12.
    发明专利
    未知

    公开(公告)号:DE3629208A1

    公开(公告)日:1988-03-03

    申请号:DE3629208

    申请日:1986-08-28

    Applicant: BASF AG

    Abstract: Fully aromatic thermotropic polyesters based on (A) from 30 to 60 mol % of 4-hydroxybenzoic acid, (B) from 20 to 35 mol % of a mixture of (B1) terephthalic acid, (B2) isophthalic acid and (B3) from 0.5 to 5 mol % of a dicarboxylic acid of the general formula I where X is -O-, -S-, -SO2-, -CO-, -CH2- or -C(CH3)2-, n is 0 or 1 and the two imide nitrogen atoms are meta or para to X, or their C1-C8-alkyl, C1-C8-alkoxy, aryl, chlorine or bromine derivatives which are substituted in the nucleus, the molar ratio of B1 to B2 being from 1.04:1 to 19:1, and (C) from 20 to 35 mol % of a mixture of (C1) hydroquinone and (C2) 4,4'-dihydroxydiphenyl, the molar ratio of C1 to C2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.

    13.
    发明专利
    未知

    公开(公告)号:DE3542855A1

    公开(公告)日:1987-06-11

    申请号:DE3542855

    申请日:1985-12-04

    Applicant: BASF AG

    Abstract: Wholly aromatic mesomorphic polyester amides which form a liquid-crystalline fiber-forming melt below 320 DEG C., composed of (a) from 3 to 30 mol % of repeat units of the formula I I (b) from 3 to 30 mol % of repeat units of the formula II and/or III II III (c) from 2 to 25 mol % of one or more of the repeat units of the formula IV, V or VI, IV V VI (d) a molar amount corresponding to the total amount of components (a), (b) and (c) excluding the repeat unit of the formula III, of the repeat units of the formula VII VII which, if desired, can in part be replaced by repeat units of the formula VIII VIII (e) if desired from 5 to 25 mol % of repeat units of the formula IX IX (f) repeat units of the formula X X the molar proportions of components (a), (b), (c), (d), (e) and (f) in each case adding up to 100 mol %, and preparation thereof.

    17.
    发明专利
    未知

    公开(公告)号:DE3689663D1

    公开(公告)日:1994-03-31

    申请号:DE3689663

    申请日:1986-11-24

    Applicant: BASF AG

    Abstract: Wholly aromatic mesomorphic polyester amides which form a liquid-crystalline fiber-forming melt below 320 DEG C. and are composed of (a) from 3 to 30 mol % of repeat units of the formula I (b) from 3 to 25 mol % of one or more of the repeat units of the formulae II, III and IV II III IV (c) a molar amount corresponding to the total amount of components (a) and (b) of repeat units of the formulae V and/or VI V VI (d) repeat units of the formula VII VII (e) if desired from 5 to 25 mol % of repeat units of the formula VIII VIII the mole percentages of components (a), (b), (c), (d) and (e) adding up to 100 mol % in each case, and the preparation and use thereof.

    19.
    发明专利
    未知

    公开(公告)号:DE3766889D1

    公开(公告)日:1991-02-07

    申请号:DE3766889

    申请日:1987-06-23

    Applicant: BASF AG

    Abstract: Fully aromatic mesomorphic polyesters which give a liquid crystalline filament-forming melt below 300 DEG C. consist of (a) from 5 to 25 mol % of repeating units of the formula I (I) (b) from 5 to 25 mol % of repeating units of the formula II (II) (c) from 10 to 50 mol % of repeating units of the formula III (III) and (d) not less than 10 mol % of repeating units of the formula IV (IV) the sum of the molar amounts of components (a), (b), (c) and (d) being 100 mol %, and the molar ratio of components (a) and (b) to component (c) being from 0.9:1 to 1.1:1.

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