US4140115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive compositions for coating articles to be attached to skin
Assignee: Johnson and Johnson
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Filing: 1975-05-23
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Granted: 1979-02-20
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Expires: 1995-05-23
Abstract
Abstract Skin damage, i.e., the stripping of tissue cells from the stratum corneum, caused by removal of a backing material which has been held in adherent contact with a skin surface by means of a pressure sensitive adhesive composition coated on the backing material, is markedly reduced by incorporation of about 4 to 20% by weight of an unreacted polyol uniformly dispersed in the water-insoluble pressure sensitive adhesive mass. Suitable polyols include polyethylene glycol and polypropylene sorbitol monolaurate. This improved mass finds special application for use in conjunction with adhesive bandages or rolled tapes composed of a backing material of a plasticized film of polyvinyl chloride. Remarkably, the reduction in skin damage is accomplished without sacrificing low mass transfer to skin upon removal of the backing material, cohesive strength, adhesion, or wearability, all of which are highly desirable properties of pressure sensitive adhesive tapes and bandages.
Inventors
- 👤 Edward Schonfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:28
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61F; A61F13/00; A61F13/02; A61F13/0246; A61F13/0253; A61L15/20; C; C08; C08L; C08L33/00; C08L33/24; C08L33/26; Y; Y10; Y10T; Y10T428/00; Y10T428/31504
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
107 words
An adhesive material for use on the skin which reduces the stripping of tissue cells upon removal comprising a backing having coated thereon a water-insoluble pressure sensitive adhesive mass, said mass having uniformly dispersed therein from 4 to 20% by weight of an unreacted polyol having the formula ##STR5## wherein x is from about 4 to 20 and where R is H or CH 3 , R' is H or --CH 2 --CH 2 --, at least R or R' being H, and R is H, a sugar, a sugar alcohol or a C 12 -C 18 fatty acid ester of a sugar or a sugar alcohol.
Claim 2
Dependent Claim
107 words
An adhesive material for use on the skin which reduces the stripping of tissue cells upon removal comprising a backing having coated thereon a water-insoluble pressure sensitive adhesive mass, said mass having uniformly dispersed therein from 4 to 20% by weight of an unreacted polyol having the formula ##STR5## wherein x is from about 4 to 20 and where R is H or CH 3 , R' is H or --CH 2 --CH 2 --, at least R or R' being H, and R is H, a sugar, a sugar alcohol or a C 12 -C 18 fatty acid ester of a sugar or a sugar alcohol.
Claim 3
Dependent Claim
14 words
An adhesive material according to claim 1 in which said sugar alcohol is sorbitol.
Claim 4
Dependent Claim
17 words
An adhesive material according to claim 1 in which said fatty acid ester is a sorbitol monolaurate.
Claim 5
Dependent Claim
23 words
An adhesive composition according to claim 1 in which said polyol comprises from about 9 to 13% by weight of said adhesive mass.
Claim 6
Dependent Claim
19 words
An adhesive material according to claim 1 in which said water-insoluble pressure sensitive adhesive mass comprises an acrylic resin.
Claim 7
Dependent Claim
15 words
An adhesive material according to claim 5 in which said acrylic resin is 2-ethylhexyl acrylate.
Claim 8
Dependent Claim
21 words
An adhesive material according to claim 5 in which said water-insoluble pressure sensitive adhesive comprises 2-ethylhexyl acrylate, vinyl acetate, and N-tert-butylacrylamide.
Claim 9
Dependent Claim
22 words
An adhesive material according to claim 1 in which said water-insoluble pressure sensitive adhesive mass comprises a rubber elastomer and a tackifier.
Claim 10
Dependent Claim
25 words
An adhesive material according to claim 1 in which said polyol is a polyoxyethylene glycol having a number average molecular weight of at least 200.
Claim 11
Dependent Claim
30 words
An adhesive material according to claim 1 in which said polyol is a polyoxy C 2 -C 4 alkylene glycol having a number average molecular weight in excess of 200.
Claim 12
Dependent Claim
20 words
An adhesive material according to claim 9 in which said polyoxyethylene glycol has a number average molecular weight of 400.
Claim 13
Dependent Claim
26 words
An adhesive material according to claim 1 in which said backing is a film comprising plasticized polyvinyl chloride, and polyvinyl chloride copolymerize with a second monomer.
Claim 14
Dependent Claim
17 words
An adhesive material according to claim 1 in which said backing is a thin flexible plastic film.
Claim 15
Dependent Claim
107 words
An adhesive bandage for use on the skin which reduces the stripping of tissue cells upon removal comprising a backing having coated thereon a water-insoluble pressure sensitive adhesive mass, said mass having uniformly dispersed therein from 4 to 20% by weight of an unreacted polyol having the formula ##STR6## wherein x is from about 4 to 20 and where R is H or CH 3 , R' is H or --CH 2 --CH 2 --, at least R or R' being H, and R is H, a sugar, a sugar alcohol or a C 12 -C 18 fatty acid ester of a sugar or a sugar alcohol.
Claim 16
Dependent Claim
107 words
An adhesive bandage for use on the skin which reduces the stripping of tissue cells upon removal comprising a backing having coated thereon a water-insoluble pressure sensitive adhesive mass, said mass having uniformly dispersed therein from 4 to 20% by weight of an unreacted polyol having the formula ##STR6## wherein x is from about 4 to 20 and where R is H or CH 3 , R' is H or --CH 2 --CH 2 --, at least R or R' being H, and R is H, a sugar, a sugar alcohol or a C 12 -C 18 fatty acid ester of a sugar or a sugar alcohol.
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |