US5733658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luster pigments based on reduced titania-coated silicate-based platelets
Assignee: BASF SE
•
Filing: 1996-03-29
•
Granted: 1998-03-31
•
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 03:25
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.
References Cited (Backward Citations)
US3087827A
Cited
DE2557796A1
Cited
US4076555A
Cited
US4192691A
Cited
US4565581A
Cited
JPS59126468A
Cited
DE3433657A1
Cited
US4623396A
Cited
JPS60184570A
Cited
JPS61392A
Cited
US5061317A
Cited
US5116664A
Cited
EP0332071A1
Cited
US4948631A
Cited
US5156889A
Cited
DE4141049A1
Cited
EP0525526A1
Cited
US5246780A
Cited
WO1994013489A1
Cited
US5565025A
Cited
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 |