Patent US3848605A successfully refreshed from Google Patents.
US4253460A
Expired / Lapsed
US
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Ostomy adhesive
Assignee: ER Squibb and Sons LLC
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Filing: 1979-07-27
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Granted: 1981-03-03
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Expires: 1999-07-27
Abstract
Abstract An adhesive composition adapted for use with an ostomy appliance consisting of a mixture of a hydrocolloid gum, a pressure sensitive adhesive, and a cohesive strengthening agent. The cohesive strengthening agent is either an inert natural or synthetic fibrous material, finely divided cellulose, a cross-linked dextran, a cross-linked carboxymethylcellulose, or a starch-acrylonitrile graft copolymer.
Inventors
- 👤 James L. Chen
- 👤 Rudolfo D. Cilento
- 👤 John A. Hill
- 👤 Anthony L. La Via
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
A; A61; A61L; A61L24/00; A61L24/04; A61L24/043; A61L2400/00; A61L2400/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
222 words
A skin barrier comprising an adhesive layer having a thin continous or discontinuous polymeric film laminated to one surface of the adhesive, said adhesive consisting essentially of a substantially homogenous mixture on a percent weight basis of from about 15% to about 40% of guar gum, locust bean gum, or mixtures thereof; from 0% to about 25% of pectin, gum karaya, or mixtures thereof provided that the total amount of guar gum, locust bean gum, gum karaya and pectin is from about 20% to about 55%; from about 40% to about 60% of a mixture of a low molecular weight polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 58,000 on the Flory scale and butyl rubber having a viscosity average molecular weight of from about 300,000 to about 450,000 on the Flory scale, said polyisobutylene and said butyl rubber combined in a ratio of from about 3 to 1 to about 5 to 1 on a weight basis; and as a cohesive strengthening agent from about 2% to about 12% of an inert natural or synthetic fibrous material or from about 10% to about 30% of a finely divided cellulose, a finely divided substantially water insoluble cross-linked dextran, a finely divided substantially water insoluble cross-linked sodium carboxymethyl-cellulose, or a finely divided substantially water insoluble starch-acrylonitrile graft polymer.
Claim 2
Dependent Claim
222 words
A skin barrier comprising an adhesive layer having a thin continous or discontinuous polymeric film laminated to one surface of the adhesive, said adhesive consisting essentially of a substantially homogenous mixture on a percent weight basis of from about 15% to about 40% of guar gum, locust bean gum, or mixtures thereof; from 0% to about 25% of pectin, gum karaya, or mixtures thereof provided that the total amount of guar gum, locust bean gum, gum karaya and pectin is from about 20% to about 55%; from about 40% to about 60% of a mixture of a low molecular weight polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 58,000 on the Flory scale and butyl rubber having a viscosity average molecular weight of from about 300,000 to about 450,000 on the Flory scale, said polyisobutylene and said butyl rubber combined in a ratio of from about 3 to 1 to about 5 to 1 on a weight basis; and as a cohesive strengthening agent from about 2% to about 12% of an inert natural or synthetic fibrous material or from about 10% to about 30% of a finely divided cellulose, a finely divided substantially water insoluble cross-linked dextran, a finely divided substantially water insoluble cross-linked sodium carboxymethyl-cellulose, or a finely divided substantially water insoluble starch-acrylonitrile graft polymer.
Claim 3
Dependent Claim
19 words
The skin barrier of claim 1 wherein the cohesive strengthening agent is from about 2% to about 12% cotton.
Claim 4
Dependent Claim
79 words
The skin barrier of claim 2 said adhesive comprising from about 15% to about 40% guar gum; from 0% to 25% pectin provided that the total amount of guar gum and pectin is from about 35% to about 55%; and from about 45% to about 55% of the mixture of said low molecular weight polyisobutylene and said butyl rubber wherein the ratio of low molecular weight polyisobutylene to butyl rubber is about 4 to 1 on a weight basis.
Claim 5
Dependent Claim
61 words
The skin barrier of claim 3 said adhesive comprising about 5% cotton, about 28.5% guar gum, about 19% pectin, about 47.5% of a 4 to 1 mixture of polyisobutylene of a viscosity average molecular weight of about 36,000 to about 45,000 on the Flory scale and butyl rubber of a viscosity average molecular weight of about 425,000 on the Flory scale.
Claim 6
Dependent Claim
23 words
The skin barrier of claim 1 wherein the cohesive strengthening agent is from about 10% to about 30% finely divided purified wood cellulose.
Claim 7
Dependent Claim
77 words
The skin barrier of claim 5 said adhesive comprising from about 15% to about 40% guar gum; from 0% to 25% pectin provided that the total amount of guar gum and pectin is from about 20% to 45%; and from about 45% to about 55% of said mixture of low molecular weight polyisobutylene and said butyl rubber wherein the ratio of low molecular weight polyisobutylene to butyl rubber is about 4 to 1 on a weight basis.
Claim 8
Dependent Claim
63 words
The skin barrier of claim 6 said adhesive comprising about 20% finely divided purified wood cellulose, about 30% guar gum, and about 50% of a 4 to 1 mixture of polyisobutylene of a viscosity average molecular weight of about 36,000 to about 45,000 on the Flory scale and butyl rubber of a viscosity average molecular weight or about 425,000 on the Flory scale.
Claim 9
Dependent Claim
214 words
An ostomy bag having a faceplate to which a layer of adhesive is permanently bonded, said adhesive consisting essentially of a substantially homogenous mixture on a percent weight basis of from about 15% to about 40% of guar gum, locust bean gum, or mixtures thereof; from 0% to about 25% of pectin, gum karaya, or mixtures thereof provided that the total amount of guar gum, locust bean gum, gum karaya and pectin is from about 20% to about 55%; from about 40% to about 60% of a mixture of a low molecular weight polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 58,000 on the Flory scale and butyl rubber having a viscosity average molecular weight from about 300,000 to about 450,000 on the Flory scale, said polyisobutylene and said butyl rubber combined in a ratio of from about 3 to 1 to about 5 to 1 on a weight basis; and as a cohesive strengthening agent from about 2% to about 12% of an inert natural or synthetic fibrous material or from about 10% to about 30% of a finely divided cellulose, a finely divided substantially water insoluble cross-linked dextran, a finely divided substantially water insoluble cross-linked sodium carboxymethylcellulose, or a finely divided substantially water insoluble starch-acrylonitrile graft polymer.
Claim 10
Dependent Claim
214 words
An ostomy bag having a faceplate to which a layer of adhesive is permanently bonded, said adhesive consisting essentially of a substantially homogenous mixture on a percent weight basis of from about 15% to about 40% of guar gum, locust bean gum, or mixtures thereof; from 0% to about 25% of pectin, gum karaya, or mixtures thereof provided that the total amount of guar gum, locust bean gum, gum karaya and pectin is from about 20% to about 55%; from about 40% to about 60% of a mixture of a low molecular weight polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 58,000 on the Flory scale and butyl rubber having a viscosity average molecular weight from about 300,000 to about 450,000 on the Flory scale, said polyisobutylene and said butyl rubber combined in a ratio of from about 3 to 1 to about 5 to 1 on a weight basis; and as a cohesive strengthening agent from about 2% to about 12% of an inert natural or synthetic fibrous material or from about 10% to about 30% of a finely divided cellulose, a finely divided substantially water insoluble cross-linked dextran, a finely divided substantially water insoluble cross-linked sodium carboxymethylcellulose, or a finely divided substantially water insoluble starch-acrylonitrile graft polymer.
Claim 11
Dependent Claim
93 words
The ostomy bag of claim 8, said adhesive consisting essentially of from about 15% to about 40% guar gum; from 0% to 25% pectin provided that the total amount of guar gum and pectin is from about 35% to about 55%; from about 45% to about 55% of the mixture of said low molecular weight polyisobutylene and said butyl rubber wherein the ratio of low molecular weight polyisobutylene to butyl rubber is about 4 to 1 on a weight basis; and as the cohesive strengthening agent from about 2% to about 12% cotton.
Claim 12
Dependent Claim
63 words
The ostomy bag of claim 9, said adhesive consisting essentially of about 5% cotton, about 28.5% guar gum, about 19% pectin, about 47.5% of a 4 to 1 mixture of polyisobutylene of a viscosity average molecular weight of about 36,000 to about 45,000 on the Flory scale and butyl rubber of a viscosity average molecular weight of about 425,000 on the Flory scale.
Claim 13
Dependent Claim
95 words
The ostomy bag of claim 8, said adhesive consisting essentially of from about 15% to about 40% guar gum; from 0% to 25% pectin provided that the total amount of guar gum and pectin is from about 20% to 45%; from about 45% to about 55% of said mixture of low molecular weight polyisobutylene and said butyl rubber wherein the ratio of low molecular weight polyisobutylene to butyl rubber is about 4 to 1 on a weight basis; and as the cohesive strengthening agent from about 10% to about 30% finely divided purified wood cellulose.
Claim 14
Dependent Claim
65 words
The ostomy bag of claim 11, said adhesive consisting essentially of about 20% finely divided purified wood cellulose, about 30% guar gum, and about 50% or a 4 to 1 mixture of polyisobutylene of a viscosity average molecular weight of about 36,000 to about 45,000 on the Flory scale and butyl rubber of a viscosity average molecular weight or about 425,000 on the Flory scale.
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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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |