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公开(公告)号:BR8007441A
公开(公告)日:1981-05-26
申请号:BR8007441
申请日:1980-11-14
Applicant: HOECHST AG
Inventor: WEINLICH J , FISCHER E , BRANDRUP J
IPC: C08F14/00 , C07D265/34 , C07D265/36 , C07D265/38 , C08F2/00 , C08F2/16 , C08F2/18 , C09B19/00 , C08F14/06 , C08F259/04
Abstract: A process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in a reactor in which the internal walls, and the other parts on which polymer deposits can form, have a covering which contains a representative compound such as depicted by the formula extensive suppression of polymer crusts is thereby obtained.
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公开(公告)号:BR8002927A
公开(公告)日:1980-12-23
申请号:BR8002927
申请日:1980-05-12
Applicant: HOECHST AG
Inventor: BRANDRUP J , WEINLICH J , FISCHER E
IPC: C08F14/00 , C07D265/24 , C07D265/38 , C08F2/00 , C08F14/06 , C23F15/00 , C08F259/04
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公开(公告)号:SE7507121L
公开(公告)日:1975-12-22
申请号:SE7507121
申请日:1975-06-19
Applicant: HOECHST AG
Inventor: WEINLICH J , BOTSCH F
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公开(公告)号:YU55876A
公开(公告)日:1982-05-31
申请号:YU55876
申请日:1976-03-04
Applicant: HOECHST AG
Inventor: TZSCHOPPE E , WEINLICH J
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公开(公告)号:BR8105079A
公开(公告)日:1982-04-20
申请号:BR8105079
申请日:1981-09-06
Applicant: HOECHST AG
Inventor: KLIPPERT H , ENGELMANN M , PASCHALIS S , TZSCHOPPE E , WEINLICH J
Abstract: In the manufacture of polymer suspensions, good spacetime yields, a narrow particle size distribution and good polymer properties are obtained in a relatively uncomplicated apparatus which includes a plurality of reactors having a length/diameter ratio of at least 4, the first reactor standing vertically and the others approximately horizontally. Plug flow of the polymerization mixture is maintained in the reaction zones provided by the reactors. In the first such zone, up to 10% of the polymerization is carried out, with agitation, preferably at a stirring energy per unit volume of 0.1 to 5 kWm-3. Wall encrustation is substantially prevented, particularly in the second reaction zone, through the use of smooth, non-metallic surfaces in the zone.
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公开(公告)号:ZA807077B
公开(公告)日:1981-11-25
申请号:ZA807077
申请日:1980-11-14
Applicant: HOECHST AG
Inventor: WEINLICH J , BRANDRUP J , FISCHER E
IPC: C08F14/00 , C07D265/34 , C07D265/36 , C07D265/38 , C08F2/00 , C08F2/16 , C08F2/18 , C09B19/00 , C07D , C08F
Abstract: A process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in a reactor in which the internal walls, and the other parts on which polymer deposits can form, have a covering which contains a representative compound such as depicted by the formula extensive suppression of polymer crusts is thereby obtained.
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公开(公告)号:ZA8002805B
公开(公告)日:1981-06-24
申请号:ZA8002805
申请日:1980-05-09
Applicant: HOECHST AG
Inventor: FISCHER E , WEINLICH J , BRANDRUP J
IPC: C08F14/00 , C07D265/38 , C08F2/00 , C07D
CPC classification number: C08F2/004
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公开(公告)号:SE407411B
公开(公告)日:1979-03-26
申请号:SE7507121
申请日:1975-06-19
Applicant: HOECHST AG
Inventor: WEINLICH J , BOTSCH F
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公开(公告)号:SE7602344L
公开(公告)日:1976-09-08
申请号:SE7602344
申请日:1976-02-25
Applicant: HOECHST AG
Inventor: TZSCHOPPE E , WEINLICH J
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