| 摘要 |
Disclosed is a process for producing acid polyester resins used for the manufacture of coatings, especially powder coatings, wherein a prepolymer having a hydroxyl index of between 40 and 200 is reacted with isophthalic acid to form an acid polyester resin having an acid index between 50 and 100 which is further reacted with an epoxy resin. |
