US4789699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambient temperature bondable elastomeric nonwoven web
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1986-10-15
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Granted: 1988-12-06
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Expires: 2006-10-15
Abstract
Abstract An extrudable composition for forming nonwoven elastomeric material having pressure sensitive adhesive properties, nonwoven elastomeric sheet material (e.g., fibrous nonwoven webs) formed of such composition, stretch bonded laminates using such sheets, and methods of forming such sheets and such laminates, are disclosed. The composition includes an elastomeric polymer and a tackifying resin, and can also include a polyolefin. The nonwoven sheet material can be a meltblown nonwoven web. The laminate can be formed by tensioning the elastomeric sheet material and bonding a gatherable web (e.g., a spunbond polypropylene web) to the tensioned sheet material by application of pressure, the bonding being accomplished due to the adhesivity of the elastomeric sheet material and without application of heat for softening the sheet material and/or gatherable web.
Inventors
- 👤 John S. Kieffer
- 👤 Tony J. Wisneski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:55
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/10; C08; C08L; C08L53/00; C08L53/02; B; B32; B32B; B32B25/00; B32B25/14; B32B5/00; B32B5/02; B32B5/022; B32B5/04; B32B5/22; B32B5/24; B32B7/00; B32B7/04; B32B7/12; C08L53/025; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T442/00; Y10T442/60; Y10T442/601; Y10T442/659; Y10T442/66
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
61 words
A nonwoven elastomeric web comprising fibers formed from a blend including a thermoplastic elastomeric polymer and a tackifying resin, wherein said web is adapted to form a bond to a sheet of spunbonded polypropylene in the temperature range of from about 60 degrees F. to about 180 degrees F., said bond having an internal cohesion of at least about 3.9 kilograms.
Claim 2
Dependent Claim
61 words
A nonwoven elastomeric web comprising fibers formed from a blend including a thermoplastic elastomeric polymer and a tackifying resin, wherein said web is adapted to form a bond to a sheet of spunbonded polypropylene in the temperature range of from about 60 degrees F. to about 180 degrees F., said bond having an internal cohesion of at least about 3.9 kilograms.
Claim 3
Dependent Claim
18 words
The nonwoven elastomeric web according to claim 1, wherein the thermoplastic elastomeric polymer comprises an elastomeric block copolymer.
Claim 4
Dependent Claim
41 words
The nonwoven elastomeric web according to claim 2, wherein the elastomeric block copolymer comprises an A-B-A' block copolymer where A and A' are the same or different thermoplastic endblocks and comprise a styrenic moiety and B is a rubbery poly(ethylene-butylene) block.
Claim 5
Dependent Claim
15 words
The nonwoven elastomeric web according to claim 3, wherein said blend further includes a polyolefin.
Claim 6
Dependent Claim
30 words
The nonwoven elastomeric web according to claim 4, wherein the polyolefin is selected from the group consisting of polyethylene, polypropylene, polybutene, ethylene copolymers, propylene copolymers, butene copolymers, and mixtures thereof.
Claim 7
Dependent Claim
25 words
The nonwoven elastomeric web according to claim 1, wherein said tackifying resin is selected from the group including hydrogenated hydrocarbon resins and turpene hydrocarbon resins.
Claim 8
Dependent Claim
53 words
The nonwoven elastomeric web according to claim 5, wherein said blend comprises from about 40 to about 80 percent, by weight, of said A-B-A' block copolymer, from about 5 to about 40 percent, by weight, of said polyolefin and from about 5 percent to about 30 percent, by weight, of said tackifying resin.
Claim 9
Dependent Claim
39 words
The nonwoven elastomeric web according to claim 6, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a melt viscosity of about 100 poises in the range of from about 126 degrees C. to about 159 degrees C.
Claim 10
Dependent Claim
35 words
The nonwoven elastomeric web according to claim 6, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a softening point in the range of from about 94 degrees C. to about 126 degrees C.
Claim 11
Dependent Claim
27 words
The nonwoven elastomeric web according to claim 6, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a molecular weight from about 650 to about 1,000.
Claim 12
Dependent Claim
41 words
The nonwoven elastomeric web according to claim 6, wherein said tackifying resin comprises a turpene hydrocarbon resin having a softening point of about 105 degrees C., a specific gravity of about 1.02 and a flash point of about 480 degrees F.
Claim 13
Dependent Claim
13 words
The nonwoven elastomeric web according to claim 1, wherein said fibers are microfibers.
Claim 14
Dependent Claim
61 words
A nonwoven elastomeric web comprising fibers formed from a blend including a thermoplastic elastomeric polymer and a tackifying resin, wherein said web is adapted to form a bond to a sheet of spunbonded polypropylene in the temperature range of from about 100 degrees F. to about 140 degrees F., said bond having an internal cohesion of at least about 3.9 kilograms.
Claim 15
Dependent Claim
61 words
A nonwoven elastomeric web comprising fibers formed from a blend including a thermoplastic elastomeric polymer and a tackifying resin, wherein said web is adapted to form a bond to a sheet of spunbonded polypropylene in the temperature range of from about 100 degrees F. to about 140 degrees F., said bond having an internal cohesion of at least about 3.9 kilograms.
Claim 16
Dependent Claim
18 words
The nonwoven elastomeric web according to claim 13, wherein the thermoplastic elastomeric polymer comprises an elastomeric block copolymer.
