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    3.
    发明专利
    未知

    公开(公告)号：NL6700491A

    公开(公告)日：1967-07-17

    申请号：NL6700491

    申请日：1967-01-12

    Applicant: BASF AG

    Inventor： ZUERN LUDWIG DR ,  STAHNECKER ERHARD DR ,  GROHMANN JOHANNES DR ,  BUCHHOLZ KARL DR

    IPC: C08J9/00

    Abstract: 1,163,730. Moulding compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 13 Jan., 1967 [15 Jan., 1966], No. 1928/67. Headings C3C and C3P. Particulate moulding compositions consisting of a mixture of a styrene polymer and an expanding agent, wherein the particles contain 0.001-0.6% by weight of the styrene polymer, in homogeneous distribution, of a brominated polymer of a 1,3-diene may be made by polymerizing monomeric styrene in a heating process, with or without other monomers, in the presence of an expanding agent and the brominated polymers and then cooling, or polymerizing styrene in aqueous suspension and adding the bromine compounds, with or without the expanding agent during polymerization at a point when the particles no longer divide. Exemplified styrene polymers are polystyrene and styrene copolymers which contain at least 50% by weight of styrene units. The copolymerization units include 2, methylstyrene, acrylonitrile, methacrylonitrile, esters of acrylic or methacrylic acids and alcohols having 1-8 C, esters of fumaric acid and alcohols having 1-8 C, vinyl pyridine, N-vinyl compounds such as N-vinyl carbazole, butadiene or small amounts of divinylbenzene. Examples of suitable brominated polymers of 1,3-dienes are the bromination products of butadiene polymers, isoprene polymers and chloroprene polymers. Specific examples of suitable brominated polymers are 1,2,5,6 - tetrabromocyclododecane, brominated cyclo-octadiene - (1,5), 1,2,5,6,9,10- hexabromocyclododecane, brominated 1-vinylcyclohexene-(3) or brominated polybutadiene which has a linear structure. Bromination is carried out using elemental bromine, the reaction being carried out in solution or dispersion. Suitable solvents are n-butanol, CS 2 , glacial acetic acid or CCl 4 .

    5.
    发明专利
    未知

    公开(公告)号：DE1770392A1

    公开(公告)日：1972-03-16

    申请号：DE1770392

    申请日：1968-05-11

    Applicant: BASF AG

    Inventor： BRONSTERT KLAUS DR ,  BUCHHOLZ KARL DR ,  ECHTE ADOLF DR ,  HOFMANN JUERGEN

    IPC: C08F291/00 ,  C08F279/02 ,  C08F25/00

    Abstract: 1,256,296. Graft polymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 9 May; 1969 [11 May, 1968], No. 23672/69. Heading C3G. An impact-resistant polymer is produced by continuous polymerization of a solution of an elastomeric polymer in a vinyl aromatic or vinylidene aromatic monomer, the starting materials being introduced into an isothermal polymerization stage where a mixture containing less than 50% by weight of solids is prepared at a temperature of 50‹ to 150‹ C. while mixing, said mixture being continuously polymerized in a downstream polymerization stage in one or more tubular reactors at a temperature of up to 250‹ C. to give a mixture containing more than 60% by weight of solids, and then freed from volatile constituents, the said starting materials, prior to being fed into the said isothermal polymerization stage, being prepolymerized to such an extent that the solids content of the mixture is from 1ÀI to 2 times the content by weight of elastomeric polymer but not more than 16% by weight. Acrylic or methacrylic acid or an alkyl ester or nitrile thereof may be copolymerized with the aromatic monomer. In the examples, the polymerization mixture comprises polybutadiene or butadiene-styrene rubber, styrene, ethylbenzene and mineral oil.

    10.
    发明专利
    未知

    公开(公告)号：AT265663B

    公开(公告)日：1968-10-25

    申请号：AT37467

    申请日：1967-01-13

    Applicant: BASF AG

    Inventor： ZUERN LUDWIG DR ,  STAHNECKER ERHARD DR ,  GROHMANN JOHANNES DR ,  BUCHHOLZ KARL DR

    IPC: C08J9/00

    Abstract: 1,163,730. Moulding compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 13 Jan., 1967 [15 Jan., 1966], No. 1928/67. Headings C3C and C3P. Particulate moulding compositions consisting of a mixture of a styrene polymer and an expanding agent, wherein the particles contain 0.001-0.6% by weight of the styrene polymer, in homogeneous distribution, of a brominated polymer of a 1,3-diene may be made by polymerizing monomeric styrene in a heating process, with or without other monomers, in the presence of an expanding agent and the brominated polymers and then cooling, or polymerizing styrene in aqueous suspension and adding the bromine compounds, with or without the expanding agent during polymerization at a point when the particles no longer divide. Exemplified styrene polymers are polystyrene and styrene copolymers which contain at least 50% by weight of styrene units. The copolymerization units include 2, methylstyrene, acrylonitrile, methacrylonitrile, esters of acrylic or methacrylic acids and alcohols having 1-8 C, esters of fumaric acid and alcohols having 1-8 C, vinyl pyridine, N-vinyl compounds such as N-vinyl carbazole, butadiene or small amounts of divinylbenzene. Examples of suitable brominated polymers of 1,3-dienes are the bromination products of butadiene polymers, isoprene polymers and chloroprene polymers. Specific examples of suitable brominated polymers are 1,2,5,6 - tetrabromocyclododecane, brominated cyclo-octadiene - (1,5), 1,2,5,6,9,10- hexabromocyclododecane, brominated 1-vinylcyclohexene-(3) or brominated polybutadiene which has a linear structure. Bromination is carried out using elemental bromine, the reaction being carried out in solution or dispersion. Suitable solvents are n-butanol, CS 2 , glacial acetic acid or CCl 4 .

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