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公开(公告)号：CA2272863C
公开(公告)日：2007-04-24
申请号：CA2272863
申请日：1997-11-21
Applicant: BASF AG
Inventor： KELLER ANDREAS , TSCHANG CHUNG-JI , HARTMANN JURGEN , LAWRENZ SVEN , SCHMIDT-THUMMES JURGEN , BAUER GERHARD , BACHER REINHARD
Abstract: The invention relates to a method for producing a polymer dispersion by radical polymerization of an aqueous monomer emulsion in a semibatch process wherein the monomer emulsion is produced continuously in accordance with consumption, and wherein the components of the monomer emulsion are mixed in at least one mixing apparatus to give the emulsion.
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公开(公告)号：ES2163211T3
公开(公告)日：2002-01-16
申请号：ES97953687
申请日：1997-11-21
Applicant: BASF AG
Inventor： KELLER ANDREAS , LAWRENZ SVEN , BAUER GERHARD , SCHMIDT-THUMMES JURGEN , BACHER REINHARD , HARTMANN JURGEN
Abstract: A polymer dispersion is prepared by free radical polymerization of an aqueous monomer emulsion by a process in which the monomer emulsion is prepared continuously at the rate of consumption.
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公开(公告)号：FR2784603A1
公开(公告)日：2000-04-21
申请号：FR9912565
申请日：1999-10-08
Applicant: BASF AG
Inventor： DOBBELAAR JOHANNES , REHMER GERD , HUMMER WOLFGANG , BACHER REINHARD
Abstract: A method of emptying vessels containing dispersions, solutions or suspensions of polymers in which during the emptying process the liquid medium also used to take up the polymers into the dispersion, solution or suspension is passed into the space within the vessel that is not filled by the solution, dispersion or suspension, wherein the liquid medium used to take up the polymers into the dispersion, solution or suspension is introduced in vapor form.
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公开(公告)号：AU5750698A
公开(公告)日：1998-06-22
申请号：AU5750698
申请日：1997-11-21
Applicant: BASF AG
Inventor： KELLER ANDREAS , LAWRENZ SVEN , BAUER GERHARD , SCHMIDT-THUMMES JURGEN , BACHER REINHARD , HARTMANN JURGEN , TSCHANG CHUNG-JI
Abstract: A polymer dispersion is prepared by free radical polymerization of an aqueous monomer emulsion by a process in which the monomer emulsion is prepared continuously at the rate of consumption.
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公开(公告)号：AU3849997A
公开(公告)日：1998-03-06
申请号：AU3849997
申请日：1997-07-29
Applicant: BASF AG
Inventor： SCHULER BERNHARD , AUCHTER GERHARD , TURK JOHANNES , NOORDIJK RIK , DOBBELAAR JOHANNES , BACHER REINHARD , HUMMER WOLFGANG
IPC: C08L33/06 , C08F212/00 , C08F220/00 , C08F220/12 , C08F220/18 , C09J7/02 , C09J7/04 , C09J133/06 , G09F3/10
Abstract: A polymer which is composed offrom 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a),from 0.02 to 1.8% by weight of a vinyl-aromatic compound b),from 0 to 10% by weight of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydride c), andfrom 0 to 40% by weight of other monomers d), the percentages by weight being based on the polymer.
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Patent Agency Ranking
公开(公告)号：ES2158575T3
公开(公告)日：2001-09-01
申请号：ES97936671
申请日：1997-07-29
Applicant: BASF AG
Inventor： SCHULER BERNHARD , AUCHTER GERHARD , TURK JOHANNES , NOORDIJK RIK , DOBBELAAR JOHANNES , BACHER REINHARD
IPC: C08F220/12 , C09J7/04 , C09J133/06
Abstract: A polymer which containsfrom 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a),from 0.02 to 10% by weight of a vinylaromatic compound b),from 0 to 10% by weight of an ethylenically unsaturated acid or of an ethylenically unsaturated acid anhydride c), andfrom 0 to 40% by weight of further monomers d), the percentages by weight being based on the polymer and the polymer being obtainable by polymerizing the monomers a) to d) in at least two stages which differ in their content of vinylaromatic compounds in such a way that the content of vinylaromatic compounds in the vinylaromatics-rich stage is at least 5 times as great as in the low-vinylaromatics stage.
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公开(公告)号：FR2784603B1
公开(公告)日：2001-07-20
申请号：FR9912565
申请日：1999-10-08
Applicant: BASF AG
Inventor： DOBBELAAR JOHANNES , REHMER GERD , HUMMER WOLFGANG , BACHER REINHARD
Abstract: A method of emptying vessels containing dispersions, solutions or suspensions of polymers in which during the emptying process the liquid medium also used to take up the polymers into the dispersion, solution or suspension is passed into the space within the vessel that is not filled by the solution, dispersion or suspension, wherein the liquid medium used to take up the polymers into the dispersion, solution or suspension is introduced in vapor form.
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公开(公告)号：AU747573B2
公开(公告)日：2002-05-16
申请号：AU5750698
申请日：1997-11-21
Applicant: BASF AG
Inventor： KELLER ANDREAS , LAWRENZ SVEN , BAUER GERHARD , SCHMIDT-THUMMES JURGEN , BACHER REINHARD , HARTMANN JURGEN , TSCHANG CHUNG-JI
Abstract: A polymer dispersion is prepared by free radical polymerization of an aqueous monomer emulsion by a process in which the monomer emulsion is prepared continuously at the rate of consumption.
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公开(公告)号：ID24215A
公开(公告)日：2000-07-13
申请号：ID20000486
申请日：1998-09-17
Applicant: BASF AG
Inventor： RUPANER ROBERT , LAWRENZ SVEN , DOBBELAAR JOHANNES , BAUER GERHARD , MUESLER FRANSZ-JOSEF , KIRCHNER WERNER , MORRISON B R , NAHSTOLL JURGRN , MEISTER MARTIN , BACHER REINHARD , HUBINGER WOLFGANG , SCHUMACHER GERHARD
IPC: C08F6/00
Abstract: A process is described for reducing the residual monomer content in a liquid solution, mixture, melt, suspension or dispersion of a polymer by postpolymerization with addition of a redox initiator system at a reaction temperature appropriate to it and with an extremely short mixing time of the liquid system in the production reactor by metering-gradually, in portions or continuously-at least one of the redox initiator components required to initiate polymerization of the residual monomers over a period (metering time) which is from about 10 to 250 times the mixing time of the liquid system in said reactor.
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公开(公告)号：AU3941697A
公开(公告)日：1998-03-06
申请号：AU3941697
申请日：1997-07-29
Applicant: BASF AG
Inventor： SCHULER BERNHARD , AUCHTER GERHARD , TURK JOHANNES , NOORDIJK RIK , DOBBELAAR JOHANNES , BACHER REINHARD , HUMMER WOLFGANG
IPC: C08F220/12 , C09J7/04 , C09J133/06
Abstract: A polymer which containsfrom 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a),from 0.02 to 10% by weight of a vinylaromatic compound b),from 0 to 10% by weight of an ethylenically unsaturated acid or of an ethylenically unsaturated acid anhydride c), andfrom 0 to 40% by weight of further monomers d), the percentages by weight being based on the polymer and the polymer being obtainable by polymerizing the monomers a) to d) in at least two stages which differ in their content of vinylaromatic compounds in such a way that the content of vinylaromatic compounds in the vinylaromatics-rich stage is at least 5 times as great as in the low-vinylaromatics stage.
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