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    THERMOPLASTIC MOLDING MATERIALS
    24.
    发明专利
    THERMOPLASTIC MOLDING MATERIALS 未知

    公开(公告)号：CA1255832A

    公开(公告)日：1989-06-13

    申请号：CA478834

    申请日：1985-04-11

    Applicant: BASF AG

    Inventor： MITULLA KONRAD ,  HAMBRECHT JUERGEN ,  ECHTE ADOLF ,  SWOBODA JOHANN ,  SIEBEL PETER ,  SCHWAAB JOSEF ,  FRANK HERBERT

    IPC: C08L51/00 ,  C08L69/00

    Abstract: - 20- O.Z. 0050/37071 A thermoplastic molding material consists of from 10 to 90 parts by weight of a polycarbonate A and from 90 to 10 parts by weight of a graft copolymer B having a mean particle size of from 200 to 700 nm (d50 value of the integral mass distribution). The graft polymer B is formed from an elastomer (rubber) b1), which accounts for from 10 to 80% by weight, and a grafted shell b2), which accounts for from 90 to 20% by weight, the percentages in each case being based on B). The elastomer b1) is composed of from 50 to 99.9% by weight of an alkyl acrylate, where alkyl is of 1 to 8 carbon atoms, and from 0.1 to 5% by weight of a copolymerizable polyfunctional crosslinking monomer. The grafted shell b2) is produced in three stages and contains, as graft monomers, b2a1) from 5 to 40% by weight of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms, in the first stage, b2a2) from 15 to 50% by weight of a mixture of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms and a copolymerizable ethylenically unsaturated monomer, in a weight ratio of from 90:10 to 60:40, in the second stage, and b2a3) from 10 to 85% by weight of an alkyl (meth) acrylate in the third stage, the percentages in each case being based on b2).

    THERMOPLASTIC MOLDING MATERIALS
    25.
    发明专利
    THERMOPLASTIC MOLDING MATERIALS 未知

    公开(公告)号：CA1254324A

    公开(公告)日：1989-05-16

    申请号：CA470882

    申请日：1984-12-21

    Applicant: BASF AG

    Inventor： HAMBRECHT JUERGEN ,  ILLERS KARL H ,  ECHTE ADOLF ,  SWOBODA JOHANN

    IPC: C08L25/14 ,  C08L51/04 ,  C08L71/12 ,  C08L71/04

    Abstract: The invention relates to a thermoplastic molding material which contains a mixture of (I) from 95 to 5% by weight of a polyphenylene ether and (II) from 5 to 95% by weight of a copolymer consisting of A1) from 85 to 99 parts by weight of a monovinylaromatic monomer, A2) from 1 to 5 parts by weight of an alkyl methacrylate where alkyl is of not more than 8 carbon atoms, and B) from 0 to 20 parts by weight of an elastomer component which has a glass transition temperature ? 0.degree.C, the sum of the number of parts by weight being 100. This thermoplastic molding material possesses sufficiently high heat distortion resistance coupled with good resistance to chemicals and well balanced mechanical properties.

    IMPACT-RESISTANT THERMOPLASTIC MOLDING MATERIAL
    27.
    发明专利
    IMPACT-RESISTANT THERMOPLASTIC MOLDING MATERIAL 未知

    公开(公告)号：CA1194247A

    公开(公告)日：1985-09-24

    申请号：CA384895

    申请日：1981-08-31

    Applicant: BASF AG

    Inventor： ECHTE ADOLF ,  GAUSEPOHL HERMANN

    IPC: C08L51/04 ,  C08L25/06

    Abstract: An impact-resistant thermoplastic molding material, containing polystyrene as the matrix and, dispersed therein, two elastomeric polymers or copolymers I and II composed entirely or predominantly of 1,3-dienes and containing particles of different mean size, namely, in I, particles from 0.2 to 0.6/um in size and having capsule particle morphology, and, in II, particles from 2 to 8/um in size, having cell particle or coil particle morphology.

    CONTINUOUS PREPARATION OF RUBBER-MODIFIED POLYMERS OF VINYL-AROMATICS
    28.
    发明专利
    CONTINUOUS PREPARATION OF RUBBER-MODIFIED POLYMERS OF VINYL-AROMATICS 未知

    公开(公告)号：CA1188021A

    公开(公告)日：1985-05-28

    申请号：CA391194

    申请日：1981-11-30

    Applicant: BASF AG

    Inventor： ECHTE ADOLF ,  GAUSEPOHL HERMANN ,  HAMBRECHT JUERGEN ,  GERBERDING KARL

    IPC: C08F2/02 ,  C08F2/06 ,  C08F212/06 ,  C08F279/02 ,  C08F291/02 ,  C08F287/00 ,  C08F255/10

    Abstract: A process for the continuous preparation of rubber-modified polymers of vinyl-aromatics, wherein a mixture which contains a monomeric aromatic vinyl compound and from 3 to 30% by weight, based on the monomer, of an elastomeric polymer, with or without a solvent, is polymerized, in the presence of a free radical initiator and in the presence or absence of a mercaptan as chain transfer agent,at from 80 to 180.degree.C, with stirring, in two or more isothermally operated reaction zones, in such a way that the residence time of the reactants in the first reaction zone is ? 35 minutes. The polymer obtained is freed from vinyl-aromatic monomer, and from any solvent, in a devolatilization zone. The product is useful for the production of injection moldings.

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