Process for preparing polyol di(methy) acrylate


Application Number  00129354 Application Date  2000.11.24
Publication Number  1355161 Publication Date  2002.06.26
Priority Information    
International
Classification
 C07C67/28;C07C69/73  
Applicant(s) Name  Qilu Petro-Chemical Co, China Petro-Chemical Group  
Address    
Inventor(s) Name  Jiang Xin;Liu Fusheng;Mu Tiezheng  
Patent Agency Code  37001 Patent Agent  chen huizhen
AbstractA process for preparing polyol di(methyl) acrylate uses the low-grade alcohol (methyl) acrylate and polyol as raw materials, and features that under the action of composite catalyst and polymerization inhibitor, the raw materials take part in ester exchange reaction to obtain the said product. The composite catalyst is composed of the oxide, hydroxide or nitrate of Ca or Ba and the LiX, where X may be nitriate, sulfite or carboxylate containing more than 6 C atoms. Its advantages include high activity of catalyst, high effect of polymerization inhibitor, simple post-treatment, high purity of product (90% or more), and low cost.