Patent US3645835A successfully refreshed from Google Patents.
US3645835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture-vapor-permeable pressure-sensitive adhesive materials
Assignee: TJ Smith and Nephew Ltd
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Filing: 1969-07-07
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Granted: 1972-02-29
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Expires: 1989-07-07
Abstract
Abstract This invention relates to a moisture-vapor-permeable pressure-sensitive adhesive material for use on animal skin and nails, e.g. a surgical drape, suture strip or sheet, adhesive dressing, bandage, plaster, strapping tape, decorative nail covering, or decorative cosmetic product. The adhesive material comprises a backing material, and a pressure-sensitive adhesive on at least substantially the whole of the body adhering portion of at least one surface of said backing material, both said backing material and said adhesive being moisture-vapor-permeable and unaffected by water and at least one of said backing material and said adhesive comprising a synthetic polymer and being continuous and nonpermeable to liquid water, said adhesive material having a moisture vapor permeability of at least 300 g./sq. meter/24 hours/40 DEG C./80 percent RH.
Inventors
- 👤 Martin E Hodgson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:54
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61F; A61F13/00; A61F13/02; A61F13/023; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61Q; A61Q3/00; C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/26; A61F13/10; A61F13/104; A61F13/105; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1424; Y10T428/24; Y10T428/24802; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/3158; Y10T428/31786; Y10T428/31855
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
29 words
A pressure-sensitive adhesive material as claimed in claim 1, which has a moisture vapor permeability of at least 500 g./sq. meter/24 hours at 40* C. and 80 percent RH.
Claim 2
Dependent Claim
12 words
A pressure-sensitive adhesive material as claimed in claim 1, which is oxygen-permeable.
Claim 3
Dependent Claim
21 words
A pressure-sensitive adhesive material as claimed in claim 1, wherein the backing material is continuous and the adhesive is not continuous.
Claim 4
Dependent Claim
35 words
A pressure-sensitive adhesive material as claimed in claim 1, which is in the form of a surgical drape, suture strip or sheet, adhesive dressing, bandage, plaster, strapping tape, decorative nail covering, or decorative cosmetic product.
Claim 5
Dependent Claim
88 words
A moisture-vapour-permeable pressure-sensitive adhesive material for use on animal skin and nails comprising a backing material and a pressure-sensitive adhesive on at least substantially the whole of the body-adhering portion of at least one surface of said backing material, both said backing material and said adhesive being moisture-vapour-permeable and unaffected by water and at least said adhesive comprising a synthetic polymer and being continuous and nonpermeable to liquid water, said adhesive material having a moisture vapor permeability of at least 300 g./sq. meter/24 hours/ 40* C./80 percent RH.
Claim 6
Dependent Claim
24 words
A pressure-sensitive adhesive as claimed in claim 6 wherein the adhesive is a polyvinyl ethyl ethers or an acrylic ester copolymer containing hydrophilic groups.
Claim 7
Dependent Claim
15 words
A pressure-sensitive adhesive material as claimed in claim 6 wherein the backing material is noncontinuous.
Claim 8
Dependent Claim
24 words
A pressure-sensitive adhesive material as claimed in claim 8, wherein the backing material is a microporous film of plasticized polyvinyl chloride or nonwoven fabric.
Claim 9
Dependent Claim
38 words
A pressure-sensitive adhesive material as claimed in claim 9, wherein the nonwoven fabric is based on cellulose or synthetic polymer fibers which may be crimped and/or laid down in such a manner as to give an elastic fabric.
Claim 10
Dependent Claim
22 words
A pressure-sensitive adhesive material as claimed in claim 10, wherein the fabric comprises extruded composite synthetic fibers or a spun-bonded polyester fabric.
Claim 11
Dependent Claim
89 words
A moisture-vapour-permeable pressure-sensitive adhesive material for use on animal skin and nails, comprising a baking material having a pressure-sensitive adhesive on at least substantially the whole of the body-adhering portion of at least one surface of said backing material, both said backing material and said adhesive being moisture-vapour-permeable and unaffected by water and both said backing material and said adhesive comprising a synthetic polymer and being continuous and nonpermeable to liquid water, said adhesive material having a moisture vapor permeability of at least 300 g./sq.meter/24 hours/40* C./80 percent RH.
Claim 12
Dependent Claim
42 words
A pressure-sensitive adhesive material as claimed in claim 12 wherein the backing material comprises a copolymer obtainable by copolymerizing an hydroxy alkyl acrylate or methacrylate with an alkoxy alkyl acrylate or methacrylate and optionally with a minor amount of a further monomer.
Claim 13
Dependent Claim
38 words
A pressure-sensitive adhesive material as claimed in claim 12, wherein the backing material comprises a homopolymer of ethoxy ethyl methacrylate or methoxy ethyl methacrylate or a copolymer of methyl methacrylate with ethoxy ethyl methacrylate or methoxy ethyl methacrylate.
Claim 14
Dependent Claim
18 words
A pressure-sensitive adhesive material as claimed in claim 12 wherein the backing material comprises a thermoplastic polyurethane film.
Claim 15
Dependent Claim
17 words
A pressure-sensitive adhesive material as claimed in claim 12, wherein the adhesive comprises a polyvinyl ethyl ether.
Claim 16
Dependent Claim
37 words
A pressure-sensitive adhesive material as claimed in claim 12 which is in the form of a nail cover, a medical or surgical dressing, a surgical drape, a suture strip, an elastic adhesive bandage or a strapping tape.
Claim 17
Dependent Claim
31 words
A pressure-sensitive adhesive material as claimed in claim 12, which is in the form of a nail cover and the backing material has a thickness of from 1 to 3 mils.
Claim 18
Dependent Claim
37 words
A pressure-sensitive adhesive material as claimed in claim 17 which is in the form of a nail cover and in which the adhesive is applied in an amount of from 5 to 75 grams per square meter.
Claim 19
Dependent Claim
52 words
A pressure-sensitive adhesive material as claimed in claim 12 wherein the backing material comprises a copolymer obtainable by reacting an alkoxy alkyl acrylate or methacrylate with a different alkoxy alkyl acrylate or methacrylate, no monomers other than alkoxy alkyl acrylates or methacrylates or polymers formed therefrom being present in the reaction mixture.
Claim 20
Dependent Claim
23 words
A pressure-sensitive adhesive material as claimed in claim 20, wherein the backing material comprises a copolymer of ethoxyethyl methacrylate and methoxy ethyl methacrylate.
Claim 21
Dependent Claim
22 words
A pressure-sensitive adhesive material as claimed in claim 21, wherein the backing material comprises a 50/50, 60/40 or 70/30 copolymer of MEMA/EEMA.
Claim 22
Dependent Claim
17 words
A pressure-sensitive adhesive material as claimed in claim 20 wherein the adhesive comprises a polyvinyl ethyl ether.
Claim 23
Dependent Claim
30 words
A pressure-sensitive adhesive material as claimed in claim 20 which is in the form of a suture strip and which is wholly or partially reinforced with woven or nonwoven fabrics.
Claim 24
Dependent Claim
44 words
A pressure-sensitive adhesive material as claimed in claim 13 wherein said hydroxy alkyl acrylate or said methoacrylate comprises hydroxy ethyl methacrylate, hydroxy propyl acrylate, or hydroxy propyl methacrylate, and wherein said alkoxy alkyl acrylate or methacrylate comprises ethoxy ethyl methacrylate or methoxy ethyl methacrylate.
Claim 25
Dependent Claim
20 words
A pressure-sensitive adhesive material as claimed in claim 17 in which the backing material is reinforced by a nonwoven material.
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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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |