C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 133/08 (2006.01) B01F 17/00 (2006.01) C08F 8/32 (2006.01) C09D 7/02 (2006.01) C09D 17/00 (2006.01)
Patent
CA 2237443
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, wherein, for the aminolysis, at least one amine is used from the group comprising a) amines of general formula NH2 - R1- NR2R3, wherein R1 is a divalent alkylene radical comprising 2 - 4 carbon atoms and R2 and R3 are aliphatic and/or alicyclic alkyl radicals which comprise 1 - 12, preferably 1 - 6 carbon atoms and which can be the same or different, and b) amines of general formula NH2 - R1 - Z, wherein R1 is a divalent alkylene radical comprising 2 - 4 carbon atoms and Z is a 5- or 6-membered N-containing heterocycle which can comprise up to 2 nitrogen atoms or which can additionally comprise oxygen. 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.
Haubennestel Karlheinz
Orth Ulrich
Pritschins Wolfgang
Byk-Chemie Gmbh
Kirby Eades Gale Baker
LandOfFree
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