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    THERMOPLASTIC MOLDING MATERIALS
    1.
    发明专利
    THERMOPLASTIC MOLDING MATERIALS 未知

    公开(公告)号：CA1244568A

    公开(公告)日：1988-11-08

    申请号：CA470883

    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 74 to 99 parts by weight of a monovinylaromatic monomer, A2) from 1 to 26 parts by weight of an alkyl acrylate 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.

    THERMOPLASTIC MOLDING MATERIALS
    3.
    发明专利
    THERMOPLASTIC MOLDING MATERIALS 未知

    公开(公告)号：CA1255833A

    公开(公告)日：1989-06-13

    申请号：CA478835

    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 ,  C08L51/04 ,  C08L69/00

    Abstract: - 20 - O.Z. 0050/37072 A thermoplastic molding material consists of a polycarbonate A and a graft copolymer B, the latter consisting of an elastomer (rubber) b1) and a shell b2) grafted onto the elastomer. The elastomer b1) contains, as copolymerized units, from 35 to 100% by weight of a diene from the group consisting of the conjugated dienes of 4 or 5 carbon atoms, and can contain, as copolymerized units, from 0 to 65% by weight of a monomer from the group consisting of the alkyl acrylates or alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The shell b2) is obtained in a conventional manner by successive polymerization of the monomers constituting the shell, in two process steps, in the presence of the elastomer b1); in a first process step, from 10 to 90% by weight of a mixture of a vinylaromatic hydrocarbon and one or more ethylenically unsaturated monomers which differ from the said hydrocarbon, in a weight ratio of from 90:10 to 60:40, are first incorporated as copolymerized units, followed by the polymerization of from 90 to 10% by weight of a monomer from the group consisting of the alkyl acrylates or of the alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The molding material is used for the production of shaped articles.

    THERMOPLASTIC MOLDING MATERIALS
    5.
    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
    6.
    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.

    CONTINUOUS PREPARATION OF RUBBER-MODIFIED POLYMERS OF VINYL-AROMATICS
    7.
    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.

    POLY(PHENYLENE ETHERS) AND THEIR PREPARATION
    10.
    发明专利
    POLY(PHENYLENE ETHERS) AND THEIR PREPARATION 未知

    公开(公告)号：CA1257741A

    公开(公告)日：1989-07-18

    申请号：CA496352

    申请日：1985-11-27

    Applicant: BASF AG

    Inventor： MITULLA KONRAD ,  HAMBRECHT JUERGEN ,  TESCH HELMUT ,  SCHMITT BURGHARD ,  MAEDER HANSJOACHIM

    IPC: C08G65/44 ,  C08G65/48

    Abstract: Disclosed is a method of preparing high molecular weight polyphenylene ethers from monohydric phenols. According to this method, the phenols are subjected to an oxydative coupling reaction with oxygen to produce poly(phenylene ethers) which are subsequently reacted with an epoxide of the general formula (I) (I) where R1 and R2 can be identical or different and are each alkyl, cycloalkyl, aryl, aryloxy, alkoxy or carboxyalkyl, each of which may contain a furtehr epoxide group, or C3-C20-alkyl-substituted amino, or R1 is hydrogen and R2 is one of the above groups, or R1 and R2 form part of a cycloalkyl ring. The polyphenylene ethers that are so obtained, are completely blocked and have a high molecular weight, a pale intresic colour and a high stability to thermal and thermooxidative attack.

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