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US5364467A
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Luster pigments based on multiply coated plateletlike metalic substrates
Assignee: BASF SE
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Filing: 1993-04-30
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Granted: 1994-11-15
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Expires: 2013-04-30
Abstract
Abstract Luster pigments useful for coloring paints, printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations are based on multiply coated plateletlike metallic substrates comprising A) a first, colorless or selectively absorbing layer of metal oxide, B) a second, nonselectively absorbing layer of carbon, metal and/or metal oxide, and C) if desired a third, colorless or selectively absorbing layer of metal oxide.
Inventors
- 👤 Raimund Schmid
- 👤 Norbert Mronga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:31
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/62; C09C1/64; C09C1/0015; C09C1/642; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/60; C01P2006/62; C01P2006/63; C01P2006/64; C01P2006/65; C01P2006/66; C09C2200/00; C09C2200/10; C09C2200/102; C09C2200/1054; C09C2200/24; C09C2200/30; C09C2200/302; C09C2200/303; C09C2200/306; C09C2200/307; C09C2200/40; C09C2200/401; C09C2220/00; C09C2220/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
48 words
A luster pigment, comprising a platelet-shaped metallic substrate, coated with: (A) a first colorless or selectively absorbing layer of metal oxide, and (B) a nonselectively absorbing layer selected from the group consisting of carbon, iron, molybdenum, chromium, tungsten, magnetite, nickel oxide, cobalt oxide, vanadium oxide and mixtures thereof.
Claim 2
Dependent Claim
48 words
A luster pigment, comprising a platelet-shaped metallic substrate, coated with: (A) a first colorless or selectively absorbing layer of metal oxide, and (B) a nonselectively absorbing layer selected from the group consisting of carbon, iron, molybdenum, chromium, tungsten, magnetite, nickel oxide, cobalt oxide, vanadium oxide and mixtures thereof.
Claim 3
Dependent Claim
20 words
The luster pigment of claim 1, further coated with: (C) a second colorless or selectively absorbing layer of metal oxide.
Claim 4
Dependent Claim
37 words
The luster pigment of claim 1, wherein said layer (A) consists essentially of a metal oxide selected from the group consisting of titanium oxide, zirconium oxide, silicon oxide, tin oxide, chromium oxide, iron oxide and mixtures thereof.
Claim 5
Dependent Claim
37 words
The luster pigment of claim 2, wherein said layer (C) consists essentially of a metal oxide selected from the group consisting of titanium oxide, zirconium oxide, silicon oxide, tin oxide, chromium oxide, iron oxide and mixtures thereof.
Claim 6
Dependent Claim
17 words
The luster pigment as claimed in claim 1, wherein the platelet-shaped metallic substrate consists essentially of aluminum.
Claim 7
Dependent Claim
16 words
The luster pigment of claim 5, wherein said layer (A) consists essentially of TiO 2 .
Claim 8
Dependent Claim
17 words
The luster pigment of claim 6, wherein said layer (B) consists essentially of iron, molybdenum or chromimum.
Claim 9
Dependent Claim
14 words
The luster pigment of claim 7, wherein said layer (B) consists essentially of molybdenum.
Claim 10
Dependent Claim
37 words
The luster pigment of claim 2, wherein said layer (A) consists essentially of TiO 2 , said layer (B) consists essentially of molybdenum or chromium and said layer (C) consists essentially of TiO 2 or chromium oxide.
Claim 11
Dependent Claim
15 words
The luster pigment of claim 9, wherein said platelet-shaped metallic substrate consists essentially of aluminum.
Claim 12
Dependent Claim
33 words
The luster pigment of claim 10, wherein said layer (A) consists essentially of TiO 2 , said layer (B) consists essentially of molybdenum and said layer (C) consists essentially of TiO 2 .
Claim 13
Dependent Claim
19 words
A luster pigment of claim 5 wherein the platelet shaped aluminum substrate is produced by stamping, atomization or grinding.
Claim 14
Dependent Claim
26 words
The luster pigment of claim 12, wherein said platelet-shaped metallic substrate is further coated with (C) a second colorless or selectively absorbing layer of metal oxide.
Claim 15
Dependent Claim
103 words
A luster pigment, comprising a platelet-shaped metallic substrate, coated with: (A) a first colorless or selectively absorbing layer of metal oxide selected from the group consisting of titanium oxide, zirconium oxide, silicon oxide, tin oxide, chromium oxide, iron oxide and mixtures thereof, and (B) a nonselectively absorbing layer selected from the group consisting of carbon, iron, molybdenum, chromium, tungsten, nickel oxide, cobalt oxide, vanadium oxide and mixtures thereof, and (C) optionally, desired, a second colorless or selectively absorbing layer of metal oxide selected from the group consisting of titanium oxide, zirconium oxide, silicon oxide, tin oxide, chromium oxide, iron oxide and mixtures thereof.
Claim 16
Dependent Claim
103 words
A luster pigment, comprising a platelet-shaped metallic substrate, coated with: (A) a first colorless or selectively absorbing layer of metal oxide selected from the group consisting of titanium oxide, zirconium oxide, silicon oxide, tin oxide, chromium oxide, iron oxide and mixtures thereof, and (B) a nonselectively absorbing layer selected from the group consisting of carbon, iron, molybdenum, chromium, tungsten, nickel oxide, cobalt oxide, vanadium oxide and mixtures thereof, and (C) optionally, desired, a second colorless or selectively absorbing layer of metal oxide selected from the group consisting of titanium oxide, zirconium oxide, silicon oxide, tin oxide, chromium oxide, iron oxide and mixtures thereof.
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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) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |