Patent US4246257A successfully refreshed from Google Patents.
US4246257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cosmetic degreasing and matting composition
Assignee: Beecham Group PLC
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Filing: 1979-02-02
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Granted: 1981-01-20
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Expires: 1999-02-02
Abstract
Abstract Skin treatment product for greasy or oily skin comprising an unpigmented oil-in-water or water-in-oil emulsion having dispersed therein 3 to 10% by weight of spherical polymer or copolymer particles having an average size of 5 to 15 microns. The polymer or copolymer particles are cross-linked polystyrene, polymethylmethacrylate or polyethylene microspheres. The oil of the emulsion is a volatile organic liquid in the amount of 1 to 30% of the weight of the emulsion and may be a silicone or silicon glycol.
Inventors
- 👤 Thomas J. Elliott
- 👤 David Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:32
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; A61K8/025; A61K8/04; A61K8/06; A61K8/18; A61K8/72; A61K8/81; A61K8/8105; A61K8/8111; A61Q; A61Q19/00; A61Q19/008; A61K2800/00; A61K2800/40; A61K2800/60; A61K2800/65; A61K2800/654
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
73 words
A skin degreasing and matting product comprising from 3 to 10% by weight of composition of substantially spherical particles of a polymer or copolymer selected from the group consisting of polyethylene, polystyrene and polymethylmethacrylate, said particles having an average size of from 5 to 15 microns and being dispersed in an unpigmented aqueous emulsion of a volatile, cosmetically acceptable oil in an amount of from 1 to 30% by weight of said emulsion.
Claim 2
Dependent Claim
73 words
A skin degreasing and matting product comprising from 3 to 10% by weight of composition of substantially spherical particles of a polymer or copolymer selected from the group consisting of polyethylene, polystyrene and polymethylmethacrylate, said particles having an average size of from 5 to 15 microns and being dispersed in an unpigmented aqueous emulsion of a volatile, cosmetically acceptable oil in an amount of from 1 to 30% by weight of said emulsion.
Claim 3
Dependent Claim
18 words
The product of claim 1 containing from 3 to 5% by weight of the polymer or copolymer particles.
Claim 4
Dependent Claim
21 words
The product of claim 1 wherein the polymer or copolymer particles have an average size of from 5 to 7 microns.
Claim 5
Dependent Claim
18 words
The product of claim 1 wherein substantially none of the polymer or copolymer particles exceed about 15 microns.
Claim 6
Dependent Claim
16 words
The product of claim 1 wherein the volatile organic oil is a silicone or silicone glycol.
Claim 7
Dependent Claim
61 words
A skin degreasing and matting product comprising from 3 to 10% by weight of the composition of non-swelling polyethylene microspheres of average particle size of 5 to 7 microns, with substantially no particles greater than 15 microns, dispersed in an aqueous emulsion of a volatile liquid silicone or silicone glycol in an amount of 1 to 30% by weight of emulsion.
Claim 8
Dependent Claim
61 words
A skin degreasing and matting product comprising from 3 to 10% by weight of the composition of non-swelling polyethylene microspheres of average particle size of 5 to 7 microns, with substantially no particles greater than 15 microns, dispersed in an aqueous emulsion of a volatile liquid silicone or silicone glycol in an amount of 1 to 30% by weight of emulsion.
References Cited (Backward Citations)
US3196079A
Cited
GB926862A
Cited
GB1141994A
Cited
DE2021677A1
Cited
US3846550A
Cited
US3862310A
Cited
US3823114A
Cited
SU552083A1
Cited
US4151272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |