Compositions having hase rheology modifiers
AssigneeRhodia Operations
InventorsHui Shirley Yang, Derek Pakenham, Herve Adam, Pierre Hennaux
Life of this patent
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Abstract
A monomer compound that contains at least one polymerizable functional group per molecule, and at least one bicycloheptyl-, bicycloheptenyl-, or branched (C5-C42)alkyl-polyether radical per molecule, wherein the bicycloheptyl- or bicycloheptenyl-polyether radical may optionally be substituted on one or more of the ring carbon atoms by one or two (C1-C6)alkyl groups per ring carbon atom is useful in making polymers, particularly pH responsive polymers.
Claims14
A polymer comprising one or more monomeric units derived from a monomer compound according to structure (VI):
- wherein:
- R3 is H or CH3,
- R4 is CH3,
- M is an integer from about 10 to about 40;
- and
- N is an integer having a value of 1 to M.
A pH responsive polymer comprising, based on the total weight of monomers,
- (a) from about 25 to about 70 percent by weight acid monomeric units, each independently comprising a carboxylic acid-functional substituent group,
- (b) from about 30 to about 70 percent by weight nonionic monomeric units, each independently comprising a nonionic substituent group, and
- (c) from about 0.05 to about 20 percent by weight hydrophobic monomeric units, each independently derived from a monomer compound according to structure (VI):
- wherein:
- R3 is H or CH3,
- R4 is CH3,
- M is an integer from about 10 to about 40;
- and
- N is an integer having a value of 1 to M.
Dependencies are inferred from the claim text.