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1.发明公开Verfahren zur Herstellung von pulverförmigen wasserlöslichen Polymerisaten und deren Verwendung. 失效一种用于粉状的水溶性聚合物和它们的使用的制备方法。
公开(公告)号：EP0205910A2
公开(公告)日：1986-12-30
申请号：EP86106760
申请日：1986-05-17
Applicant: BASF AG
Inventor： MESSMER KARLHEINZ DR , HENNIG KARL , DENZINGER WALTER , HETTCHE ALBERT DR , TRIESELT WOLFGANG DR , RAUBENHEIMER HANS-JURGEN
CPC classification number: C08F2/10 , Y10S526/909
Abstract: Verfahren zur Herstellung von pulverfömigen wasserlöslichen Polymerisaten durch Polymerisieren von wasserlöslichen ethylenisch ungesättigen Monomeren in einem Pulverbett in Gegenwart von Polymerisationsinitiatoren und Wasser unter Aufrechterhaltung des Pulverzustands, Abführen der Polymerisationswärme durch Abdestillieren von Wasser und Umwälzung der Reaktionsmasse, wobei man als Polymerisationsinitiatoren wasserunlösliche, bei Temperaturen von 20°C flüssige organische Peroxide allein oder in Mischung mit bis zu 50 Gew.%, bezogen auf die Initiatormischung, an wasserlöslichen, organischen Azostartern und/oder wasserunlöslichen, bei 20°C festen, Peroxigruppen enthaltenden Verbindungen einsetzt.
Abstract translation: 一种用于通过在聚合引发剂存在下和水在粉末床聚合水溶性烯属不饱和单体，同时保持粉末状态下，通过蒸馏将反应物质，得到作为聚合引发剂的水不溶性的的水和循环去除聚合热，在20的温度下制备pulverfömigen水溶性聚合物的方法 ℃下重量单独或与高达50％的混合物的液体有机过氧化物，基于该引发剂混合物，使用水溶性有机偶氮引发剂和/或固体在20℃下不溶于水的，含有过氧化合物。
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公开(公告)号：DE3574259D1
公开(公告)日：1989-12-21
申请号：DE3574259
申请日：1985-09-18
Applicant: BASF AG
Inventor： TSCHANG CHUNG-JI DR , MESSMER KARLHEINZ DR , DENZINGER WALTER
IPC: C08F218/00 , C08F2/12 , C08F2/36 , C08F2/44 , C08F20/00 , C08F20/52 , C08F26/00 , C08F26/10 , C08F218/02 , C08F218/04 , C08F220/00 , C08F220/04 , C08F220/06 , C08F220/10 , C08F220/56 , C08F226/02 , C08F226/10
Abstract: Insoluble polymer powders which are only slightly swellable are prepared by polymerization of N-vinylpyrrolidone or a mixture of (a) an N-vinylcarboxamide, acrylamide, methacrylamide, acrylic acid, methacrylic acid, acrylates, methacrylates and/or a vinyl ester and (b) from 0.1 to 10% by weight, based on the total amount of monomers, of, as a crosslinking agent, a compound possessing two or more ethylenically unsaturated double bonds, in a powder bed in the presence of a heat-transfer medium and in the absence of oxygen and polymerization initiators, at from 90 DEG to 220 DEG C., the powder state being maintained, the reaction mass being circulated and the heat-transfer medium evaporated from the polymerization zone. The resulting polymers are used as adsorbents, as formulation assistants for crop protection agents or as ion exchangers.
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公开(公告)号：DE3434137A1
公开(公告)日：1986-03-20
申请号：DE3434137
申请日：1984-09-18
Applicant: BASF AG
Inventor： TSCHANG CHUNG-JI DR , MESSMER KARLHEINZ DR , DENZINGER WALTER
IPC: C08F218/00 , C08F2/12 , C08F2/36 , C08F2/44 , C08F20/00 , C08F20/52 , C08F26/00 , C08F26/10 , C08F218/02 , C08F220/00 , C08F220/10 , C08F220/56 , C08F226/06 , C08F226/10 , B01J20/26 , A01N25/10
Abstract: Insoluble polymer powders which are only slightly swellable and are based on N-vinylpyrrolidone are prepared by polymerization of N-vinylpyrrolidone or a mixture of this with copolymerizable monomers and from 0.1 to 10% by weight, based on the total amount of monomers, of a crosslinking agent in a powder bed in the presence of a heat-transfer medium, which is inert to the reactants, and in the absence of oxygen and polymerization initiators, at from 90 DEG to 220 DEG C., while maintaining the powder state, circulating the reaction mass and evaporating the heat-transfer medium from the polymerization zone. The resulting insoluble polymers which are only slightly swellable are used as adsorbents or formulation assistants for fertilizers and crop protection agents.
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公开(公告)号：DE3666778D1
公开(公告)日：1989-12-14
申请号：DE3666778
申请日：1986-04-17
Applicant: BASF AG
Inventor： HENNIG KARL , MESSMER KARLHEINZ DR , HOERDT GUENTER , KLEINPETER GERHARD , HOFFMANN WERNER , RAUBENHEIMER HANS-JUERGEN
Abstract: A horizontal solid-bed polymerization reactor which is divided into a plurality of zones, for example a reaction zone, an after-reaction zone, a heating zone and a product discharge zone and possesses inlet and outlet openings for feeding substances into the zones and/or removing substances from the zones, the zones being separated from one another over a part of the reactor cross-section by means of weirs, wherein two drive shafts which are independent of one another and possess mixing elements are introduced into the solid-bed polymerization reactor in the middle.
