发明名称 |
Production of a powder of polyvinylchloride or a vinylchloride copolymerizate suitable for producing plastisols |
摘要 |
An aqueous dispersion of polyvinylchloride or vinylchloride copolymerizate is spray dried in a flow of drying air in a drying tower which contains at least one two-fluid nozzle for atomizing the aqueous dispersion and an injection member for pressurized air for providing the atomized particles with a rotary motion, about the longitudinal axis of the drying tower. A controlled rotary motion is imparted to the mixture of sprayed particles and the drying air. The heat economy and product quality are improved since it is possible to use a high drying air inlet temperature and to obtain an easily grindable powder suitable for producing stable, low viscosity plastisols.
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申请公布号 |
US4229249(A) |
申请公布日期 |
1980.10.21 |
申请号 |
US19790022885 |
申请日期 |
1979.03.22 |
申请人 |
A/S NIRO ATOMIZER |
发明人 |
FELSVANG, KARSTEN S.;HANSEN, OVE E. |
分类号 |
C08F6/00;B01D1/18;B29B9/00;C08F2/00;C08F6/06;C08J3/12;F26B3/12;(IPC1-7):B01D1/18 |
主分类号 |
C08F6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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