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US 8,557,897 B2Granted
Coating composition, coating and an object coated with the coating composition
AssigneeDsm IP Assets B.V.
InventorsEdwin Currie, Jens Thies, Paul Holmes
Life of this patent
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Abstract
A process for producing a coating composition includes separately chemically grafting particles with compounds having reactive groups and compounds having hydrophilic polymer chains. The hydrophilic polymer chains dissolve in water at least one temperature between 0 and 100° C. The reactive groups may react with the substrate and or react with one another to form a cross-linked coating, comprising the particles. A process for forming a coating on a substrate is also provided.
Claims17
A process for producing a coating composition comprising the steps of:
- (a) providing particles, compounds comprising reactive groups, and compounds comprising hydrophilic polymer chains, and
- (b) separately chemically grafting (i) the compounds comprising the reactive groups, and (ii) the compounds comprising the hydrophilic polymer chains to the particles, wherein
- the hydrophilic polymer chains comprise at least an average of 5 monomer units of ethylene oxide or vinylpyrrolidone.
Dependencies are inferred from the claim text.