摘要 |
The present invention relates to the use of a branched addition copolymer as a dispersant in a gaseous, liquid or solid formulation in a range of applications and to the copolymers per se wherein the copolymer is obtainable by an addition polymerisation process, wherein said copolymer comprises: at least two chains which are covalently linked by a bridge other than at their ends; and wherein the at least two chains comprise at least one ethyleneically monounsaturated monomer, and wherein the bridge comprises at least one ethyleneically polyunsaturated monomer; and wherein the polymer comprises a residue of a chain transfer agent and wherein the mole ratio of polyunsaturated monomer(s) to monounsaturated monomer(s) is in a range of from 1:100 to 1:4; and wherein the branched copolymer dispersant contains anchoring, solubilising or stabilising moieties and wherein the resulting copolymer has a weight average molecular weight of greater than 100,000 Da. |
申请人 |
UNILEVER PLC |
发明人 |
FINDLAY, PAUL, HUGH;ROYLES, BRODYCK, JAMES, LACHLAN;BAUDRY, ROSELYNE, MARIE, ANDREE;SIMPSON, NEIL, JOHN;TODD, SHARON;RANNARD, STEVEN, PAUL |