Non-anionic water-soluble additives
AssigneeClariant Finance (BVI) Limited
InventorsBjoern Fechner, Carsten Schaefer, Alexander Woerndle
Life of this patent
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Abstract
The invention relates to a copolymer that can be obtained by the polymerisation of monomers (A), (B) and (C), (A) being a monomer of formula (I), in which A represents a C2 to C4alkene and B represents a C2 to C4alkene that is different from A, R represents hydrogen or methyl, m is a number between 1 and 500, n is a number between 1 and 500, (B) is an ethylenically unsaturated monomer containing an aromatic group and (C) is an ethylenically unsaturated monomer containing an alkyl radical. The claimed copolymers are suitable for use as dispersants for pigments.
Claims15
1) A copolymer obtained by polymerizing monomers (A), (B) and (C), wherein
- (A) is a monomer of formula (I)
- wherein
- A is C2- to C4-alkylene,
- B is a C2- to C4-alkylene other than A,
- R is hydrogen or methyl,
- m is from 1 to 500;
- n is from 1 to 500,
- and the sum total of m+n is from 2 to 1000;
- (B) is an ethylenically unsaturated monomer containing an aromatic group;
- and
- (C) is an ethylenically unsaturated monomer containing an alkyl radical.
Dependencies are inferred from the claim text.