US4087555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin cream containing milk protein
Assignee: Parbel of Florida Inc
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Filing: 1975-09-08
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Granted: 1978-05-02
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Expires: 1995-09-08
Abstract
Abstract A skin cream composition having an oil phase, a water phase, and an encapsulated active base. The water phase includes hectorite clay and a peptizer for the clay. The encapsulated active base includes hectorite clay, a peptizer for the clay, and a polar group affording compound.
Inventors
- 👤 Gabriel Barnett
- 👤 Nathan Gershaw
- 👤 Jack J. Mausner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:29
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/26; A61K8/02; A61K8/11; A61Q; A61Q19/00; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61Q17/00; A61Q17/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A skin cream composition comprising an oil phase, a water phase, and an encapsulated active base; (A) said oil phase comprising, in parts by weight, 1.5-3.5 parts of an emulsifier, 1.25-2.5 parts of an emollient, 8.0-14.0 parts of a lubricant, 0.5-4.0 parts of a dispersing agent, and 0.3-2.0 parts of a non-ionic surfactant; (B) said water phase comprising, in parts by weight of up to about 5 parts of hectorite clay, 0.2-1.0 parts of a peptizer for said clay, up to 5.0 parts of a humectant, 1.2 parts of milk protein and the balance water; and (C) said encapsulated active base comprising, in parts by weight, 0.45-1.8 parts of hectorite clay, 0.05-2.0 parts of a polar group affording organic compound (1) characterized as being reactable with said hectorite clay to form water-insoluble particles having a size above colloidal dimensions when added to an aqueous colloidal solution of synthetic hectorite clay and tetrasodium pyrophosphate and (2) selected from the group consisting of a simple organic compound having at least one polar group characterized by insubstantial solubility in water at ordinary temperatures and (3) and organic hydrophilic colloid, 0.2-1 parts of a peptizer for said clay and the balance water.
Claim 2
Dependent Claim
198 words
A skin cream composition comprising an oil phase, a water phase, and an encapsulated active base; (A) said oil phase comprising, in parts by weight, 1.5-3.5 parts of an emulsifier, 1.25-2.5 parts of an emollient, 8.0-14.0 parts of a lubricant, 0.5-4.0 parts of a dispersing agent, and 0.3-2.0 parts of a non-ionic surfactant; (B) said water phase comprising, in parts by weight of up to about 5 parts of hectorite clay, 0.2-1.0 parts of a peptizer for said clay, up to 5.0 parts of a humectant, 1.2 parts of milk protein and the balance water; and (C) said encapsulated active base comprising, in parts by weight, 0.45-1.8 parts of hectorite clay, 0.05-2.0 parts of a polar group affording organic compound (1) characterized as being reactable with said hectorite clay to form water-insoluble particles having a size above colloidal dimensions when added to an aqueous colloidal solution of synthetic hectorite clay and tetrasodium pyrophosphate and (2) selected from the group consisting of a simple organic compound having at least one polar group characterized by insubstantial solubility in water at ordinary temperatures and (3) and organic hydrophilic colloid, 0.2-1 parts of a peptizer for said clay and the balance water.
Claim 3
Dependent Claim
63 words
A composition as claimed in claim 1, wherein: (A) said oil phase comprises glyceryl monostearate, cetyl alcohol, 2-ethylhexyl palmitate, isostearic acid, polyoxyethylene stearate, and sorbitan stearate; (B) said water phase comprises said hectorite clay, said peptizer, propylene glycol, triethanolamine, said milk protein, and said water; and (C) said encapsulated active base comprises said hectorite clay, hydroxyethyl cellulose, casein, said peptizer, and said water.
Claim 4
Dependent Claim
66 words
A composition as claimed in claim 2, wherein said hectorite clay is synthetic hectorite clay, said synthetic hectorite clay is present in said water phase in a gel-forming amount of up to about 5 percent by weight, said peptizer is sodium acid pyrophosphate and said sodium acid pyrophosphate is present in said water phase in an amount of about 0.2-1.0 percent by weight of said clay.
Claim 5
Dependent Claim
26 words
A composition as claimed in claim 2, wherein said clay is synthetic hectorite clay and the weight ratio of clay to hydroxyethyl cellulose is about 1-2:2-3.
Claim 6
Dependent Claim
140 words
A composition as claimed in claim 2, comprising: (A) an oil phase consisting essentially of, in parts by weight: ______________________________________
glyceryl monostearate 1.5 - 3.5
cetyl alcohol 1.25 - 2.5
2-ethylhexyl palmitate 8.00 - 14.00
isostearic acid 0.5 - 4.00
polyoxyethylene stearate
0.2 - 1.50
sorbitan tristearate 0.1 - 0.4;
______________________________________ (B) a water phase consisting essentially of, in parts by weight, ______________________________________
synthetic hectorite clay
1.80 - 3.96
sodium acid pyrophosphate
propylene glycol 0.30
a preservative effective amount
triethanolamine 1.00
milk protein 1.25
water balance to make
100; and
______________________________________ (C) about 0.1 part of an encapsulated active base which consists essentially of, in percent by weight, ______________________________________
hydroxyethyl cellulose 0.5 - 2.5
synthetic hectorite clay
0.45 - 1.8
sodium acid pyrophosphate
0.05 - 2.00
coloring 5 -10
casein 0.5 - 3.00
a preservative effective amount
water balance
______________________________________
References Cited (Backward Citations)
US3340153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |