US4981747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite elastic material including a reversibly necked material
Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1988-09-23
•
Granted: 1991-01-01
•
Expires: 2008-09-23
Abstract
Abstract A composite elastic material including at least one reversibly necked material and at least one elastic sheet joined at least at two locations in which the reversibly necked material is formed from a neckable material which has been treated so that, upon application of a force to extend the necked material to its pre-necked dimensions, the material returns generally to its necked dimensions upon termination of the force. Also disclosed is a process for making a composite elastic material by joining a reversibly necked material to an elastic sheet at least at two locations.
Inventors
- 👤 Michael T. Morman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:38
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/04; B32B27/00; B32B27/12; B32B27/40; B32B37/00; B32B37/14; B32B37/144; B32B37/24; B32B38/00; B32B38/18; B32B38/1825; B32B7/00; B32B7/04; B32B7/12; A; A61; A61F; A61F13/00; A61F13/15; B32B2250/00; B32B2250/40; B32B2262/00; B32B2262/02; B32B2323/00; B32B2323/04; B32B2323/10; B32B37/12; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/25; Y10T428/253; Y10T442/00; Y10T442/60; Y10T442/601; Y10T442/602
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
23 words
A composite elastic material comprising at least one reversibly necked material joined to at least one elastic sheet at least at two locations.
Claim 2
Dependent Claim
23 words
A composite elastic material comprising at least one reversibly necked material joined to at least one elastic sheet at least at two locations.
Claim 3
Dependent Claim
46 words
The material of claim 1 wherein said reversibly necked material comprises a web selected from the group consisting of a bonded carded web of fibers, a web of spunbonded fibers, a web of meltblown fibers, and a multilayer material including at least one of said webs.
Claim 4
Dependent Claim
12 words
The material of claim 2 wherein said meltblown fibers include meltblown microfibers.
Claim 5
Dependent Claim
21 words
The material of claim 2 wherein said fibers comprise a polymer selected from the group consisting of polyolefins, polyesters, and polyamides.
Claim 6
Dependent Claim
29 words
The material of claim 4 wherein said polyolefin is selected from the group consisting of one or more of polyethylene, polypropylene, polybutene, ethylene copolymers, propylene copolymers, and butene copolymers.
Claim 7
Dependent Claim
38 words
The material of claim 2 wherein said reversibly necked material is a composite material comprising a mixture of fibers and one or more other materials selected from the group consisting of wood pulp, staple fibers, particulates and superabsorbents.
Claim 8
Dependent Claim
49 words
The material of claim 1 wherein said elastic sheet comprises an elastomeric polymer selected from the group consisting of elastic polyesters, elastic polyurethanes, elastic polyamides, and elastic A-B-A' block copolymers wherein A and A' are the same or different thermoplastic polymer, and wherein B is an elastomeric polymer block.
Claim 9
Dependent Claim
16 words
The material of claim 1 wherein said elastic sheet is an elastic web of meltblown fibers.
Claim 10
Dependent Claim
12 words
The material of claim 8 wherein said meltblown fibers include meltblown microfibers.
Claim 11
Dependent Claim
16 words
The material of claim 1 wherein said elastic sheet is a pressure sensitive elastomer adhesive sheet.
Claim 12
Dependent Claim
25 words
The material of claim 10 wherein the pressure sensitive elastomer adhesive sheet is formed from a blend of an elastomeric polymer and a tackifying resin.
Claim 13
Dependent Claim
12 words
The material of claim 11 wherein the blend further includes a polyolefin.
Claim 14
Dependent Claim
22 words
The material of claim 10 wherein said pressure sensitive elastomer adhesive sheet is a pressure sensitive elastomer adhesive web of meltblown fibers.
Claim 15
Dependent Claim
12 words
The material of claim 13 wherein said meltblown fibers include meltblown microfibers.
Claim 16
Dependent Claim
24 words
A composite elastic material comprising at least one reversibly necked polypropylene web joined to at least one elastic sheet at least at two locations.
Claim 17
Dependent Claim
24 words
A composite elastic material comprising at least one reversibly necked polypropylene web joined to at least one elastic sheet at least at two locations.
Claim 18
Dependent Claim
51 words
The material of claim 15 wherein said reversibly necked polypropylene web is comprises a web selected from the group consisting of a bonded carded web of polypropylene fibers, a web of spunbonded polypropylene fibers, a web of meltblown polyproplyene fibers, and a multilayer material including at least one of said webs.
Claim 19
Dependent Claim
39 words
The material of claim 15 wherein said reversibly necked polypropylene web comprises a web formed from a mixture of fibers and one or more other materials selected from the group consisting of wood pulp, staple fibers, particulates and superabsorbents.
