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    2.
    发明专利
    未知

    公开(公告)号：DE58906489D1

    公开(公告)日：1994-02-03

    申请号：DE58906489

    申请日：1989-10-09

    Applicant: BASF AG

    Inventor： KOEHLER HERMANN DR ,  EBEL KLAUS DR ,  KARN HELMUT ,  TAUBITZ CHRISTOF DR

    IPC: C07D233/54 ,  C07D233/64

    Abstract: Process for the preparation of imidazoles substituted in the 2- and/or 4- and/or 5-position by p-nitrophenyl and, if appropriate, additional substituents by reaction of imidazoles substituted in the 2- and/or 4- and/or 5-position by phenyl and, if appropriate, additional substituents with mixtures of sulphuric acid and nitric acid, by carrying out the reaction in the presence of urea.

    3.
    发明专利
    未知

    公开(公告)号：DE3880514D1

    公开(公告)日：1993-06-03

    申请号：DE3880514

    申请日：1988-01-22

    Applicant: BASF AG

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

    IPC: C08J3/20 ,  C08F283/08 ,  C08G65/48 ,  C08L71/12 ,  C08L77/00

    Abstract: Continuous prodn. of thermoplastic polyphenylene ether /polyamide moulding materials in an extruder comprises (1) reacting in a first zone at 240-350 deg.C (by wt. w.r.t. total components (a1)-(a5): (a1) 50-99.5% of a polyphenylene ether, (a2) 0-45% of a vinylaromatic polymer, (a3) 0.05-10% of (a31) an alpha-beta-unsatd. carboxylic acid of derivs. of this of formula R1-CO-C(R2)=C(R3)-CO-R4 (I) in which R1 and R4=OH, aryloxy, alkoxy, aralkoxy or cycloalkoxy gps. with up to 12C, or R1 and R4 together=-O- or -NR5-; R2 and R3=H, alkyl or cycloalkyl with up to 12C, aryl or Cl, or R2 and R3 may together form a 4-12C alkylene gp.; R5=alkyl, cycloalkyl, aralkyl or aryl gp. wit- up to 12C, which may be substd. with 1-4C alkyl or alkoxy gps., and/or (a32) a monomer contg. an amide gp. and a polymerisable double bond, and/or (a33) a monomer contg. a lactam gp. and a polymerisable double bond; and opt. (a4) 0-80% other monomers suitable for grafting and (a5) 0-20% radical initiators, for 0.1-15 mins. to give a modified polyphenylene ether A; and (2) subsequently introducing into a further zone of the extruder at 250-350 deg.C (by wt. w.r.t. total components A-F); (B) 5-95 wt.% of a polyamide, (C) 0-90 wt.% of an unmodified polyphenylene ether, (D) 0-45% of a vinyl aromatic polymer, (E) 0-40% of an impact-improving modifying rubber, (F) 0-60% additives and processing aids, and finally extruding the mixt..

    4.
    发明专利
    未知

    公开(公告)号：DE3871988D1

    公开(公告)日：1992-07-23

    申请号：DE3871988

    申请日：1988-02-24

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  HECKMANN WALTER DR ,  THEYSOHN RAINER DR

    IPC: C08F279/02 ,  C08F285/00 ,  C08L51/04 ,  C08L77/00

    Abstract: Thermoplastics moulding compsn. contains (w.r.t. A+B) (A) 5-95 (wt.)% resin(s) consisting of (a1) 8-12C vinylaromatic monomer(s), (a2) alpha,beta-unsatd. dicarbonyl monomer(s) and (a3) elastomer(s) (rubber) and (B) 95-5% polyamide(s). The novelty is that resin (A) is obtd. by grafting (a1) to an unmodified resin in the presence of a3, then modification in the melt at 120-280 deg.C in the presence of a2, using the monomers in such amts. that A consists of 97-50% a1, 0.05-10% a2 and 3-50% a3.

    Thermoplastic moulding compositions based on polyesters and polyphenylene ethers
    7.
    发明专利
    Thermoplastic moulding compositions based on polyesters and polyphenylene ethers 未知

    公开(公告)号：DE3834085A1

    公开(公告)日：1990-04-12

    申请号：DE3834085

    申请日：1988-10-07

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  LAUSBERG DIETRICH DR ,  BRANDT HERMANN DR

    IPC: C08L67/00 ,  C08L67/02 ,  C08L71/12

    Abstract: Thermoplastic moulding compositions based on A) polyesters and B) polyphenylene ethers, characterised by a content of C) from 0.1 to 40% by weight, based on the sum of A, B and C, of a copolymer comprising c1) from 40 to 99.9 mol % of a vinylaromatic monomer, c2) from 0.1 to 60 mol % of a compound of the formula (I) wherein R is -OH, alkoxy, aryloxy, aralkoxy or alkylaryloxy having up to 25 carbon atoms or, together with R is -NR -, R is -H or, if R is -H, is alkyl, aryl, aralkyl or alkaryl having up to 25 carbon atoms or chlorine, R is -H or, if R is -H, is alkyl, aryl, aralkyl or alkaryl having up to 25 carbon atoms or chlorine, R is alkoxy, aryloxy, aralkoxy or alkylaryloxy having up to 25 carbon atoms or, together with R , is -NR -, and R is hydrogen or an alkyl, cycloalkyl, aralkyl or aryl group having up to 12 carbon atoms which itself may be substituted by C1-C4-alkyl or -alkoxy groups, and c3) from 0 to 20 mol % of further copolymerisable monomers, and the preparation and use thereof.k

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