Patent US4837011A successfully refreshed from Google Patents.
US4837011A
Expired / Lapsed
US
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Cosmetic powder employing spherical silica particles
Assignee: Revlon Consumer Products LLC
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Filing: 1988-10-11
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Granted: 1989-06-06
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Expires: 2008-10-11
Abstract
Abstract Disclosed is a novel cosmetic powder composition exhibiting superior smoothness and adhesion to the skin, comprising in its preferred version a combination of ultrafine silica, talc coated with acylamino acid, sericite, polyethylene, and a novel binder comprising a combination of polydimethylsiloxane, distearyl malate and pentahydrosqualene.
Inventors
- 👤 Ralph A. Macchio
- 👤 Ivonne Brown
- 👤 Marlene Tietjen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:53
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/37; A61K8/19; A61K8/25; A61K8/26; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61Q; A61Q1/00; A61Q1/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
115 words
A cosmetic powder composition comprising: (a) essentially spherical silica having an average particle size of 6 to 20 microns, in an amount up to 15 wt.% of the composition; (b) 25 to 80 parts by weight of material selected from the group consisting of sericite, sericite coated with mineral oil or polydimethylsiloxane having a viscosity of 5 to 100 centistokes wherein the coating comprises up to 5% by weight of the sericite and mixtures thereof; (c) 1 to 5 parts by weight of polydimethylsiloxane having a viscosity of 5 to 100 centistokes; and (d) 1 to 5 parts by weight of material selected from the group consisting of isostearyl malate, diisostearyl malate, and mixtures thereof.
Claim 2
Dependent Claim
115 words
A cosmetic powder composition comprising: (a) essentially spherical silica having an average particle size of 6 to 20 microns, in an amount up to 15 wt.% of the composition; (b) 25 to 80 parts by weight of material selected from the group consisting of sericite, sericite coated with mineral oil or polydimethylsiloxane having a viscosity of 5 to 100 centistokes wherein the coating comprises up to 5% by weight of the sericite and mixtures thereof; (c) 1 to 5 parts by weight of polydimethylsiloxane having a viscosity of 5 to 100 centistokes; and (d) 1 to 5 parts by weight of material selected from the group consisting of isostearyl malate, diisostearyl malate, and mixtures thereof.
Claim 3
Dependent Claim
28 words
The composition of claim 1 and further comprising up to 5 wt.% of one or more waxes selected from the group consisting of candelilla, microcrystalline wax, and carnauba.
Claim 4
Dependent Claim
84 words
The composition of claim 1 and further comprising 20 to 70 parts by weight of talc coated with 0.5 to 10 percent, by weight of the talc, of one or more metal salts of an N-acylamino acid having formula (I), (II), or (III): (RCO-NHCH(COO)CH.sub.2 CH.sub.2 COO).sub.1-3 M.sub.1-2 (I) (RCO-N(CH.sub.3)CH.sub.2 CH.sub.2 COO).sub.1-4 M (II) (RCO-N(CH.sub.3)CH.sub.2 COO).sub.1-4 M (III) wherein RCO- denotes a residue of capric, lauric, myristic, palmitic, stearic, or oleic acid; and M is an atom of aluminum, magnesium, calcium, zinc, zirconium, or titanium.
Claim 5
Dependent Claim
27 words
The composition of claim 1 and further comprising 1 to 5 parts by weight of material selected from the group consisting of squalene, pentahydrosqualene, and mixtures thereof.
Claim 6
Dependent Claim
16 words
The composition of claim 1 and further comprising 5 to 15 parts by weight of polyethylene.
Claim 7
Dependent Claim
104 words
The composition of claim 1 and further comprising 20 to 70 parts by weight of talc coated with 0.5 to 10 percent, by weight of the talc, of one or more metal salts of an N-acylamino acid having formula (I), (II), or (III): (RCO-NHCH(COO)CH.sub.2 CH.sub.2 COO).sub.1-3 M.sub.1-2 (I) (RCO-N(CH.sub.3)CH.sub.2 CH.sub.2 COO).sub.1-4 M (II) (RCO-N(CH.sub.3)CH.sub.2 COO).sub.1-4 M (III) wherein RCO- denotes a residue of capric, lauric, myristic, palmitic, stearic, or oleic acid; and M is an atom of aluminum, magnesium, calcium, zinc, zirconium, or titanium; and 1 to 5 parts by weight of material selected from the group consisting of squalene, pentahydrosqualene, and mixtures thereof.
Claim 8
Dependent Claim
93 words
The composition of claim 1 and further comprising 20 to 70 parts by weight of talc coated with 0.5 to 10 percent, by weight of the talc, of one or more metal salts of an N-acylamino acid having formula (I), (II), or (III): (RCO-NHCH(COO)CH.sub.2 CH.sub.2 COO).sub.1-3 M.sub.1-2 (I) (RCO-N(CH.sub.3)CH.sub.2 CH.sub.2 COO).sub.1-4 M (II) (RCO-N(CH.sub.3)CH.sub.2 COO).sub.1-4 M (III) wherein RCO- denotes a residue of capric, lauric, myristic, palmitic, stearic, or oleic acid; and M is an atom of aluminum, magnesium, calcium, zinc, zirconium, or titanium; and 5 to 15 parts by weight of polyethylene.
Claim 9
Dependent Claim
36 words
The composition of claim 1 and further comprising 1 to 5 parts by weight of material selected from the group consisting of squalene, pentahydrosqualene, and mixtures thereof; and 5 to 15 parts by weight of polyethylene.
Claim 10
Dependent Claim
112 words
The composition of claim 1 and further comprising 20 to 70 parts by weight of talc coated with 0.5 to 10 percent, by weight of the talc, of one or more metal salts of an N-acylamino acid having formula (I), (II), or (III): (RCO-NHCH(COO)CH.sub.2 CH.sub.2 COO).sub.1-3 M.sub.1-2 (I) (RCO-N(CH.sub.3)CH.sub.2 CH.sub.2 COO).sub.1-4 M (II) (RCO-N(CH.sub.3)CH.sub.2 COO).sub.1-4 M (III) wherein RCO- denotes a residue of capric, lauric, myristic, palmitic, stearic, or oleic acid; and M is an atom of aluminum, magnesium, calcium, zinc, zirconium, or titanium; 1 to 5 parts by weight of material selected from the group consisting of squalene, pentahydrosqualene, and mixtures thereof; and 5 to 15 parts by weight of polyethylene.
References Cited (Backward Citations)
US4606914A
Cited
JPS61174103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |