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Method for producing nonwoven fabric composite having multi-directional stretch properties utilizing a cellular or foam layer

Patent 6479009 Issued on November 12, 2002. Estimated Expiration Date: Icon_subject March 28, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Nonwoven hydraulically entangled non-elastic web and method of formation thereof
Patent #: 4950531
Issued on: 08/21/1990
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Nonwoven material subjected to hydraulic jet treatment in spots
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Patent #: 5531729
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Nonwoven laminate with cross directional stretch
Patent #: 5540976
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Inventor

Application

No. 536139 filed on 03/28/2000

US Classes:

264/510, Producing multilayer work or article264/101, VACUUM TREATMENT OF WORK264/257, One component is a fibrous or textile sheet, web, or batt264/258, Joining a plurality of superposed fibrous or textile layers264/321, Sponge-like or foamed work264/511Including application of vacuum to hold, support, or sustain a preform against which material is molded

Examiners

Primary: Kuhns, Allan R.

International Class

B29C 067/20

Abstract

A non-woven fabric laminate having stretch properties constructed using hydroentanglement methods is disclosed. The laminate is comprised of at least two layers and utilizes a foam layer as a component in the preferred embodiment, replacing conventional use of fibrous materials. A superior elastomeric fabric utilizing an open or closed cell foam layer as one element of the composite structure and as the elastic member of the fabric results in superior fabric characteristics when compared to similar hydroentangled fabrics which are constructed from fibrous materials.

Other References

  • Daniel Harris, Elastic Nonwovens And Stretchable Composites, The New Nonwovens World--A Journal For Management, Fall 199
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