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    
Applicant(s) Name  Qilu Petrochemical Co., China Petrochemical Corp.  
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.