Controlled radical polymerization in water-in-water dispersion

    公开(公告)号:US11168165B2

    公开(公告)日:2021-11-09

    申请号:US16191698

    申请日:2018-11-15

    Abstract: The present invention relates to a method for preparing an aqueous dispersion of water-soluble polymers, which comprises a step (E) of radical polymerization, wherein the following are brought into contact in an aqueous medium (M) in which the synthesised polymer is not soluble: at least one ethylenically unsaturated monomer which is soluble in the aqueous medium (M); at least one source of free radicals; and a reactive stabiliser which comprises: a polymer chain (CP) which is soluble in the medium (M), a group (G) providing the radical polymerization of step (E) with a living and controlled nature, such as, for example, a group carrying a thiocarbonylthio —S(C═S)— group.

    Preparation of amphiphilic block polymers by controlled radical micellar polymerisation
    2.
    发明授权
    Preparation of amphiphilic block polymers by controlled radical micellar polymerisation 有权
    通过受控自由基胶束聚合制备两亲嵌段聚合物

    公开(公告)号:US09580535B2

    公开(公告)日:2017-02-28

    申请号:US14353360

    申请日:2012-10-24

    Abstract: The present invention relates to the preparation of block copolymers, which can be used in particular as rheology agents, suitable, inter alia, for oil extraction, comprising a step of radical micellar polymerization wherein the following are brought into contact in an aqueous medium: —hydrophilic monomers, dissolved or dispersed in the aqueous medium; —hydrophobic monomers in the form of a micellar solution, i.e. containing, in a dispersed state, micelles comprising these hydrophobic monomers; —at least one radical polymerization initiator; and —at least one radical polymerization control agent. The polymers obtained according to the invention can be used in particular for enhanced oil recovery (EOR).

    Abstract translation: 嵌段共聚物的制备本发明涉及嵌段共聚物的制备,其可特别用作流变剂,特别适用于油提取,包括自由基胶束聚合步骤,其中使下列物质在水性介质中接触: 溶解或分散在水介质中的亲水单体; 以胶束溶液形式的疏水单体,即分散状态的包含这些疏水单体的胶束; - 至少一个自由基聚合引发剂; 和至少一种自由基聚合控制剂。 根据本发明获得的聚合物特别可用于增强油回收(EOR)。

    Controlled radical polymerization in water-in-water dispersion

    公开(公告)号:US10160821B2

    公开(公告)日:2018-12-25

    申请号:US14383201

    申请日:2013-03-11

    Abstract: The present invention relates to a method for preparing an aqueous dispersion of water-soluble polymers, which comprises a step (E) of radical polymerization, wherein the following are brought into contact in an aqueous medium (M) in which the synthesized polymer is not soluble: at least one ethylenically unsaturated monomer which is soluble in the aqueous medium (M); at least one source of free radicals; and a reactive stabilizer which comprises: a polymer chain (CP) which is soluble in the medium (M), a group (G) providing the radical polymerization of step (E) with a living and controlled nature, such as, for example, a group carrying a thiocarbonylthio —S(C═S)— group.

    Preparation of Amphiphilic Block Polymers by Controlled Radical Micellar Polymerisation
    7.
    发明申请
    Preparation of Amphiphilic Block Polymers by Controlled Radical Micellar Polymerisation 有权
    通过控制自由基胶束聚合制备两亲嵌段聚合物

    公开(公告)号:US20140378617A1

    公开(公告)日:2014-12-25

    申请号:US14353360

    申请日:2012-10-24

    Abstract: The present invention relates to the preparation of block copolymers, which can be used in particular as rheology agents, suitable, inter alia, for oil extraction, comprising a step of radical micellar polymerisation wherein the following are brought into contact in an aqueous medium: —hydrophilic monomers, dissolved or dispersed in the aqueous medium; —hydrophobic monomers in the form of a micellar solution, i.e. containing, in a dispersed state, micelles comprising these hydrophobic monomers; —at least one radical polymerisation initiator; and —at least one radical polymerisation control agent. The polymers obtained according to the invention can be used in particular for enhanced oil recovery (EOR).

