AIR-DRYING ALKYD RESIN AND AN EMULSION THEREOF

摘要

The invention relates to an emulsion comprising an air-drying alkyd resin dispersed in water having an oil length between 20 and 90 %. The alkyd emulsion is stabilized by salt groups which are chemically attached to the alkyd resin and which are salts of acidic groups having a pKa less than about 3. The invention also discloses the preparation of these alkyd resins, as well as hybrid emulsions of alkyd and acrylate resins.