Polymers
AssigneeUnilever PLC
InventorsPaul Hugh Findlay, Steven Paul Rannard, Brodyck James Lachlan Royles, Jonathan Victor Mark Weaver
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Abstract
The present invention relates to a branched polymer obtainable an addition polymerisation process, preferably a free-radical polymerisation process, which is the reaction product of: (a) an initiator, optionally but preferably a free-radical initiator, (b) optionally but preferably a compatible chain transfer agent (E and E′), (c) at least one ethylenically monounsaturated monomer (G and/or J), (d) at least one ethylenically polyunsaturated monomer (L), wherein at least one of (a)-(d) has a molecular weight of at least 1000 Daltons, and the mole ratio of (d) to (c) is greater than 0.0005 to 1.
Claims26
A branched polymer obtainable by an addition polymerisation process, which is the reaction product of:
- (a) an initiator,
- (b) a compatible chain transfer agent (E and E′),
- (c) at least one ethylenically monounsaturated monomer (G and/or J),
- (d) at least one ethylenically polyunsaturated monomer (L),
- wherein at least one of (a)-(d) has a molecular weight of at least 1000 Daltons,
- and the mole ratio of (d) to (c) is greater than 0.0005 to 1.
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Dependencies are inferred from the claim text.