公开(公告)号：US09487598B2

公开(公告)日：2016-11-08

申请号：US14375328

申请日：2013-01-30

Applicant: RHODIA OPERATIONS

Inventor： Mathias Destarac ,  James Wilson

IPC: C08F226/10 ,  C08F2/22 ,  C08F26/06 ,  C08F293/00 ,  C08F2/20 ,  C08F214/06 ,  C08F214/18 ,  C08F2/38 ,  C08F218/08 ,  A61K8/06 ,  A61K8/81 ,  C09D127/08 ,  C09D131/04 ,  C09J127/08 ,  C09J131/04 ,  C09K8/588

CPC classification number: C08F2/22 ,  A61K8/06 ,  A61K8/8123 ,  A61K8/8135 ,  A61K2800/10 ,  A61Q19/00 ,  C08F2/20 ,  C08F2/38 ,  C08F26/06 ,  C08F214/06 ,  C08F214/18 ,  C08F218/08 ,  C08F226/10 ,  C08F293/005 ,  C08F2438/03 ,  C09D127/08 ,  C09D131/04 ,  C09J127/08 ,  C09J131/04 ,  C09K8/588

Abstract: The present invention concerns a method for preparing a polymer comprising a step (EI) for dispersed phase polymerization in the presence of a reactive stabiliser, wherein the following are brought into contact in an aqueous phase:—at least one ethylenically unsaturated monomer; —at least one source of free radicals; and—a reactive stabiliser comprising a polymer chain including monomer units (N-vinyl lactam) and a thiocarbonylthio-S group (C═S)—.

Abstract translation: 本发明涉及一种制备聚合物的方法，其包括在反应性稳定剂存在下进行分散相聚合的步骤（EI），其中使下列物质在水相中接触： - 至少一种烯属不饱和单体; - 至少一个自由基来源; 和包含包含单体单元（N-乙烯基内酰胺）和硫代羰基硫基-S基团（C = S））的聚合物链的反应性稳定剂。

公开(公告)号：US20150166876A1

公开(公告)日：2015-06-18

申请号：US14417197

申请日：2013-07-26

Applicant: RHODIA OPERATIONS

Inventor： Dominique Labarre ,  James Wilson

IPC: C09K8/524 ,  C09K8/528

CPC classification number: C09K8/524 ,  C08F22/385 ,  C08F220/06 ,  C09K8/52 ,  C09K8/528 ,  C09K2208/10 ,  C09K2208/26

Abstract: The invention relates to compositions for inhibiting the formation of deposits in underground formations such as oil wells, comprising, in a solvent medium, polymers P resulting from the radical copolymerisation, preferably controlled and in solution, of a mixture including: monomers having an ethylenically unsaturated structure, selected from monomers that form, by polymerisation, a polymer that has an effect of inhibiting the formation of organic and/or inorganic deposits; and polyethylenically unsaturated, cross-linking monomers carrying at least one group that can be cleaved between two ethylene unsaturations, said polymers P being present in the solvent in the form of dispersed nanogels.

Abstract translation: 本发明涉及用于抑制在地下地层（例如油井）中形成沉积物的组合物，其包括在溶剂介质中，由自由基共聚得到的聚合物P，优选受控并在溶液中，混合物包括：具有烯属不饱和单体 选自通过聚合形成具有抑制有机和/或无机沉积物形成的作用的聚合物的单体的结构; 和携带至少一个能够在两个乙烯不饱和键之间切割的基团的多烯属不饱和的交联单体，所述聚合物P以分散的纳米凝胶的形式存在于溶剂中。

公开(公告)号：US20140378617A1

公开(公告)日：2014-12-25

申请号：US14353360

申请日：2012-10-24

Applicant: RHODIA OPERATIONS

Inventor： James Wilson ,  Mathias Destarac ,  Arnaud Cadix

IPC: C08F297/02 ,  C09K8/04 ,  C09K8/588 ,  C09K8/88

CPC classification number: C08F297/026 ,  C08F2/38 ,  C08F293/005 ,  C08F2438/03 ,  C09K8/04 ,  C09K8/588 ,  C09K8/882

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）。