发明名称 |
PRODUCTION OF FINE VINYL CHLORIDE RESIN POWDER |
摘要 |
PURPOSE:To produce a fine vinyl chloride resin powder with an average particle size of 0. 5-2.0mum by subjecting a vinyl chloride resin powder with an average particle size of 30-200mum to breaking by mechanical shear at relatively low temp. and shear stress for a short time. CONSTITUTION:A fine vinyl chloride resin powder with an average particle size of 0.5-2.0mum is produced by subjecting a vinyl chloride resin powder produced by the aq. suspension method and having a degree of polymn. of 500-1, 500 and an average particle size of 30-200mum to breaking by mechanical shear at a resin temp. of 90-150 deg.C under a compression ratio of 20-300% and a shear stress of 0.5X10<8>-5.0X10<8>dyn/cm<2> for 1-30sec. |
申请公布号 |
JPH0782382(A) |
申请公布日期 |
1995.03.28 |
申请号 |
JP19930233314 |
申请日期 |
1993.09.20 |
申请人 |
SEKISUI CHEM CO LTD |
发明人 |
ISHIMATSU HIROSHI;INOUE HIDEKI;SUGAYA TAKEHISA |
分类号 |
C08F14/06;C08F214/06;C08J3/12;(IPC1-7):C08J3/12 |
主分类号 |
C08F14/06 |
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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