| 摘要 |
A water dispersible polyester resin solution is made by esterifying a mixture, consisting of: about 2.0 moles to about 5.0 moles of an organic, dicarboxylic acid selected from at least one, of an aromatic dicarboxylic acid, and tetrahydrophthalic acid; about 0.1 mole to about 1.5 moles of an organic, unsaturated aliphatic dicarboxylic acid; about 0.1 mole to about 6.5 moles of an organic, saturated aliphatic dicarboxylic acid; about 1.0 mole to about 5.0 moles of an organic, alicyclic dihydric alcohol; 0 mole to about 5.0 moles of an organic, aliphatic dihydric alcohol and about 0.6 mole to about 1.2 moles of a compound effective to cause cross linking; and adding an amount of organic solvent effective to provide a solution of between about 50 wt. % to about 90 wt. % solids content; wherein the esterification reaction is continued until the acid value drops to between about 45 to about 65, and wherein the mole ratio of OH/COOH = 0.30 to 0.90. |
