US3973563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive bandage backings
Assignee: Johnson and Johnson
•
Filing: 1975-03-06
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Granted: 1976-08-10
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Expires: 1995-03-06
Abstract
Abstract Adhesive bandage backings are provided, utilizing foamed combinations of natural rubber latex and synthetic elastomeric modifying agents, that are highly conformable to irregularly shaped parts of the body and exhibit other desirable characteristics.
Inventors
- 👤 Percy Green
- 👤 Margaret Cook Kordecki
- 👤 Roger David Arnold Lipman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:21
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61L15/585; Y; Y10; Y10S; Y10S273/00; Y10S273/05; Y10T; Y10T428/00; Y10T428/28
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
72 words
A highly conformable pressure-sensitive adhesive bandage backing comprising at least 45 parts by weight of natural rubber and at least 10 parts by weight of at least one synthetic elastomeric modifying agent selected from the group consisting of styrene-butadiene rubber, polyurethane, plasticized polyvinyl chloride, neoprene rubber, nitrile rubber, ethylene vinyl chloride copolymer, and mixtures thereof; wherein said backing has a tensile strength of from about 75 to 500 pounds per square inch.
Claim 2
Dependent Claim
72 words
A highly conformable pressure-sensitive adhesive bandage backing comprising at least 45 parts by weight of natural rubber and at least 10 parts by weight of at least one synthetic elastomeric modifying agent selected from the group consisting of styrene-butadiene rubber, polyurethane, plasticized polyvinyl chloride, neoprene rubber, nitrile rubber, ethylene vinyl chloride copolymer, and mixtures thereof; wherein said backing has a tensile strength of from about 75 to 500 pounds per square inch.
Claim 3
Dependent Claim
15 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is styrene-butadiene rubber.
Claim 4
Dependent Claim
14 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is polyurethane.
Claim 5
Dependent Claim
16 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is plasticized polyvinyl chloride.
Claim 6
Dependent Claim
15 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is neoprene rubber.
Claim 7
Dependent Claim
15 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is nitrile rubber.
Claim 8
Dependent Claim
17 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is ethylene vinyl chloride copolymer.
Claim 9
Dependent Claim
22 words
The adhesive bandage backing of claim 1, wherein the elastomeric modifying agent is a mixture of plasticized polyvinyl chloride and styrene-butadiene rubber.
Claim 10
Dependent Claim
21 words
The adhesive bandage backing of claim 1, said backing having a percent elongation at break of from about 10 to 500.
Claim 11
Dependent Claim
23 words
The adhesive bandage backing of claim 1, said backing having a 100 percent modulus of about 15 to 100 pounds per square inch.
Claim 12
Dependent Claim
19 words
The adhesive bandage backing of claim 1, said backing having a thickness of from about 5 to 27 mils.
Claim 13
Dependent Claim
24 words
The adhesive bandage backing of claim 1, said backing having a surface friction measured by angle of slip of from about 1 to 60.
Claim 14
Dependent Claim
24 words
The adhesive bandage backing of claim 1, said backing having a moisture vapor transmission rate of at least about 0.08 gms/cm 2 /24 hrs.
Claim 15
Dependent Claim
132 words
A highly conformable pressure-sensitive adhesive bandage backing comprising about 45 to 90 parts by weight of natural rubber and about 10 to 55 parts by weight of at least one synthetic elastomeric modifying agent selected from the group consisting of styrene-butadiene rubber, polyurethane, plasticized polyvinyl chloride, neoprene rubber, nitrile rubber, and ethylene vinyl chloride copolymer; said backing having a tensile strength of from about 75 to 500 pounds per square inch; a percent elongation at break of from about 10 to 500; a 100 % modulus of about 15 to 100 pounds per square inch; a thickness of from about 5 to 27 mils; a surface friction measured by angle of slip of from about 1 to 60; and a moisture vapor transmission rate of at least 0.08 gms/cm 2 /24 hrs.
Claim 16
Dependent Claim
132 words
A highly conformable pressure-sensitive adhesive bandage backing comprising about 45 to 90 parts by weight of natural rubber and about 10 to 55 parts by weight of at least one synthetic elastomeric modifying agent selected from the group consisting of styrene-butadiene rubber, polyurethane, plasticized polyvinyl chloride, neoprene rubber, nitrile rubber, and ethylene vinyl chloride copolymer; said backing having a tensile strength of from about 75 to 500 pounds per square inch; a percent elongation at break of from about 10 to 500; a 100 % modulus of about 15 to 100 pounds per square inch; a thickness of from about 5 to 27 mils; a surface friction measured by angle of slip of from about 1 to 60; and a moisture vapor transmission rate of at least 0.08 gms/cm 2 /24 hrs.
Claim 17
Dependent Claim
103 words
A pressure-sensitive adhesive bandage comprising a backing having a coating of a pressure-sensitive adhesive on one side thereof, an absorbent pad positioned on said adhesive surface and leaving said adhesive surface uncovered in some portions, said backing comprising at least 45 parts by weight of natural rubber and at least 10 parts by weight of at least one synthetic elastomeric modifying agent selected from the group consisting of styrene-butadiene rubber, polyurethane, plasticized polyvinyl chloride, neoprene rubber, nitrile rubber, and ethylene vinyl chloride copolymers and mixtures thereof, wherein said backing has a tensile strength of from about 75 to 500 pounds per square inch.
Claim 18
Dependent Claim
103 words
A pressure-sensitive adhesive bandage comprising a backing having a coating of a pressure-sensitive adhesive on one side thereof, an absorbent pad positioned on said adhesive surface and leaving said adhesive surface uncovered in some portions, said backing comprising at least 45 parts by weight of natural rubber and at least 10 parts by weight of at least one synthetic elastomeric modifying agent selected from the group consisting of styrene-butadiene rubber, polyurethane, plasticized polyvinyl chloride, neoprene rubber, nitrile rubber, and ethylene vinyl chloride copolymers and mixtures thereof, wherein said backing has a tensile strength of from about 75 to 500 pounds per square inch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |