Dispersing agents for pigments or extenders based on acrylic...

Details Dispersing agents for pigments or extenders based on acrylic... Dispersing agents for pigments or extenders based on acrylic...

2003-07-21

2008-10-07

Metzmaier, Daniel S (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C516S027000, C516S029000, C525S329600, C525S330500, C525S382000, C525S384000

Reexamination Certificate

active

07432329

ABSTRACT:
The present invention relates to dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers, wherein at least part of the ester groups of the polymers is reacted to form acid amides, wherein the dispersing agent is obtainable by the aminolysis of ester groups of the polymers by means of amines, such as amino alkylenyl heterocycles. The invention also relates to the use of the dispersing agents according to the invention for the production of pigment concentrates and coating media, and to a process for producing the dispersing agents.

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