Method for coating electrically conductive particles by grafting a polymer layer
    1.
    发明授权
    Method for coating electrically conductive particles by grafting a polymer layer 失效
    通过接枝聚合物层涂覆导电颗粒的方法

    公开(公告)号:US06375821B1

    公开(公告)日:2002-04-23

    申请号:US09529643

    申请日:2000-06-19

    IPC分类号: C25D902

    CPC分类号: C09D5/4476

    摘要: The invention concerns a method for forming a coating on conductive particles by grafting a polymer and/or a copolymer of the particles from a bath containing at least a monomer from which the polymer and/or copolymer is formed. The method consists of producing the grafting by electrochemical reduction of the monomer in an electrolytic solution, where at least a cathode and an anode are provided, and containing an aprotic solvent, a support electrolyte and the monomer(s) required for polymerizing or copolymerizing the coating, by suspending the particles and moving the solution so as to produce an intermittent contact between the particles and the cathode, and to form, by polymerization or copolymerization, the coating on the particles by applying an electric potential.

    摘要翻译: 本发明涉及一种通过从至少含有形成聚合物和/或共聚物的单体的浴接枝颗粒的聚合物和/或共聚物而在导电颗粒上形成涂层的方法。 该方法包括通过在电解液中电化学还原单体进行接枝,其中至少提供阴极和阳极,并且含有非质子溶剂,载体电解质和聚合或共聚所需的单体 通过使颗粒悬浮并移动溶液以在颗粒和阴极之间产生间歇接触,并通过施加电势而在颗粒上聚合或共聚而形成涂层。

    Method for making composites
    4.
    发明授权
    Method for making composites 有权
    制作复合材料的方法

    公开(公告)号:US06325911B1

    公开(公告)日:2001-12-04

    申请号:US09462297

    申请日:2000-04-03

    IPC分类号: C25D554

    摘要: A method for making composites uses electrochemical polymer or copolymer coating of a carbon-based support by using a reaction system including (a) at least a monomer capable of forming a polymer on said support, (b) an aprotic solvent and (c) an electrolyte providing the resulting organic medium with an electrical conductivity for conducting therein electrolysis. The carbon support permanently forms the cathode, by applying either a potential or an electric current bringing the reaction system into the passivation zone corresponding to the first inhibition peak. The method forms a polymer grafted on the support.

    摘要翻译: 一种制备复合材料的方法是使用包含(a)至少一种能够在所述载体上形成聚合物的单体的反应体系,使用电化学聚合物或共聚物涂覆碳基载体,(b)非质子溶剂和(c) 为所得有机介质提供电导率以在其中进行电解的电解质。 碳载体通过施加使反应体系进入对应于第一抑制峰的钝化区的电位或电流而永久地形成阴极。 该方法形成接枝在载体上的聚合物。

    Process for controlled radical polymerization or copolymerization of
(meth)acrylic and vinyl monomers and (co)polymers obtained
    5.
    发明授权
    Process for controlled radical polymerization or copolymerization of (meth)acrylic and vinyl monomers and (co)polymers obtained 失效
    获得的(甲基)丙烯酸和乙烯基单体和(共)聚合物的受控自由基聚合或共聚方法

    公开(公告)号:US5767210A

    公开(公告)日:1998-06-16

    申请号:US827386

    申请日:1997-03-27

    CPC分类号: C08F4/00 C08F4/80

    摘要: This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0.degree. C., in the presence of an initiation system including: at least one compound generating radicals, other than bromofluorene, and at least one catalyst consisting of a complex of palladium in the 0 oxidation state, denoted by the following formula (I): Pd(0)L.sup.1 L.sup.2 L.sup.3 L.sup.4 in which each of L.sup.1, L.sup.2, L.sup.3 and L.sup.4, which are identical or different, denotes a ligand which may be a chiral ligand, which is chosen from PRR'R", P(OR)(OR')(OR"), NRR'R", ORR', SRR', SeRR', AsRR'R", SbRR'R", where each of R, R' and R" independently denotes a C.sub.1 -C.sub.14 alkyl group, optionally substituted, or an optionally substituted aromatic group, it being possible for at least two of these ligands to be joined to one another by one or more divalent radicals.

    摘要翻译: 该方法的特征在于,在起始系统存在下,至少一种所述单体在本体,溶液,乳液或悬浮液中在可低至0℃的温度下聚合或共聚,包括 :除了溴芴之外,至少一种产生自由基的化合物和至少一种由O型氧化态的钯络合物组成的催化剂,由下式(I)表示:Pd(0)L1L2L3L4,其中L1,L2 表示可以是手性配体的配体,其选自PRR'R“,P(OR)(OR')(OR”)(OR“),NRR'R” ,ORR',SRR',SeRR',AsRR'R“,SbRR'R”,其中R,R'和R“各自独立地表示任选取代的C 1 -C 14烷基或任选取代的芳族 这些配体中的至少两个可能通过一个或多个二价基团彼此连接。

    Process for the controlled radical (CO) polymerization of (Meth) acrylic
vinyl vinylidene and diene monomers in the presence of an Rh Co OR Ir
    6.
    发明授权
    Process for the controlled radical (CO) polymerization of (Meth) acrylic vinyl vinylidene and diene monomers in the presence of an Rh Co OR Ir 失效
    (甲基)丙烯酸乙烯基亚乙烯基和二烯单体在Rh Co OR Ir存在下的受控自由基(CO)聚合方法

    公开(公告)号:US5811500A

    公开(公告)日:1998-09-22

    申请号:US884219

    申请日:1997-06-27

    CPC分类号: C08F4/00

    摘要: This process is characterized in that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature which may be as low as 0.degree. C., in the presence of an initiator system comprising at least one non-peroxy radical-generator compound and at least one catalyst consisting of a metal complex represented by formula Ma.sub.a (L).sub.n in which M represents Rh, Co or Ir; A represents, a halogen or a pseudohalogen; the groups L, which may be identical or different, each represent a ligand which may be a chiral ligand, which is chosen from cyclooctadiene, PRR'R", P(OR) (OR') (OR"), NRR'R", ORR', SRR', SeRR', AsRR'R", SbRR'R", each radical R, R' and R" independently representing an optionally substituted C.sub.1 -C.sub.14 alkyl group or an optionally substituted aromatic group, it being possible for at least two of these ligands to be joined together by one or more divalent radicals; a is an integer such that 1.ltoreq.a.ltoreq.3 ; n is an integer such that 1.ltoreq.n.ltoreq.5, and in the absence of activator.

    摘要翻译: 该方法的特征在于,至少一种所述单体在本体,溶液,乳液或悬浮液中,在可能低至0℃的温度下,在至少包含至少 一种非过氧自由基产生剂化合物和至少一种由式Ma(L)n表示的金属配合物组成的催化剂,其中M表示Rh,Co或Ir; A表示卤素或假卤素; 可以相同或不同的基团L各自表示可以是手性配体的配体,其选自环辛二烯,PRR'R“,P(OR)(OR')(OR”),NRR' R“,ORR',SRR',SeRR',AsRR'R”,SbRR'R“,每个基团R,R'和R”独立地表示任选取代的C 1 -C 14烷基或任选取代的芳族 这些配体中的至少两个可能通过一个或多个二价基团连接在一起; a是整数,使得1

    Aliphatic polyesters and/or copolyesters and a process for the
production thereof
    8.
    发明授权
    Aliphatic polyesters and/or copolyesters and a process for the production thereof 有权
    脂族聚酯和/或共聚酯及其制备方法

    公开(公告)号:US6166169A

    公开(公告)日:2000-12-26

    申请号:US232144

    申请日:1999-01-15

    摘要: An aliphatic polyester and/or copolyester, obtained from a polyreaction of at least one monomer from the group comprising lactides, lactones, cyclic carbonates and cyclic anhydrides. To be able to prepare the aliphatic polyester and/or copolyester a reaction mixture is used which contains at least one catalyst of the general formula (M) (X.sub.1, X.sub.2 . . . X), M being a metal selected from the group 3 to 12 of the periodic system (X.sub.1, X.sub.2 . . . X.sub.m) being a substituent selected from one of the families of alkyls, aryls, oxides, carboxylates, halogenides, alkoxides and compounds with elements from group 15 and/or 16 of the periodic system, m being an integer in the range of from 1 to 6, and n being an integer in the range of from 0 to 6, and which also contains a co-catalyst of the general formula (Y) (R.sub.1, R.sub.2 . . . R.sub.q).sub.p, Y being an element selected from the group 15 or 16 of the periodic system. (R.sub.1, R.sub.2 . . . R.sub.q) being a substituent selected from one of the families of the alkyls, aryls, oxides, halogenides, oxyalkyls, aminoalkyls, thiolkyls, phenoxides, aminioaryls, thioaryls, and q and p corresponding to the values for m and n.

    摘要翻译: 由至少一种包含丙交酯,内酯,环状碳酸酯和环状酸酐的单体的多元反应获得的脂族聚酯和/或共聚酯。 为了能够制备脂肪族聚酯和/或共聚酯,使用含有至少一种通式(M)的催化剂(X1,X2 ... X)的反应混合物,M是选自组3 周期性系统(X1,X2 ... Xm)的12位是选自烷基,芳基,氧化物,羧酸盐,卤化物,醇盐和具有周期系统的第15和/或16族元素的化合物之一的取代基 m为1〜6的整数,n为0〜6的整数,并且还含有通式(Y)(R1,R2,...)的助催化剂。 R q)p,Y是选自周期系统的组15或16的元素。 (R1,R2 ... Rq)是选自烷基,芳基,氧化物,卤化物,烷氧基,氨基烷基,硫代烷基,苯氧基,氨基芳基,硫代芳基中的一个族的取代基,对应于m的值的q和p 和n。