C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/36 (2006.01) C09C 1/00 (2006.01)
Patent
CA 2347017
In one embodiment, the present invention relates to a KOH neutralized metatitanic acid mixture containing from about 30 % to about 99 % by weight metatitanic acid, from about 1 % to about 20 % by weight of a titanyl compound, and optionally from about 0 % to about 55 % by weight titanium dioxide, wherein the KOH neutralized metatitanic acid mixture has a pH from about 4 to about 6.5. In another embodiment, the present invention relates to a pigment composition made by combining a KOH neutralized metatitanic acid mixture and at least one guest element precursor, wherein the KOH neutralized metatitanic acid mixture contains metatitanic acid, a titanyl compound, and optionally titanium dioxyde, the KOH neutralized metatitanic acid mixture having a pH from about 4 to about 6.5.
Dans un mode de réalisation, l'invention concerne un mélange d'acide métatitanique neutralisé avec l'hydroxyde de potassium (KOH) contenant environ 30 à 99 en poids d'acide métatitanique, environ 1 à 20 en poids d'un composé de titane et, facultativement, environ 0 à 55 en poids de dioxyde de titane. Le pH du mélange d'acide neutralisé avec KOH est d'environ 4 à 6,5. Dans un autre mode de réalisation, l'invention concerne une composition de pigment réalisée par la combinaison dudit mélange et d'au moins un précurseur en élément trace, ledit mélange contenant de l'acide métatitanique, un composé de titane et, facultativement, du dioxyde de titane et son pH étant d'environ 4 à 6,5.
Edwards Thomas V.
Howell William L. Jr.
Mazzella Frank A.
Engelhard Corporation
Sim & Mcburney
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