date:Mar 16, 2019
price:unfilled
Delivery time:3days
contact
company:Wuxi Hongdinghua Chemical Equipment Co., Ltd.
send:click send
name:Jianjun(Mr.)
telephone:86-510-85189799
mobile:13093055723
fax:86-510-85190830
adress:Northeast side of intersection of Wuhu Road Hefeng road at Shuang Xin Park, Taihu street, Jiangsu, China
Email:wxhdhhg@aliyun.com
Details
The unsaturated polyester resin is generally a linear polymer compound having an ester bond and an unsaturated double bond, which is obtained by polycondensation of an unsaturated dibasic acid diol or a saturated dibasic acid unsaturated diol. Usually, the polyester polycondensation reaction is carried out at 190 to 220°C until the desired acid value (or viscosity) is reached. After the end of the polyester polycondensation reaction, a certain amount of vinyl monomer is added while hot, an