Title: Dyed lustrous pigments

Abstract: Lustrous pigments having a wide range of colors and especially suitable for the cosmetics industry are produced by forming an aluminum lake on a micaceous pigment coated with aluminum hydroxide.

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Inventors: Bernhard, Horst (Darmstadt, DT)
Marquard, Kurt (Darmstadt, DT)

Application Number: 588504
Filing Date: 1975-06-19
Publication_date: 1978-04-18
Assignee: Merck Patent Gesellschaft mit beschrankter Haftung (Darmstadt, DT)
Primary Class(es): 106/402 106/417, 427/214, 427/220, 427/399
Other Classes:
US Patent Ref:

2053208	Sep, 1936	Curtis	106/289.
2772984	Dec, 1956	Helfaer	106/289.
2935481	May, 1960	Hochwalt	106/308.
2984635	May, 1961	Harris	106/289.
3036059	May, 1962	Ehrhardt et al.	106/289.
3087828	Apr, 1963	Linton	106/291.
3477866	Nov, 1969	Remer	106/289.
3632395	Jan, 1972	Dyson	106/289.
3711308	Jan, 1973	Brand et al.	106/291.
3716388	Feb, 1973	Lopez et al	106/308.
3917887	Nov, 1975	Stiller	427/343.

Other Refs: 9,674 OF1,000,531

, 1905	UK
Aug, 1965	UK

Primary Examiner: Smith, Ronald H.
Assistant Examiner: Silverberg, Sam
Attorney: Millen & White