US4804538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing powder cake cosmetics
Assignee: RIXIMA Inc
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Filing: 1987-04-03
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Granted: 1989-02-14
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Expires: 2007-04-03
Abstract
Abstract A method for producing powder cosmetics which utilizes some suitable solvents to convert the powder materials into slurry form, so as to facilitate transportation through pipelines. The slurry is filled into a plastic case through an opening provided at its lower face and the solvent is discharged from the slurry at a reduced pressure. Thus, convert the slurry to a powder cake.
Inventors
- 👤 Mei L. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:56
CPC Classifications
A; A45; A45D; A45D33/00; A45D33/006; A45D40/00; A45D40/22; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/25; A61Q; A61Q1/00; A61Q1/02; A61Q1/08; A61Q1/10; A61Q1/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A method for producing powder cake cosmetics comprising the steps of: (a) mixing at least a mixture of powder materials, coloring materials and binders with at least a solvent, to form a slurry; (b) delivering said slurry through a pipeline to a predetermined position; (c) filling the slurry into a cavity of a plastic case, each cavity being provided with an opening at a lower face thereof which connects said pipeline at said predetermined position; (d) discharging the solvent from said slurry at a reduced pressure; and (e) withdrawing the plastic case that has been filled with powder cosmetics.
Claim 2
Independent Claim
99 words
A method for producing powder cake cosmetics comprising the steps of: (a) mixing at least a mixture of powder materials, coloring materials and binders with at least a solvent, to form a slurry; (b) delivering said slurry through a pipeline to a predetermined position; (c) filling the slurry into a cavity of a plastic case, each cavity being provided with an opening at a lower face thereof which connects said pipeline at said predetermined position; (d) discharging the solvent from said slurry at a reduced pressure; and (e) withdrawing the plastic case that has been filled with powder cosmetics.
Claim 3
Dependent Claim
24 words
A method as claimed in claim 1, wherein said mixture of powder materials, coloring materials, and binders, further comprises a small amount of additives.
Claim 4
Dependent Claim
29 words
A method as claimed in claim 1, wherein said powder materials are selected from the group consisting of talc, titanium dioxide, Kaolin, mica, magnesium stearate, iron oxide, and carmine.
Claim 5
Dependent Claim
26 words
A method as claimed in claim 1, wherein said binders are selected from the group consisting of dimethicon, lanolin, mineral oil, squalane, and hydropholic polymeric oil.
Claim 6
Dependent Claim
30 words
A method as claimed in claim 1, wherein said solvents are selected from the group consisting of alcoholic solvents, low boiling point hydrocarbons, and low boiling point cyclic silicon oil.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-14 | 1992-08-15 | 1993-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-14 | 1996-08-15 | 1997-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-14 | 2000-08-15 | 2001-02-14 | $7700.00 | Window Closed / Lapsed |