22.
    发明专利
    未知

    公开(公告)号:DE59909944D1

    公开(公告)日:2004-08-19

    申请号:DE59909944

    申请日:1999-09-22

    Applicant: DEGUSSA

    Abstract: Mixtures of linear and cyclic amino-functional siloxane oligomers containing: (i) 3-aminopropyl, N-(2-aminoethyl)-3-aminopropyl or N'-(2-aminoethyl)-N-(2-aminoethyl)-3-aminopropyl groups; (ii) optional alkoxy groups; and (iii) (cyclo)alkyl, alkenyl or aryl groups. Mixtures of chain-type and cyclic siloxane oligomers of formula (I) and (II): R = (i) groups of formula -(CH2)3-NH2, -(CH2)3-NHR', -(CH2)3-NH-(CH2)2-NH2 or -(CH2)3-NH-(CH2)2-NH-(CH2)2-NH2, with not more than one aminopropyl-functional group of this type attached to a silicon atom, (ii) methoxy, ethoxy, 2-methoxyethoxy and/or propoxy groups, with a silicon/alkoxy group mol ratio of at least 0.5 and optionally (iii) 1-18C alkyl, alkenyl, iso-alkyl or cycloalkyl, or 6-12C aryl; R' = linear, branched or cyclic 1-18C alkyl, or 6-12C aryl; m = more than 2 and less than 30; n = 3-30 An Independent claim is also included for a process for the production of these mixtures from mixtures of: (A) aminopropyl-functional trialkoxy- or methyldialkoxy-silanes; optionally (B) 1-18C alkyl-, alkenyl-, isoalkyl- or cycloalkyl-trialkoxysilanes and/or phenyl-trialkoxysilanes and/or corresponding methyldialkoxy silanes; and optionally (C) a tetra-alkoxysilane, by hydrolysis and condensation (in succession or as a mixture) at 10-95 degrees C with 0.6-1.2 mols water per 1 mol silicon and 0.1-5 times the weight of methanol or ethanol (based on alkoxysilanes), followed by distillation of alcohol at up to 120 degrees C under normal or reduced pressure.

    24.
    发明专利
    未知

    公开(公告)号:DE59509258D1

    公开(公告)日:2001-06-21

    申请号:DE59509258

    申请日:1995-09-01

    Applicant: DEGUSSA

    Abstract: Prepn of 3-(pseudo)haloalkyl-silane esters of formula (I) comprises catalysed reaction of unsatd aliphatic cpds contg a reactive allyl (pseudo)halide gp and terminal double bond, of formula (II), with a hydridosilane ester of formula (III) in the presence of gp. VIII element and/or cpd. The novel features are that (a) a 0.1-0.0001 N soln or suspension of Ir and/or Ir cpds is prepd by stirring for at least 20 min with (II) alone or a mixt of (II) and (III) contg an excess of 0.01-100, pref 0.1-10 mole% (II) and opt in 5-95 wt% soln in inert solvents, eg hydrocarbons and/or (I); and (b) hydrosilylation is carried out with this at a catalyst concn of 10 - 10 mole%. R = 1-18C (halo)alkyl or (halo)cycloalkyl; R = R or H; R , R = R, H, aryl or halogen; R = 1-10C alkyl, opt contg aliphatic ether gps; X = F, Cl, Br, I, CN, NCO, NCS or N3; n = 0, 1 or 2.

    26.
    发明专利
    未知

    公开(公告)号:DE59701107D1

    公开(公告)日:2000-03-16

    申请号:DE59701107

    申请日:1997-10-11

    Applicant: DEGUSSA

    Abstract: Alcohol-based, fluoroalkyl-functional organosiloxane-containing compositions are obtained by hydrolysis of fluoroalkyl- organosilanes of formula R -Y-(CH2)2SiHx(R )y(OR)3-x-y (I), where R, R = linear, branched or cyclic 1-8C alkyl, or aryl; R = mono-, oligo- or per- fluorinated 1-9C alkyl or aryl; Y = CH2, O or S; x, y = 0, 1 or 2; and x+y = not more than 2. The reaction is carried out for 0.5-24 hours at 0-120 degrees C with good stirring in an alcoholic medium containing water together with a weak mono- or poly-basic acid and/or a weak base or an acid or basic salt, with a molar ratio of water:(I) = (2-500):1. Also claimed is the above process for the production of these compositions.

Patent Agency Ranking