Oxides and the production thereof
AssigneeTioxide Group Services Limited
InventorGuy Decelles
Life of this patent
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Abstract
Titanium dioxide carries an ester or a partial ester of an hydroxy compound containing 1 to 6 OH groups and an aliphatic saturated C.sub.10 to C.sub.22 monocarboxylic acid. The product is easily dispersible in plastics compositions, particularly masterbatches. The titanium dioxide can also be coated with one or more hydrous oxides. The product is prepared by milling the titanium dioxide in a fluid energy mill in the presence of the ester or partial ester.
Claims17
An oxide comprising particulate titanium dioxide having on the particles thereof an ester or partial ester of pentaerythritol and an aliphatic, unsubstituted C.sub.10 to C.sub.22 monocarboxylic acid.
A method for the production of an oxide comprising subjecting particulate titanium dioxide to milling in a fluid energy mill in the presence of an ester or partial ester of an organic hydroxy compound containing 1 to 6 OH groups and an aliphatic saturated unsubstituted C.sub.10 to C.sub.22 monocarboxylic acid.
A plastic composition comprising a mixture of a polymer and an oxide comprising particulate titanium dioxide having on the particles thereof an ester or partial ester of an organic hydroxy compound containing 1 to 6 OH groups and an aliphatic unsubstituted C.sub.10 to C.sub.22 monocarboxylic acid.
Dependencies are inferred from the claim text.