Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Reexamination Certificate
2004-11-19
2010-11-09
Green, Anthony J (Department: 1793)
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
C106S400000, C427S215000, C427S216000, C427S217000, C427S218000
Reexamination Certificate
active
07828890
ABSTRACT:
The invention relates to effect pigments having an aluminum core or aluminum alloy core and an aluminum oxide-containing or aluminum oxide/hydroxide-containing layer enveloping said aluminum core or aluminum alloy core, obtained by chemical wet-process oxidation of lamellar aluminum pigments or aluminum alloy pigments, the content of metallic aluminum in the aluminum core or aluminum alloy core being not more than 90% by weight, based on the total weight of the pigment, wherein the oxidized aluminum pigments or aluminum alloy pigments exhibit at least one highly refractive metal chalcogenide layer having a refractive index of >1.95, and a mixed layer is formed between the highly refractive metal chalcogenide layer and the enveloping aluminum oxide-containing or aluminum oxide/hydroxide-containing layer. The invention further relates to a process for the production of such effect pigments and to the use thereof.
REFERENCES:
patent: 5059245 (1991-10-01), Phillips et al.
patent: 5135812 (1992-08-01), Phillips et al.
patent: 5607504 (1997-03-01), Schmid et al.
patent: 5624486 (1997-04-01), Schmid et al.
patent: 5763086 (1998-06-01), Schmid et al.
patent: 5964936 (1999-10-01), Reisser
patent: 6648957 (2003-11-01), Andes et al.
patent: 6858072 (2005-02-01), Li et al.
patent: 2003/0039836 (2003-02-01), Pfaff et al.
patent: 2004/0003758 (2004-01-01), Bruckner et al.
patent: 2004/0166316 (2004-08-01), Noguchi
patent: 26 27 428 (1976-12-01), None
patent: 42 23 384 (1994-01-01), None
patent: 195 20 312 (1998-12-01), None
patent: 33 457 (1981-08-01), None
patent: 0 451 785 (1991-10-01), None
patent: 0 580 022 (1994-01-01), None
patent: 0 668 329 (1995-08-01), None
patent: 0 708 154 (1996-04-01), None
patent: 0 717 088 (1996-06-01), None
patent: 0 848 735 (1998-06-01), None
patent: 1 084 198 (2001-03-01), None
patent: 1 270 684 (2003-01-01), None
patent: WO 96/38505 (1996-12-01), None
patent: WO 00/09617 (2000-02-01), None
International Search Report PCT/EP2004/013173 dated Sep. 8, 2005.
Schmid R., et al., “Luster Pigments with Optically Variable Properties”,4thNurnberg Congress, pp. 1-10.
W. Cramer et al., “That certain something—Triangular relationships between chromatic, aluminum and interference pigments”,Farbe&Lack, 109(10):78 (2003). (In German).
W. Cramer et al., “That certain something—Triangular relationships between chromatic, aluminum and interference pigments”,Farbe&Lack, 109(10):78 (2003). (English translation of the above).
Birner Hermann
Grüner Michael
Henglein Frank
Eckart GmbH & Co. KG
Green Anthony J
Ostrolenk Faber LLP
Parvini Pegah
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