Process for synthesizing anti-lash modifying agent used for polyvinyl-chloride resin

Application Number  00129394 Application Date  2000.12.09
Publication Number  1358779 Publication Date  2002.07.17
Priority Information    
Applicant(s) Name  Qilu Petrochemical Co., China petrochemical Corp.  
Inventor(s) Name  Meng Xiantan;Yu Yuanzhang;Zhu Weidong  
Patent Agency Code  37212 Patent Agent  gong tonghai
AbstractThe synthesis method of impact modifier for polyvinyl chloride incldues the following steps: adding emulsifier time afte time, controlling grain size of latex, ensuring stability of system to obtain SBR latex whose grain size is 60-100 nm, then first step, grafting complete styrene and small quantity of methyl methacrylate, and second step, grafting residual methyl methacrylate. Said invention can obviously improve stability of polymerization system, after the synthetic MBS resin is mixed with PVC it can retain good impact resistance and optical property, at the same time the yellow index and working plasticizing property of the MBS/PVC mixture are obviously improved.