中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

12 records (took 0.019 seconds)

    METHOD FOR THE CONTROLLED POLYMERIZATION OF FLUOROMONOMERS
    1.
    发明申请
    METHOD FOR THE CONTROLLED POLYMERIZATION OF FLUOROMONOMERS 审中-公开
    氟化物的控制聚合方法

    公开(公告)号：WO2015173193A1

    公开(公告)日：2015-11-19

    申请号：PCT/EP2015/060375

    申请日：2015-05-11

    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

    Inventor： DOSSI, Marco ,  COMINO, Giovanni ,  PONTA, Laura

    IPC: C08F14/18 ,  C08F214/22 ,  C08F2/38

    CPC classification number: C08F214/22 ,  C08F2/22 ,  C08F2/38 ,  C08F14/22 ,  C08F14/26 ,  C08F214/222 ,  C08F214/225 ,  C08F214/262 ,  C08F214/265 ,  C08L27/16 ,  C08L2201/52

    Abstract: The invention pertains to a method for emulsion polymerization of at least one fluoromonomer, said method comprising: (i) providing at least one aqueous emulsion comprising at least one surfactant and a monomer mixture [mixture (M)] comprising at least one fluoromonomer [monomer (F)] and optionally at least one additional monomer, and at least one RAFT/MADIX agent; (ii) initiating the polymerization of said monomer mixture in said aqueous emulsion adding at least one radical initiator; (iii) continuing the polymerization by adding additional amounts of said mixture (M) and said RAFT/MADIX agent, until converting the targeted amount of said mixture (M), and (iv) terminating the polymerization and recovering a latex of fluoropolymer [polymer (F)]; wherein the amount of RAFT/MADIX agent is comprised between 0.1 and 0.5 % moles, with respect to the total amount of converted monomers of said monomer mixture, and wherein the amount of said RAFT/MADIX agent present in the aqueous emulsion when initiating the polymerization in step (ii) is of at most 50% with respect to the total amount of said RAFT/MADIX agent.

    Abstract translation: 本发明涉及一种用于至少一种含氟单体的乳液聚合的方法，所述方法包括：（i）提供至少一种包含至少一种表面活性剂的水性乳液和包含至少一种含氟单体[单体（M））的单体混合物 （F）]和任选的至少一种另外的单体和至少一种RAFT / MADIX试剂; （ii）引发所述单体混合物在所述水性乳液中的聚合，加入至少一种自由基引发剂; （iii）通过加入额外量的所述混合物（M）和所述RAFT / MADIX试剂继续聚合，直到转化目标量的所述混合物（M），和（iv）终止聚合并回收含氟聚合物[聚合物 （F）]; 其中RAFT / MADIX试剂的量相对于所述单体混合物的转化单体的总量为0.1至0.5摩尔％，并且其中当引发聚合时所述RAFT / MADIX试剂存在于水乳液中的量 在步骤（ii）中相对于所述RAFT / MADIX试剂的总量为至多50％。

    FLUOROELASTOMERS
    3.
    发明申请
    FLUOROELASTOMERS 审中-公开
    氟

    公开(公告)号：WO2015173194A1

    公开(公告)日：2015-11-19

    申请号：PCT/EP2015/060376

    申请日：2015-05-11

    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

    Inventor： BOSSOLO, Stefano ,  DOSSI, Marco ,  COMINO, Giovanni

    IPC: C08L27/06 ,  C08F14/18

    CPC classification number: C08F14/18 ,  C08F2438/03

    Abstract: The invention pertains to a (per)fluoroelastomer comprising at least one group of formula (l x ), wherein X is phosphorous or carbon, preferably carbon, and Z is a hydrocarbon group, possibly comprising one or more than one heteroatoms [fluoroelastomer (A)], to a method for its manufacture, to a curable composition comprising the same, and to cured articles therefrom.

    Abstract translation: 本发明涉及包含至少一种式（1x）基团的（全）含氟弹性体，其中X是磷或碳，优选碳，Z是烃基，可能包含一个或多于一个杂原子[含氟弹性体（A） ]，其制造方法，包含其的可固化组合物及其固化制品。

    METHOD OF MANUFACTURING FLUOROELASTOMERS
    8.
    发明申请
    METHOD OF MANUFACTURING FLUOROELASTOMERS 审中-公开
    制造氟橡胶的方法

    公开(公告)号：WO2017102820A1

    公开(公告)日：2017-06-22

    申请号：PCT/EP2016/080956

    申请日：2016-12-14

    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

    Inventor： DOSSI, Marco ,  AVATANEO, Marco

    IPC: C08F214/26

    CPC classification number: C08F214/262

    Abstract: The invention pertains to a method for manufacturing a (per)fluoroelastomer [fluoroelastomer (A)] comprising the following steps: step (a): polymerizing in an aqueous emulsion in the presence of a surfactant by feeding in a first reactor comprising feeding the following ingredients: (i) a monomer mixture [mixture (M1)] comprising at least one fluoromonomer [monomer (F)], (ii) at least one iodinated and/or brominated chain-transfer agent(s), (iii) at least one branching agent possessing at least two ethylenic unsaturations; and (iv) at least one radical initiator, so as to obtain a pre-polymer latex [latex (P)]; step (b): recovering the said latex (P) from the said first reactor and storing the same in a storage tank; and step (c): feeding the said latex (P) from the said storage tank to a second reactor; step (d): polymerizing in the said second reactor at least a second monomer mixture [mixture (M2)] comprising at least one monomer (F) in the presence of a radical initiator, so as to obtain a final latex [latex (F)]; and step (d): recovering the (per)fluoroelastomer from the said latex (F).

    Abstract translation: 本发明涉及制造（全）氟弹性体[含氟弹性体（A）]的方法，其包括以下步骤：步骤（a）：在表面活性剂存在下通过进料 （i）包含至少一种含氟单体[单体（F）]的单体混合物[混合物（M1）]，（ii）至少一种碘化和/或溴化链转移剂（ （iii）至少一种具有至少两个烯属不饱和度的支化剂; 和（iv）至少一种自由基引发剂，以获得预聚物胶乳[胶乳（P）]; 步骤（b）：从所述第一反应器回收所述胶乳（P）并将其储存在储罐中; 和步骤（c）：将所述胶乳（P）从所述储罐供给到第二反应器; 步骤（d）：在所述第二反应器中在自由基引发剂存在下聚合至少一种包含至少一种单体（F）的第二单体混合物[混合物（M2）]，以获得最终胶乳[F ）]; 和步骤（d）：从所述胶乳（F）中回收（全）氟弹性体。

Patent Agency Ranking