Catalytic polymerization process
    1.
    发明申请
    Catalytic polymerization process 有权
    催化聚合工艺

    公开(公告)号:US20050014911A1

    公开(公告)日:2005-01-20

    申请号:US10918772

    申请日:2004-08-13

    摘要: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.

    摘要翻译: 本发明涉及一种用于控制至少两种不饱和单体的共聚物结构的方法,所述共聚物在含钴链转移剂存在下通过自由基聚合制备,包括分子量分支控制和乙烯基端基终止 通过改变单体摩尔比的变量,它们的相对链转移常数,聚合温度和转化度和钴链转移剂的量中的至少一个变量; 和由此制成的聚合物。

    Catalytic polymerization process
    5.
    发明授权
    Catalytic polymerization process 有权
    催化聚合工艺

    公开(公告)号:US06624261B1

    公开(公告)日:2003-09-23

    申请号:US09125467

    申请日:1998-08-19

    IPC分类号: C08F200

    摘要: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free-radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight, degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.

    摘要翻译: 本发明涉及在含钴链转移剂存在下,通过自由基聚合制备的至少两种不饱和单体的共聚物结构的方法,包括分子量,支化度和乙烯基端基的控制 通过改变单体摩尔比的变量,它们的相对链转移常数,聚合温度和转化度和钴链转移剂量的至少一个变量来进行组终止; 和由此制成的聚合物。

    PROCESS OF MICROGEL SYNTHESIS AND PRODUCTS PRODUCED THEREFROM
    7.
    发明申请
    PROCESS OF MICROGEL SYNTHESIS AND PRODUCTS PRODUCED THEREFROM 有权
    微胶囊合成方法及其制备的产品

    公开(公告)号:US20060142404A1

    公开(公告)日:2006-06-29

    申请号:US10257991

    申请日:2001-04-06

    IPC分类号: B29C44/34

    摘要: The invention provides in one aspect a process for preparing a microgel by RAFT polymerizing in the presence of a RAFT chain transfer agent, one or more solvophobic monomers and one or more solvophilic monomers to form one or more block copolymers comprising one or more solvophobic blocks and one or more solvophilic blocks wherein the solvophobic block is insoluble in a dispersing medium and the solvophilic block is soluble in the dispersing medium. The block copolymer is dispersed in the dispersing medium to form micelles, which is then stabilized to form the microgel. The dispersing medium can be aqueous or lipophilic. The method of the present invention also permits one to encapsulate a wide variety of materials, such as pigments, dye molecules, and aluminum flakes used in metallized paints.

    摘要翻译: 本发明在一个方面提供了一种通过RAFT聚合制备微凝胶的方法,其在RAFT链转移剂,一种或多种疏水单体和一种或多种溶剂亲油性单体的存在下聚合以形成一种或多种包含一种或多种疏乳嵌段的嵌段共聚物和 一种或多种溶剂亲和性嵌段,其中所述疏水性嵌段不溶于分散介质,并且所述溶剂性嵌段可溶于所述分散介质中。 将嵌段共聚物分散在分散介质中以形成胶束,然后将其稳定化以形成微凝胶。 分散介质可以是水性或亲油性的。 本发明的方法还允许包封各种材料,例如用于金属化涂料中的颜料,染料分子和铝薄片。

    PROCESS FOR TRANSFORMING THE END GROUPS OF POLYMERS
    8.
    发明申请
    PROCESS FOR TRANSFORMING THE END GROUPS OF POLYMERS 有权
    改造聚合物末端组的方法

    公开(公告)号:US20100137548A1

    公开(公告)日:2010-06-03

    申请号:US12528249

    申请日:2007-02-23

    IPC分类号: C08G18/10 C08G75/28

    摘要: The present invention is directed to a process for the cleavage of one or more starting polymers having thiocarbonylthio groups of the formula (I) into derived polymers in which the —S—(C═S)— group is transformed. The process includes contacting the starting polymer containing groups Yb with one or more reagents containing groups Xa to produce the derived polymer and a byproduct containing the groups Yb, wherein the groups Xa is one or more reactive groups and the groups Yb is an extracting group and a byproduct, which is then separated from the derived polymer by conventional separation processes. The derived polymer is free from odor or color that is sometimes associated with the starting polymer and it can be used in making optical lenses, such as high refractive index spectacle lenses.

    摘要翻译: 本发明涉及将具有式(I)的硫代羰基硫基的一种或多种起始聚合物切割成其中-S-(C = S) - 基团被转化的衍生聚合物的方法。 该方法包括使含有基团Yb的起始聚合物与含有基团Xa的一种或多种试剂接触以制备衍生的聚合物和含有基团Yb的副产物,其中基团Xa是一个或多个反应性基团,基团Yb是提取基团, 副产物,然后通过常规分离方法与衍生的聚合物分离。 衍生的聚合物没有有时与起始聚合物相关的气味或颜色,并且可以用于制造光学透镜,例如高折射率眼镜镜片。

    Polymerization with living characteristics
    9.
    发明授权
    Polymerization with living characteristics 有权
    具有生活特性的聚合

    公开(公告)号:US07666962B2

    公开(公告)日:2010-02-23

    申请号:US11805949

    申请日:2007-05-25

    IPC分类号: C08F2/00

    摘要: This invention concerns a free radical polymerization process, selected chain transfer agents employed in the process and polymers made thereby, in which the process comprises preparing polymer of general Formula (A) and Formula (B) comprising contacting: (i) a monomer selected from the group consisting of vinyl monomers (of structure CH2=CUV), maleic anhydride, N-alkylmaleimide, N-arylmaleimide, dialkyl fumarate and cyclopolymerizable monomers; (ii) a thiocarbonylthio compound selected from Formula (C) and Formula (D) having a chain transfer constant greater than about 0.1; and (iii) free radicals produced from a free radical source; the polymer of Formula (A) being made by contacting (i), (ii) C and (iii) and that of Formula (B) by contacting (i), (ii) D, and (iii); and (iv) controlling the polydispersity of the polymer being formed by varying the ratio of the number of molecules of (ii) to the number of molecules of (iii); wherein Q, R, U, V, Z, Z′, m, p and q am as defined in the text.

    摘要翻译: 本发明涉及自由基聚合方法,该方法中使用的选择的链转移剂和由此制备的聚合物,其中该方法包括制备通式(A)和式(B)的聚合物,其包括:(i)选自 由乙烯基单体(结构CH 2 = CUV),马来酸酐,N-烷基马来酰亚胺,N-芳基马来酰亚胺,富马酸二烷基酯和可环化聚合的单体组成的组; (ii)选自式(C)和式(D)的硫代羰基硫代化合物,其链转移常数大于约0.1; 和(iii)自由基产生的自由基; 式(A)的聚合物通过使(i),(ii)D和(iii)接触而使(i),(ii)C和(iii)与式(B) 和(iv)通过改变(ii)的分子数与(iii)的分子数之比来控制形成的聚合物的多分散性; 其中如文中所定义的Q,R,U,V,Z,Z',m,p和q am。