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US4832944A
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US
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Nail enamel containing silicone-coated pigments
Assignee: Revlon Consumer Products LLC
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Filing: 1986-12-03
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Granted: 1989-05-23
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Expires: 2006-12-03
Abstract
Abstract Pigmented nail enamels in which the pigment is coated with an organo-polysiloxane exhibit greatly reduced settling and migration of the pigment.
Inventors
- 👤 Robert L. Socci
- 👤 Anatoly A. Ismailer
- 👤 Anthony Castrogiovanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:32
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61Q; A61Q3/00; A61Q3/02; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/42; A61K2800/43
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
77 words
In a nail enamel which contains a plurality of pigments, including at least one inorganic pigment, and a liquid base and suspending agent for holding pigment in suspension, the improvement wherein said inoganic pigment has a coating consisting of organically substituted polysiloxanes which are chemically bonded to the pigment surface, wherein said enamel exhibits reduced settling and migration of the pigment contained therein compared to an enamel which is identical except for lacking said chemically bonded coating.
Claim 2
Dependent Claim
77 words
In a nail enamel which contains a plurality of pigments, including at least one inorganic pigment, and a liquid base and suspending agent for holding pigment in suspension, the improvement wherein said inoganic pigment has a coating consisting of organically substituted polysiloxanes which are chemically bonded to the pigment surface, wherein said enamel exhibits reduced settling and migration of the pigment contained therein compared to an enamel which is identical except for lacking said chemically bonded coating.
Claim 3
Dependent Claim
21 words
The nail enamel of claim 1 wherein said coated pigment comprises up to about 10 wt. % of the nail enamel.
Claim 4
Dependent Claim
21 words
The nail enamel of claim 1 wherein said coated pigment comprises up to about 2 wt. % of the nail enamel.
Claim 5
Dependent Claim
70 words
The nail enamel of claim 1 wherein said coating, when bonded to said pigment surface, has 1-1000 (Si--O) units in whih the remaining functional sites of each Si atom are substituted with hydrogen, methyl, C 2 -C 30 alkyl, C 2 -C 30 alkenyl, or phenyl, provided that at least one Si atom of the polysiloxanes is chemically bonded to an oxygen atom which is bonded to the pigment surface.
Claim 6
Dependent Claim
35 words
The nail enamel of claim 1 wherein the inorganic pigment is selected from the group consisting of iron oxides, titanated mica, iron oxide coated mica, titanium dioxide, ultramarine, chromium oxide, chromium hydroxide, and manganese violet.
Claim 7
Dependent Claim
74 words
In a nail enamel comprising a plurality of inorganic pigments suspended in a liquid base which comprises nitrocellulose, a solvent, and a suspending agent, the improvement wherein said inorganic pigments have a coating consisting of one or more organically substituted polysiloxanes which are chemically bonded to the pigments' surfaces, wherein said enamel exhibits reduced settling and migration of the pigments compared to an enamel which is identical except for lacking said chemically bonded coating.
Claim 8
Dependent Claim
74 words
In a nail enamel comprising a plurality of inorganic pigments suspended in a liquid base which comprises nitrocellulose, a solvent, and a suspending agent, the improvement wherein said inorganic pigments have a coating consisting of one or more organically substituted polysiloxanes which are chemically bonded to the pigments' surfaces, wherein said enamel exhibits reduced settling and migration of the pigments compared to an enamel which is identical except for lacking said chemically bonded coating.
Claim 9
Dependent Claim
70 words
The nail enamel of claim 6 wherein said coating, when bonded to said pigment surface, has 1-1000 (Si--O) units in which the remaining functional sites of each Si atom are substituted with hydrogen, methyl, C 2 -C 30 alkyl, C 2 -C 30 alkenyl, or phenyl, provided that at least one Si atom of the polysiloxanes is chemically bonded to an oxygen atom which is bonded to the pigment surface.
Claim 10
Dependent Claim
35 words
The nail enamel of claim 6 wherein the inorganic pigment is selected from the group consiting of iron oxides, titanated mica, iron oxide coated mica, titanium dioxide, ultramarine, chromium oxide, chromium hydroxide, and manganese violet.
Claim 11
Dependent Claim
21 words
The nail enamel of claim 6 wherein said coated pigment comprises up to about 10 wt. % of the nail enamel.
Claim 12
Dependent Claim
21 words
The nail enamel of claim 6 wherein said coated pigment comprises up to about 2 wt. % of the nail enamel.
Claim 13
Dependent Claim
80 words
A nail enamel consisting essentially of: (A) a plurality of pigments, including at least one inorganic pigment; and (B) a liquid base for hiolding said pigments in suspension, said base being of the type in which said inorganic pigment tends to migrate; wherein said inorganic pigment is in a form such that its tendency to migrate is deterred, said inorganic pigment having a coating thereon of an organically substituted polysiloxane which is bonded chemically to the surface of the pigment.
Claim 14
Dependent Claim
80 words
A nail enamel consisting essentially of: (A) a plurality of pigments, including at least one inorganic pigment; and (B) a liquid base for hiolding said pigments in suspension, said base being of the type in which said inorganic pigment tends to migrate; wherein said inorganic pigment is in a form such that its tendency to migrate is deterred, said inorganic pigment having a coating thereon of an organically substituted polysiloxane which is bonded chemically to the surface of the pigment.
Claim 15
Dependent Claim
15 words
A nail enamel according to claim 11 including a plurality of inorganic pigments and nitrocellulose.
Claim 16
Dependent Claim
21 words
The nail enamel of claim 11 wherein said coated pigment comprises up to about 10 wt. % of the nail enamel.
Claim 17
Dependent Claim
21 words
The nail enamel of claim 11 wherein said coated pigment comprises up to about 2 wt. % of the nail enamel.
Claim 18
Dependent Claim
70 words
The nail enamel of claim 11 wherein said coating, when bonded to said pigment surface, has 1-1000 (Si--O) units in which the remaining functional sites of each Si atom are substituted with hydrogen, methyl, C 2 -C 30 alkyl, C 2 -C 30 alkenyl, or phenyl, provided that at least one Si atom of the polysiloxanes is chemically bonded to an oxygen atom which is bonded to the pigment surface.
Claim 19
Dependent Claim
35 words
The nail enamel of claim 11 wherein the inorganic pigment is selected from the group consisting of iron oxides, titanated mica, iron oxide coated mica, titanium dioxide, ultramarine, chromium oxide, chromium hydroxide and manganese violet.
Claim 20
Dependent Claim
32 words
A nail enamel according to claim 1, 2, 3, 4, 5, 11, 12, 13, 14, 15 or 16 including a plurality of said inorganic pigments, each of which has said coating thereon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |