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US 8,475,846 B2Granted
Colored micaceous pigments having bismuth oxychloride appearance and performance effects
AssigneeBASF SE
InventorsSteven Alan Jones, Gabriel E. Uzunian, Betty F. Aucar
Life of this patent
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Abstract
A combination pigment having a mica and/or metal oxide-coated mica substrate, an absorption colorant coating, and a waxy film bonding the absorption colorant coating to the substrate.
Claims18
A combination pigment comprising:
- an interference mica pigment and
- a coating of one or more absorption colorant bonded to the mica pigment by at least one waxy material,
- wherein said absorption colorant has a particle size of about 10 nm to about 10 microns,
- wherein the waxy material is a salt of a fatty acid.
1 more element
A combination pigment comprising:
- an interference mica pigment and
- a coating of one or more absorption colorant bonded to the mica pigment by at least one waxy material,
- wherein said absorbant colorant has a particle size of about 10 nm to about 10 microns,
- wherein said waxy material is a mixture of at least two waxy materials,
- wherein said waxy material is selected from natural and synthetic hydrocarbons, fatty acids, fatty esters, fatty alcohols, fatty ethers and salts thereof,
- wherein at least one of the waxy material is a salt of a fatty acid.
3 more elements
A method of forming a combination pigment comprising:
- forming an aqueous slurry containing an interference mica pigment, a water insoluble absorption colorant and a waxy binder material and
- depositing said waxy binder material and said absorption colorant on said mica pigment,
- wherein the waxy binder material a salt of a fatty acid.
Dependencies are inferred from the claim text.