| 摘要 |
A binder formulation is described, suitable for pasting pigments for aqueous coating media even without the addition of emulsifier. It contains 20 to 40 parts by weight of polyester urethane resin with an acid number of 10 to 50, 70 to 100% of its acid groups reacted with ammonia and/or amines, and with a number average molecular mass of 2,000 to 30,000, obtainable from polyester polyol with an OH number of 35 to 200 and a number average molecular mass from 500 to 5,000 in a mixture with 2 to 30 wt.% diols with a molecular mass of 60 to 350, of which a part contains at least one ac group capable of forming anions, as well as with 0 to 6 wt.% triols with a molecular mass of 60 to 350, with diisocyanates in an OH- group/NCO group ratio of more than 1.0 to 1.3, in addition to 4 to 25 parts by weight of organic solvent miscible with water and 15 to 75 parts by weight of water. |
