A new process was developed for synthesis of acrylated alkyd resin in which a methyl methacrylate (MMA) is copolymerized with a maleinized alkyd resin.The effect of the concentration of MMA and initiator

addition methods on the film properties has been investigated.It was showed

compared with the conventional modified alkyd resin

the MMA modified alkyd resin made by the new process is superior in appearance of film

impact resistance and resistance to petrol.The new process broadens the materials source of modified alkyds

reduces the cost of product.The satisfactory formulations are obtained with 30%-40% of methyl methacrylate

3.0% of initiator and 60%-70% maleinized alkyd resin.The key technique in this process is the addition method

which MMA and based alkyd are added into reactor together

and initiator is introduced into the reacted mixture gradually in four hours.