranged propylene derived sequences, and (iii) a heat of fusion less than 45 J/g.

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Inventors: Dharmarajan et al., entitled “Elastomeric Laminates for Consumer Products”, filed Jan. 26, 2007.
Abstract—JP 09078431, Mar. 25, 2007.
M. G. Kamath, et al.,Finishing of Nonwoven Bonded Fabrics, The University of Tennessee Knoxville, Materials Science & Engineering 554, Nonwovens Science and Technology II, Spring 2004, pp. 1-11.

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