发明名称 |
Ketone bisulfites as reducing agent for free radical polymerization |
摘要 |
This invention relates to an improvement in a process for producing a latex containing dispersed polymer. The improvement in the process for polymerizing a reaction mixture of vinyl monomer, stabilizer, oxidizing agent and reducing agent comprises using a water-soluble ketone bisulfite as the reducing agent, either alone or with other reducing agents, the ketone having from 3 to 8 carbon atoms in the structure. During the polymerization, the ketone bisulfite is maintained in stoichiometric excess of the oxidizing agent. Vinyl acetate-ethylene copolymers are some of the preferred polymer systems produced.
|
申请公布号 |
US4360632(A) |
申请公布日期 |
1982.11.23 |
申请号 |
US19810314318 |
申请日期 |
1981.10.23 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
PINSCHMIDT, JR., ROBERT K.;MARTEN, FINN L. |
分类号 |
C08F2/00;C08F2/18;C08F2/22;C08F4/00;C08F4/40;(IPC1-7):C08L23/02 |
主分类号 |
C08F2/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|