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    Thermoplastic Materials for the Production of Self-Extinguishing Moldings.
    38.
    发明专利
    Thermoplastic Materials for the Production of Self-Extinguishing Moldings. 未知

    公开(公告)号：GB1166290A

    公开(公告)日：1969-10-08

    申请号：GB5812466

    申请日：1966-12-29

    Applicant: BASF AG

    Inventor： WILLERSINN HERBERT ,  PRIEBE EDMUND ,  KASTNING ERNST-GUENTHER ,  NAARMANN HERBERT

    IPC: C08F279/02 ,  C08J9/00 ,  C08L15/02 ,  C08L25/04

    Abstract: 1,166,290. Self-extinguishing thermoplastic compositions. BADISCHE ANILIN- & SODAFABRIK A.G. 29 Dec., 1966 [5 Jan., 1966], No. 58124/66. Headings C3C and C3P. A self-extinguishing thermoplastic composition having a bromine content of at least 0.1% by wt. consists of a thermoplastic polymer which contains more than 50% by wt. of styrene or a nuclear alkyl-substituted styrene and a polymer of butadiene and/or isoprene which has at least 50% of its base units combined by 1,2-linkages and which is brominated to a content of 40-75% by wt. of bromine. The styrene polymer may be polystyrene. In an example, a mixture of styrene and acrylonitrile was polymerized in an aq. mixture of benzoyl peroxide, barium sulphate and the brominated polyisoprene. In comparative examples brominated polymers of butadiene and isoprene having 1,4-linkages were used. Porous polymers are produced in the examples by polymerizing styrene in an aq. mixture of (A) polyvinylpyrrolidone and sodium pyrophosphate; (B) barium sulphate; or (C) a copolymer of N-vinyl-pyrrolidone and methyl acrylate, sodium pyrophosphate and a polymer of diisopropylbenzene; and pentane, benzoyl peroxide and the brominated polybutadiene and the polystyrene beads produced are preexpanded in steam and then formed into blocks by further steam treatment.

    Production of 1,3-Diene Polymers in Aqueous Emulsion
    39.
    发明专利
    Production of 1,3-Diene Polymers in Aqueous Emulsion 未知

    公开(公告)号：GB1164375A

    公开(公告)日：1969-09-17

    申请号：GB313267

    申请日：1967-01-20

    Applicant: BASF AG

    Inventor： NAARMANN HERBERT ,  STABENOW JOACHIM ,  KASTNING ERNST-GUENTHER

    IPC: C08F36/04

    Abstract: 1,164,375. Redox catalysts for diene polymerization. BADISCHE ANILIN- & SODAFABRIK A.G. 20 Jan., 1967 [22 Jan., 1966] No. 3132/67. Heading C3P. A 1,3-diene or a monomer mixture containing a 1,3-diene is polymerized in aqueous emulsion using a redox catalyst of at least two components, wherein each component of the catalyst system is soluble in the monomer or monomer mixture to an amount of at least 1 % under polymerization conditions, one of the components comprising a butadiene sulphone. Suitable peroxides include cumene hydroperoxide, pinene hydroperoxide, benzoyl peroxide, p, p 1 -dinitrobenzoyl peroxide, lauroyl peroxide, diethyl-, ditertiary butyl- and ditolyl peroxycarbonate, ethyl α-methoxy peroxyacetate, 3 - phenyl - 3 - tert. - butyl peroxyphthalide, and γ-tertiary butyl peroxyvalerolactone.

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