| abstract |
Process for the preparation of aqueous dispersions of air-drying alkyd resins, characterized in that an alkyd resin is dispersed at 80-90º c, optionally under pressure at temperatures above 100º c, in water, containing 0.5-2% of weight of ammonia, with the aid of 6-12% by weight (based on alkyd resin) of an emulsifying resin, equal or similar in its characteristic to the alkyd resin to be dispersed, modified with 50-70% by weight of polyethylene glycol, optionally blocked unilaterally with a methoxy group, with 6-100, preferably 20-70 ethylene oxide units per molecule. (Machine-translation by Google Translate, not legally binding) |