Claim 20
Dependent Claim
12 words
The material of claim 16 wherein said meltblown fibers include meltblown microfibers.
Claim 21
Dependent Claim
49 words
The material of claim 15 wherein said elastic sheet comprises an elastomeric polymer selected from the group consisting of elastic polyesters, elastic polyurethanes, elastic polyamides, and elastic A-B-A' block copolymers wherein A and A' are the same or different thermoplastic polymer, and wherein B is an elastomeric polymer block.
Claim 22
Dependent Claim
16 words
The material of claim 15 wherein said elastic sheet is an elastic web of meltblown fibers.
Claim 23
Dependent Claim
12 words
The material of claim 20 wherein said meltblown fibers include meltblown microfibers.
Claim 24
Dependent Claim
16 words
The material of claim 15 wherein said elastic sheet is a pressure sensitive elastomer adhesive sheet.
Claim 25
Dependent Claim
25 words
The material of claim 22 wherein said pressure sensitive elastomer adhesive sheet is formed from a blend of an elastomeric polymer and a tackifying resin.
Claim 26
Dependent Claim
12 words
The material of claim 23 wherein said blend further includes a polyolefin.
Claim 27
Dependent Claim
22 words
The material of claim 22 wherein said pressure sensitive elastomer adhesive sheet is a pressure sensitive elastomer adhesive web of meltblown fibers.
Claim 28
Dependent Claim
11 words
The material of claim 25 wherein said meltblown fibers include microfibers.
Claim 29
Independent Claim
27 words
A method of producing a composite elastic material comprising joining at least one elastic sheet to at least one reversibly necked material at least at two places.
Claim 30
Independent Claim
27 words
A method of producing a composite elastic material comprising joining at least one elastic sheet to at least one reversibly necked material at least at two places.
Claim 31
Dependent Claim
45 words
The method claim 27 wherein said reversibly necked material comprises a web selected from the group consisting of a bonded carded web of fibers, a web of spunbonded fibers, a web of meltblown fibers, and a multilayer material including at least one of said webs.
Claim 32
Dependent Claim
14 words
The method of claim 28 wherein said web of meltblown fibers include meltblown microfibers.
Claim 33
Dependent Claim
21 words
The method of claim 28 wherein said fibers comprise a polymer selected from the group consisting of polyolefins, polyesters, and polyamides.
Claim 34
Dependent Claim
29 words
The method of claim 30 wherein said polyolefin is selected from the group consisting of one or more of polyethylene, polypropylene, polybutene, ethylene copolymers, propylene copolymers, and butene copolymers.
Claim 35
Dependent Claim
39 words
The method of claim 27 wherein said reversibly necked material is a composite material comprising a mixture of fibers and one or more other materials selected from the group consisting of wood pulp, staple fibers, particulates and superabsorbent materials.
Claim 36
Dependent Claim
49 words
The method of claim 27 wherein said elastic sheet comprises an elastomeric polymer selected from the group consisting of elastic polyesters, elastic polyurethanes, elastic polyamides, and elastic A-B-A' block copolymers wherein A and A' are the same or different thermoplastic polymer, and wherein B is an elastomeric polymer block.
Claim 37
Dependent Claim
16 words
The method of claim 27 wherein said elastic sheet is an elastic web of meltblown fibers.
Claim 38
Dependent Claim
12 words
The method of claim 34 wherein said meltblown fibers include meltblown microfibers.
Claim 39
Dependent Claim
16 words
The method of claim 27 wherein said elastic sheet is a pressure sensitive elastomer adhesive sheet.
Claim 40
Dependent Claim
25 words
The method of claim 36 wherein said pressure sensitive elastomer adhesive sheet is formed from a blend of an elastomeric polymer and a tackifying resin.
Claim 41
Dependent Claim
12 words
The method of claim 37 wherein said blend further includes a polyolefin.
Claim 42
Dependent Claim
22 words
The method of claim 36 wherein said pressure sensitive elastomer adhesive sheet is a pressure sensitive elastomer adhesive web of meltblown fibers.
Claim 43
Dependent Claim
11 words
The method of claim 39 wherein said meltblown fibers include microfibers.
Claim 44
Dependent Claim
27 words
The method of claim 27 wherein said elastic sheet and said reversibly necked material are joined by forming said elastic sheet directly on said reversibly necked material.
Claim 45
Dependent Claim
70 words
The method of claim 36 wherein said pressure sensitive elastomer adhesive sheet and said reversibly necked material are joined by applying a tensioning force to said reversibly necked material and winding said reversibly necked material and said pressure sensitive elastomer adhesive sheet in a wind up roll so that pressure from said reversibly necked material activates the sheet and bonds the necked material to the pressure sensitive elastomer adhesive sheet.
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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) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |