US4166051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ostomy composition
Assignee: ER Squibb and Sons LLC
•
Filing: 1977-06-08
•
Granted: 1979-08-28
•
Expires: 1997-06-08
Abstract
Abstract A composition adapted for use around the stoma consisting of a homogeneous mixture of a pressure sensitive adhesive component, mineral oil, and hydrocolloid gums or cohesive strengthening agents or a mixture of hydrocolloid gums and cohesive strengthening agents. By controlling the amount of mineral oil the resulting composition can be easily shaped according to the particular need.
Inventors
- 👤 Rudolfo D. Cilento
- 👤 Anthony L. La Via
- 👤 James L. Chen
- 👤 John A. Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:37
CPC Classifications
C; C08; C08L; C08L5/00; C08L5/14; A; A61; A61F; A61F5/00; A61F5/44; A61F5/443; A61L; A61L24/00; A61L24/001; A61L24/0031; A61L24/04; A61L24/043; A61L2400/00; A61L2400/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
218 words
A composition adapted for medicinal use and having a consistency which permits it to be shaped by hand comprising a homogeneous mixture of mineral oil and a premix in a ratio of from about 1 to 10 to about 3.5 to 10 on a solids weight basis; wherein said premix comprises a homogeneous mixture of (A) from about 40% to about 60% by weight of a mixture of a pressure sensitive adhesive and an optional elastomer wherein said adhesive is a low molecular weight polyisobutylene and said elastomer if present is a medium molecular weight polyisobutylene or butyl rubber at up to about 30% by weight of said low molecular weight polyisobutylene and (B) from about 40% to about 60% by weight of a second component which is a mixture of one or more hydrocolloid gums, a cohesive strengthening agent, or a mixture of hydrocolloid gums and cohesive strengthening agent wherein said hydrocolloid gums are up to about 40% by weight of guar gum, locust bean gum, or mixtures thereof and from 0% to about 25% by weight of pectin, gum karaya, or mixtures thereof; and wherein said cohesive strengthening agent is finely divided cellulose, finely divided substantially water insoluble cross-linked dextran, finely divided substantially water insoluble sodium carboxymethylcellulose, or finely divided substantially water insoluble starch-acrylonitrile graft copolymer.
Claim 2
Dependent Claim
218 words
A composition adapted for medicinal use and having a consistency which permits it to be shaped by hand comprising a homogeneous mixture of mineral oil and a premix in a ratio of from about 1 to 10 to about 3.5 to 10 on a solids weight basis; wherein said premix comprises a homogeneous mixture of (A) from about 40% to about 60% by weight of a mixture of a pressure sensitive adhesive and an optional elastomer wherein said adhesive is a low molecular weight polyisobutylene and said elastomer if present is a medium molecular weight polyisobutylene or butyl rubber at up to about 30% by weight of said low molecular weight polyisobutylene and (B) from about 40% to about 60% by weight of a second component which is a mixture of one or more hydrocolloid gums, a cohesive strengthening agent, or a mixture of hydrocolloid gums and cohesive strengthening agent wherein said hydrocolloid gums are up to about 40% by weight of guar gum, locust bean gum, or mixtures thereof and from 0% to about 25% by weight of pectin, gum karaya, or mixtures thereof; and wherein said cohesive strengthening agent is finely divided cellulose, finely divided substantially water insoluble cross-linked dextran, finely divided substantially water insoluble sodium carboxymethylcellulose, or finely divided substantially water insoluble starch-acrylonitrile graft copolymer.
Claim 3
Dependent Claim
75 words
The composition of claim 1 wherein said pressure sensitive adhesive is a polyisobutylene having a viscosity average molecular weight of from about 36,000 to 58,000 on the Flory scale and said elastomer is a butyl rubber having a viscosity average molecular weight of about 425,000 on the Flory scale, said polyisobutylene and said butyl rubber being combined in a ratio of from about 3 to 1 to about 5 to 1 on a weight basis.
Claim 4
Dependent Claim
39 words
The composition of claim 2 wherein said hydrocolloid gums if present are up to 40% by weight guar gum and from 0% to about 25% by weight pectin and said cohesive strengthening agent if present is purified wood cellulose.
Claim 5
Dependent Claim
105 words
The composition of claim 3 wherein said premix comprises a homogeneous mixture of (A) from about 45% to about 55% by weight of a mixture of said low molecular weight polyisobutylene and said butyl rubber combined in a ratio of about 4 to 1 on a weight basis and (B) from about 45% to 55% by weight of a second component which is a mixture of hydrocolloid gums, purified wood cellulose, or a mixture of hydrocolloid gums and purified wood cellulose wherein said hydrocolloid gums are up to about 40% by weight of guar gum and from 0% to about 25% by weight of pectin.
Claim 6
Dependent Claim
70 words
The composition of claim 4 wherein said premix comprises about 40% by weight of polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 45,000 on the Flory scale, about 10% by weight of butyl rubber having a viscosity average molecular weight of about 425,000 on the Flory scale, about 30% by weight of guar gum, and about 20% by weight of finely divided purified wood cellulose.
Claim 7
Dependent Claim
27 words
The composition of claim 5 wherein said mineral oil and said premix are combined in a ratio of about 1 to 4 on a solids weight basis.
Claim 8
Dependent Claim
66 words
The composition of claim 4 wherein said premix comprises about 40% by weight of polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 45,000 on the Flory scale, about 10% by weight of butyl rubber having a viscosity average molecular weight of about 425,000 on the Flory scale, about 30% by weight of guar gum, and about 20% by weight of pectin.
Claim 9
Dependent Claim
27 words
The composition of claim 7 wherein said mineral oil and said premix are combined in a ratio of about 1 to 4 on a solids weight basis.
Claim 10
Dependent Claim
63 words
The composition of claim 4 wherein said premix comprises about 40% by weight of polyisobutylene having a viscosity average molecular weight of from about 36,000 to about 45,000 on the Flory scale, about 10% by weight of butyl rubber having a viscosity average molecular weight of about 425,000 on the Flory scale, and about 50% by weight of finely divided purified wood cellulose.
Claim 11
Dependent Claim
28 words
The composition of claim 9 wherein said mineral oil and said premix are combined in a ratio of from about 3.5 to 10 on a solids weight basis.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-27 | 1983-02-26 | 1983-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-27 | 1987-02-26 | 1987-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-27 | 1991-02-26 | 1991-08-28 | $7700.00 | Window Closed / Lapsed |