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    Process for the preparation of thermoplastic copolymers
    145.
    发明专利
    Process for the preparation of thermoplastic copolymers 未知

    公开(公告)号：DE3430247A1

    公开(公告)日：1986-02-27

    申请号：DE3430247

    申请日：1984-08-17

    Applicant: BASF AG

    Inventor： REFFERT RUDI WILHELM ,  HAMBRECHT JUERGEN DR ,  JUNG RUDOLF H DR ,  SCHAECH HANSJOERG ,  GAUSEPOHL HERMANN DR ,  SIEBEL PETER DR ,  SCHWAAB JOSEF DR ,  ECHTE ADOLF DR

    IPC: C08F212/00 ,  C08F212/08

    Abstract: The invention relates to a process for the preparation of thermoplastic copolymers by continuous polymerisation of a mixture of a) a vinylaromatic monomer and b) a monomer from the group consisting of nitriles and esters of (meth)acrylic acid and of maleic anhydride, in bulk or in solution in the presence of small amounts of water, it being possible for an elastomer having a glass transition temperature of below 0 DEG C which may already be dissolved in the mixture or the components of the mixture to be present, in at least one mixed (stirred) reactor under steady-state conditions with dissipation of the heat of reaction by evaporative cooling, and subsequent discharge of the reaction products from the reactor and conventional isolation of the copolymers and recovery of the unreacted monomers, alone or together with a solvent, if one was used, and recycling thereof into the reactor together with the mixture of a) and b), where the polymerisation is carried out with the proviso that from 1 to 25% by weight of steam, based on the gases present in the vapour space of the reactor, are present in the vapour space and the reactor discharge contains less than 0.1% by weight of water.

    Flameproofing of ABS by means of brominated polyphenylene ether
    146.
    发明专利
    Flameproofing of ABS by means of brominated polyphenylene ether 未知

    公开(公告)号：DE3425455A1

    公开(公告)日：1986-01-23

    申请号：DE3425455

    申请日：1984-07-11

    Applicant: BASF AG

    Inventor： MUENCH VOLKER DR ,  ECHTE ADOLF DR ,  LINDENSCHMIDT GERHARD DR

    IPC: C08L55/02 ,  C08K3/22 ,  C08K3/32 ,  C08K3/38 ,  C08L25/12 ,  C08L51/04 ,  C08L71/04

    Abstract: A self-extinguishing thermoplastic moulding composition containing a copolymer A formed from a butadiene-based elastomer onto which a copolymer of a vinylaromatic monomer having 8 to 9 carbon atoms and acrylonitrile has been grafted, and a copolymer (hard matrix) comprising a vinylaromatic monomer having 8 to 9 carbon atoms and acrylonitrile (ABS), and furthermore containing, in each case based on 100 parts by weight of A, from 2 to 40 parts by weight of brominated polyphenylene ethers, which are known per se, contain a free OH end group and have mean molecular weights (number average) in the range from 2000 to 20000, as flameproofing agent B and from 0.5 to 20 parts by weight of a metallic or non-metallic compound (synergist) C. The moulding composition may contain conventional additives and is used to produce mouldings.

    147.
    发明专利
    未知

    公开(公告)号：DE3414237A1

    公开(公告)日：1985-10-24

    申请号：DE3414237

    申请日：1984-04-14

    Applicant: BASF AG

    Inventor： MUENCH VOLKER DR ,  HAMBRECHT JUERGEN DR ,  HIMMELE WALTER DR ,  ECHTE ADOLF DR ,  SWOBODA JOHANN DR

    IPC: C08G65/44

    Abstract: High molecular weight polyphenylene ethers are prepared from monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a solvent and of a catalyst complex consisting of a copper salt and an organic amine of the general formula where R1 is C2-C20-alkylidene, preferably C2-C12-alkylidene, or alkenylidene, R2 is H or C1-C12-alkyl, preferably C1-C4-alkyl, or C5-C8-cycloalkyl, each of which is unsubstituted or substituted by functional groups, and n is an integer from 1 to 4, preferably 1 or 2. Preferred functional groups are -OR3, -NHR3 or -SR3, in which R3 is H C1-C12-alkyl or C5-C8-cycloalkyl, and the most suitable amines are 3-tert.-butoxypropylamine, 4-tert.-butoxybutylamine, 3-tert.-butoxy-2-methylpropylamine, 3-tert.-butoxy-2,3-dimethylpropylamine, 3-tert.-butoxy-2-methyloctylamine and N-methyl-N-(4-tert.-butoxybutyl)-amine. The polyphenylene ethers can be processed to moldings by a thermoplastic method.

    150.
    发明专利
    未知

    公开(公告)号：DE3401835A1

    公开(公告)日：1985-07-25

    申请号：DE3401835

    申请日：1984-01-20

    Applicant: BASF AG

    Inventor： MUENCH VOLKER DR ,  HAMBRECHT JUERGEN DR ,  ECHTE ADOLF DR ,  ILLERS KARL HEINZ DR ,  SWOBODA JOHANN DR

    IPC: C08K5/00 ,  C08L101/00 ,  C08K5/16 ,  C08K5/49 ,  C08L61/06

    Abstract: A halogen-free flameproofed thermoplastic molding material consists of a halogen-free thermoplastic resin (A) and one or more further halogen-free components. The thermoplastic resin (A) is present in an amount of from 30 to 90% by weight, based on the molding material. The latter contains, as further components, from 1 to 50% by weight of a phenol/aldehyde resin (B), from 1 to 50% by weight of a nitrogen-containing organic compound (C) and from 3 to 50% by weight of a phosphorus-containing organic compound (D), the percentages in each case being based on the molding material. The molding material is used for the production of flameproofed moldings.

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