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    STYROL-BUTADIEN-BLOCKCOPOLYMERMISCHUNGEN FÜR SCHRUMPFFOLIEN
    1.
    发明公开
    STYROL-BUTADIEN-BLOCKCOPOLYMERMISCHUNGEN FÜR SCHRUMPFFOLIEN 审中-公开
    苯乙烯 - 丁二烯嵌段共聚物，用于收缩膜

    公开(公告)号：EP2294131A1

    公开(公告)日：2011-03-16

    申请号：EP09769227.1

    申请日：2009-06-23

    Applicant: BASF SE

    Inventor： MÜLLER, Matthias ,  KNOLL, Konrad ,  MEHLER, Christof ,  STEININGER, Helmut ,  GÜNTHERBERG, Norbert ,  WAGNER, Daniel ,  SCHUSTER, Michael ,  VERLINDEN, Geert ,  GREGER, Florian

    IPC: C08L53/02 ,  C08F297/04

    Abstract: A mixture comprising a) 5 to 95 wt.-% of a copolymer A that contains one or more copolymer blocks (B/S)
    A , each made of 65 to 95 wt.-% of vinyl aromatic monomers and 5 to 35 wt.-% dienes and having a glass transition temperature Tg
    A in the range of 40° to 90°C, b) 5 to 95 wt.-% of a block copolymer B containing at least one hard block S made of 95 to 100 wt.-% of vinyl aromatic monomers and 0 to 5 wt.-% dienes, one or more copolymer blocks (B/S)
    A , each made of 65 to 95 wt.-% of vinyl aromatic monomers and 5 to 35 wt.-% dienes and having a glass transition temperature Tg
    A  in the range of 40° to 90°C and one or more copolymer blocks (B/S)
    B , each made of 20 to 60 wt.-% of vinyl aromatic monomers and 40 to 80 wt.-% dienes and having a glass transition temperature Tg
    B in the range of –70° to 0°C, c) 0 to 45 wt.-% of A and B of various thermoplastic polymers C and d) 0 to 6 wt.-% of processing aids D, wherein the total of A through D is 100 wt.-%, and use thereof for the production of shrink-wrap films.

    VERFAHREN ZUR HERSTELLUNG VON GEREINIGTEM CAPROLACTAM AUS DER BECKMANN-UMLAGERUNG VON CYCLOHEXANONOXIM
    2.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON GEREINIGTEM CAPROLACTAM AUS DER BECKMANN-UMLAGERUNG VON CYCLOHEXANONOXIM 有权
    PROCESS生产纯化己内酰胺FROM环己酮肟的贝克曼重排

    公开(公告)号：EP2935210A1

    公开(公告)日：2015-10-28

    申请号：EP13814082.7

    申请日：2013-12-17

    Applicant: BASF SE

    Inventor： FISCHER, Rolf Hartmut ,  GEHRKEN, Henning-Peter ,  ANSMANN, Andreas ,  MÜLLER, Matthias ,  MILLER, Christian

    IPC: C07D201/16

    CPC classification number: C07D201/16

    Abstract: A method is described for the production of purified caprolactam, comprising the steps: a) extraction with an organic extraction agent of raw caprolactam, obtained from the Beckmann rearrangement of cyclohexanone oxime, b) separation of the organic phase from step a), c) distillative separation of the organic extraction agent from the organic phase from step b), obtaining aqueous extract lactam, wherein, prior to distillative separation, an aqueous alkali hydroxide solution is added to a volume of 0 to 10 mmol/kg caprolactam, d) addition of 0 to 30 mmol alkali hydroxide/kg caprolactam to the aqueous extract lactam from step c), e) distillative dewatering of the aqueous extract lactam from step d) which has been mixed with alkali hydroxide, f) freeing the caprolactam from step e) of by-products with lower and higher boiling points than caprolactam by distillation, wherein at least 1.5 mmol alkali hydroxide/kg caprolactam is added in steps c) and d) combined.

    VERFAHREN ZUR HERSTELLUNG FLAMMGESCHÜTZTER THERMOPLASTISCHER FORMMASSEN
    5.
    发明公开
    VERFAHREN ZUR HERSTELLUNG FLAMMGESCHÜTZTER THERMOPLASTISCHER FORMMASSEN 有权
    用于生产的阻燃热塑性模塑料

    公开(公告)号：EP2627491A2

    公开(公告)日：2013-08-21

    申请号：EP11770420.5

    申请日：2011-10-13

    Applicant: BASF SE

    Inventor： MÜLLER, Matthias ,  GÜNTHERBERG, Norbert

    IPC: B29C47/00 ,  B29C47/10

    CPC classification number: C08J3/203 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0021 ,  B29C47/1045 ,  B29C47/1081 ,  B29C47/38 ,  B29C47/6087 ,  B29K2105/0005 ,  B29K2105/0026 ,  B29K2995/0016 ,  B29K2995/0059 ,  C08K7/24

    Abstract: The invention relates to a method for producing thermoplastic molding compounds, comprising: A) 40 to 99 wt % of at least one thermoplastic polymer, B) 1 to 60 wt % of a flame-proofing agent component containing an expandable graphite, and C) 0 to 60 wt % of further additives, by melt-mixing components A), B) and C) in a screw-type extruder, wherein the screw-type extruder, along the feed direction, comprises, in the following order, at least one dosing zone, a plastifying zone, a homogenizing zone, a second dosing zone, and a discharge zone, in that the dosing takes place into the screw-type extruder having the length L, wherein the length L is defined as the section starting with the first dosing unit for adding components A, B and/or C and ending, in the feed direction, at the discharge opening, a melt is generated after adding components A, B and C in the range of 0 liter to 0.15 liter in a first method step in the presence of component B1), and in a second method step, after the addition of component B1) in the range of 0.5 liter to 0.95 liter, component B1) is mixed into said melt, wherein said method offers technical advantages.

    THERMOPLASTISCHE FORMMASSEN MIT VERBESSERTEN OPTISCHEN EIGENSCHAFTEN
    10.
    发明公开
    THERMOPLASTISCHE FORMMASSEN MIT VERBESSERTEN OPTISCHEN EIGENSCHAFTEN 有权
    具有改进的光学性能的热塑性模塑材料

    公开(公告)号：EP2553018A1

    公开(公告)日：2013-02-06

    申请号：EP11709734.5

    申请日：2011-03-23

    Applicant: BASF SE

    Inventor： MÜLLER, Matthias ,  LEBER, Ludger ,  DATKO, Achim ,  BRAUN, Leonie Felicitas ,  LEMAIRE, Christian ,  CHAROENSIRISOMBOON, Piyada ,  PEPERS, Michel

    IPC: C08L33/12 ,  C08L25/12 ,  C08L51/04

    CPC classification number: C08L51/04 ,  C08L25/12 ,  C08L33/12 ,  C08L2205/03 ,  C08L2666/04 ,  C08L2666/06

    Abstract: The present invention relates to thermoplastic molding compositions comprising a mixture of (a) 10 to 50% by weight, based on the sum of components (A), (B) and (C), of a methyl methacrylate polymer as component (A) and (b) 20 to 60% by weight, based on the sum of the components (A), (B) and (C), of a copolymer as component (B), obtainable by polymerizing a vinylaromatic monomer and a vinyl cyanide, and 20 to 70% by weight, based on the sum of components (A), (B) and (C), of graft copolymer as component (C), obtainable from (c1) 50 to 70% by weight, based on (C), of a core as component (C1), obtainable by polymerizing a 1,3-diene and a vinylaromatic monomer and an agglomeration polymer and (c2) 15 to 25% by weight, based on (C), of a first graft shell as component (C2), obtainable by polymerizing a vinylaromatic monomer, a C
    1 -C
    8 -alkyl ester of methacrylic acid and/or a C
    1 -C
    8 -alkyl ester of acrylic acid and a crosslinking monomer and (c3) 15 to 25% by weight, based on (C), of a second graft shell as component (C3), obtainable by polymerizing a C
    1 -C
    8 -alkyl ester of methacrylic acid as component (C31) and a further monomer as component (C32), it being essential to the invention that component (C32) is a vinylaromatic monomer and graft copolymer (C) is prepared by emulsion polymerization and isolated from the reaction mixture by shear precipitation, and to processes for producing these molding compositions, to the use thereof and to the moldings obtainable thereby.

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