US4965122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversibly necked material
Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1988-09-23
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Granted: 1990-10-23
•
Expires: 2008-09-23
Abstract
Abstract A reversibly necked material capable of stretching at least about 75 percent and recovering at least about 50 percent when stretched about 75 percent, typically in a direction generally parallel to the direction of necking. The reversibly necked material is made by applying a tensioning force to at least one material to neck the material, heating the necked material, and cooling the necked material that the reversibly necked material possesses a greater heat of fusion and/or a lower onset of melting than the material before heating while stretched.
Inventors
- 👤 Michael T. Morman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:16
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/06; B29C61/00; B29C61/06; B29C61/0608; B29C61/0658; B32; B32B; B32B5/00; B32B5/02; B32B5/08; B32B5/22; B32B5/24; B32B5/26; B29K; B29K2313/00; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10S428/91; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T442/00; Y10T442/60; Y10T442/601; Y10T442/608; Y10T442/614; Y10T442/619; Y10T442/659; Y10T442/673
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
62 words
A reversibly necked material adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked material has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material possesses a greater heat of fusion than before being reversibly necked.
Claim 2
Dependent Claim
62 words
A reversibly necked material adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked material has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material possesses a greater heat of fusion than before being reversibly necked.
Claim 3
Dependent Claim
62 words
A reversibly necked material adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked material has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material possesses a greater heat of fusion than before being reversibly necked.
Claim 4
Dependent Claim
62 words
A reversibly necked material adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked material has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material possesses a greater heat of fusion than before being reversibly necked.
Claim 5
Dependent Claim
53 words
The material of claim 2 wherein said reversibly necked material comprises a web selected from the group consisting of a bonded carded web, a web of spunbonded fibers, a web of meltblown fibers, and a multilayer material of at least one web of meltblown fibers and at least one web of spunbonded fibers.
Claim 6
Dependent Claim
12 words
The material of claim 3 wherein said meltblown fibers include meltblown microfibers.
Claim 7
Dependent Claim
21 words
The material of claim 3 wherein said fibers comprise a polymer selected from the group consisting of polyolefins, polyesters, and polyamides.
Claim 8
Dependent Claim
29 words
The material of claim 5 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 9
Dependent Claim
41 words
The material of claim 2 wherein said reversibly necked material is a composite material comprising a mixture of meltblown fibers and one or more secondary materials selected from the group consisting of textile fibers, wood pulp fibers, particulates and super-absorbent materials.
Claim 10
Dependent Claim
31 words
The material of claim 1 wherein said reversibly necked material is adapted to stretch at least about 125 percent and recover at least about 50 percent when stretch about 125 percent.
Claim 11
Dependent Claim
31 words
The material of claim 2 wherein said reversibly necked material is adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 12
Dependent Claim
64 words
A reversibly necked polypropylene web adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, wherein said reversibly necked polypropylene web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material has a greater heat of fusion than before being reversibly necked.
Claim 13
Dependent Claim
64 words
A reversibly necked polypropylene web adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, wherein said reversibly necked polypropylene web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material has a greater heat of fusion than before being reversibly necked.
Claim 14
Dependent Claim
64 words
A reversibly necked polypropylene web adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, wherein said reversibly necked polypropylene web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material possesses a greater heat of fusion than before being reversibly necked.
Claim 15
Dependent Claim
64 words
A reversibly necked polypropylene web adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, wherein said reversibly necked polypropylene web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the material possesses a greater heat of fusion than before being reversibly necked.
Claim 16
Dependent Claim
56 words
The material of claim 11 wherein said reversibly necked polypropylene web 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 of at least one web of meltblown fibers and at least one web of spunbonded fibers.
Claim 17
Dependent Claim
12 words
The material of claim 11 wherein said meltblown fibers include meltblown microfibers.
Claim 18
Dependent Claim
41 words
The material of claim 11 wherein said reversibly necked polypropylene web is a composite material comprising a mixture meltblown fibers and one or more secondary materials selected from the group consisting of textile fibers, wood pulp fibers, particulates and super-absorbent materials.
Claim 19
Dependent Claim
31 words
The material of claim 10 wherein said reversibly necked material is adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 20
Dependent Claim
31 words
The material of claim 11 wherein said reversibly necked material is adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 21
Dependent Claim
41 words
A multilayer material including at least one material which is reversibly necked by drawing at ambient temperature and then heating and cooling while in a necked configuration so that the material possess a greater heat of fusion than before reversibly necked.
Claim 22
Dependent Claim
41 words
A multilayer material including at least one material which is reversibly necked by drawing at ambient temperature and then heating and cooling while in a necked configuration so that the material possess a greater heat of fusion than before reversibly necked.
Claim 23
Dependent Claim
69 words
A multilayer material comprising at least two reversibly necked materials adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, and wherein said reversibly necked materials have been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the materials posses a greater heat of fusion than before being reversibly necked.
Claim 24
Dependent Claim
69 words
A multilayer material comprising at least two reversibly necked materials adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, and wherein said reversibly necked materials have been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the materials posses a greater heat of fusion than before being reversibly necked.
Claim 25
Dependent Claim
69 words
A multilayer material comprising at least two reversibly necked materials adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, and wherein said reversibly necked materials have been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the materials posses a greater heat of fusion than before being reversibly necked.
Claim 26
Dependent Claim
69 words
A multilayer material comprising at least two reversibly necked materials adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent, and wherein said reversibly necked materials have been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the materials posses a greater heat of fusion than before being reversibly necked.
Claim 27
Dependent Claim
34 words
The material of claim 19 wherein said reversibly necked material comprises a web selected from the group consisting of a bonded carded web, a web of spunbonded fibers, and a web of meltblown fibers.
Claim 28
Dependent Claim
31 words
The material of claim 18 wherein said reversibly necked material is adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 29
Dependent Claim
31 words
The material of claim 19 wherein said reversibly necked material is adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 30
Dependent Claim
24 words
A reversibly necked material adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 31
Dependent Claim
24 words
A reversibly necked material adapted to stretch at least about 125 percent and recover at least about 50 percent when stretched about 125 percent.
Claim 32
Dependent Claim
90 words
A reversibly necked coherent web formed of fibers joined solely by interfiber bonder, said web being adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the web posses a greater heat of fusion than before being reversibly necked and wherein said fibers are joined solely by interfiber bonding to form a coherent web structure.
Claim 33
Dependent Claim
90 words
A reversibly necked coherent web formed of fibers joined solely by interfiber bonder, said web being adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the web posses a greater heat of fusion than before being reversibly necked and wherein said fibers are joined solely by interfiber bonding to form a coherent web structure.
Claim 34
Dependent Claim
90 words
A reversibly necked coherent web formed of fibers joined solely by interfiber bonder, said web being adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the web possesses a lower onset of melting than before being reversibly necked and wherein said fibers are joined solely by interfiber bonding to form a coherent web structure.
Claim 35
Dependent Claim
90 words
A reversibly necked coherent web formed of fibers joined solely by interfiber bonder, said web being adapted to stretch at least about 75 percent and recover at least about 50 percent when stretched about 75 percent wherein said reversibly necked web has been necked by drawing at ambient temperature and then heated and cooled while in a necked configuration so that the web possesses a lower onset of melting than before being reversibly necked and wherein said fibers are joined solely by interfiber bonding to form a coherent web structure.
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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) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |