Patent ID: 7718731

Claim:
Aqueous dispersion comprising at least one alkyd resin, characterized in that said alkyd resin is obtained from at least one conjugated unsaturated fatty acid representing, by weight, at least 5% of the said resin and in that the said resin is treated, before and/or during and/or after the forming of the aqueous dispersion, with at least one oxidizing agent selected from: hydroperoxides, including H 2 O 2 , peroxides or singlet oxygen, and in that the temperature of the oxidizing treatment is: (i) from ambient temperature to less than 100° C., when it takes place after the forming of the aqueous dispersion, and ii) from 50 to 150° C., when it takes place before the forming of the aqueous dispersion, and iii) from 50 to less than 100° C., when the treatment takes place during the aqueous dispersion stage, and in that the mean particle size is ranging from 50 to 500 nm and that the solid contents is ranging from 30 to 70%; and without gelling of the treated alkyd resin.