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公开(公告)号:JPH10114807A
公开(公告)日:1998-05-06
申请号:JP20926397
申请日:1997-08-04
Applicant: BASF AG
Inventor: WUENSCH JOSEF DR , SCHIESL MICHAEL , DIENER RALPH DR
IPC: C08F4/642 , B01J19/20 , B01J19/24 , C08F4/659 , C08F4/6592 , C08F12/04 , C08F112/00 , C08F112/08
Abstract: PROBLEM TO BE SOLVED: To obtain a process for producing a substantially syndiotactic semicrystalline polymer from a vinylarom. monomer. SOLUTION: This process is characterized in that it has, as the constituents, a vinyl compd., a metallocene complex compd. as the catalyst, and at least one cocatalyst selected from among a strong neutral Lewis acid, an ionic compd. having a Lewis acid cation, and an ionic compd. having a Broensted acid as the cation and that the constituents are premixed before being introduced into a polymerizer 6.
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公开(公告)号:JPH1057450A
公开(公告)日:1998-03-03
申请号:JP19539097
申请日:1997-07-22
Applicant: BASF AG
Inventor: ZETTLER HANS DIETER , SCHIESL MICHAEL , BREITENBACH JOERG DR , ROSENBERG JOERG DR
Abstract: PROBLEM TO BE SOLVED: To embody an easy and cost effective process for producing solid medicine moldings particularly to specified shapes by dividing extrudate to molded goods in a first stage and rounding these molded goods in a plastic state in a second stage. SOLUTION: A mixture composed of a polymer/active component for production of tablets is produced by a simultaneously rotating two-screw extrusion molding machine. The plastic compsn. is extruded and is received by a circulating belt conveyor. A sensor operates a cutting device when the sensor checks the start point of the extrudate. The columnar molded goods 13 are temporarily stored in a collector 18 and are, in succession, supplied through a drilling slide gate 20 to a rounding tool 21. An arc-shaped driver 22 supports and moves the molded goods 13 during this time and rotates the molded goods round the longitudinal axis. The flat ends of the molded goods pass the heated rounding tool during this time. Two metallic jaws are moved in the same direction as the direction of the longitudinal axis of the molded goods 13 and the center of the dents of the segment type of a spherical shape is arranged on the longitudinal axis.
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公开(公告)号:DE19633404A1
公开(公告)日:1998-02-26
申请号:DE19633404
申请日:1996-08-19
Applicant: BASF AG
Inventor: BRUCHMANN BERND DR , REIF MARTIN DR , HOFSCHEUER WERNER , JAEHME JOACHIM DR , LANGER WERNER DR , RENZ HANS DR , MOHRHARDT GUENTER , SCHIESL MICHAEL
IPC: C07C273/18 , C07C275/62 , C08G18/08 , C08G18/30 , C08G18/32 , C08G18/78 , C09D175/12 , C08J9/00
Abstract: A process is disclosed for producing a polyisocyanate containing biuret groups from at least one aliphatic, cycloaliphatic or araliphatic diisocyanate or a mixture of two or more such substances, and from at least one amine or water or a mixture of water and at least one amine as reactants. The reactants are mixed together and made to react in a mixing element with a high shearing effect.
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公开(公告)号:DE19539362A1
公开(公告)日:1997-04-24
申请号:DE19539362
申请日:1995-10-23
Applicant: BASF AG
Inventor: BREITENBACH JOERG DR , HAERTL AXEL PAUL DR , MAIER WERNER , ROSENBERG JOERG DR , SCHIESL MICHAEL , ZETTLER HANS DIETER
Abstract: The invention concerns a method of producing medicaments in solid form by mixing and melting at least one pharmacologically acceptable polymer binder, at least one pharmaceutical active substance and optionally conventional pharmaceutical additives in the absence of a solvent to form a plastic mixture, and shaping this mixture to form the desired medicament, the mixing, melting and shaping steps being carried out continuously and separately. The method according to the invention enables high-quality medicaments to be produced in a simple and careful manner.
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公开(公告)号:DE19539363A1
公开(公告)日:1997-04-24
申请号:DE19539363
申请日:1995-10-23
Applicant: BASF AG
Inventor: BREITENBACH JOERG DR , HAERTL AXEL PAUL DR , ROSENBERG JOERG DR , SCHIESL MICHAEL , ZETTLER HANS DIETER
Abstract: The invention concerns a method of producing medicaments in solid form by mixing and melting at least one pharmacologically acceptable polymer binder, at least one pharmaceutical active substance and optionally conventional pharmaceutical additives in the absence of a solvent to form a plastic mixture, and shaping the mixture to form the desired medicament, mixing and melting being carried out in separate stages. The method according to the invention enables high-quality medicaments to be produced in a simple and careful manner.
