US4842848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Make-up cosmetics
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1986-12-24
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Granted: 1989-06-27
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Expires: 2006-12-24
Abstract
Abstract A new type of cosmetics is prepared by incorporating therein a synthetic flaky metallic oxide having an average thickness of about 0.1 to about 2 mu m, an average size of about 1 to about 100 mu m [which is defined as an average value of (the longest diameter of flakes+shortest diameter of flakes)/2 for 100 flakes], and a refractive index of about 1.4 to about 1.8. Make-up cosmetics containing an artificially synthesized flaky metallic oxide of a low refractive index as a pigment, particularly an extender pigment have an improved touch and stability with time in use which has not been attained by conventional cosmetics.
Inventors
- 👤 Kenji Saita
- 👤 Kunio Saegusa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:50
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0015; C09C1/0018; A; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; A61K8/0254; A61K8/18; A61K8/19; A61K8/26; A61Q; A61Q1/00; A61Q1/02; A61Q1/12; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/42; A61K2800/43; C01; C01P; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/20; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/60; C01P2006/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
In a make-up cosmetic comprising conventional base materials, the improvement comprising having incorporated in said make-up cosmetic at least one synthetic flaky oxide compound consisting essentially of alumina, silica or magnesia, or comprising a mixture of at least one synthetic flaky oxide compound consisting essentially of alumina, silica or magnesia, and at least one synthetic flaky oxide compound consisting essentially of tiatania, zirconia or zinc oxide, the flakes of said flaky oxide or flaky oxide mixture having an average thickness of 0.1 to 2 μm and an average size of 1 to 100 μm and a refractive index of 1.4 to 1.8, said average size being defined herein as an average value of the longest diameter of flakes plus the shortest diameter thereof divided by 2 for 100 flakes.
Claim 2
Dependent Claim
129 words
In a make-up cosmetic comprising conventional base materials, the improvement comprising having incorporated in said make-up cosmetic at least one synthetic flaky oxide compound consisting essentially of alumina, silica or magnesia, or comprising a mixture of at least one synthetic flaky oxide compound consisting essentially of alumina, silica or magnesia, and at least one synthetic flaky oxide compound consisting essentially of tiatania, zirconia or zinc oxide, the flakes of said flaky oxide or flaky oxide mixture having an average thickness of 0.1 to 2 μm and an average size of 1 to 100 μm and a refractive index of 1.4 to 1.8, said average size being defined herein as an average value of the longest diameter of flakes plus the shortest diameter thereof divided by 2 for 100 flakes.
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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) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |