SUBSTITUTED TETRATHIOTETRACENES AND TETRASELENOTETRACENES

    公开(公告)号:CA1336606C

    公开(公告)日:1995-08-08

    申请号:CA600609

    申请日:1989-05-25

    Applicant: CIBA GEIGY AG

    Abstract: Substituted tetrathiotetracenes and tetraselenotetracenes of the formula I (I), in which Z is -S- or -Se- and a) R1, R2, R3 and R4 are H and R5 to R8 are each H and at least one of the radicals R5 to R8 independently of one another is a substituent belonging to the group comprising C1-C20alkyl?X? which is unsubstituted or substituted by halogen, -CN, -CONR9R10, -OR9, -SR9 or -COOR9, with the exception of C1-C4alkyl and methoxy, C2-C18alkenyl?X?, C2-C18-alkynyl?X?, C3-C8cycloalkyl?X?, (C1-C12alkyl)-C3-C8cyclo-alkyl?X?, C3-C8cycloalkyl-CrH2r?X?, (C1-C12alkyl)-C3-C8-cyclo alkyl-CrH2r?X?-, phenyl?X?, (C1-C12)alkyl)-phenyl?X?, phenyl-CrH2r?X? and (C1-C12alkyl)-phenyl-CrH2r?X?, r is 1 or 2 and p is 0 or 1 and X is -O-, -S-, -SO- or -SO2-, or R5 to R8 independently are a substituent belonging to the group comprising -Br, -CF3, -CN, -Si(C1-C4alkyl)3, -S-(CmH2m? or -O?CmH2m-?, or each one of R5 to R8 is -F or -Cl and at least one further member of R5 to R8 is a substituent of the groups defined above, including C1-C4alkyl and methoxy, R9 and R10 independently of one another are H, C1-C12alkyl, phenyl or ?CmH2m-O?, or R9 and R10 together are tetramethylene, pentamethylene, 3-oxapentylene or -CH2CH2NR9CH2CH2-, R11 is H or C1-C12-alkyl, m is a number from 2 to 4, n is a number from 2 to 20 and q is a number from 1 to 20, or b) R1 to R8 independently of one another are H or one of the substituents defined above, including C1-C4alkyl and methoxy, or -COOR9 or -CONR9R10 or two pairs of adjacent radicals of R1 to R8 are -CO-O-CO- or -CO-NR9-CO-, and at least one of R1 to R4 and also R5 to R8 is a substituent, with the exception of R2, R3, R6 and R7 when these are -F and methyl, and where R9 and R10 are as defined above. With electron acceptors they form charge-transfer complexes which can be used as organic electrical conductors, displays, optical switches and sensors.

    ELECTRICALLY CONDUCTIVE PLASTICS COMPOSITIONS AND THE USE THEREOF

    公开(公告)号:CA2093952A1

    公开(公告)日:1993-10-16

    申请号:CA2093952

    申请日:1993-04-13

    Applicant: CIBA GEIGY AG

    Abstract: FM/6-19061/A Electrically conductive plastics compositions and the use thereof A composition comprising a) at least one polyheteroaromatic compound or one poly-aniline in oxidised, polycationic form, and b) at least one polyanion of a film-forming thermoplastic polymer having sulfonate-alkylated alcohol groups in structural repeating units, wherein the group -(CnH2n)- is linear or branched C2-C12 alkylene that has from 2 to 5 carbon atoms in the carbon chain and is unsubstituted or substituted by C1-C4alkoxy. The composition is electrically conductive and can be processed thermoplastically. It can be used in the production of moulded articles or in the form of powders as a filler for plastics.

    POLY (9,9'-SPIRODIFFLUORENES), THEIR PRODUCTION AND APPLICATION

    公开(公告)号:PL326841A1

    公开(公告)日:1998-10-26

    申请号:PL32684196

    申请日:1996-11-19

    Applicant: CIBA GEIGY AG

    Abstract: PCT No. PCT/EP96/05091 Sec. 371 Date May 29, 1998 Sec. 102(e) Date May 29, 1998 PCT Filed Nov. 19, 1996 PCT Pub. No. WO97/20877 PCT Pub. Date Jun. 12, 1997Soluble poly(bis-9,9'-fluorenes) comprise identical or different structural repeating units of the formula I, where the two R1s are, independently of one another, H, C1-C18alkyl, C6-C14aryl, C7-C15aralkyl, C1-C18alkoxy, R2-(O-CnH2n)m-O-, C1-C18alkylthio, C1-C18dialkylamino, -C(O)OH, -C(O)O-C1-C18alkyl, -C(O)-N(C1-C18alkyl)2, -SO3H, -SO3-C1-C18alkyl, -SO2-N(C1-C18alkyl)2, C1-C17-alkyl-C(O)-O- or C1-C17alkyl-C(O)-, R2 is H or C1-C12alkyl, n is from 2 to 6 and m is from 1 to 12. The polymers can be used either alone or in admixture with at least one additional fluorophore whose absorption band overlaps the emission band (fluorescent emission) of the polymer of the formula I as active radiative layer for light-emitting diodes, VDUs and display elements.

    COPOLYIMIDES, THEIR PREPARATION AND THE USE THEREOF

    公开(公告)号:CA2049265A1

    公开(公告)日:1992-02-18

    申请号:CA2049265

    申请日:1991-08-15

    Applicant: CIBA GEIGY AG

    Abstract: FL/6-18203/A Copolyimides, their preparation and the use thereof Mixtures of salts of organic dicarboxylic acids and organic compounds of non-salt character, dissolved in a C1-C4alkanol, can be concentrated or separated with a semipermeable membrane made from a copolyimide which contains a first aromatic diamine radical (1) and a second aromatic diamine radical (2) which carries -SO3M groups, wherein M is H?, a mono- to trivalent metal cation or an ammonium cation. The first amine radical (1) and/or the second diamine radical (2) contains C1-C4alkyl groups in both o-positions to at least one amino group. These copolyamides are also radiation-sensitive (self-crosslinking) and can be used for the production of protective layers or relief images, development being carried out in an aqueous alkaline medium.

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