Method for obtaining pigments for ceramic and glass, and...

Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing

Reexamination Certificate

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C423S335000, C423S339000, C423S604000, C423S605000, C423S607000, C423S632000, C423S633000, C106S453000, C106S456000, C106S481000, C106S482000

Reexamination Certificate

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06908600

ABSTRACT:
A method for obtaining pigments for ceramic and glass, particularly for substrates and coatings, including a step of adding a solution of an iron salt to at least one silicon addition agent including silica in gel form.

REFERENCES:
patent: 4251394 (1981-02-01), Carter et al.
patent: 4299635 (1981-11-01), Dickerson
patent: 4404254 (1983-09-01), Franz et al.
patent: 5931998 (1999-08-01), Tourangeau
patent: 6228160 (2001-05-01), Hanich et al.
patent: 6264907 (2001-07-01), Matsuda et al.
patent: 6685907 (2004-02-01), Matsuda et al.
patent: 42 44 258 (1994-06-01), None
patent: 0 947 564 (1999-10-01), None
patent: 1103059 (1968-02-01), None

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