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公开(公告)号:SE7502296A
公开(公告)日:1976-08-02
申请号:SE7502296
申请日:1975-02-28
Applicant: HOECHST AG
Inventor: RUST K , SCHROTT E , STRAMETZ H , KABLITZ H-J
CPC classification number: C08F10/00 , Y10S526/903 , Y10S526/907 , C08F4/655
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公开(公告)号:ZA792947B
公开(公告)日:1980-07-30
申请号:ZA792947
申请日:1979-06-14
Applicant: HOECHST AG
Inventor: MAYER G , FISCHER E , STRAMETZ H
Abstract: During the recovery of the unreacted propylene from the mother liquor obtained in the polymerization of liquid propylene, the major part of the propylene is evaporated in a first evaporation step at a low temperature and the remaining part is evaporated in a second evaporator at a high temperature. In this way an early agglomerization of the atactic and/or low-molecular weight polymer dissolved in the mother liquor and fouling of the heat exchanger tubes and/or of the column trays is avoided.
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公开(公告)号:IN142675B
公开(公告)日:1977-08-13
申请号:IN351CA1975
申请日:1975-02-24
Applicant: HOECHST AG
Inventor: RUST K , STRAMETZ H , KABLITZ H-J , SCHROTT E
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公开(公告)号:SE7502296L
公开(公告)日:1976-08-02
申请号:SE7502296
申请日:1975-02-28
Applicant: HOECHST AG
Inventor: RUST K , SCHROTT E , STRAMETZ H , KABLITZ H-J
Abstract: A catalyst of high activity and stereospecificity in alpha -olefin polymerization is obtained when titanium trichloride, prepared from titanium tetrachloride by reduction with an aluminum alkyl halide, is thermally treated, first with an ether in the presence of a cyclopolyene and the solid reaction product is then treated with an aluminum alkyl halide in the presence of a small amount of a cyclopolyene and/or an olefin. With the catalyst obtained high space-time yields of alpha -olefin polymers and copolymers can be produced.
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公开(公告)号:ZA7502172B
公开(公告)日:1976-04-28
申请号:ZA7502172
申请日:1975-04-07
Applicant: HOECHST AG
Inventor: STRAMETZ H , LEUGERING H , RUST K , ENGELMANN M
IPC: C08L23/00 , C08F2/00 , C08F2/14 , C08F297/00 , C08F297/08 , C08L7/00 , C08L21/00 , C08L23/06 , C08L23/08 , C08L23/10 , C08L23/12 , C08L23/16 , C08L101/00 , C08F
CPC classification number: C08F297/086 , C08L23/06 , C08L23/0815 , C08L23/10 , C08L23/16 , C08L2205/03 , C08L2308/00 , C08L23/12 , C08L2666/02
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公开(公告)号:ZA7501245B
公开(公告)日:1976-02-25
申请号:ZA7501245
申请日:1975-02-28
Applicant: HOECHST AG
Inventor: RUST K , SCHROTT E , STRAMETZ H , KABLITZ H
CPC classification number: C08F10/00 , Y10S526/903 , Y10S526/907 , C08F4/655
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公开(公告)号:ZA7501244B
公开(公告)日:1976-02-25
申请号:ZA7501244
申请日:1975-02-28
Applicant: HOECHST AG
Inventor: SCHROTT E , STRAMETZ H , RUST K , KABLITZ H
CPC classification number: C08F10/00 , Y10S526/903 , Y10S526/907 , C08F4/655
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公开(公告)号:NO750687A
公开(公告)日:1975-09-23
申请号:NO750687
申请日:1975-02-28
Applicant: HOECHST AG
Inventor: RUST K , SCHROTT E , STRAMETZ H , KABLITZ H J
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公开(公告)号:SE7502294A
公开(公告)日:1975-09-02
申请号:SE7502294
申请日:1975-02-28
Applicant: HOECHST AG
Inventor: RUST K , SCHROTT E , STRAMETZ H , WALTER D , KABLITZ H-J
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公开(公告)号:ZA793252B
公开(公告)日:1980-07-30
申请号:ZA793252
申请日:1979-06-29
Applicant: HOECHST AG
Inventor: FISCHER E , STRAMETZ H , STROER F , MAYER G
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