Patent US5733658A successfully refreshed from Google Patents.
US5733658A
Expired / Lapsed
US
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Luster pigments based on reduced titania-coated silicate-based platelets
Assignee: BASF SE
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Filing: 1996-03-29
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Granted: 1998-03-31
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Expires: 2016-03-29
Abstract
Abstract Luster pigments obtainable by treating titania-coated silicate-based platelets at from 400° to 900° C. with a gas mixture comprising a vaporized organic compound and ammonia are useful for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.
Inventors
- 👤 Raimund Schmid
- 👤 Claus Kaliba
- 👤 Norbert Mronga
- 👤 Werner Ostertag
- 👤 Helmut Schmidt
- 👤 Juan Antonio Gonzalez Gomez
- 👤 Hermann Bidlingmaier
- 👤 Raymond Ellinghoven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:54
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0015; C09C1/0021; A; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; A61K8/0254; A61K8/18; A61K8/19; A61K8/25; A61K8/29; A61Q; A61Q1/00; A61Q1/02; C03; C03C; C03C1/00; C03C1/04; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/14; C09D; C09D5/00; C09D5/36; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/42; A61K2800/43; A61K2800/436; A61K2800/60; A61K2800/61; A61K2800/62; A61K2800/621; A61K2800/65; A61K2800/651; C01; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2006/00; C01P2006/12; C01P2006/60; C01P2006/62; C01P2006/63; C01P2006/64; C01P2006/65; C09C2200/00; C09C2200/10; C09C2200/102; C09C2200/20; C09C2200/202; C09C2200/30; C09C2200/301; C09C2200/302; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
Luster pigments obtained by treating titania-coated silicate-based platelets at from 400° to 900° C. with a gas mixture comprising a vaporized organic compound and ammonia.
Claim 2
Dependent Claim
25 words
Luster pigments obtained by treating titania-coated silicate-based platelets at from 400° to 900° C. with a gas mixture comprising a vaporized organic compound and ammonia.
Claim 3
Dependent Claim
19 words
Luster pigments as claimed in claim 1, wherefor the organic compound used is methane, ethane, propane, n-butane and/or isobutane.
Claim 4
Dependent Claim
14 words
Luster pigments as claimed in claim 1, wherein the silicate-based platelets are mica platelets.
Claim 5
Dependent Claim
34 words
A process for producing luster pigments as claimed in claim 1, which comprises treating titania-coated silicate-based platelets at from 600° to 900° C. with a gas mixture comprising a vaporized organic compound and ammonia.
Claim 6
Dependent Claim
27 words
A method of use of luster pigments as claimed in claim 1 for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.
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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) | 2001-03-30 | 2001-09-29 | 2002-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-30 | 2005-09-29 | 2006-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-30 | 2009-09-29 | 2010-03-31 | $7700.00 | Window Closed / Lapsed |