Back to results
US 2003/0166755 A1Published application
Comb polymers from atrp macromonomers
AssigneeCiba Specialty Chemicals Corporation
InventorsAndreas Muhlebach, Francois Rime, Clemens Auschra, Ernst Eckstein
Life of this patent
Estimating the term…
Abstract
The invention relates to comb polymers and macromonomers based on acrylates prepared by the ATRP (Atom Transfer Radical Polymerization) method. These polymers have an improved capability of dispersing pigments in the given solvent. The invention also relates to compositions comprising the comb polymers and macromonomers dispersible inorganic or organic pigment particles. The compositions are used by applying them to any suitable substrate, for example to metal, wood plastic or ceramic materials.
Claims17
A composition comprising
- a) 0.1-99.9% by weight of a block copolymer of the formula:
- 9
- wherein:
- In represents a polymerization initiator fragment of a polymerization initiator capable of initiating atomic transfer radical polymerization (ATRP) of ethylenically unsaturated monomers in the presence of a catalyst capable of activating controlled radical polymerization;
- p represents a numeral greater than zero and defines the number of initiator fragments;
- A and B represent polymer blocks which differ in polarity and consist of repeating units of ethylenically unsaturated monomers;
- x and y represent numerals greater than zero and define the number of monomer repeating units in polymer blocks A and B;
- X represents a polymer chain terminal group;
- and
- q represents a numeral greater than zero;
- and
- b) 0.1-99.9% by weight of dispersible inorganic or organic pigment particles:
9 more elements
Dependencies are inferred from the claim text.