REACTIVE ALKYD SURFACTANT AND STABLE EMULSIONS MADE THEREFROM

摘要

An alkyd surfactant which is effective in emulsifying alkyd resins is formed by copolymerization of at least one monomer having a hydrophilic group, at least one ethylenically unsaturated fatty acid or ester, and optionally, at least one polyol, and has a low degree of branching. Stable alkyd emulsions are formed by emulsification of alkyd resins with the alkyd surfactant. Since the alkyd surfactant has ethylenically unsaturated hydrophobe groups which can react with the alkyd resin during curing, the alkyd surfactant is not subject to migration, blooming or leaching from cured coatings.

主权项

1. An alkyd surfactant formed by copolymerization of:
at least one monomer comprising a hydrophilic group, at least one ethylenically unsaturated fatty acid or ester, and optionally, at least one polyol; wherein the alkyd surfactant has a branching potential of less than or equal to 50%, wherein the branching potential is calculated by the following equation:BP=100×ab,wherein “BP” is the branching potential in units of percent, “a” is the total equivalents of multi-functional monomers having greater than two reactive groups per molecule, and “b” is the total equivalents of all monomers.