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US 8,263,699 B2Granted
Method for dispersing alkyd resins with associative polymers in water, formulations thus obtained and aqueous paints containing same
AssigneeCoatex
InventorsJean-Marc Suau, Denis Ruhlmann, Olivier Guerret
Life of this patent
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Abstract
The invention consists of a method for dispersion in water of an alkyd resin, by means of a polymer having associative hydrophobic groups. The formulations obtained then enable a water-based alkyd paint to be manufactured, without having recourse to surfactants or solvents.
Claims20
A method, comprising:
- (a) blending a polymer comprising, in polymerized form:
- (meth)acrylic acid,
- a (meth)acrylic ester, and
- at least one hydrophobic monomer,
- with at least one alkyd resin and water to obtain a blend;
- (b) adjusting the pH of the blend to a value greater than 6, to obtain a dispersion of the blend in the water;
- and then
- (c) precipitating the dispersion by adjusting the pH to a value less than 6.
5 more elements
A water-based formulation consisting essentially of water, at least one alkyd resin, and at least one polymer comprising:
- (meth)acrylic acids;
- a (meth)acrylic ester;
- and
- at least one hydrophobic monomer.
1 more element
A method, comprising:
- (a) blending a polymer comprising:
- (meth)acrylic acid,
- a (meth)acrylic ester, and
- at least one hydrophobic monomer,
- with at least one alkyd resin and water to obtain a blend;
- and
- (b) adjusting the pH of the blend to a value greater than 6, to obtain a dispersion of the blend in the water,
- wherein the blend comprises at least 35% by weight of the at least one alkyd resin, and at most of 70% by weight of the at least one alkyd resin, compared to its total weight.
5 more elements
A water-based formulation having a pH of less than 6, comprising water, at least one alkyd resin, and at least one polymer comprising:
- (meth)acrylic acid;
- a (meth)acrylic ester;
- and
- at least one hydrophobic monomer.
1 more element
Dependencies are inferred from the claim text.