Claim 17
Dependent Claim
41 words
The nonwoven elastomeric web according to claim 14, wherein the elastomeric block copolymer comprises an A-B-A' block copolymer where A and A' are the same or different thermoplastic endblocks that comprise a styrenic moiety and B is a rubbery poly(ethylene-butylene) block.
Claim 18
Dependent Claim
15 words
The nonwoven elastomeric web according to claim 15, wherein said blend further includes a polyolefin.
Claim 19
Dependent Claim
30 words
The nonwoven elastomeric web according to claim 16, wherein the polyolefin is selected from the group consisting of polyethylene, polypropylene, polybutene, ethylene copolymers, propylene copolymers, butene copolymers, and mixtures thereof.
Claim 20
Dependent Claim
53 words
The nonwoven elastomeric web according to claim 17, wherein said blend comprises from about 40 to about 80 percent, by weight, of said A-B-A' block copolymer, from about 5 to about 40 percent, by weight, of said polyolefin and from about 5 percent to about 30 percent, by weight, of said tackifying resin.
Claim 21
Dependent Claim
25 words
The nonwoven elastomeric web according to claim 13, wherein said tackifying resin is selected from the group including hydrogenated hydrocarbon resins and turpene hydrocarbon resins.
Claim 22
Dependent Claim
38 words
The nonwoven elastomeric web according to claim 19, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a melt viscosity of about 100 poises in the range of from about126 degrees C. to about 159 degrees C.
Claim 23
Dependent Claim
35 words
The nonwoven elastomeric web according to claim 19, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a softening point in the range of from about 94 degrees C. to about 126 degrees C.
Claim 24
Dependent Claim
27 words
The nonwoven elastomeric web accordinag to claim 19, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a molecular weight from about 650 to about 1,000.
Claim 25
Dependent Claim
41 words
The nonwoven elastomeric web according to claim 19, wherein said tackifying resin comprises a turpene hydrocarbon resin having a softening point of about 105 degrees C., a specific gravity of about 1.02 and a flash point of about 480 degrees F.
Claim 26
Dependent Claim
13 words
The nonwoven elastomeric web according to claim 13, wherein said fibers are microfibers.
Claim 27
Dependent Claim
50 words
A nonwoven elastomeric web comprising fibers formed from a blend including a thermoplastic elastomeric polymer and a tackifying resin, wherein said web is adapted to form a bond to a sheet of spunbonded polypropylene at about ambient temperature, said bond having an internal cohesion of at least about 3.9 kilograms.
Claim 28
Dependent Claim
50 words
A nonwoven elastomeric web comprising fibers formed from a blend including a thermoplastic elastomeric polymer and a tackifying resin, wherein said web is adapted to form a bond to a sheet of spunbonded polypropylene at about ambient temperature, said bond having an internal cohesion of at least about 3.9 kilograms.
Claim 29
Dependent Claim
18 words
The nonwoven elastomeric web according to claim 25, wherein the thermoplastic elastomeric polymer comprises an elastomeric block copolymer.
Claim 30
Dependent Claim
41 words
The nonwoven elastomeric web according to claim 26, wherein the elastomeric block copolymer comprises an A-B-A' block copolymer where A and A' are the same or different thermoplastic endblocks that contain a styrenic moiety and B is a rubbery poly(ethylene-butylene) block.
Claim 31
Dependent Claim
15 words
The nonwoven elastomeric web according to claim 27, wherein said blend further includes a polyolefin.
Claim 32
Dependent Claim
30 words
The nonwoven elastomeric web according to claim 28, wherein the polyolefin is selected from the group consisting of polyethylene, polypropylene, polybutene, ethylene copolymers, propylene copolymers, butene copolymers, and mixtures thereof.
Claim 33
Dependent Claim
53 words
The nonwoven elastomeric web according to claim 29, wherein said blend comprises from about 40 to about 80 percent, by weight, of said A-B-A' block copolymer, from about 5 to about 40 percent, by weight, of said polyolefin and from about 5 percent to about 30 percent, by weight, of said tackifying resin.
Claim 34
Dependent Claim
25 words
The nonwoven elastomeric web according to claim 25, wherein said tackifying resin is selected from the group including hydrogenated hydrocarbon resins and turpene hydrocarbon resins.
Claim 35
Dependent Claim
39 words
The nonwoven elastomeric web according to claim 31, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a melt viscosity of about 100 poises in the range of from about 126 degrees C. to about 159 degrees C.
Claim 36
Dependent Claim
35 words
The nonwoven elastomeric web according to claim 31, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a softening point in the range of from about 94 degrees C. to about 126 degrees C.
Claim 37
Dependent Claim
27 words
The nonwoven elastomeric web according to claim 31, wherein said tackifying resin comprises a hydrogenated hydrocarbon resin having a molecular weight from about 650 to about 1,000.
Claim 38
Dependent Claim
41 words
The nonwoven elastomeric web according to claim 31, wherein said tackifying resin comprises a turpene hydrocarbon resin having a softening point of about 105 degrees C., a specific gravity of about 1.02 and a flash point of about 480 degrees F.
Claim 39
Dependent Claim
13 words
The nonwoven elastomeric web according to claim 25, wherein said fibers are microfibers.
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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) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |