The Synthesis of Xylene Formaldehyde Unsaturated Polyester Resin and its Application in the Putty

The xylene formaldehyde unsaturated polyester resin was synthesized with glycol, xylene formaldehyde resin and maleic anhydride (MA) as raw materials using styrene as diluent. It was used in putty. The dosage of hydroquinone (HQ), propylene glycol (PG) and diethylene glycol (DEG) mole ratio on the influence of the synthesis of the resin and the performance of the putty. The results show that the amount of HQ is about 0.03% of the total mass. the synthetic process is smoothly and the curing performance of the resin is better. The premise is that the mass of PG and DEG possesses 4.5% of the xylene formaldehyde resin mass. Mole ratio of PG and DEG (PG-DEG ratio: 1: 2mol/mol) is critical for high yield.