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    5.
    发明专利
    未知

    公开(公告)号：DE1214402B

    公开(公告)日：1966-04-14

    申请号：DEB0073938

    申请日：1963-10-19

    Applicant: BASF AG

    Inventor： NAARMANN DR HERBERT ,  KASTNING DR ERNST-GUENTHER

    IPC: C08F8/48 ,  C08K3/16

    Abstract: Polymers of vinyl methyl ketone or isopropenyl ketone or the cyclization products of such polymers are heated to a temperature of from 30 DEG C. to 800 DEG C. in the presence of a metal halide of a metal of Groups IIIA, IVB, VB, VIB, or VIIB of the Periodic Table (defined) or of iron or zinc in the presence of a dehydrogenating agent, to produce aromatized high-molecular weight compounds. Copolymers of the above ketones containing at least 50% by weight of ketone may also be used. The cyclization products are formed by intramolecular condensation by the action of acid or alkali. The treatment of copolymers with styrene, vinyl chloride, butadiene, isoprene, acrylonitrile, and methacrylonitrile are exemplified.

    10.
    发明专利
    未知

    公开(公告)号：DE1255302B

    公开(公告)日：1967-11-30

    申请号：DEB0082751

    申请日：1965-07-09

    Applicant: BASF AG

    Inventor： BURGER DR HEINZ ,  DAUMILLER DR GUENTHER ,  GROHMANN DR JOHANNES ,  KASTNING DR ERNST-GUENTHER ,  WEBER DR HEINZ ,  WILLERSINN DR HERBERT

    IPC: C08J9/00 ,  C08K5/00 ,  C08K5/02 ,  C08L25/04 ,  C08L65/00 ,  C08F33/08

    Abstract: 1,146,653. Self-extinguishing polymeric compositions. BADISCHE ANILIN- & SODAFABRIK A.G. 7 July, 1966 [9 July, 1965], No. 30552/66. Headings C3C and C3P. A self-extinguishing composition consists of (a) a normally solid thermoplastic polymer of at least 50% by wt. of styrene which may be substituted, and less than 50% of at least one other copolymerizable compound having the group having intimately incorporated therewith (b) an organic bromide, having a plurality of bromine atoms attached to carbon atoms and the bromine atoms constituting more than 40% of the bromide, in such an amount that the composition has a bromine content of 0À1-5%, and (c) 0À01-5% of (a) of a polymer which is prepared from (i) a compound of formula where R 1 , R 2 , R 4 and R 5 are H, halogen or a C 1-4 aliphatic hydrocarbon radical and at least two of the above Rs are where R 7 is a C 1-4 linear aliphatic hydrocarbon radical and R 8 is H or R 7 , and R 3 and R 6 are H or halogen atoms; or (ii) a mixture of the above compounds and a compound of the same formula where R 1 is where R 7 and R 8 are as before and the remaining Rs are H or halogen atoms. The (a) polymer may be polystyrene, a copolymer of styrene and acrylonitrile together with optionally polybutadiene, or a polymer obtained by polymerizing styrene in the presence of polybutadiene. Polymer (c) may be prepared by dehydropolymerization of p- or m-diisopropylbenzene with optionally isopropylbenzene, or 1,2,4-tri- or 1,2,4,5-tetra-isopropylbenzene. The bromide (b) may be hexabromocyclododecane or tris - (2,3 - dibromopropyl) - phosphate. The composition may be made by dissolving the three components in methylene chloride or by extruding the three components, with optionally kaolin; or by polymerizing styrene in the presence of an aq. mixture of polyvinylpyrrolidone, sodium pyrophosphate, benzoyl peroxide and the above (b) and (c) components. The composition may also contain a foaming agent, e.g. pentane or methyl chloride, and may be formed into a foamed sheet or strand.

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