中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.018 seconds)

    Sequenced polymers for monitoring the filtrate
    13.
    发明授权
    Sequenced polymers for monitoring the filtrate 有权

    公开(公告)号：US10774258B2

    公开(公告)日：2020-09-15

    申请号：US15564801

    申请日：2016-04-06

    Applicant: RHODIA OPERATIONS

    Inventor： Arnaud Cadix ,  David James Wilson

    IPC: C09K8/76 ,  C09K8/46 ,  C08F261/04 ,  C08F291/00 ,  C08F293/00 ,  C08B37/00

    Abstract: The invention relates to a method for preparing a sequenced copolymer comprising a first block (A) connected to a second block (B), said method comprising the following steps of monitored radical polymerisation: (E1) bringing into contact, typically in an aqueous medium: unsaturated ethylene monomers mA, selected in order to constitute the block (A); a source of free radicals; and an agent for monitoring the radical polymerisation; and then (E2) bringing into contact: the polymer obtained from step (E1); unsaturated ethylene monomers mB; a source of free radicals; and a polymer P0 which is not ethylenically unsaturated and supports labile hydrogens.

    Controlled radical polymerization in water-in-water dispersion
    14.
    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

    Applicant: RHODIA OPERATIONS

    Inventor： Mathias Destarac ,  David James Wilson ,  Silvia Stoilova

    IPC: C08F220/56

    CPC classification number: C08F220/56 ,  C08F2/10 ,  C08F2/38 ,  C08F293/005 ,  C08F2400/02 ,  C08F2438/03 ,  C09D153/00 ,  C09J153/00

    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。

    POLYMER DISPERSIONS SUITABLE FOR FABRIC CONDITIONING TREATMENT
    17.
    发明申请
    POLYMER DISPERSIONS SUITABLE FOR FABRIC CONDITIONING TREATMENT 有权

    公开(公告)号：US20220372176A1

    公开(公告)日：2022-11-24

    申请号：US17766059

    申请日：2020-09-23

    Applicant: RHODIA OPERATIONS

    Inventor： David James Wilson ,  Pierre-Emmanuel Dufils ,  Jean-Christophe Castaing

    IPC: C08F2/16 ,  C11D3/00 ,  C11D3/37 ,  C08L53/00 ,  C09K23/16

    Abstract: The present invention relates to a process for preparing a dispersion (D°), comprising: (E1) a polymerization performed M in an aqueous medium in the presence of: ° at least a pre-polymer (pO) of formula (R11)X—Z11—C(═S)—Z12-[A]-R12, which is soluble in the aqueous medium ° at least one free-radical polymerization initiator; and ° at least one ethylenically unsaturated hydrophobic monomer (m) with a ratio m/pO of the mass of the monomers (m) to the quantity of pre-polymer (pO) preferably below 10 000 g/mol whereby a dispersion of copolymers is obtained, including polymers with a living character; (E2) a conversion of the terminal groups of the copolymers that deprive the copolymers of their living character. The invention also relates to the use of dispersion (D°) for forming dispersions of hydrophobic polymers (Dp), suitable e.g. in fabric conditioning compositions.

    Controlled radical polymerization in water-in-water dispersion
    20.
    发明授权
    Controlled radical polymerization in water-in-water dispersion 有权

    公开(公告)号：US11168165B2

    公开(公告)日：2021-11-09

    申请号：US16191698

    申请日：2018-11-15

    Applicant: RHODIA OPERATIONS

    Inventor： Mathias Destarac ,  David James Wilson ,  Silvia Stoilova

    IPC: C08F2/28 ,  C08F220/56 ,  C08F293/00 ,  C09D153/00 ,  C09J153/00 ,  C08F2/10 ,  C08F2/38

    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.

Patent Agency Ranking