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    Verfahren zur Herstellung von pulverförmigen wasserlöslichen Polymerisaten und deren Verwendung.
    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

    IPC: C08F2/00 ,  C08F2/10 ,  C08F2/36 ,  C08F4/00 ,  C08F4/04 ,  C08F4/28 ,  C08F4/32 ,  C08F2/34

    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。

    3.
    发明专利
    未知

    公开(公告)号：DE59107187D1

    公开(公告)日：1996-02-15

    申请号：DE59107187

    申请日：1991-05-08

    Applicant: BASF AG

    Inventor： HEDTMANN-REIN CAROLA DR ,  CZAUDERNA BERNHARD DR ,  VON DEESSEN MARTINA DR ,  HENNIG KARL

    IPC: C08G65/38 ,  C08G65/44 ,  C08K5/09 ,  C08K5/20

    Abstract: A process for preparing polyphenylene ethers from monohydric phenols which have alkyl substituents in both ortho positions and possibly also in one meta position but not in the para position, by oxidative coupling with oxygen-containing gases in the presence of an oxidation catalyst and of an electrically conducting compound which counteracts the electrostatic charge in the reaction mixture, in organic solution, comprises using as electrically conducting compound a salt of a carboxamide derivative of the formula I I or mixtures of such salts, where R1 is a saturated or singly or multiply unsaturated aliphatic group which can have a terminal phenyl group and which contains a total of 8-30 carbon atoms, it also being possible for these carbon atoms to be interrupted by isolated oxygen atoms, R2 is hydrogen or C1-C4-alkyl, A is an aliphatic, araliphatic or cycloaliphatic or aromatic bridge of up to 10 carbon atoms, n and m are each 1 to 3, Q(+) is ammonium, an alkali metal cation or the equivalent of an alkaline earth metal cation or a cation of a metal of groups IVb to VIIb of the periodic table.

    4.
    发明专利
    未知

    公开(公告)号：DE4015653A1

    公开(公告)日：1991-11-21

    申请号：DE4015653

    申请日：1990-05-16

    Applicant: BASF AG

    Inventor： HEDTMANN-REIN CAROLA DR ,  CZAUDERNA BERNHARD DR ,  DEESSEN MARTINA VON DR ,  HENNIG KARL

    IPC: C08G65/38 ,  C08G65/44 ,  C08K5/09 ,  C08K5/20

    Abstract: A process for preparing polyphenylene ethers from monohydric phenols which have alkyl substituents in both ortho positions and possibly also in one meta position but not in the para position, by oxidative coupling with oxygen-containing gases in the presence of an oxidation catalyst and of an electrically conducting compound which counteracts the electrostatic charge in the reaction mixture, in organic solution, comprises using as electrically conducting compound a salt of a carboxamide derivative of the formula I I or mixtures of such salts, where R1 is a saturated or singly or multiply unsaturated aliphatic group which can have a terminal phenyl group and which contains a total of 8-30 carbon atoms, it also being possible for these carbon atoms to be interrupted by isolated oxygen atoms, R2 is hydrogen or C1-C4-alkyl, A is an aliphatic, araliphatic or cycloaliphatic or aromatic bridge of up to 10 carbon atoms, n and m are each 1 to 3, Q(+) is ammonium, an alkali metal cation or the equivalent of an alkaline earth metal cation or a cation of a metal of groups IVb to VIIb of the periodic table.

    8.
    发明专利
    未知

    公开(公告)号：DE3842185A1

    公开(公告)日：1990-06-21

    申请号：DE3842185

    申请日：1988-12-15

    Applicant: BASF AG

    Inventor： HENNIG KARL ,  HARTMANN HEINRICH DR ,  RAUBENHEIMER HANS-JUERGEN ,  FISCHER HERMANN DR ,  DENZINGER WALTER

    IPC: C09K23/52 ,  C08F2/00 ,  C08F2/04 ,  C08F2/10 ,  C08F2/38 ,  C08F20/06 ,  C08F28/00 ,  C08F120/04 ,  C08F228/02 ,  C11D3/37 ,  D21H19/36 ,  D21H19/58

    Abstract: Process for preparing polymers of acrylic acid and methacrylic acid in powder form by polymerising (a) 100 to 70 % by weight of acrylic acid, methacrylic acid or mixtures of acrylic acid and methacrylic acid and (b) 0 to 30 % by weight of vinylsulfonic acid or alkali metal salts thereof in monohydric C1- to C8-alcohols, water or mixtures of these solvents in a powder bed in the presence of polymerisation initiators and - in each case based on the monomers employed in the polymerisation, 0.05 to 10 mol.% of a thiocarboxylic acid and/or of a mercapto alcohol and 0.05 to 10 mol.% of propionic acid or formic acid as regulator, while maintaining the powder state during the polymerisation, dissipating the heat of polymerisation by removing the solvent by distillation, and circulating the reaction mixture.

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