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公开(公告)号:DE19539360A1
公开(公告)日:1997-04-24
申请号:DE19539360
申请日:1995-10-23
Applicant: BASF AG
Inventor: BREITENBACH JOERG DR , HAERTL AXEL PAUL DR , ROSENBERG JOERG DR , SCHIESL MICHAEL , ZETTLER HANS DIETER
Abstract: The invention concerns a method of producing medicaments in solid form by mixing at least one pharmacologically acceptable polymer binder, at least one pharmaceutical active substance and optionally conventional pharmaceutical additives, extruding the mixture and shaping the medicament, a pre-mixture being prepared from the components and fed into the extruder. The method according to the invention enables high-quality medicaments to be produced in a simple and careful manner.
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公开(公告)号:DE19631365A1
公开(公告)日:1998-02-05
申请号:DE19631365
申请日:1996-08-02
Applicant: BASF AG
Inventor: WUENSCH JOSEF DR , SCHIESL MICHAEL , DIENER RALPH DR
IPC: C08F4/642 , B01J19/20 , B01J19/24 , C08F4/659 , C08F4/6592 , C08F12/04 , C08F112/00 , C08F112/08 , C08F12/00
Abstract: A process for the production of an essentially syndiotactic and partially crystalline polymer (I) containing vinyl aromatic monomers is claimed. (I) is prepared form a reaction mixture containing vinyl aromatic compounds (II), metallocene complexes (III) and one or co-catalysts (IV) consisting of strong, neutral Lewis acid or Bronsted acid cations. The components are mixed prior to addition to the reactor. An apparatus is also claimed comprising a reservoir to contain a mixture of (II) and (IV), a reservoir to contain (III) plus means to dose the contents of the 2 reservoirs to a pre-mixer that is connected to the reactor vessel.
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公开(公告)号:DE19645948A1
公开(公告)日:1998-05-14
申请号:DE19645948
申请日:1996-11-07
Applicant: BASF AG
Inventor: BAUMGAERTEL MICHAEL DR , DEMBEK GERHARD DR , HAHN KLAUS DR , HOLOCH JAN DR , HUSEMANN WOLFRAM DR , KAEMPFER KNUT DR , LAY PETER N , RUECK SWEN , SCHIESL MICHAEL , WITT MICHAEL DR
IPC: C08F257/02 , C08J9/20 , C08F12/08 , C08L25/06
Abstract: The invention concerns a continuous process for preparing expandible styrene polymers by polymerizing styrene in the presence of expanding agents in three stages: a) preparing a solution of polystyrene in styrene; b) dispersing the solution in an aqueous phase; and c) continuously polymerizing out the prepolymer in an aqueous suspension.
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公开(公告)号:DE19629753A1
公开(公告)日:1998-01-29
申请号:DE19629753
申请日:1996-07-23
Applicant: BASF AG
Inventor: ZETTLER HANS DIETER , SCHIESL MICHAEL , BREITENBACH JOERG DR , ROSENBERG JOERG DR
Abstract: Production of solid medicament comprises mixing and melting at least one polymeric binder, at least one pharmaceutical active agent (A) and optionally conventional additives, in the absence of solvents, to give a plastic mixture and shaping the mixture by extrusion. The shaping is carried out in two stages: (i) dividing the extrudate into shaped articles; and (ii) rounding the articles while in a plastic state.
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公开(公告)号:DE19539361A1
公开(公告)日:1997-04-24
申请号:DE19539361
申请日:1995-10-23
Applicant: BASF AG
Inventor: BREITENBACH JOERG DR , HAERTL AXEL PAUL DR , HOFMANN JUERGEN , ROSENBERG JOERG DR , SCHIESL MICHAEL , ZETTLER HANS DIETER
IPC: A61J3/10 , A61K9/20 , A61K9/24 , A61K9/28 , A61K31/07 , A61K31/167 , A61K31/192 , A61K31/277 , A61K31/355 , A61K31/375 , A61K31/401 , A61K31/4422 , A61K31/52 , A61K31/522 , A61K31/60 , A61K31/19
Abstract: The invention concerns a method of producing multi-layer medicaments in solid form for oral or rectal administration. At least two substances, which each comprise a thermoplastic, pharmacologically acceptable polymer binder which is soluble or can swell in a physiological environment, at least one of the substances comprising a pharmaceutical active substance, are coextruded and the coextruded multi-layer material is shaped to form the desired medicament.
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