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    Oxidn. of sulphur-contg. polymers, esp. polyarylene sulphide
    3.
    发明专利
    Oxidn. of sulphur-contg. polymers, esp. polyarylene sulphide 未知

    公开(公告)号：DE4440010A1

    公开(公告)日：1996-05-15

    申请号：DE4440010

    申请日：1994-11-09

    Applicant: HOECHST AG

    Inventor： SCHOENFELD AXEL DR ,  SCHLEICHER ANDREAS DR ,  FRANK GEORG DR

    IPC: C09K19/38 ,  C08G75/18 ,  C08G75/20 ,  C08L81/00

    Abstract: A process for the oxidn. of sulphur-contg. polymers comprises bringing the polymer into contact with N2O4. Pref the polymer starting materials are linear and/or branched polyarylenes with units of formula-(Ar )n-Xm-(Ar )i-Yj-(Ar )k-Zl-(Ar )oWp- (I)Ar gps. = 6-18C arylene systems in the form of single rings or directly p-, m- or o-linked ring systems; W,X,Y,Z = -SO2-, -S-, -SO-, -CO-, -O-, -COO-, 1-6C alkylene or alkylidene, or -NR - (with R = 1-6C alkyl or alkylidene); at least one of these gps. must be -S-; indices n.. etc. = 0,1,2,3 or 4; sum of indices = at least 2.

    6.
    发明专利
    未知

    公开(公告)号：BR9404005A

    公开(公告)日：1995-06-27

    申请号：BR9404005

    申请日：1994-10-06

    Applicant: HOECHST AG

    Inventor： GEORG FRANK DR ,  SCHLEICHER ANDREAS DR ,  KULPE JUERGEN DR

    IPC: C08G75/02 ,  C08G75/00 ,  C08G75/06 ,  C08G75/12 ,  C08G75/18

    Abstract: The invention relates to a process for the preparation of polymer sulphides which is characterised in that compounds containing sulphoxide linking groups of the formula (I> -[(Ar )n-X)]m-[(Ar )i-Y)]j-[(Ar )k-Z)]l-[(Ar )o-W)]p- (1> in which the symbols and indices have the following meanings: Ar , Ar , Ar and Ar are identical or different arylene systems having 6 to 18 carbon atoms, W, X, Y and Z are identical or different -SO2-, -S-, -SO-, -CO-, -O-, -CO2-, alkylene or alkylide groups having 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, where at least one linking group from W, X, Y or Z must be an -SO- group, n, m, i, j, k, l, o and p are identical or different and are 0 or an integer 1, 2, 3 or 4, where their sum must be at least 2, are treated a) thermally or b) in the presence of active hydrogen or c) photochemically and reduced to the corresponding sulphides.

    7.
    发明专利
    未知

    公开(公告)号：DE4334198A1

    公开(公告)日：1995-04-13

    申请号：DE4334198

    申请日：1993-10-07

    Applicant: HOECHST AG

    Inventor： FRANK GEORG DR ,  SCHLEICHER ANDREAS DR ,  KULPE JUERGEN DR

    IPC: C08G75/02 ,  C08G75/00 ,  C08G75/06 ,  C08G75/12 ,  C08G75/18

    Abstract: The invention relates to a process for the preparation of polymer sulphides which is characterised in that compounds containing sulphoxide linking groups of the formula (I> -[(Ar )n-X)]m-[(Ar )i-Y)]j-[(Ar )k-Z)]l-[(Ar )o-W)]p- (1> in which the symbols and indices have the following meanings: Ar , Ar , Ar and Ar are identical or different arylene systems having 6 to 18 carbon atoms, W, X, Y and Z are identical or different -SO2-, -S-, -SO-, -CO-, -O-, -CO2-, alkylene or alkylide groups having 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, where at least one linking group from W, X, Y or Z must be an -SO- group, n, m, i, j, k, l, o and p are identical or different and are 0 or an integer 1, 2, 3 or 4, where their sum must be at least 2, are treated a) thermally or b) in the presence of active hydrogen or c) photochemically and reduced to the corresponding sulphides.

    10.
    发明专利
    未知

    公开(公告)号：ES2098136T3

    公开(公告)日：1997-04-16

    申请号：ES94913593

    申请日：1994-04-13

    Applicant: HOECHST AG

    Inventor： STRUTZ HEINZ ,  FLEISCHER DIETRICH ,  KULPE JURGEN ,  SCHLEICHER ANDREAS DR

    IPC: B01D15/00 ,  B01D19/00 ,  B01D53/14 ,  B01D53/34 ,  B01D53/66 ,  B01D53/86 ,  B01J20/26 ,  C08G75/02

    Abstract: A filter material based on a polyarylene thioether having repeating units of the formula -[(Ar1)n-X)]m-[(Ar2)i-Y)]j-[(Ar3)k-Z)]l-[(Ar4)o-W)]p-(I) in which Ar1, Ar2, Ar3, Ar4, W, X, Y and Z, independently of each other, are identical or different, the indices n, m, i, j, k, l, o and p, independently of each other, are zero or integers 1, 2, 3 or 4, their sum being at least 2, Ar1, Ar2, Ar3 and Ar4 are arylene systems having 6 to 18 carbon atoms, and W, X, Y and Z are divalent linking groups, selected from -SO2-, -S-, -SO-, -CO-, -O-, -CO2-, or alkylene groups or alkylidene groups having 1 to 6 carbon atoms is suitable for removing ozone from gases or liquids. The removal proceeds quantitatively, no volatile products being formed.

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