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US5271771A Carbon-containing metal oxide pigments 失效
含碳金属氧化物颜料

Carbon-containing metal oxide pigments
摘要:
The invention relates to carbon-containing plate-like pigments, obtainable by pyrolysis of carbon-containing compounds in the presence of either plate-like metal oxides or metal oxide mixtures or plate-like substrates coated with titanium dioxide and at least one further metal oxide under conditions in which the metal of the metal oxide is reduced.
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