US4891957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stitchbonded material including elastomeric nonwoven fibrous web
Assignee: Kimberly Clark Corp
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Filing: 1989-03-02
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Granted: 1990-01-09
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Expires: 2009-03-02
Abstract
Abstract A stitchboard material including an elastomeric nonwoven fibrous web, e.g., an elastomeric web of meltblown fibers, and method of forming the material, is disclosed. The material, including the elastomeric web, is stretchable and has breathability, and avoids holes through the material at the location where the stitches pass through the material. The elastomeric web can be used in combination with elongatable or gatherable webs of fibrous material to provide stitchbonded stretchable composite fabrics having desired stretch and surface characteristics, and breathability, useful as fabric for wearing apparel (e.g., stretch corduroy) or other textile uses such as draperies and other home furnishings.
Inventors
- 👤 David C. Strack
- 👤 Samuel C. Baer
- 👤 Diana M. Cates
- 👤 Raju Venkatapathy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:31
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/52; D04B; D04B21/00; D04B21/14; D04B21/16; D04B21/165; D10; D10B; D10B2401/00; D10B2401/06; D10B2401/061; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/62; Y10T442/659; Y10T442/66; Y10T442/662
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
43 words
A stitchbonded elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length and having an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737.
Claim 2
Dependent Claim
43 words
A stitchbonded elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length and having an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737.
Claim 3
Dependent Claim
12 words
The web according to claim 1, wherein the web comprises meltblown fibers.
Claim 4
Dependent Claim
12 words
The web according to claim 2, wherein the fibers are meltblown microfibers.
Claim 5
Dependent Claim
19 words
The web according to claim 1, wherein the web is stretchable in a direction generally perpendicular to the stitches.
Claim 6
Dependent Claim
16 words
The web according to claim 4, wherein the web is stitchbonded to provide a corduroy fabric.
Claim 7
Dependent Claim
61 words
An elastomeric composite material comprising: an elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length; and a layer of another material stitchbonded to said web; and wherein said composite has an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737 .
Claim 8
Dependent Claim
61 words
An elastomeric composite material comprising: an elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length; and a layer of another material stitchbonded to said web; and wherein said composite has an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737 .
Claim 9
Dependent Claim
18 words
The elastomeric composite according to claim 6, wherein the web is positioned between two layers of another material.
Claim 10
Dependent Claim
19 words
The elastomeric composite according to claim 8, wherein each of the two layers is a web of fibrous material.
Claim 11
Dependent Claim
15 words
The elastomeric composite according to claim 8, wherein the fibrous material is resistant to creasing.
Claim 12
Dependent Claim
20 words
The elastomeric composite according to claim 6, wherein the composite is stretchable in a direction generally perpendicular to the stitches.
Claim 13
Dependent Claim
13 words
The elastomeric composite according to claim 10, stitchbonded to provide a corduroy fabric.
Claim 14
Dependent Claim
18 words
The elastomeric composite according to claim 7, wherein each of the two layers is a spunbond nonwoven web.
Claim 15
Dependent Claim
18 words
The elastomeric composite according to claim 7, wherein each of the two layers is a spunlaced nonwoven web.
Claim 16
Dependent Claim
17 words
The elastomeric composite according to claim 13, wherein the spunlaced nonwoven webs comprise spunlaced polyester fiber fabric.
Claim 17
Dependent Claim
48 words
The elastomeric composite according to claim 7, wherein the tensile strength of the composite is at least 15 Kg in the stitchbonding machine direction and at least 12.4 Kg in the stitchbonding machine direction and at least 12.4 Kg in the direction transverse to the stitchbonding machine direction.
Claim 18
Dependent Claim
38 words
The elastomeric composite according to claim 15, wherein the tear strength of the composite is at least 4 Kg in the stitchbonding machine direction and at least 0.99 Kg in the direction transverse to the stitchbonding machine direction.
Claim 19
Dependent Claim
19 words
The elastomeric composite according to claim 15, wherein the bursting strength of the composite is at least 470 KPa.
Claim 20
Dependent Claim
18 words
The elastomeric composite according to claim 6, wherein the stitch length of the stitchbonding is about 1.0-3.75 mm.
Claim 21
Dependent Claim
21 words
The elastomeric composite according to claim 6, wherein the stitch gauge of the stichbonding is about 3.5 to 22 yarns/25 mm.
Claim 22
Dependent Claim
17 words
The web according to claim 1, wherein the web is an elastomeric spunbond web of continuous filaments.
Claim 23
Dependent Claim
17 words
The web according to claim 1, wherein the web is an elastomeric nonwoven web of staple fibers.
Claim 24
Independent Claim
80 words
A method of forming a breathable elastomeric stitchbonded nonwoven fibrous web comprising: stitchbonding an elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length so as to provide an elastomeric web having an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737 that is capable of being stretched to a length that is at least about 125% of its relaxed length.
Claim 25
Independent Claim
80 words
A method of forming a breathable elastomeric stitchbonded nonwoven fibrous web comprising: stitchbonding an elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length so as to provide an elastomeric web having an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737 that is capable of being stretched to a length that is at least about 125% of its relaxed length.
Claim 26
Independent Claim
99 words
A method for forming a breathable nonwoven fibrous elastomeric composite material comprising: providing an elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length; providing a layer of another material in juxtaposed configuration to said web; and stitchbonding the web and the other material together so that said elastomeric composite has an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737 and is capable of being stretched to a length that is at least about 125% of its relaxed length.
Claim 27
Independent Claim
99 words
A method for forming a breathable nonwoven fibrous elastomeric composite material comprising: providing an elastomeric nonwoven fibrous web capable of being stretched to a length that is at least about 125% of its relaxed length; providing a layer of another material in juxtaposed configuration to said web; and stitchbonding the web and the other material together so that said elastomeric composite has an air permeability of 5-150 cm 3 /cm 2 S when measured in accordance with ASTM D 737 and is capable of being stretched to a length that is at least about 125% of its relaxed length.
Claim 28
Independent Claim
110 words
A method for forming a gathered breathable nonwoven fibrous elastomeric composite material comprising: providing an elastomeric nonwoven fibrous web stretched to a length that is at least about 125% of its relaxed length; providing a layer of a gatherable material in juxtaposed configuration to said web; and stitchbonding the web and the other material together; allowing the stitchbonded composite to relax to gather said layer of gatherable material; and wherein said elastomeric composite has an air permeability of 5-150 cm 3 /cm2 S when measured in accordance with ASTM D 737 and is capable of being stretched to a length that is at least about 125% of its relaxed length.
Claim 29
Independent Claim
110 words
A method for forming a gathered breathable nonwoven fibrous elastomeric composite material comprising: providing an elastomeric nonwoven fibrous web stretched to a length that is at least about 125% of its relaxed length; providing a layer of a gatherable material in juxtaposed configuration to said web; and stitchbonding the web and the other material together; allowing the stitchbonded composite to relax to gather said layer of gatherable material; and wherein said elastomeric composite has an air permeability of 5-150 cm 3 /cm2 S when measured in accordance with ASTM D 737 and is capable of being stretched to a length that is at least about 125% of its relaxed length.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
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