Patent US5147698A successfully refreshed from Google Patents.
US5147698A
Expired / Lapsed
US
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Pressure sensitive adhesive film article having high moisture vapor transmission rate
Assignee: 3M Co
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Filing: 1991-01-22
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Granted: 1992-09-15
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Expires: 2011-01-22
Abstract
Abstract A pressure sensitive adhesive article is disclosed for treating a wound or attaching a device or article to the skin. The article comprises a film of presure sensitive adhesive having dispersed therein a discontinuous gaseous phase contained within voids in the adhesive. The adhesive is formed from the polymerization of a hydrophilic premix and exhibits high moisture vapor transmission and fluid absorbency.
Inventors
- 👤 Susan M. Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1452; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249983; Y10T428/249984
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
78 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film having a moisture vapor transmission rate from about 600 to about 2400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential.
Claim 2
Dependent Claim
78 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film having a moisture vapor transmission rate from about 600 to about 2400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential.
Claim 3
Dependent Claim
79 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix solution comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film having a moisture vapor transmission rate from about 600 to about 2400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential.
Claim 4
Dependent Claim
79 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix solution comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film having a moisture vapor transmission rate from about 600 to about 2400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential.
Claim 5
Dependent Claim
84 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film, at a thickness of 0.76 mm, having a moisture vapor transmission rate from about 600 to about 2400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential.
Claim 6
Dependent Claim
84 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film, at a thickness of 0.76 mm, having a moisture vapor transmission rate from about 600 to about 2400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential.
Claim 7
Dependent Claim
92 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film having a moisture vapor transmission rate from about 400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential and being capable of absorbing at least 50 percent of its weight of water in one hour.
Claim 8
Dependent Claim
92 words
A pressure sensitive adhesive article comprising a continuous, liquid impermeable film of pressure sensitive adhesive, derived from the polymerization of a hydrophilic premix comprising at least one ethylenically unsaturated monomer, said film having dispersed therein a discontinuous gaseous phase constituting at least 10 percent of the volume of said film, and said film having a moisture vapor transmission rate from about 400 g/m 2 per 24 hours at 40° C. and an 80% humidity differential and being capable of absorbing at least 50 percent of its weight of water in one hour.
Claim 9
Dependent Claim
27 words
The article of claim 1 wherein the hydrophilic premix is comprised of a hydrophilizing agent selected from the group consisting of polyhydric polyols, polyethers and mixtures thereof.
Claim 10
Dependent Claim
11 words
The article of claim 5 wherein the hydrophilizing agent is glycerin.
Claim 11
Dependent Claim
56 words
The article of claim 1 wherein at least one of the ethylenically unsaturated monomers is selected from the group consisting of alkyl acrylates having an average of 4-12 carbon atoms in their alkyl groups, acrylic acid, methacrylic acid, salts of acrylic acid and methacrylic acid, acrylamide, methacrylamide, hydroxyalkylacrylates, hydroxyalkylmethacrylates, acrylonitrile, methacrylonitrile, cyanoethylacrylate, maleic anhydride and N-vinyl-pyrrolidone.
Claim 12
Dependent Claim
29 words
The article of claim 1 wherein the ethylenically unsaturated monomer is further comprised of one or more monomer units derived from a polyether terminated with an ethylenically unsaturated group.
Claim 13
Dependent Claim
13 words
The article of claim 8 wherein the polyether is an acrylate-terminated polyethylene oxide.
Claim 14
Dependent Claim
14 words
9. The article of claim 8 wherein the polyether is an acrylate-terminated polypropylene oxide.
Claim 15
Dependent Claim
19 words
The article of claim 1 wherein the film is from about 0.07 mm to about 1.7 mm in thickness.
Claim 16
Dependent Claim
19 words
The article of claim 1 wherein the film has a void volume of from about 10% to about 85%.
Claim 17
Dependent Claim
14 words
The article of claim 1 further comprising a reinforcing layer embedded in said film.
Claim 18
Dependent Claim
12 words
The article of claim 13 wherein the reinforcing layer is a fabric.
Claim 19
Dependent Claim
15 words
The article of claim 1 further comprising a backing covering one face of the film.
Claim 20
Dependent Claim
34 words
The article of claim 15 wherein the backing is a conformable sheet having a moisture-vapor transmission of at least 1000 g/m 2 per 24 hours measured at 40° C. and 80% relative humidity differential.
Claim 21
Dependent Claim
20 words
The article of claim 1 further comprising at least one release liner in contact with a face of the film.
Claim 22
Dependent Claim
18 words
The article of claim 17 wherein both major faces of the film are covered with a release liner.
Claim 23
Dependent Claim
14 words
The article of claim 5 wherein the hydrophilizing agent is a polypropylene oxide glycol.
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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) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |