Universally Dispersible Solid Pigment Preparation, Preparation and Use Thereof
AssigneeOrion Engineered Carbons IP GmbH & Co. KG
InventorsGuido Waidmann, David Momper, Angelika Kind, Conny Vogler, David Deters
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Abstract
The present disclosure relates to a solid pigment preparation, including at least one pigment in an aqueous solution including an amine-functional acrylic block copolymer and an amine-functional polymeric dispersant including a polyoxyalkylene moiety, as well as a process for producing the solid pigment preparations and their use in various coloring applications. The solid pigment preparations are particularly universally dispersible in both water- and solvent-based systems. Corresponding dispersions are accordingly also within the scope of the present disclosure.
Claims20
A solid pigment preparation comprising:
- (a) at least one pigment;
- (b) an amine-functional acrylic block copolymer;
- and
- (c) an amine-functional polymeric dispersant comprising a polyoxyalkylene moiety.
A process for producing a solid pigment preparation, the process comprising the steps of:
- (i) dispersing at least one pigment in an aqueous solution comprising an amine-functional acrylic block copolymer and an amine-functional polymeric dispersant comprising a polyoxyalkylene moiety;
- and
- (ii) drying of the dispersion to form the solid pigment preparation
A dispersion comprising:
- (a) at least one pigment,
- (b) an amine-functional acrylic block copolymer,
- (c) an amine-functional polymeric dispersant comprising a polyoxyalkylene structure, and
- (d) a liquid aqueous or organic solvent-based carrier medium.
A process for coloration of a material, which comprises incorporating:
- a solid pigment preparation comprising:
- (a) at least one pigment;
- (b) an amine-functional acrylic block copolymer;
- and
- (c) an amine-functional polymeric dispersant comprising a polyoxyalkylene moiety;
- or
- a dispersion comprising:
- (a) at least one pigment,
- (b) an amine-functional acrylic block copolymer,
- (c) an amine-functional polymeric dispersant comprising a polyoxyalkylene structure, and
- (d) a liquid aqueous or organic solvent-based carrier medium, in said material.
A method for dispersing pigments comprising the use of a combination of (i) an amine-functional acrylic block copolymer and (ii) an amine-functional polymeric dispersant comprising a polyoxyalkylene moiety.
Dependencies are inferred from the claim text.