Patent US5024831A successfully refreshed from Google Patents.
US5024831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powdery cosmetic containing cellulose powder impregnated with moisturizing polymer
Assignee: JNC Corp
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Filing: 1989-11-03
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Granted: 1991-06-18
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Expires: 2009-11-03
Abstract
Abstract The present invention provides a powdery cosmetic which is excellent in spreadability and adhesion, free from standing-out of powder after application to the skin, free from a dry and loose sensation and has characteristics necessary for powdery cosmetic. The powdery cosmetic of the present invention comprises a porous spherical cellulose powder incorporated therein in an amount of 0.1 to 50% by weight based on the whole amount of the powdery cosmetic. The porous spherical cellulose powder has an average particle diameter of at least 3 μm and coated, impregnated, or chemically linked with at least one high molecular substance retentive of moisture.
Inventors
- 👤 Hideo Kurisaki
- 👤 Masahiko Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:10
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/731; A61Q; A61Q1/00; A61Q1/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
A powdery cosmetic comprising: a spherical cellulose powder having an average particle diameter of at least 3 μm and present in an amount of 0.1 to 50% by weight based on the total weight of powdery cosmetic, said spherical cellulose powder coated, impregnated, or chemically linked with at least one high molecular weight moisture retentive substance selected from the group consisting of hyaluronic acid, chondroitin sulfuric acid, collagen, collagen hydrolyzate, elastin, elastin hydrolyzate, fibronectin and salts and derivatives of the aforementioned.
Claim 2
Dependent Claim
81 words
A powdery cosmetic comprising: a spherical cellulose powder having an average particle diameter of at least 3 μm and present in an amount of 0.1 to 50% by weight based on the total weight of powdery cosmetic, said spherical cellulose powder coated, impregnated, or chemically linked with at least one high molecular weight moisture retentive substance selected from the group consisting of hyaluronic acid, chondroitin sulfuric acid, collagen, collagen hydrolyzate, elastin, elastin hydrolyzate, fibronectin and salts and derivatives of the aforementioned.
Claim 3
Dependent Claim
17 words
A powdery cosmetic according to claim 1 wherein said spherical cellulose powder comprises a porous cellulose powder.
Claim 4
Dependent Claim
23 words
A powdery cosmetic according to claim 1 wherein said spherical cellulose powder has an average particle diameter of no more than 50 μm.
Claim 5
Dependent Claim
20 words
A powdery cosmetic according to claim 1 wherein said spherical cellulose powder has a maximum particle diameter of 100 μm.
Claim 6
Dependent Claim
18 words
A powdery cosmetic according to claim 1 wherein said high molecular weight moisture retentive substance comprises hyaluronic acid.
Claim 7
Dependent Claim
25 words
A powdery cosmetic according to claim 1 wherein said powdery cosmetic further includes at least one of a constitutional pigment and an oil or wax.
Claim 8
Dependent Claim
31 words
A powdery cosmetic according to claim 6 wherein said constitutional pigment comprises at least one of zinc white, titanium dioxide, talc, mica, clay, kaolin, iron oxide, ultramarine blue, and organic pigments.
Claim 9
Dependent Claim
36 words
A powdery cosmetic according to claim 6 wherein said oil or wax comprises at least one of a higher alcohol, higher fatty acid, solid paraffin, vegetable oil, animal oil, mineral oil, synthetic oil and silicone oil.
Claim 10
Dependent Claim
58 words
A powdery cosmetic according to claim 6 wherein said oil or wax comprises at least one of cetyl alcohol, stearyl alcohol, stearic acid, behenic acid, microcrystalline wax, polyethylene wax, candelilla wax, beeswax, castor oil, hydrogenated castor oil, carnauba wax, bark wax, olive oil, jojoba oil, lanolin, liquid paraffin, vaseline, trimethylolpropane triisostearate, isopropyl myristate, glycerol tri-2-ethylhexanoate and pentaerythritol tetra-2-ethylhexanoate.
Claim 11
Dependent Claim
92 words
A powdery cosmetic comprising: a porous, spherical cellulose powder having an average particle diameter of 3 to 50 μm and a maximum particle diameter of 100 μm, said porous spherical cellulose powder being present in an amount of 0.1 to 50% by weight based on the total weight of powdery cosmetic, and coated, impregnated, or chemically linked with at least one high molecular weight moisture retentive substance selected from the group consisting of hyaluronic acid, chondroitin sulfuric acid, collagen, collagen hydrolyzate, elastin, elastin hydrolyzate, fibronectin and salts and derivatives of the aforementioned.
Claim 12
Dependent Claim
92 words
A powdery cosmetic comprising: a porous, spherical cellulose powder having an average particle diameter of 3 to 50 μm and a maximum particle diameter of 100 μm, said porous spherical cellulose powder being present in an amount of 0.1 to 50% by weight based on the total weight of powdery cosmetic, and coated, impregnated, or chemically linked with at least one high molecular weight moisture retentive substance selected from the group consisting of hyaluronic acid, chondroitin sulfuric acid, collagen, collagen hydrolyzate, elastin, elastin hydrolyzate, fibronectin and salts and derivatives of the aforementioned.
Claim 13
Dependent Claim
18 words
A powdery cosmetic according to claim 10 wherein said high molecular weight moisture retentive substance comprises hyaluronic acid.
References Cited (Backward Citations)
JPS61100514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |