Patent US2221105A successfully refreshed from Google Patents.
US4192785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ostomy adhesive
Assignee: ER Squibb and Sons LLC
•
Filing: 1977-06-08
•
Granted: 1980-03-11
•
Expires: 1997-06-08
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 21:15
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; A; A61; A61F; A61F5/00; A61F5/44; A61F5/443; A61L; A61L24/00; A61L24/04; A61L24/043; A61L2400/00; A61L2400/14; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
204 words
An adhesive composition for medicinal purposes 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 carboxymethylcellulose, or a finely divided substantially water insoluble starch-acrylonitrile graft polymer.
Claim 2
Dependent Claim
204 words
An adhesive composition for medicinal purposes 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 carboxymethylcellulose, or a finely divided substantially water insoluble starch-acrylonitrile graft polymer.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the cohesive strengthening agent is from about 2% to about 12% cotton.
Claim 4
Dependent Claim
76 words
The composition of claim 2 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
58 words
The composition of claim 3 comprising about 5% cottom, 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
22 words
The composition of claim 1 wherein the cohesive strengthening agent is from about 10% to about 30% finely divided purified wood cellulose.
Claim 7
Dependent Claim
74 words
The composition of claim 5 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
60 words
The composition of claim 6 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.
References Cited (Backward Citations)
US3379662A
Cited
US3490444A
Cited
US3908658A
Cited
US3897780A
Cited
US3980084A
Cited
US4095599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |