US5089256A
Expired / Lapsed
US
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Process for preparing solid powder formulations having different colors
Assignee: Wurttembergische Parfumerie Fabrik GmbH
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Filing: 1989-01-12
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Granted: 1992-02-18
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Expires: 2009-01-12
Abstract
Abstract The process for the preparation of containers comprising two or more partial regions separated from each other of solid cast powder formulations having different colors employs containers into which separating bridges of a pasty composition have been injected, said composition being similar to the subsequently cast solid powder formulations. The bridges prevent the partial regions having different colors from coalescing.
Inventors
- 👤 Hans U. Scheller
- 👤 Karl A. Scheller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:23
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/88; A45; A45D; A45D40/00; A45D40/24; A61K8/30; A61K8/33; A61K8/37; A61K8/40; A61K8/42; A61Q; A61Q1/00; A61Q1/12; A61K2800/00; A61K2800/80; A61K2800/88
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
157 words
A process for preparing a container which comprises separate compartments containing powder formulations of different colors, said process comprising: (I) injecting a separating bridge into the container such that said separating bridge forms a first and a second compartment in the container wherein each of said first and second compartments are separated by said separating bridge, said separating bridge comprising a paste composition which comprises: (a) from 0 to °% by weight of a nonhygroscopic flowable organic solid having a particle size of from 5 to 50 μm as a filler; (b) a fatty acid, a derivative thereof or a wax; (c) a colored or color-neutral pigment or pearlescent pigment; and (d) an evaporable non-toxic hydrophobic solvent; (II) pouring a first powder formulation in said first compartment and a second powder formulation in said second compartment, said first powder formulation having a different color than said second powder formulation; and (III) evaporating the excess of said solvent.
Claim 2
Dependent Claim
157 words
A process for preparing a container which comprises separate compartments containing powder formulations of different colors, said process comprising: (I) injecting a separating bridge into the container such that said separating bridge forms a first and a second compartment in the container wherein each of said first and second compartments are separated by said separating bridge, said separating bridge comprising a paste composition which comprises: (a) from 0 to °% by weight of a nonhygroscopic flowable organic solid having a particle size of from 5 to 50 μm as a filler; (b) a fatty acid, a derivative thereof or a wax; (c) a colored or color-neutral pigment or pearlescent pigment; and (d) an evaporable non-toxic hydrophobic solvent; (II) pouring a first powder formulation in said first compartment and a second powder formulation in said second compartment, said first powder formulation having a different color than said second powder formulation; and (III) evaporating the excess of said solvent.
Claim 3
Dependent Claim
25 words
The process according to claim 1, further comprising treating surfaces of the product obtained from step (III) with a pressure of less than 10 bar.
Claim 4
Dependent Claim
31 words
The process according to claim 1, wherein said nonhydroscopic flowable organic solid comprises spherical or ellipsoidal particles of polyamide 12 powder present in said composition at 7 to 20% by weight.
Claim 5
Dependent Claim
36 words
The process according to claim 1, wherein said fatty acid, derivative thereof or wax is selected from the group consisting of oleyl eructate, stearic acid monoethanolamide, glyceryl oleate, bees wax, microcrystalline hard wax, and mixtures thereof.
Claim 6
Dependent Claim
12 words
The process according to claim 1, wherein said solvent comprises octamethyl cyclotetrasiloxane.
Claim 7
Dependent Claim
38 words
The process according to claim 1, wherein said paste composition further comprises at least one member selected from the group consisting of methylparaben, propylparaben, butylhydroxytoluene, methylchloroisothiazolinone/methylisothiazolinone copolymers and polysiloxane/polyalkyl polyether copolymers, in combination with an organic non-ionic emulsifier.
Claim 8
Dependent Claim
25 words
The process according to claim 6, wherein said emulsifier is selected from the group consisting of cetyl dimethicone copolyol, cetyl dimethicone, polyglyceryl-3-oleate and hexyl laurate.
Claim 9
Dependent Claim
38 words
The process according to claim 4, wherein said paste composition further comprises at least one member selected from the group consisting of methylparaben, propylparaben, butylhydroxytoluene, methylchloroisothiazolinone/methylisothiazolinone copolymers and polysiloxane/polyalkyl polyether copolymers, in combination with an organic non-ionic emulsifier.
Claim 10
Dependent Claim
92 words
The process according to claim 3, characterized in that the paste composition employed is a mixture comprising a) 7.0 to 15% by weight of polyamide 12 powder; b) 3.0 to 5.0% by weight of oleyl erucate; 0.8 to 2.0% by weight of stearic acid monoethanolamide; c) 40 to 50% by weight of color-neutral pigment and/or oleate d) 35 to 45% by weight of octamethyl cyclotetrasiloxane; e) about 0.1% by weight of methylparaben; about 0.1% by weight of propylparaben; about 0.1% by weight of methylchloroisothiazolinone and methylisothiazolinone; about 0.05% by weight of butylhydroxytoluene.
Claim 11
Dependent Claim
92 words
The process according to claim 4, characterized in that the paste composition employed is a mixture comprising a) 7.0 to 15.0% by weight of polyamide 12 powder; b) 3.0 to 5.0% by weight of oleyl erucate; 0.8 to 2.0% by weight of stearic acid monoethanolamide; c) 40 to 50% by weight of color-neutral pigment and/or oleate d) 35 to 45% by weight of octamethyl cyclotetrasiloxane; e) about 0.1% by weight of methylparaben; about 0.1% by weight of propylparaben; about 0.1% by weight of methylchloroisothiazolinone and methylisothiazolinone; about 0.05% by weight of butylhydroxytoluene.
Claim 12
Dependent Claim
91 words
The process according to claim 5, characterized in that the paste composition employed is a mixture comprising 7.0 to 15.0% by weight of polyamide 12 powder; b) 3.0 to 5.0% by weight of oleyl erucate; 0.8 to 2.0% by weight of stearic acid monoethanolamide; c) 40 to 50% by weight of color-neutral pigment and/or oleate d) 35 to 45% by weight of octamethyl cyclotetrasiloxane; e) about 0.1% by weight of methylparaben; about 0.1% by weight of propylparaben; about 0.1% by weight of methylchloroisothiazolinone and methylisothiazolinone; about 0.05% by weight of butylhydroxytoluene.
Claim 13
Dependent Claim
92 words
The process according to claim 6, characterized in that the paste composition employed is a mixture comprising a) 7.0 to 15.0% by weight of polyamide 12 powder; b) 3.0 to 5.0% by weight of oleyl erucate; 0.8 to 2.0% by weight of stearic acid monoethanolamide; c) 40% to 50% by weight of color-neutral pigment and/or oleate d) 35 to 45% by weight of octamethyl cyclotetrasiloxane; e) about 0.1% by weight of methylparaben; about 0.1% by weight of propylparaben; about 0.1% by weight of methylchloroisothiazolinone and methylisothiazolinone; about 0.05% by weight of butylhydroxytoluene.
Claim 14
Dependent Claim
72 words
The process according to claim 1, characterized in that the paste composition employed is a mixture comprising b) 8 to 8% by weight of bees' wax; 6 to 8% by weight of stearic acid monoethanolamide; c) 8 to 15% by weight of color-neutral pigment and/or pearlescent pigment; d) 50 to 60% by weight of octamethyl cyclotetrasiloxane; e) 10 to 20% by weight of polysiloxane/polyalkyl polyether copolymers in combination with organic non-ionic emulsifiers.
Claim 15
Dependent Claim
72 words
The process according to claim 4, characterized in that the paste composition employed is a mixture comprising b) 6 to 8% by weight of bees' wax; 6 to 8% by weight of stearic acid monoethanolamide; c) 8 to 15% by weight of color-neutral pigment and/or pearlescent pigment; d) 50 to 60% by weight of octamethyl cyclotetrasiloxane; e) 10 to 20% by weight of polysiloxane/polyalkyl polyether copolymers in combination with organic non-ionic emulsifiers.
Claim 16
Dependent Claim
72 words
The process according to claim 5, characterized in that the paste composition employed is a mixture comprising b) 6 to 8% by weight of bees' wax; 6 to 8% by weight of stearic acid monoethanolamide; c) 8 to 15% by weight of color-neutral pigment and/or pearlescent pigment; d) 50 to 60% by weight of octamethyl cyclotetrasiloxane; e) 10 to 20% by weight of polysiIoxane/polyalkyl polyether copolymers in combination with organic non-ionic emulsifiers.
Claim 17
Dependent Claim
72 words
The process according to claim 6, characterized in that the paste composition employed is a mixture comprising b) 6 to 8% by weight of bees' wax; 6 to 8% by weight of stearic acid monoethanolamide; c) 8 to 15% by weight of color-neutral pigment and/or pearlescent pigment; d) 50 to 60% by weight of octamethyl cyclotetrasiloxane; e) 10 to 20% by weight of polysiloxane/polyalkyl polyether copolymers in combination with organic non-ionic emulsifiers.
Claim 18
Dependent Claim
90 words
The process according to claim 3, characterized in that the pasty, composition employed is a mixture comprising a) 13 to 20% by weight of polyamide 12 powder; b) 1 to 5% by weight of stearic acid monoethanolamide; 2 to 6% by weight of glyceryl stearate / or oleate; c) 3 to 10% by weight of colorant pigment; 20 to 40% by weight of color-neutral or colored pearlescent pigment; d) 40 to 50% by weight of octamethyl cyclotetrasiloxane; 13to 20% by weight of cetyl dimethicone copolyol, cetyl dimethicone, polyglyceryl-3-oleate, hexyl laurate.
Claim 19
Dependent Claim
92 words
The process according to claim 4, characterized in that the paste composition employed is a mixture comprising a) 13 to 20% by weight of polyamide 12 powder; b) 1 to 5% by weight of stearic acid monoethanolamide; 2 to 6% by weight of glyceryl stearate / or oleate; c) 3 to 10% by weight of colorant pigment; 20 to 40% by weight of color-neutral or colored pearlescent pigment; d) 40 to 50% by weight of octamethyl cyclotetrasiloxane; e) 13 to 20% by weight of cetyl Dimethicone copolyol, cetyl dimethicone, polyglyceryl-3-oleate, hexyl laurate.
Claim 20
Dependent Claim
91 words
The process according to claim 5, characterized in that the paste composition employed is a mixture comprising a) 13 to 20% by weight of polyamide powder; b) 1 to 5% by weight of stearic acid monoethanolamide; 2 to 6% by weight of glyceryl stearate / or oleate; c) 3 to 10% by weight of colorant pigment; 20 to 40% by weight of color-neutral or colored pearlescent pigment; d) 40 to 50% by weight of octamethyl cyclotetrasiloxane; e) 13 to 20% by weight of cetyl dimethicone copolyol, cetyl dimethicone, polyglyceryl-3-oleate, hexyl laurate.
Claim 21
Dependent Claim
92 words
The process according to claim 6, characterized in that the paste composition employed is a mixture comprising a) 13 to 20% by weight of polyamide 12 powder; b) 1 to 5% by weight of stearic acid monoethanolamide; 2 to 6% by weight of glyceryl stearate / or oleate; c) 3 to 10% by weight of colorant pigment; 20 to 40% by weight of color-neutral or colored pearlescent pigment; d) 40 to 50% by weight of octamethyl cyclotetrasiloxane; e) 13 to 20% by weight of cetyl dimethicone copolyol, cetyl dimethicone, polyglyceryl-3-oleate, hexyl laurate.
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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) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |