US5227227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-woven fabric with a thermally activated adhesive surface, resulting product and applications thereof
Assignee: Johnson and Johnson Inc
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Filing: 1990-07-09
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Granted: 1993-07-13
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Expires: 2010-07-09
Abstract
Abstract A three-dimensional non-woven fabric with a thermally activated adhesive surface well suited for use as a facing fabric for covering a fibrous mat. The fabric comprises two adjoining fiber layers, namely an adhesive layer including bond-forming fibers fusible at a predetermined temperature and a facing layer of fibers having a considerably higher melting temperature than the bond-forming fibers. The fibers of both layers are mechanically engaged one with another and are arranged flat-wise in bundles interconnected at junctures by protuberant fiber packings disposed in a staggered relationship throughout the fabric. Bond-forming fibers are concentrated in the apex portions of the fiber packings to form the thermally activated adhesive surface. The invention also extends to a process for manufacturing the three-dimensional non-woven fabric, based on the so-called "rosebud" technique for producing foraminous webs. The invention further comprehends a molded fibrous mat article with a non-woven fabric facing layer, and a method for producing the article.
Inventors
- 👤 Roger Boulanger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
D; D04; D04H; D04H18/00; D04H18/04; B; B29; B29C; B29C51/00; B29C51/002; B29C51/004; B29C51/14; B29C51/145; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/083; B29C70/10; B29C70/16; B29C70/20; D04H13/00; D04H3/00; D04H3/005; D04H3/009; D04H3/011; D04H3/08; D04H3/10; D04H3/11; D04H3/12; D04H3/14; D04H3/153; D04H5/00; D04H5/12; B29C43/00; B29C43/02; B29C43/20; B29C43/203; B29C51/08; B29C51/082; B29K; B29K2105/00; B29K2105/06; B60; B60R; B60R13/00; B60R13/08; B60R13/0815; B60R13/083; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/28; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/668; Y10T442/669; Y10T442/69; Y10T442/697
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
A three-dimensional non-woven fabric having a thermally activated adhesive surface, said non-woven fabric comprising a first fiber layer including bond-forming fibers fusible at a predetermined temperature and a second fiber layer including fibers of a material in a solid phase at said predetermined temperature, said fibers being in mechanical engagement one with another and arranged flatwise in bundles interconnected at junctures by protuberant fiber packings disposed in a staggered pattern throughout said fabric, said bond-forming fibers and said fibers of a material in a solid phase being concentrated in apex and base portions of said protuberant fiber packings respectively.
Claim 2
Dependent Claim
99 words
A three-dimensional non-woven fabric having a thermally activated adhesive surface, said non-woven fabric comprising a first fiber layer including bond-forming fibers fusible at a predetermined temperature and a second fiber layer including fibers of a material in a solid phase at said predetermined temperature, said fibers being in mechanical engagement one with another and arranged flatwise in bundles interconnected at junctures by protuberant fiber packings disposed in a staggered pattern throughout said fabric, said bond-forming fibers and said fibers of a material in a solid phase being concentrated in apex and base portions of said protuberant fiber packings respectively.
Claim 3
Dependent Claim
32 words
A three-dimensional non-woven fabric as defined in claim 1, wherein said staggered pattern constitutes means to increase stretchability of said non-woven fabric in various directions in a plane of said non-woven fabric.
Claim 4
Dependent Claim
27 words
A three-dimensional non-woven fabric as defined in claim 1, wherein said bundles and said fiber packings define a pattern of diamond shaped zones substantially free of fibers.
Claim 5
Dependent Claim
18 words
A three-dimensional non-woven fabric as defined in claim 1, wherein said first fiber layer further includes filler fibers.
Claim 6
Dependent Claim
21 words
A three-dimensional non-woven fabric as defined in claim 4, wherein said filler and bond-forming fibers are bonded together with a binder.
Claim 7
Dependent Claim
22 words
A three-dimensional non-woven fabric as defined in claim 1, wherein said bond-forming fibers are made of a low temperature melt thermoplastic material.
Claim 8
Dependent Claim
28 words
A three-dimensional non-woven fabric as defined in claim 6, wherein said bond-forming fibers are made of a material selected from the group consisting of polyester, polyethylene and polyamide.
Claim 9
Dependent Claim
31 words
A three-dimensional non-woven fabric as defined in claim 4, wherein said filler fibers are made of a material selected in from group consisting of rayon, acrylic material, cotton, polyester and polypropylene.
Claim 10
Dependent Claim
37 words
A three-dimensional non-woven fabric as defined in claim 5, wherein said binder is selected from the group consisting of aqueous emulsion, acrylic binder, styrene-butadiene resin, ethylene vinyl acetate, polyvinyl chloride, oil base emulsion and solvent base adhesive.
Claim 11
Dependent Claim
29 words
A three-dimensional non-woven fabric as defined in claim 4, wherein said first fiber layer includes approximately 50% of rayon fibers and approximately 50% of low temperature melt polyester fibers.
Claim 12
Dependent Claim
14 words
A three-dimensional non-woven fabric as defined in claim 1, wherein said material is polyester.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |