PROCEDE DE PREPARATION DE CATALYSEURS METALLIQUES A BASE DE CARBENES, POUR L'HYDROSILYLATION DE COMPOSES INSATURES ET CATALYSEURS DE CE TYPE
    7.
    发明公开
    PROCEDE DE PREPARATION DE CATALYSEURS METALLIQUES A BASE DE CARBENES, POUR L'HYDROSILYLATION DE COMPOSES INSATURES ET CATALYSEURS DE CE TYPE 有权
    用于生产催化剂基于用于氢化硅烷化的不饱和化合物METALLIC卡宾与如此获得的催化剂

    公开(公告)号:EP1392708A1

    公开(公告)日:2004-03-03

    申请号:EP02743347.3

    申请日:2002-06-04

    申请人: Rhodia Chimie

    IPC分类号: C07F15/00 C07F7/18 C07F7/14

    摘要: The invention concerns an improved method for preparing catalysts for hydrosilylation reactions of compounds with ethylene or acetylene unsaturation (for example olefins or acetylene derivatives), in particular but not exclusively those involving polyorganosiloxanes (POS) bearing Si-H units and POS bearing Si-(ethylene or acetylene unsaturation) units. Said preparation corresponds to the following synthesis (I), wherein: A = B = carbon; T1, T2 = cyclohexyl, t-butyl or methyl; T3, T4 = H; DVTMS = divinyltetramethylsiloxane; t-BuOK = potassium tert-butylate; T.A = room temperature. The invention is characterised in that it consists in carrying out said synthesis in a single step by bringing together salt (III) above, Karstedt (IV) in the presence of a solvent (V) (THF) and a base (VI) (t-BuOK) at room temperature.

    COMPOSES ORGANOSILICIQUES ET PROCEDE DE PREPARATION ASSOCIE
    8.
    发明公开
    COMPOSES ORGANOSILICIQUES ET PROCEDE DE PREPARATION ASSOCIE 审中-公开
    有机硅化合物和会议常规方法有关

    公开(公告)号:EP1888602A2

    公开(公告)日:2008-02-20

    申请号:EP06755495.6

    申请日:2006-05-17

    申请人: RHODIA CHIMIE

    IPC分类号: C07F7/18

    CPC分类号: C07F7/1804 C07F7/0838

    摘要: The invention concerns synthesis of functionalized organosilicium compounds comprising at least one activated azo group of formula (I): [(G0)3SiO1/2]m [(G0)2SiO2/2]n [G0SiO3/2]o [SiO4/2]p [(G2)a(G1)a'(Z-CO-HN=NH-CO-A)SiO(3-a-a')/2 ]. Said compounds can for example be a mixture of silane species of formula (ia): (C2H5O)3Si-(CH2)3-NH-CO-N=N-COOC2H3; with siloxane species of formulae: (2i.1a): [(CH3)3SiO1/2] [(C2H5O)2 {(CH2)3-NH-CO-N=N-COOC2H5} SiO1/2] et (2i.2a): [(CH3)3SiO1/2]2 [(C2H5O) {(CH2)3-NH-CO-N=N-COOC2H5} SiO2/2]. The invention also concerns the method for preparing said compounds (I), which consists in using at least one hydrazino precursor (II) (-HN-NH-) of compound (I), oxidizing the precursor (II) into an azo group for the compound (I) using at least one oxidizing agent (Ox) and at least one vase (B), said method consisting in selecting the base B among mineral bases and Ox among halogens, cyanurated compounds and chlorinated compounds and mixtures thereof, and in using a supplementary reagent selected among silanes (alone or mixed together) of formula (III): (G°)4-p1Si (G2')p1 [or example, (CH3)3(C2H5O)Si].

    UTILISATION D'UNE COMBINAISON PARTICULIERE D'UN AGENT DE COUPLAGE ET D'UN AGENT DE RECOUVREMENT COMME SYSTEME DE COUPLAGE (CHARGE BLANCHE - ELASTOMERE) DANS LES COMPOSITIONS DE CAOUTCHOUC COMPRENANT UNE CHARGE INORGANIQUE
    9.
    发明公开
    UTILISATION D'UNE COMBINAISON PARTICULIERE D'UN AGENT DE COUPLAGE ET D'UN AGENT DE RECOUVREMENT COMME SYSTEME DE COUPLAGE (CHARGE BLANCHE - ELASTOMERE) DANS LES COMPOSITIONS DE CAOUTCHOUC COMPRENANT UNE CHARGE INORGANIQUE 有权
    甲粘合剂和涂层的特殊组合装置的使用AS公民教育SYSTEM(白色填料/弹性体)在橡胶组合物含无机填料的

    公开(公告)号:EP1885789A2

    公开(公告)日:2008-02-13

    申请号:EP06755515.1

    申请日:2006-05-19

    申请人: RHODIA CHIMIE

    IPC分类号: C08K5/548 C07F7/18

    摘要: The invention relates to the use of an effective amount of a coupling system (A) as an inorganic filler/elastomer coupling agent in rubber compositions comprising: (B) at least one natural or synthetic rubber elastomer, (C) an inorganic filler as reinforcing filler, (D) all or part of the other constituents or additives normally used particularly comprising (a) vulcanisation agent(s) the use being characterised in that: the coupling system (A) is a particular mixture of the following combination of ingredients (A1) and (A2): (A1) is at least one coupling agent selected from the following functionalised organosilicon compounds of formula (I): [(G0)3SiO1/2]m [(G0)2SiO2/2]n [G0SiO3/2]o [SiO4/2]p [(G2)a(G1)a'(Z-CO-N=N-CO-A)SiO(3-a-a')/2]g where the symbols Z, A, G0, G1, G2, a, a', m, n, o, p and q have the definitions given in claim 1, (A2) is at least one coating agent for the reinforcing filler comprising one compound with the single function Y in the structure thereof which is capable of bonding physically and chemically to inorganic filler and whereby, as a result of an increase in dispersion of the charge within the rubber matrix and a reduction in viscosity of the compositions, the use of raw compositions is made easier. Said coupling system (A) is incorporated in rubber compositors mad from isoprene elastomers.

    COMPOSITION SILICONE RETICULABLE PAR DESHYDROGENOCONDENSATION EN PRESENCE D UN CATALYSEUR METALLIQUE
    10.
    发明公开
    COMPOSITION SILICONE RETICULABLE PAR DESHYDROGENOCONDENSATION EN PRESENCE D UN CATALYSEUR METALLIQUE 有权
    BY脱水缩合在金属催化剂固化的有机硅组合物的存在

    公开(公告)号:EP1639030A2

    公开(公告)日:2006-03-29

    申请号:EP04767464.3

    申请日:2004-06-25

    申请人: RHODIA CHIMIE

    摘要: The invention relates to a silicon composition which can be crosslinked by means of dehydrogenative condensation between reactive units =SiH and =SiOH, using a catalytic complex of iridium. The aforementioned catalytic complex of iridium can be obtained by reacting: (i) a complex of iridium having formula (I): (IrΣΣ'2)n, wherein: A/ n is 1 or 2 and, if n is 1, S is a radical ligand LX with 3 electrons, but, if n is 2, S is a radical ligand X with 1 electron which acts like 3-electron ligand LX with the two iridium atoms; and B/ S', which may be identical or different, but are preferably identical, each represent a ligand L with 2 electrons; and (ii) a ligand Sd which is selected from R2S, R2O, NR3, carbenes and organophosphorous ligands.