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US 8,859,656 B2Granted
Emulsion of an associative acrylic polymer polymerised in the presence of polyglycerols and its use as a thickening agent in an aqueous formulation
AssigneeCoatex
InventorsJean-Marc Suau, Denis Ruhlmann
Life of this patent
Estimating the term…
Abstract
Emulsions containing acrylic associative thickening agents which, when polymerized in the presence of particular polyglycerols, have a thickening power which is remarkably stable over time.
Claims20
An aqueous emulsion of an associative thickening agent comprising water and an associative thickening agent obtained by polymerization:
- a) of at least one monomer which is (meth)acrylic acid,
- b) of at least one monomer which is an ester of (meth)acrylic acid, and
- c) of at least one monomer having at least one hydrophobic group,
- in the presence of d) at least one polyglycerol of formula (I):
- where n is 2 or 3 and R designates hydrogen, an ester group functionalized by an alkyl group having 8 to 22 carbon atoms, or an alkyl group having 8 to 22 carbon atoms.
2 more elements
An associative thickening agent obtained by polymerization:
- a) of at least one monomer which is (meth)acrylic acid,
- b) of at least one monomer which is an ester of (meth)acrylic acid, and
- c) of at least one monomer having at least one hydrophobic group,
- in the presence of d) at least one polyglycerol of formula (I):
- where n is 2 or 3 and R designates hydrogen, an ester group functionalized by an alkyl group having 8 to 22 carbon atoms, or an alkyl group having 8 to 22 carbon atoms.
2 more elements
Dependencies are inferred from the claim text.