US5169622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair and skin care compositions containing discrete microdroplets of an oil in water stabilized by in situ copolymerization of a water-soluble vinyl monomer and a water-soluble acryl comonomer
Assignee: ISP CAPITAL Inc
•
Filing: 1991-01-08
•
Granted: 1992-12-08
•
Expires: 2011-01-08
Abstract
Abstract What is provided herein are hair and skin care compositions containing discrete microdroplets of an oil in water stabilized by in situ polymerization of a water-soluble vinyl monomer and a water-soluble acryl comonomer. The stabilized microdroplets are prepared by dispersing the oil in water, adding the water-soluble vinyl monomer, preferably vinylpyrrolidone, with the comonomer, and copolymerizing the monomer and comonomer in situ such that the oil is stabilized in the resulting copolymer solution as discrete microdroplets.
Inventors
- 👤 Stephen L. Kopolow
- 👤 William J. Burlant
- 👤 Michael W. Helioff
- 👤 Carmen D. Bires
- 👤 Robert B. Login
- 👤 Mohammed Tazi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; B01J13/18; A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61K8/18; A61K8/72; A61K8/81; A61K8/817; A61K8/8176; A61K8/84; A61K8/89; A61K8/891; A61Q; A61Q17/00; A61Q17/04; A61Q19/00; A61Q19/007; A61Q5/00; A61Q5/12; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61Q19/008; A61Q19/10
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
37 words
A hair or skin care composition containing a stabilized cosmetically-active product obtained by in situ copolymerization of a water-soluble vinyl monomer and an acryl comonomer in the presence of discrete microdroplets of a cosmetically-active oil in water.
Claim 2
Dependent Claim
37 words
A hair or skin care composition containing a stabilized cosmetically-active product obtained by in situ copolymerization of a water-soluble vinyl monomer and an acryl comonomer in the presence of discrete microdroplets of a cosmetically-active oil in water.
Claim 3
Dependent Claim
25 words
A hair or skin care composition according to claim 1 wherein said water-soluble vinyl monomer is vinyl pyrrolidone and said acryl comonomer is methacrylamidopropyltrimethylammonium chloride.
Claim 4
Dependent Claim
34 words
A hair or skin care composition according to claim 2 wherein the weight ratio of the vinylpyrrolidone monomer to silicone in the copolymerization mixture is about 95:5 to 5:95, respectively, on a weight basis.
Claim 5
Dependent Claim
32 words
A hair or skin care composition according to claim 2 wherein the Brookfield viscosity of the stabilized oil in water product obtained upon in situ copolymerization is about 3,000 to 100,000 cps.
Claim 6
Dependent Claim
38 words
A hair or skin care composition according to claim 1 wherein said stabilized microdroplets are homogeneously distributed throughout the resulting copolymer solution and said cosmetically-active oil is a silicone having a viscosity between about 5 to 600,000 cs.
Claim 7
Dependent Claim
28 words
A hair or skin care composition according to claim 5 wherein said silicone is a non-volatile polyalkyl siloxane, a polyaryl siloxane, a polyalkylaryl siloxane or a polyether siloxane.
Claim 8
Dependent Claim
16 words
A skin care composition according to claim 6 wherein said silicone oil is a polydimethyl siloxane.
Claim 9
Dependent Claim
28 words
A hair or skin care composition according to claim 1 wherein said product is present in an amount of about 0.1 to 25 weight percent of the composition.
Claim 10
Dependent Claim
23 words
A hair or skin care composition according to claim 8 wherein said amount is about 1 to 10 weight percent of the composition.
Claim 11
Dependent Claim
25 words
A conditioning hair care composition according to claim 1 wherein said water-soluble vinyl monomer is vinyl pyrrolidone and said acryl comonomer is methylacrylamidopropyltrimethyl ammonium chloride.
Claim 12
Dependent Claim
15 words
A skin care composition according to claim 1 which is a lotion for dry skin.
Claim 13
Dependent Claim
15 words
A skin care composition according to claim 1 which is a cationic mousse hand/body lotion.
Claim 14
Dependent Claim
13 words
A skin care composition according to claim 1 which is a sunscreen formulation.
Claim 15
Dependent Claim
13 words
A skin care composition according to claim 1 which is a moisturizing lotion.
Claim 16
Dependent Claim
46 words
A conditioning hair care composition comprising (a) a stabilized silicone product obtained by in situ copolymerization of a water-soluble vinyl monomer and a water-soluble acryl comonomer in the presence of discrete micordroplets of a silicone in water, (b) a surfactant, and the balance being (c) water.
Claim 17
Dependent Claim
46 words
A conditioning hair care composition comprising (a) a stabilized silicone product obtained by in situ copolymerization of a water-soluble vinyl monomer and a water-soluble acryl comonomer in the presence of discrete micordroplets of a silicone in water, (b) a surfactant, and the balance being (c) water.
Claim 18
Dependent Claim
13 words
A hair care composition according to claim 15 which is a conditioner composition.
Claim 19
Dependent Claim
14 words
A hair care composition according to claim 15 which is an aerosol conditioning mousse.
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) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |