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63 条记录 (耗时 0.036 秒)

    Process for synthesizing thiol terminated polymers
    22.
    发明申请
    Process for synthesizing thiol terminated polymers 有权
    硫醇封端聚合物的合成方法

    公开(公告)号：US20070232783A1

    公开(公告)日：2007-10-04

    申请号：US11710305

    申请日：2007-02-23

    申请人： Graeme Moad ,  Ezio Rizzardo ,  San Thang

    发明人： Graeme Moad ,  Ezio Rizzardo ,  San Thang

    IPC分类号： C08F6/00

    CPC分类号： C08F293/005 ,  C08F8/00 ,  C08F2438/03 ,  C08F120/14 ,  C08F112/08 ,  C08F120/18

    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 —S—(C═S)— into derived polymers having thiol end groups of the formula —SH. The process includes contacting the aforedescribed starting polymers, with a reagent having the formula Xa Yb, wherein Xa is a nucleophilic group and Yb is an extracting group that results in the starting polymer and a byproduct, which is then separated from the derived polymer by conventional separation processes. The derived polymer is free from any odor or color that is sometimes associated with the starting polymer and it can be used in making optical lenses, such as contact lenses.

    摘要翻译： 本发明涉及将具有式-S-（C-S） - 的硫代羰基硫基的一种或多种起始聚合物切割成具有式-SH硫醇端基的衍生聚合物的方法。 该方法包括使上述起始聚合物与具有式X的试剂接触 Y＆lt; b＆lt; b＆lt; 是亲核基团，Y B是导致起始聚合物和副产物的提取基团，然后通过常规分离方法与衍生的聚合物分离。 衍生的聚合物没有任何有时与起始聚合物缔合的气味或颜色，并且可以用于制造光学透镜，例如隐形眼镜。

    Microgels and process for their preparation
    24.
    发明授权
    Microgels and process for their preparation 有权
    微凝胶及其制备方法

    公开(公告)号：US06462114B2

    公开(公告)日：2002-10-08

    申请号：US09969710

    申请日：2001-10-03

    申请人： Charles T. Berge ,  Michael Fryd ,  Jeffrey W. Johnson ,  Graeme Moad ,  Ezio Rizzardo ,  Christopher Scopazzi ,  San Hoa Thang

    发明人： Charles T. Berge ,  Michael Fryd ,  Jeffrey W. Johnson ,  Graeme Moad ,  Ezio Rizzardo ,  Christopher Scopazzi ,  San Hoa Thang

    IPC分类号： C08K310

    CPC分类号： C08F265/04 ,  C08F290/04 ,  C08F290/061 ,  C08F293/00 ,  C08F293/005 ,  Y10S514/944

    摘要： A process for forming a microgel which comprises a crosslinked core and a multiplicity of linear polymeric arms attached to the core, wherein the process comprises (a) first forming a halogen atom terminated prepolymer with a weight average molecular weight from 1,000 to 25,000 by polymerizing monoethylenically unsaturated monomers in the presence of an organic sulfonyl halide, an organic complexing agent and a transition metal (i.e., Cu, Ru, Ni, Re, Pd, Fe, or Rh); and (b) subsequently polymerizing the prepolymer with a mixture of monoethylenically unsaturated monomers and 0.5 to 60 mole percent, based on the total moles of monomer and prepolymer, of multi-olefinic polymerizable monomers to form a microgel with a weight average molecular weight of 10,000 to 100,000,000 and crosslinked core.

    摘要翻译： 一种形成微凝胶的方法，其包括交联核心和连接到核心上的多个线性聚合物臂，其中所述方法包括（a）首先通过聚合单烯属化合物形成重均分子量为1,000至25,000的卤素原子封端的预聚物 在有机磺酰卤，有机络合剂和过渡金属（即Cu，Ru，Ni，Re，Pd，Fe或Rh）存在下的不饱和单体; 和（b）随后将单体烯属不饱和单体的混合物和基于单体和预聚物的总摩尔数为0.5至60摩尔％的多烯属可聚合单体聚合预聚物以形成重均分子量为10,000的微凝胶 至100,000,000和交联核心。

    Process for synthesizing thiol terminated polymers
    27.
    发明授权
    Process for synthesizing thiol terminated polymers 有权
    硫醇封端聚合物的合成方法

    公开(公告)号：US08283436B2

    公开(公告)日：2012-10-09

    申请号：US11710305

    申请日：2007-02-23

    申请人： Graeme Moad ,  Ezio Rizzardo ,  San Hoa Thang

    发明人： Graeme Moad ,  Ezio Rizzardo ,  San Hoa Thang

    IPC分类号： C08F6/00

    CPC分类号： C08F293/005 ,  C08F8/00 ,  C08F2438/03 ,  C08F120/14 ,  C08F112/08 ,  C08F120/18

    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 —S—(C═S)— into derived polymers having thiol end groups of the formula —SH. The process includes contacting the aforedescribed starting polymers, with a reagent having the formula Xa Yb, wherein Xa is a nucleophilic group and Yb is an extracting group that results in the starting polymer and a byproduct, which is then separated from the derived polymer by conventional separation processes. The derived polymer is free from any odor or color that is sometimes associated with the starting polymer and it can be used in making optical lenses, such as contact lenses.

    摘要翻译： 本发明涉及将具有式-S-（C = S） - 的硫代羰基硫基的一种或多种起始聚合物切割成具有式-SH硫醇末端基的衍生聚合物的方法。 该方法包括使上述起始聚合物与式Xa Yb的试剂接触，其中Xa是亲核基团，Yb是导致起始聚合物和副产物的提取基团，然后通过常规方法从衍生的聚合物中分离出来 分离过程。 衍生的聚合物没有任何有时与起始聚合物缔合的气味或颜色，并且可以用于制造光学透镜，例如隐形眼镜。

    Polymerization with living characteristics
    29.
    发明授权
    Polymerization with living characteristics 失效
    具有生活特性的聚合

    公开(公告)号：US07662986B2

    公开(公告)日：2010-02-16

    申请号：US11805929

    申请日：2007-05-25

    申请人： Tam Phuong Le ,  Graeme Moad ,  Ezio Rizzardo ,  San Hoa Thang

    发明人： Tam Phuong Le ,  Graeme Moad ,  Ezio Rizzardo ,  San Hoa Thang

    IPC分类号： C07C327/00 ,  C07C255/00

    CPC分类号： C08K5/38 ,  C07C327/36 ,  C07C329/00 ,  C07F9/4065 ,  C08F2/38 ,  C08F12/08 ,  C08F293/00 ,  C08F293/005 ,  C08L25/06

    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 are 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（结构为CH2-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Q，R，U，V，Z，Z'，m，p和q如文中所定义。

    Microgels and process for their preparation
    30.
    发明授权
    Microgels and process for their preparation 有权
    微凝胶及其制备方法

    公开(公告)号：US06822056B2

    公开(公告)日：2004-11-23

    申请号：US09969704

    申请日：2001-10-03

    申请人： Charles T. Berge ,  Michael Fryd ,  Jeffrey W. Johnson ,  Graeme Moad ,  Ezio Rizzardo ,  Christopher Scopazzi ,  San Hoa Thang

    发明人： Charles T. Berge ,  Michael Fryd ,  Jeffrey W. Johnson ,  Graeme Moad ,  Ezio Rizzardo ,  Christopher Scopazzi ,  San Hoa Thang

    IPC分类号： C08F400

    CPC分类号： C08F265/04 ,  C08F290/04 ,  C08F290/061 ,  C08F293/00 ,  C08F293/005 ,  Y10S514/944

    摘要： A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises: I) introducing mono-olefinic monomer, catalyst, and initiator into a reactor in the absence of multi-olefinic monomer and producing an activatable prepolymer, component B; II) contacting the product of I) with multi-olefinic monomer to produce components A and C, optionally in the presence of additional initiator; also optionally in the presence of additional mono-olefinic monomer and initiator; the ratio of components A/(B+C) can be controlled by varying the mole ratio of Component B/multi-olefinic monomer from 0.05/1 up to 5/1, by decreasing the mole ratio to increase the ratio of A/(B+C), and increasing the mole ratio to decrease the ratio of A/(B+C).

    摘要翻译： 一种制备使用广泛可活化预聚物的微凝胶的方法; 在该方法中，交联组分A和可溶组分B和C的聚合物组合物在催化剂和引发剂存在下由单烯烃和多烯属单体形成; 该方法包括：I）在不存在多烯属单体的情况下将单烯烃单体，催化剂和引发剂引入反应器，并产生可活化的预聚物组分B; II）使I）的产物与多烯属单体接触， 产生组分A和C，任选地在另外的引发剂的存在下; 也可任选在另外的单烯烃单体和引发剂的存在下进行; 可以通过将组分B /多烯烃单体的摩尔比从0.05 / 1增加到5/1来控制组分A /（B + C）的比例，通过降低摩尔比以增加A /（ B + C），并增加摩尔比以降低A /（B + C）的比例。