    Abstract translation: 本发明涉及嵌段共聚物的制备,其可特别用作流变剂,特别适用于油提取,其包括自由基胶束聚合步骤,其中使下列物质在水性介质中接触: 溶解或分散在水介质中的亲水单体; 以胶束溶液形式的疏水单体,即分散状态的包含这些疏水单体的胶束; - 至少一个自由基聚合引发剂; 和至少一种自由基聚合控制剂。 根据本发明获得的聚合物特别可用于增强油回收(EOR)。

    Controlled radical polymerization in water-in-water dispersion
    8.
    发明申请
    Controlled radical polymerization in water-in-water dispersion 审中-公开
    水包水分散体中的受控自由基聚合

    公开(公告)号:US20150057411A1

    公开(公告)日:2015-02-26

    申请号:US14383201

    申请日:2013-03-11

    Abstract: The present invention relates to a method for preparing an aqueous dispersion of water-soluble polymers, which comprises a step (E) of radical polymerization, wherein the following are brought into contact in an aqueous medium (M) in which the synthesised polymer is not soluble: at least one ethylenically unsaturated monomer which is soluble in the aqueous medium (M); at least one source of free radicals; and a reactive stabiliser which comprises: a polymer chain (CP) which is soluble in the medium (M), a group (G) providing the radical polymerization of step (E) with a living and controlled nature, such as, for example, a group carrying a thiocarbonylthio-S(C═S)— group.

    Abstract translation: 本发明涉及一种制备水溶性聚合物的水分散体的方法,其包括自由基聚合步骤(E),其中使下列物质在合成聚合物不是的水性介质(M)中接触 至少一种可溶于水介质(M)的烯属不饱和单体; 至少一个自由基来源; 和活性稳定剂,其包含:可溶于所述介质(M)的聚合物链(CP),提供具有活性和受控性质的步骤(E)的自由基聚合的基团(G),例如, 一个携带硫代硫代硫代S(C = S) - 基团的基团。

    Dispersed phase polymerization of halogenated vinyl monomers in the presence of live reactive stabilizers
    9.
    发明申请
    Dispersed phase polymerization of halogenated vinyl monomers in the presence of live reactive stabilizers 有权
    在活性活性稳定剂存在下卤代乙烯基单体的分散相聚合

    公开(公告)号:US20150011693A1

    公开(公告)日:2015-01-08

    申请号:US14375323

    申请日:2013-01-30

    Abstract: The present invention concerns a method for the dispersed phase polymerisation of halogenated vinyl compounds, having the formula RbRcC═CX1X2, where: X1═F or CI, X2═H, F or CI, each of Rb and Rc, separately represents: —H, CI, F; or—an alkyl group, preferably chlorinated and/or fluorinated, and more advantageously perchlorinated or perfluorinated, comprising a step (E1) wherein said monomers are introduced into an aqueous phase together with—at least one source of free radicals; and—at least one reactive stabiliser comprising a polymer chain and a thiocarbonylthio-S group (C═S)—, said polymer chain comprising non-(N vinyl lactam) monomer units.

    Abstract translation: 本发明涉及一种具有式RbRcC≡CX1X2的卤代乙烯基化合物的分散相聚合方法,其中:X1 = F或Cl,X2 = H,F或Cl各自为Rb和Rc,分别表示:-H ,CI,F; 或优选氯代和/或氟化的烷基,更有利地是氯化的或全氟化的,包括步骤(E1),其中所述单体与至少一种自由基源一起引入水相中; 和至少一种包含聚合物链和硫代羰基硫基-S基团(C = S)的反应性稳定剂,所述聚合物链包含非(N乙烯基内酰胺)单体单元。

Patent Agency Ranking