US4372311A
Expired / Lapsed
US
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Disposable articles coated with degradable water insoluble polymers
Assignee: Union Carbide Corp
•
Filing: 1980-09-12
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Granted: 1983-02-08
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Expires: 2000-09-12
Abstract
Abstract Described herein are disposable articles made from a water soluble polymer or a substrate made from such polymer, a surface of said article or substrate coated with a degradable water-insoluble polymer.
Inventors
- 👤 James E. Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:10
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; A61F13/15203; A61F13/15252; A61F13/26; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/62; A61F13/2002; A61F13/202; A61F13/84; A61F13/8405; A61F2013/15008; A61F2013/15048; A61F13/15211; A61F2013/15235; A61F13/51; A61F2013/51002; A61F2013/51023; A61F2013/51035; A61F2013/51059; A61F2013/51061; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31855; Y10T428/3188
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
66 words
A disposable article made from a water soluble polymer selected from one or more of a poly(alkylene oxide), hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, polyacrylic acid, or poly(vinyl methyl ether-co maleic anhydride), a surface of said article coated with a degradable water-insoluble polymer selected from one or more of a cyclic ester polymer, a poly(β-hydroxy butyrate), a dialkanoyl polymer, or an ethylene polymer.
Claim 2
Dependent Claim
66 words
A disposable article made from a water soluble polymer selected from one or more of a poly(alkylene oxide), hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, polyacrylic acid, or poly(vinyl methyl ether-co maleic anhydride), a surface of said article coated with a degradable water-insoluble polymer selected from one or more of a cyclic ester polymer, a poly(β-hydroxy butyrate), a dialkanoyl polymer, or an ethylene polymer.
Claim 3
Dependent Claim
28 words
A disposable article as defined in claim 1, wherein the surface of the article is coated with from about 0.05 to about 5.0 mils of the water-insoluble polymer.
Claim 4
Dependent Claim
13 words
A disposable article as defined in claim 1 which is a catamenial device.
Claim 5
Dependent Claim
13 words
A disposable article as defined in claim 3 which is a sanitary napkin.
Claim 6
Dependent Claim
13 words
A disposable article as defined in claim 3 which is a tampon applicator.
Claim 7
Dependent Claim
12 words
A disposable article as defined in claim 1 which is a diaper.
Claim 8
Dependent Claim
12 words
A disposable article as defined in claim 1 which is a bandage.
Claim 9
Dependent Claim
22 words
A disposable article as defined in claim 1, wherein the entire surface of the article is coated with a degradable water-insoluble polymer.
Claim 10
Dependent Claim
12 words
A disposable article as defined in claim 8 which is a laminate.
Claim 11
Dependent Claim
13 words
A disposable article as defined in claim 8 which contains a seed therein.
Claim 12
Dependent Claim
15 words
A disposable article as defined in claim 8 which is a carrier for organic material.
Claim 13
Dependent Claim
22 words
A disposable article containing a poly(ethylene oxide) polymer, a surface of the article containing such polymer coated with a degradable water-insoluble polymer.
Claim 14
Dependent Claim
22 words
A disposable article containing a poly(ethylene oxide) polymer, a surface of the article containing such polymer coated with a degradable water-insoluble polymer.
Claim 15
Dependent Claim
17 words
A disposable article as defined in claim 12 wherein the water-insoluble polymer is a biodegradable polycaprolactone polymer.
Claim 16
Dependent Claim
13 words
A disposable article as defined in claim 12 which is a catamenial device.
Claim 17
Dependent Claim
13 words
A disposable article as defined in claim 14 which is a sanitary napkin.
Claim 18
Dependent Claim
13 words
A disposable article as defined in claim 14 which is a tampon applicator.
Claim 19
Dependent Claim
14 words
A disposable article as defined in claim 12 or 13 which is a diaper.
Claim 20
Dependent Claim
67 words
A disposable substrate made from a water soluble polymer selected from one or more of a poly(alkylene oxide), hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, polyacrylic acid, or poly(vinyl methyl ether-co maleic anhydride), a surface of said substrate coated with a degradable water-insoluble polymer is selected from one or more of a cyclic ester polymer, a poly(β-hydroxy butyrate), a dialkanoyl polymer, or an ethylene polymer.
Claim 21
Dependent Claim
67 words
A disposable substrate made from a water soluble polymer selected from one or more of a poly(alkylene oxide), hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, polyacrylic acid, or poly(vinyl methyl ether-co maleic anhydride), a surface of said substrate coated with a degradable water-insoluble polymer is selected from one or more of a cyclic ester polymer, a poly(β-hydroxy butyrate), a dialkanoyl polymer, or an ethylene polymer.
Claim 22
Dependent Claim
16 words
A disposable substrate as defined in claim 18 in the form of a film or sheet.
Claim 23
Dependent Claim
25 words
A disposable substrate as defined in claim 18, wherein the surface is coated with from about 0.05 to about 5.0 mils of the water-insoluble polymer.
Claim 24
Dependent Claim
35 words
A disposable article or substrate made from a water soluble polymer containing a coating on at least one surface thereof, which coating comprises from about 0.05 to about 5.0 mils of a degradable water-insoluble polymer.
Claim 25
Dependent Claim
35 words
A disposable article or substrate made from a water soluble polymer containing a coating on at least one surface thereof, which coating comprises from about 0.05 to about 5.0 mils of a degradable water-insoluble polymer.
Claim 26
Dependent Claim
19 words
A disposable article or substrate as defined in claim 21, wherein the water soluble polymer is a poly(ethylene) oxide.
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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) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |