Process for transforming the end groups of polymers
    12.
    发明授权
    Process for transforming the end groups of polymers 有权
    转化聚合物端基的方法

    公开(公告)号:US08569441B2

    公开(公告)日:2013-10-29

    申请号:US12528249

    申请日:2007-02-23

    IPC分类号: C08G18/10 C08G75/00 C08J3/00

    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。

    Process for synthesizing thiol terminated polymers
    15.
    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

    IPC分类号: C08F6/00

    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
    17.
    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

    IPC分类号: C07C327/00 C07C255/00

    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 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。

    Allylic chain transfer agents
    19.
    发明授权
    Allylic chain transfer agents 失效
    烯丙基链转移剂

    公开(公告)号:US5773543A

    公开(公告)日:1998-06-30

    申请号:US635907

    申请日:1996-08-01

    摘要: A process for the free radical initiated polymerization of unsaturated species characterized by the use of compound of Formula (I) as chain transfer agents: ##STR1## wherein: X is selected from hydrogen; CN; optionally substituted aryl; COOH; COOR; C(O)NHR.sup.6 ; C(O)NR.sup.7 R.sup.8 ; and halogen; Q is selected from COOR.sup.1 ; CN; and C(O)NR.sup.7 R.sup.8 ; Y is selected from hydrogen; C.sub.1 to C.sub.6 alkyl; C.sub.1 to C.sub.6 alkyl substituted with one or more substituents selected from hydroxy, amino, C.sub.1 to C.sub.6 alkoxy, C.sub.1 to C.sub.6 alkoxycarbonyl, halogen, CN and optionally substituted aryl; C.sub.1 to C.sub.6 alkenyl; and C.sub.1 to C.sub.6 alkynyl; Z is selected from COOR.sup.2 ; CN; and optionally substituted aryl; R.sup.3 and R.sup.4 are the same or different and are selected from hydrogen C.sub.1 to C.sub.4 alkyl and halogen; or R.sup.3 and R.sup.4 together with carbon atom to which they are attached form part of a carbocyclic or heterocyclic ring structure; and the other substituents are as defined in the text.

    摘要翻译: PCT No.PCT / AU94 / 00672 Sec。 371日期:1996年8月1日 102(e)日期1996年8月1日PCT 1994年11月2日PCT PCT。 出版物WO95 / 12568 日期1995年5月11日使用式(I)化合物作为链转移剂的不饱和物质的自由基引发聚合的方法:其中:X选自氢; CN; 任选取代的芳基; COOH; COOR; C(O)NHR 6; C(O)NR 7 R 8; 和卤素; Q选自COOR1; CN; 和C(O)NR 7 R 8; Y选自氢; C1至C6烷基; 被一个或多个选自羟基,氨基,C 1至C 6烷氧基,C 1至C 6烷氧基羰基,卤素,CN和任选取代的芳基的取代基取代的C1至C6烷基; C1〜C6烯基; 和C 1至C 6炔基; Z选自COOR2; CN; 和任选取代的芳基; R3和R4相同或不同,并且选自C1至C4烷基和卤素; 或R 3和R 4与它们所连接的碳原子一起形成碳环或杂环结构的一部分; 而其它取代基如文中所定义。

    Polymerization with living characteristics
    20.
    发明申请
    Polymerization with living characteristics 失效
    具有生活特性的聚合

    公开(公告)号:US20080139836A1

    公开(公告)日:2008-06-12

    申请号:US11805929

    申请日:2007-05-25

    IPC分类号: C07C327/36

    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CH 2 CO 2),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。