Application Number: 00101339
Application Date: 2000.01.07
Publication Number: 1260352
Publication Date: 2000.07.19
Priority Information:
International: C08F2/22;C08F20/06
Applicant(s) Name: Lanzhou Chemical Industry Corp., SINOPEC
Address:
Inventor(s) Name: Liang Tao;Li Linqing;Li Pingfan
Patent Agency Code: 62004
Patent Agent: ma yanping
Abstract The synthesis method of large-grain acrylic latex includes the following steps: 1. adding emulsifier in 0.01-0.09 wt% of total amount of reaction monomers in polymerization still; 2. adding monomer in 30-60 wt% of total amount of reaction monomers in polymerization still; 3. adding initiator in 0.2-0.8 wt% of total amount of reaction monomers in polymerization still; and 4. adding water; then heating to make reaction for 15-20 min, and adding emulsifier in 0.2-0.8 wt5 of total amount of reaction monomers and residual 40-70 wt% monomer, said partial emulsifier and monomer can be added once or in several times, constant temp. reaction for 3-5 hr to obtain latex whose grain size is 200-600 nm.