Method for preparing polyacrylic sodium from waste acrylic


Application Number  00129399 Application Date  2000.12.11
Publication Number  1358774 Publication Date  2002.07.17
Priority Information    
International
Classification
 C08F120/06  
Applicant(s) Name  Qilu Petrochemical Co., China Petrochemical Corp.  
Address    
Inventor(s) Name  Li Liuzhong;Sui Guohong;Zhang Tingshan  
Patent Agency Code  37212 Patent Agent  gong tonghai
AbstractThe present invention belongs to the field of polymeric compound preparation technology: using waste Nitrilon, sodium hydroxide and water to make hydrolytic chain extension to obtain sodium polyacrylate aqueous solution, hydrolyzing waste Nitrilon: sodium hydroxide: water=1:0.1=2:2-10 wt%: 60-100 deg.C and 0.5-10 hr. after hydrolization neutralizing to pH 3-7; adding chain extender, its concentration is 0.02-10 wt%, 95-105 deg.C and 0.5-10 hr., waste Nitrilon: chain extender=1:0.001-1 wt%. Said product is high in rotating viscosity, low in cost, high in retative molecular mass, stable in property, convenient for use, and can be regulated according to the requirements.