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    NICHTBLOCKENDE FESTHARZE VON VINYLESTER-MISCHPOLYMERISATEN
    12.
    发明公开
    NICHTBLOCKENDE FESTHARZE VON VINYLESTER-MISCHPOLYMERISATEN 有权
    不能阻止END硬质树脂乙烯基酯共聚物

    公开(公告)号：EP1756180A1

    公开(公告)日：2007-02-28

    申请号：EP05742889.8

    申请日：2005-05-18

    申请人： Wacker Polymer Systems GmbH & Co. KG

    发明人： STARK, Kurt ,  LUMPP, Andreas Rua Vicente Oropallo, 130 ,  HÖGL, Christian

    IPC分类号： C08F218/08 ,  C08F263/04 ,  C09D131/04

    CPC分类号： C08F218/08

    摘要： The invention relates to non-blocking solid resins that are based on vinyl ester mixed polymers, comprising at least two different glass transition phases. Said resins are obtained by radical polymerization in substance or in solution of a) 50 to 97 % by weight, based on the total amount of comonomers M1 and M2, of one or more comonomers M1 from the group including vinyl esters of unbranched or branched alkyl carbonic acids having 1 to 15 C atoms, and optionally one or more alpha olefins, whereby the monomers M1 result in homopolymers having a glass transition temperature Tg 50 °C, and c) the copolymerization parameters for copolymerization of the comonomers M1 with the comonomers M2 being r1 2.0, and d) the comonomers M2 are provided before start of polymerization either completely or partially and at least in an amount of 3 % by weight, based on the total amount of comonomers M1 and M2.

    EPOXY-MODIFIZIERTE VINYLCHLORID-VINYLESTER-COPOLYMER-FESTHARZE
    14.
    发明授权
    EPOXY-MODIFIZIERTE VINYLCHLORID-VINYLESTER-COPOLYMER-FESTHARZE 有权
    环氧改性氯乙烯醋酸乙烯酯共聚物硬质树脂

    公开(公告)号：EP1599516B1

    公开(公告)日：2006-08-02

    申请号：EP04717093.1

    申请日：2004-03-04

    申请人： Wacker Polymer Systems GmbH & Co. KG ,  Vinnolit GmbH & Co. KG

    发明人： KAISER, Stephan ,  WEBER, Karl

    IPC分类号： C08F214/06

    CPC分类号： C08F214/06 ,  C08F2/16

    摘要： The invention relates to epoxy-modified vinyl chloride-vinyl ester copolymers in the form of the solid resins thereof. According to the invention, said copolymers can be obtained by means of the aqueous, radically initiated polymerisation of a mixture containing a) between 50 and 90 wt. % of vinyl chloride, b) between 5 and 25 wt. % of vinyl monomers containing epoxide, c) between 5 and 25 wt. % of at least one vinyl ester of unbranched or branched alkyl carboxylic acids containing between 1 and 18 C atoms, and d) between 0 and 40 wt. % of other comonomers that can be copolymerised with a), b) and c), the amounts in wt. % being added together to equal 100 wt. %. The thus obtained aqueous dispersions are then dried.

    VERFAHREN ZUR HERSTELLUNG VON POLYVINYLALKOHOL-FREIEN, WÄSSRI GEN POLYMERDISPERSIONEN
    16.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON POLYVINYLALKOHOL-FREIEN, WÄSSRI GEN POLYMERDISPERSIONEN 有权
    工艺制造聚乙烯醇水-FREE，WÄSSRIGEN聚合物分散体

    公开(公告)号：EP1646664A1

    公开(公告)日：2006-04-19

    申请号：EP04740794.5

    申请日：2004-07-08

    申请人： Wacker Polymer Systems GmbH & Co. KG

    发明人： STARK, Kurt ,  HÖGL, Christian

    IPC分类号： C08F218/08 ,  C08F2/30 ,  C08F283/00

    CPC分类号： C08F283/06 ,  C08F2/30

    摘要： The invention relates to a method for the production of polyvinyl alcohol-free, aqueous polymer dispersions by means of radical polymerisation of one or several ethylenically unsaturated monomers in an aqueous medium. The invention is characterised in that polymerisation occurs in the presence of a stabilisator system, containing a) one or several polyalkylene oxides having identical or different structural units from the group comprising -(CH2)n-O- wherein n = 2 to 4, -CH2-CHR-O- wherein R = C1- to C15- alkyl, -CH2-CHOR′-O- wherein R′ = H, C1- to C15-alkyl, containing, in the case of alkylene oxide-mixed polymerisates, alkylene oxide units with static distribution, and with identical or different end groups R′′ from the group comprising an H group, OH group, alkyl group and O-alkyl group. The alkyl radical can be branched or unbranched and is a C1- to C20 alkyl radical, and b) one or several compounds of the group comprising condensation products of alkylene oxides having 2 to 4 C atoms with linear or branched alkyl alcohol having 6 to 24 C- atoms, alkyl phenols, or linear and branched alkyl monocarboxylic acids having 6 to 24 C atoms, and block copolymers made of at least two different alkylene oxides having 2 to 4 C atoms.