Pigment formulations and paint compositions comprising the formulations
OwnerYoshinori Ohyama, Makoto Ueda +1inventors
InventorsYoshinori Ohyama, Makoto Ueda, Akihiko Yamanouchi
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Abstract
This invention provides pigment formulations excelling in dispersibility and paint compositions comprising them. The pigment formulation is powdery and comprises resin and pigment as dispersed in the resin matrix, the resin being composed of a copolymer comprising polymerizable unsaturated monomer units having at least one kind of functional groups selected from tertiary amino, quaternary ammonium salt and sulfo groups and other ethylenically unsaturated monomer units, and having a glass transition temperature within a range of 40-150° C.
Claims13
A pigment formulation which is a powdery pigment formulation comprising resin (A) and pigment (B) as dispersed in the resin matrix, characterized in that the resin (A) is composed of a copolymer containing polymerizable unsaturated monomer (a) units having at least one kind of functional group selected from the group consisting of tertiary amino, quaternary ammonium salt and sulfo groups, and other ethylenically unsaturated monomer (b) units, and having glass transition temperature within a range of 40-150° C.
Dependencies are inferred from the claim text.