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    Process for the preparation of branched polyarylene sulphides of high molecular weight
    45.
    发明专利
    Process for the preparation of branched polyarylene sulphides of high molecular weight 未知

    公开(公告)号：DE3339538A1

    公开(公告)日：1985-05-09

    申请号：DE3339538

    申请日：1983-11-02

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  STERZEL HANS JOSEF DR

    IPC: C08G75/0231 ,  C08G75/0254 ,  C08G75/16

    Abstract: A process for the preparation of branched polyarylene sulphides of high molecular weight comprises reacting dihaloaromatic compounds with alkali metal sulphides in the presence of from 0.5 to 10 mol% of alkali metal sulphite and/or alkaline earth metal sulphite, based on the amount of alkali metal sulphide, and from 0.05 to 3 mol% of tri- or polyhaloaromatic compounds, based on the amount of dihaloaromatic compounds, in 5- to 7-membered lactams which are substituted on the nitrogen atom by an alkyl or cycloalkyl radical as solvent at a temperature of from 180 to 350 DEG C, in which alkali metal sulphides in an N-substituted lactam with a boiling point of above 220 DEG C are introduced into a reactor, the haloaromatic compounds are added at a temperature above the boiling point of the dihaloaromatic compounds used and below the boiling point of the N-substituted lactam used, at the rate at which they are consumed.

    Process for the preparation of low-molecular-weight polyarylene sulphide
    46.
    发明专利
    Process for the preparation of low-molecular-weight polyarylene sulphide 未知

    公开(公告)号：DE3237110A1

    公开(公告)日：1984-04-12

    申请号：DE3237110

    申请日：1982-10-07

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  WALTER MANFRED DR

    IPC: C08G75/0231 ,  C08G75/0254 ,  C07C149/30

    Abstract: The low-molecular-weight polyarylene sulphides are prepared by reacting a dihaloaromatic with an alkali metal sulphide in an N-alkyl-2-pyrrolidone having a boiling point above 220 DEG C at temperatures of between 180 DEG C and 350 DEG C. The reaction is preferably carried out at a temperature above the boiling point of the dehaloaromatic but below the boiling point of the N-alkylpyrrolidone at atmospheric pressure, in which the solvent and the alkali metal sulphide are initially introduced and heated to the reaction temperature and the dihaloaromatic is added at such a low rate that the temperature of the reaction mixture does not drop by more than 10 DEG C.

    47.
    发明专利
    未知

    公开(公告)号：DE3851385D1

    公开(公告)日：1994-10-13

    申请号：DE3851385

    申请日：1988-06-30

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  BOEHLKE KLAUS DR ,  BRONSTERT KLAUS DR ,  WAGNER DANIEL DR

    IPC: C08L71/12 ,  C08L77/00

    Abstract: The moulding masses contain, as essential components,… A) from 5 to 94% by weight of a polyamide,… B) from 5 to 94% by weight of a polyphenylene ether,… C) from 1 to 20% by weight of a partially hydrogenated PQP' block copolymer in which… alpha ) the blocks P and P' are built up from vinylaromatic monomers, and the total amount of these blocks in the block copolymer is the range from 25 to 40% by weight,… beta ) the molecular weight (number average) of block P is not greater than 8,000 and is less than the molecular weight (number average) of block P'… gamma ) block Q is built up from conjugated diene monomers and makes up a total of from 60 to 75% by weight of the block copolymer, and… delta ) from 5 to 30% by weight of the double bonds in block Q are unhydrogenated, and… D) from 0 to 50% by weight of a vinyl aromatic polymer.

    48.
    发明专利
    未知

    公开(公告)号：DE3786179D1

    公开(公告)日：1993-07-22

    申请号：DE3786179

    申请日：1987-02-09

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  HAMBRECHT JUERGEN DR

    IPC: C08L23/08 ,  C08L25/02 ,  C08L25/08 ,  C08L25/16 ,  C08L25/18 ,  C08L33/00 ,  C08L33/02 ,  C08L35/00 ,  C08L73/00 ,  C08L77/00

    Abstract: The compsns. (I) contain (A) 2-98 wt.% modified polyamide prepd. from (A1) at least 50 wt.% polyamide, (A2) at least 0.1 wt.% polymer essentially comprising ethylene and a polymerisable carboxylic acid and/or a functional deriv., (B) 2-98 wt.% styrene copolymer contg. carboxylic acid gps. and/or gps. of functional carboxylic acid derivs. Pref. (I) contain 25-75 wt.% (A) and 25-75 wt.% (B). Copolymer (A2) is formed from monomer mixt. comprising (a1) 55-99 wt.% ethylene, (a2) 1-50 wt.% polymerisable alk-2-en-carboxylic acid and/or a functional deriv. and (a3) 0-40 wt.% other monomers. Pref. (A) is formed from 55-98 wt.% (A1) and 2-45 wt.% (A2). (B) is formed from (B1) 50-99 wt.% styrene alkylated or halogenated in ring or alpha position and/or styrene, and (B2) 1-50 wt.% polymerisable carboxylic acid and/or a functional deriv.

    PFROPFPOLYMERISATE AUF BASIS VON POLYPHENYLENETHER.
    50.
    发明专利
    PFROPFPOLYMERISATE AUF BASIS VON POLYPHENYLENETHER. 未知

    公开(公告)号：DE3869261D1

    公开(公告)日：1992-04-23

    申请号：DE3869261

    申请日：1988-07-21

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SCHLEMMER LOTHAR ,  SEILER ERHARD DR ,  BOEHLKE KLAUS DR ,  GAUSEPOHL HERMANN DR

    IPC: C08F257/02 ,  C08F283/08

    Abstract: Practically uncrosslinked graft polymers (I) consist of (A) a base polymer of 40-100(wt.)% polyphenylene ether and 0-60% vinyl-aromatic polymer, (B) a monomer with a C=C double bond, in which the double bond C atoms are substd. by only one CO gp. and (C) opt. other olefinically unsatd. monomers. The novelty is that (B) also contains 2 CO gps. linked through a C=C double bond, with the structure (i). Pref. (B) is mono-2-acryloxyethyl maleate (B1) or mono-2-methacryloxyethyl maleate (B2). The graft polymer contains 80-99.9, pref. 90-99.9% (A), 0.1-20, pref. 0.1-10% (B) and 0-20, pref. 0% (C). Graft polymerisation is carried out at 170-350 deg.C (practically) in the absence of a free radical initiator.

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