发明名称 |
KONTINUERLIGT FORFARANDE FOR AVLEGSNANDE AV MONOMERA FORORENINGAR UR VATTENDISPERSIONER AV GENOM EMULSIONSPOLYMERISATION ERHALLNA VINYLKLORIDPOLYMERER |
摘要 |
A process for removing residual monomer from an emulsifier-containing aqueous dispersion of a solid vinyl chloride polymer having a surface tension of less than 60 dyne/cm., which comprises continuously admixing the polymer dispersion with steam in a fluid flow pipe under a pressure of 150-600 torr at a flow velocity of 1-20 m./sec., and passing said admixture at an exit velocity of 30-100 m./sec. horizontally into and along the walls of a degasification tank having a pressure 30-200 torr lower than the pressure in said flow pipe to evaporate residual monomer. |
申请公布号 |
SE419225(B) |
申请公布日期 |
1981.07.20 |
申请号 |
SE19750009477 |
申请日期 |
1975.08.26 |
申请人 |
* CHEMISCHE WERKE HULS AG |
发明人 |
J * KALKA;H * WINTER;J * BECKMANN |
分类号 |
C08F14/00;C08F6/00;C08F6/06;C08F6/16;(IPC1-7):08F6/16;08F14/06 |
主分类号 |
C08F14/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|