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公开(公告)号：DE3320864A1
公开(公告)日：1984-12-13
申请号：DE3320864
申请日：1983-06-09
Applicant: BASF AG
Inventor： HENNIG KARL , MESSMER KARLHEINZ DR , HARTMANN HEINRICH DR
IPC: C08F2/36 , C08F2/38 , C08F20/06 , C11D3/37 , D21H19/58 , C08F220/38 , C08F220/58 , C08F222/02 , C08F222/06 , C09B67/04 , C09B67/46 , C09C3/10 , D21H3/80
Abstract: A process for the preparation of pulverulent polymers based on water-soluble, ethylenically unsaturated monomers by polymerising acid group-containing monomers dissolved in water in a powder bed in the presence of conventional polymerisation initiators while maintaining the powder state, dissipating the heat of polymerisation by removing the solvent by distillation and circulating the reaction mass, where from 40 to 95% of the acid groups of the monomers are neutralised and the polymerisation is carried out in the presence of from 3 to 10 mol %, based on the monomers, of 2-mercaptoethanol as regulator. The homopolymers and copolymers obtained in this way are used as grinding auxiliaries and dispersants for pigments and as encrustation inhibitors and antigreying agents (antiredeposition agents) for detergents.
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Patent Agency Ranking
公开(公告)号：DE3244989A1
公开(公告)日：1984-06-07
申请号：DE3244989
申请日：1982-12-04
Applicant: BASF AG
Inventor： HENNIG KARL , MESSMER KARLHEINZ DR , HARTMANN HEINRICH DR
IPC: C08F2/00 , C08F2/38 , C08F20/00 , C08F20/06 , C08F20/38 , C08F20/52 , C08F220/00 , C08F220/04 , C11D3/37 , D21H17/37 , D21H19/58 , C08F20/02 , D21H3/38
Abstract: A process for the preparation of pulverulent polymers based on water-soluble, ethylenically unsaturated monomers by polymerising monomers containing acid groups which are dissolved in a monohydric C1- to C8-alcohol, dimethylformamide, dimethyl sulphoxide or water, in a powder bed in the presence of conventional polymerisation initiators while maintaining the powder state, dissipating the heat of polymerisation by removing the solvent by distillation, and circulating the reaction material, where from 40 to 95% of the acid groups of the monomers have been neutralised and the polymerisation is carried out in the presence of from 3 to 10 mol %, based on the monomers, of a thiocarboxylic acid, a metal salt or chelate or an enol ether as regulator. The resultant homopolymers and copolymers are used as grinding aids and dispersants for pigments and as an encrustation inhibitor and antiredeposition agent (antigreying agent) for detergents.
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公开(公告)号：AT47800T
公开(公告)日：1989-11-15
申请号：AT86105352
申请日：1986-04-17
Applicant: BASF AG
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公开(公告)号：DE3514367A1
公开(公告)日：1986-10-23
申请号：DE3514367
申请日：1985-04-20
Applicant: BASF AG
Inventor： HENNIG KARL , MESSMER KARLHEINZ DR , HOERDT GUENTER , KLEINPETER GERHARD , HOFFMANN WERNER , RAUBENHEIMER HANS-JUERGEN
Abstract: A horizontal solid-bed polymerization reactor which is divided into a plurality of zones, for example a reaction zone, an after-reaction zone, a heating zone and a product discharge zone and possesses inlet and outlet openings for feeding substances into the zones and/or removing substances from the zones, the zones being separated from one another over a part of the reactor cross-section by means of weirs, wherein two drive shafts which are independent of one another and possess mixing elements are introduced into the solid-bed polymerization reactor in the middle.
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公开(公告)号：DE3263839D1
公开(公告)日：1985-07-04
申请号：DE3263839
申请日：1982-02-26
Applicant: BASF AG
Inventor： MESSMER KARLHEINZ DR , FISCHER HERMANN DR , HARTMANN HEINRICH DR , DENZIGER WALTER , SCHNEIDER ROLF DR , WULZ KLAUS DR , RAUBENHEIMER HANS-JUERGEN
IPC: C08F20/00 , C08F20/02 , C08F210/00 , C08F222/06 , C09K23/52 , C11D3/37 , D21H17/43 , D21H19/58 , D21H3/38
Abstract: Maleic anhydride copolymer powders are prepared by a process wherein a solution or dispersion of maleic anhydride in an alkyl vinyl ether and/or an alkene, containing from 3 to 25 moles of the alkyl vinyl ether and/or alkene per mole of maleic anhydride, is brought into contact with a powder bed under polymerization conditions, and is polymerized in the bed while the reaction mass is circulated and the powder state is maintained, and the heat generated during polymerization is removed by evaporating excess monomer which boils lower than maleic anhydride.
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公开(公告)号：DE3662897D1
公开(公告)日：1989-05-24
申请号：DE3662897
申请日：1986-05-17
Applicant: BASF AG
Inventor： MESSMER KARLHEINZ DR , HENNIG KARL , DENZINGER WALTER , HETTCHE ALBERT DR , TRIESELT WOLFGANG DR , RAUBENHEIMER HANS-JURGEN
Abstract: Water-soluble polymer powders are prepared by polymerizing water-soluble ethylenically unsaturated monomers in a powder bed in the presence of polymerization initiators and water while maintaining the powder state, removing the heat of polymerization by distilling off water and circulating the reaction mixture, by a process in which water-insoluble organic peroxides which are liquid at 20 DEG C. are used alone or as a mixture with up to 50% by weight, based on the initiator mixture, of water-soluble, organic azo initiators and/or water-insoluble solid peroxy-containing compounds, as polymerization initiators.
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