US5147698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive film article having high moisture vapor transmission rate
Assignee: 3M Co
•
Filing: 1991-01-22
•
Granted: 1992-09-15
•
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 08:45
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.
References Cited (Backward Citations)
US3645835A
Cited
CA936764A
Cited
US4181752A
Cited
US3972328A
Cited
US4452845A
Cited
CA1192825A
Cited
US4427737A
Cited
US4559938A
Cited
US4415615A
Cited
CA1168933A
Cited
US4499896A
Cited
US4554317A
Cited
WO1983003549A1
Cited
US4513739A
Cited
US4598004A
Cited
US4773409A
Cited
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 |