21.
    发明专利
    未知

    公开(公告)号:DE10321555A1

    公开(公告)日:2004-12-02

    申请号:DE10321555

    申请日:2003-05-14

    Applicant: DEGUSSA

    Abstract: The invention relates to a transparent masterbatch for improving the surface properties of thermoplastics, said masterbatch containing from 10% to 60% by weight of polyhedral oligomeric silicon-oxygen cluster units in accordance with the formula [(RaXb,SiO1-5)m(RCXdSIO)n(ReXfSi2O2.5)o(RgXhSi2O2)p] where: a, b, c=0-1; d=1-2; e, f, g=0-3; h=1-4; m+n+o+p>=4; a+b=1; c+d=2; e+f=3 and g+h=4; R=hydrogen atom, alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl group or polymer unit, each substituted or unsubstituted, or further functionalized polyhedral oligomeric silicon-oxygen cluster units attached via a polymer unit or a bridging unit, X=oxy, hydroxy, alkoxy, carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halogen, epoxy, ester, fluoroalkyl, isocyanate, blocked isocyanate, acrylate, methacrylate, nitrile, amino, phosphine or polyether group or substituents of type R containing at least one such group of type X the substituents of type R being identical or different and the substituents of type X being identical or different and from 40% to 9011/o by weight of a thermoplastic carrier material, and to a transparent thermoplastic and to its production process.

    24.
    发明专利
    未知

    公开(公告)号:DE50112226D1

    公开(公告)日:2007-05-03

    申请号:DE50112226

    申请日:2001-03-22

    Applicant: DEGUSSA

    Abstract: The invention relates to a process for preparing phenol derivatives by catalytic oxidation of an aromatic hydrocarbon to the hydroperoxide and subsequent cleavage of the hydroperoxide to give the phenol derivative and a ketone, wherein a compound of the formula I where R1, R2=H, aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, in each case having from 1 to 20 carbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, where R1 and R2 are identical or different radicals or R1 and R2 may be joined to one another via a covalent bond, and X, Z=C, S, CH2 Y=O, OH k=0, 1, 2 l=0, 1, 2 m=1-3; is used as oxidation catalyst in the presence of a free-radical initiator, where the molar ratio of the catalyst to the aromatic hydrocarbon is less than 10 mol %.

    New stabilizer (having high molecular weight and high boiling point) useful for the production of polymer composition and as light-protective agents

    公开(公告)号:DE102004042524A1

    公开(公告)日:2006-03-09

    申请号:DE102004042524

    申请日:2004-09-02

    Applicant: DEGUSSA

    Inventor: KUEHNLE ADOLF

    Abstract: Stabilizer (I) (having a molecular weight of at least 700 g/mol and a boiling point of above 200[deg]C) for polymers, is new. erfindungsgemaRenStabilizer (I) (having a molecular weight of at least 700 g/mol and a boiling point of above 200[deg]C) of formula [(RaAbXiSiO1.5)m(RcAdXjSiO)n(ReAfXkSi2O2.5)o(RgAhXlSi2O2)p] for polymers, is new. a-d, i : 0-1; j : 1-2; e, g, k : 0-3; f, h : 0-2; R : H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, polymer unit (all are optionally substituted) or functionalized polyhedric oligomer having silicon-oxygen cluster units, which are bound over a polymer unit or a bridge unit; A : substituent with at least a reactive structure fragment, a radical, where the appropriate radical stabilizes by at least a neighbouring structure fragment (exerts a steric preventing and/or a stabilizing inductive effect on the radical); and X : oxy, OH, alkoxy, carboxy, carbonyl, amido, carbamido, sulfamido, urethane, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halo, epoxy, esters, fluoroalkyl, acrylate, methacrylate, mercapto, nitrile, amino, phosphine, polyether or R. Where a+b+i is 1; c+d+j is 2; b+d+f+h is 1-2; m+n+o+p is greater than or equal to 4; e+f+k is 3 and g+h+l is 4. Independent claims are also included for: (1) use of (I) for the production of a polymer composition (where (I) is added to a polymer or a polymer mixture); and (2) a polymer composition comprising (I).

    Aqueous polymer dispersion, useful as a coating agent, comprises at least one binding agent and at least one compound having polyhedral silicon-oxygen cluster units

    公开(公告)号:DE10331788A1

    公开(公告)日:2005-02-24

    申请号:DE10331788

    申请日:2003-07-11

    Applicant: DEGUSSA

    Abstract: An aqueous polymer dispersion comprising covalently bonded oligomeric polyhedral silicon-oxygen cluster units comprises at least one binding agent and at least one compound having polyhedral silicon-oxygen cluster units. An aqueous polymer dispersion (I) comprising covalently bonded oligomeric polyhedral silicon-oxygen cluster units comprises: (a) at least one binding agent; (b) at least one compound having polyhedral silicon-oxygen cluster units of formula (1) and; (c) processing aids and additives. [(RaXbSi)1.5)m(RcXdSiO)n(ReXfSi2O2.5)o(RgXhSi12O2)p] (1) a,b,c : 0-1; d : 1-2; e,f,g : 0-3; h : 1-4; R : H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkinyl, cycloalkinyl, aryl, heteroaryl, optionally substituted or bonded to further functionalized polyhedral oligomeric silicon-oxygen cluster units via a polymer or binding unit; X : oxy, hydroxy, alkoxy, carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halo, epoxy, ester, fluoroalkyl, isocyanate, blocked isocyanate, acrylate, methacrylate, nitrile, amino, phosphine, optionally substituted by R. m.b + n.d +o.f + p.h=4; m + n + o = p>=4; a + b = 1; c +d = 2; e + f = 3; g + h = 4; Independent claims are also included for the following: (1) a process for the production of the polymer dispersion (I) by addition of (B) to a liquid polymer (A) with chemical reaction to form at least one covalent bond between (A) and (B); and (2) coatings prepared using the aqueous dispersion (I).

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