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公开(公告)号：AU618647B2
公开(公告)日：1992-01-02
申请号：AU4573189
申请日：1989-12-01
Applicant: HOECHST AG
Inventor： ANTBERG MARTIN , BOHM LUDWIG , ROHRMANN JURGEN
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公开(公告)号：ES2019123B3
公开(公告)日：1991-06-01
申请号：ES88108658
申请日：1988-05-31
Applicant: HOECHST AG
Inventor： ANTBERG MARTIN , LUKER HARTMUT , BOHM LUDWIG
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公开(公告)号：AU4939790A
公开(公告)日：1990-08-23
申请号：AU4939790
申请日：1990-02-14
Applicant: HOECHST AG
Inventor： WINTER ANDREAS , DOLLE VOLKER , ROHRMANN JURGEN , ANTBERG MARTIN , BOHM LUDWIG , SPALECK WALTER
IPC: C08F4/58 , C08F4/60 , C08F4/602 , C08F4/62 , C08F4/639 , C08F4/6392 , C08F10/00 , C08F210/06 , C08F4/76
Abstract: Copolymerisation of propylene with small amounts of other olefins in the presence of a catalyst comprising a metallocene of the formula I … … and an aluminoxane gives a polyolefin wax in high yield. The wax is formed as compact spherical particles having a narrow particle size distribution and high bulk density. In addition, the physical data of this wax, for example the hardness, melting point, melt viscosity, etc., are variable within broad limits. … The polymer chains have a similar and uniform structure, and the comonomer units are arranged predominantly individually between polypropylene blocks.
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公开(公告)号：CA2010064A1
公开(公告)日：1990-08-15
申请号：CA2010064
申请日：1990-02-14
Applicant: HOECHST AG
Inventor： WINTER ANDREAS , DOLLE VOLKER , ROHRMANN JURGEN , ANTBERG MARTIN , BOHM LUDWIG , SPALECK WALTER
IPC: C08F4/58 , C08F4/60 , C08F4/602 , C08F4/62 , C08F4/639 , C08F4/6392 , C08F10/00 , C08F210/06 , C08F2/00 , C08F210/00 , C08F210/04 , C08F212/06 , C08F210/14
Abstract: HOE 89/F 052 Polypropylene wax and process for the production thereof Polyolefin waxes are obtained in high yield by copolymerizing propylene with small amounts of other olefins in the presence of a catalyst composed of a metallocene of the formula I: (I) and an alumoxane The waxes are produced as compact, spherical particles having a narrow particle size distribution and high apparent density. In addition, the physical data of these waxes such as, for example, hardness, melting point, melt viscosity etc., are variable within wide limits. The polymer chains are noteworthy for a homogeneous and uniform structure, the comonomer units being predominantly arranged individually between polypropylene blocks.
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公开(公告)号：AU3372578A
公开(公告)日：1979-09-06
申请号：AU3372578
申请日：1978-03-01
Applicant: HOECHST AG
Inventor： BOHM LUDWIG
Abstract: The concentration of organoaluminum compounds in their solutions can be determined quantitatively, even in a range of less than 10 mmols/dm3, when adding to the solution to be analyzed instantaneously an excess of reactant and when measuring the produced reaction heat.
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Patent Agency Ranking
公开(公告)号：HK1006722A1
公开(公告)日：1999-03-12
申请号：HK98106077
申请日：1998-06-23
Applicant: HOECHST AG
Inventor： HESS REINER , VOIGT HARTMUT , HERRMANN HANS-FRIEDRICH , BOHM LUDWIG
IPC: C08F4/649 , B01J19/00 , B01J19/18 , C08F2/00 , C08F2/14 , C08F2/18 , C08F4/60 , C08F4/62 , C08F4/622 , C08F4/626 , C08F4/6592 , C08F10/00 , C08F10/02 , C08F110/06 , C08F210/16 , C08F
Abstract: Polymerisation of olefins in a low-boiling suspension medium, in particular propane, and dissipation of the heat of reaction by evaporative cooling in the presence of a metallocene catalyst gives polyolefin waxes without wall deposits being able to impair the cooling of the reactor.
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公开(公告)号：SG52626A1
公开(公告)日：1998-09-28
申请号：SG1996006996
申请日：1994-02-24
Applicant: HOECHST AG
Inventor： BREUERS WERNER , LECHT RAINER , BOHM LUDWIG
IPC: C08F4/658 , B01J8/00 , B01J8/24 , B01J8/26 , C08F2/34 , C08F4/02 , C08F4/60 , C08F4/645 , C08F4/646 , C08F4/654 , C08F10/00
Abstract: Bead-form polymers can be obtained in the polymerisation of alpha-olefins by using a highly active, spherical Ziegler catalyst based on a dialkylmagnesium compound. A further advantage of the novel catalyst is the high catalyst activity, meaning that only very small amounts of the catalyst are necessary for the polymerisation. The residual content of titanium and/or zirconium in the polymers prepared according to the invention is less than 10 ppm. Its very good hydrogen sensitivity means that the catalyst is particularly suitable in two-step processes for the preparation of polymers having a broad, bimodal molecular weight distribution. The replacement of sulphur-containing electron donors, such as diethyl sulphite, by alcohols, such as ethanol, results in lower odour nuisance and a broadened range of possible applications of the polymer. The spherical shape of the particles and the consequent very good flow properties of the polymers and copolymers mean considerable simplification and advantages during handling, drying and processing.
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公开(公告)号：SG52612A1
公开(公告)日：1998-09-28
申请号：SG1996006722
申请日：1992-06-04
Applicant: HOECHST AG
Inventor： BOHM LUDWIG , ENDERLE HANS-FREIDER , JASTROW HORST
Abstract: A polyethylene moulding composition which comprises from 50 to 80% by weight of a HD polyethylene having a very broad bimodal molecular weight distribution and from 20 to 50% by weight of an LLD polyethylene or LD polyethylene, gives pipes, sheets and films having very good long-term and low-temperature properties.
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公开(公告)号：IN179295B
公开(公告)日：1997-09-20
申请号：IN342MA1991
申请日：1991-04-30
Applicant: HOECHST AG
Inventor： BOHM LUDWIG
IPC: C08F10/00
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公开(公告)号：NO961684A
公开(公告)日：1996-10-29
申请号：NO961684
申请日：1996-04-26
Applicant: HOECHST AG
Inventor： BERTHOLD JOACHIM , BOHM LUDWIG , BREUERS WERNER , ENDERLE JOHANNES-FRIEDRICH , FLEISSNER MANFRED , LECHT TAINER , LUKER HARTMUT , SCHULTE ULRICH , BROMSTRUP HEINER
CPC classification number: F16L9/127 , C08L23/0807 , F16L9/12 , Y10S138/07 , Y10T428/1352 , Y10T428/139 , Y10T428/1397
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