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    11.
    发明专利
    未知

    公开(公告)号：DE3484748D1

    公开(公告)日：1991-08-01

    申请号：DE3484748

    申请日：1984-12-18

    Applicant: BASF AG

    Inventor： BERGOLD WOLFRAM DR ,  MELZER JAROSLAV

    IPC: B01D19/04

    Abstract: In antifoams based on oil-in-water emulsions, the oil phase of the emulsion contains (a) C12-C26-alcohols, distillation residues obtained in the preparation of alcohols by an oxosynthesis or by the Ziegler process and/or (b) fatty acid esters of C12-C22-carboxylic acids with monohydric, dihydric or trihydric C1-C18-alcohols, with or without (c) a hydrocarbon having a boiling point above 200 DEG C. or fatty acids of 12 to 22 carbon atoms, constitutes from 15 to 60% by weight of the emulsion and has a mean droplet size of from 0.5 to 15 mu m. The emulsions are stabilized by the addition of from 0.05 to 0.5% by weight, based on the total emulsion, of a high molecular weight water-soluble homopolymer or copolymer of acrylic acid, methacrylic acid, acrylamide or methacrylamide.

    14.
    发明专利
    未知

    公开(公告)号：DE3800629A1

    公开(公告)日：1989-07-20

    申请号：DE3800629

    申请日：1988-01-12

    Applicant: BASF AG

    Inventor： BAY HERBERT DR ,  ECKERT GUENTER DR ,  BERGOLD WOLFRAM DR

    IPC: C14C9/00 ,  D06N3/00

    Abstract: The invention relates to a method for waterproofing leather, furs and synthetic leathers with a carboxyl-containing polysiloxane whose carboxyl groups are present in neutralised form in aqueous phase in the absence of emulsifiers and without aftertreatment with mineral tannins.

    15.
    发明专利
    未知

    公开(公告)号：DE3744593A1

    公开(公告)日：1989-07-13

    申请号：DE3744593

    申请日：1987-12-31

    Applicant: BASF AG

    Inventor： CLERCQ ARNOLD DE DR ,  BERGOLD WOLFRAM DR ,  DEGEN HANS-JUERGEN DR ,  MELZER JAROSLAV

    IPC: B01D19/04

    Abstract: Defoamers in which the oil phase of the emulsions contains… (a) a C12- to C26-alcohol, distillation residues obtainable during the production of alcohols with a relatively high carbon number by oxo synthesis or by the Ziegler process and which may also be alkoxylated, and/or… (b) a fatty acid ester of C12- to C22- carboxylic acids with a mono- to tri-hydric C1- to C18-alcohol and optionally… (c) a hydrocarbon having a boiling point above 200 DEG C or fatty acids having 12 to 22 carbon atoms,… comprises 5 to 50% by weight of the make-up of the emulsion and has a mean particle size of less than 25 mu m, and in which 5 to 50 % by weight of the components (a) and (b) of the oil phase are replaced by… (d) at least one compound melting at a temperature above 70 DEG C selected from the group of fatty alcohols having at least 28 C atoms, the esters of a C1- to C22-carboxylic acid with an alcohol having at least 28 C atoms, the polyethylene waxes having a molecular weight of at least 2000, the carnauba waxes, the montanic ester waxes and the montanic acid waxes and their salts.

    19.
    发明专利
    未知

    公开(公告)号：DE2137941A1

    公开(公告)日：1973-02-08

    申请号：DE2137941

    申请日：1971-07-29

    Applicant: BASF AG

    Inventor： DACHS KARL DR ,  BERGOLD WOLFRAM DR ,  FAULHABER GERHARD DR ,  SCHWINDT WOLFGANG DR

    IPC: C08L83/04 ,  C09K23/00 ,  D06M13/507 ,  D06M13/513 ,  D06M15/643 ,  C08G47/02

    Abstract: 1389862 Emulsions of silicon compounds BADISCHE ANILIN-& SODA-FABRIK AG 28 July 1972 [29 July 1971] 35329/72 Heading B1V [Also in Divisions C3 and Dl] Stable aqueous emulsions of organic silicon compounds are prepared by mechanically emulsifying a mixture of 2-70 wt% of an organic silicon compound with 98-30 wt% of water, in the presence of 0.1-2 wt% (based on the mixture) of a copolymer derived from 5-50 mole% of maleic anhydride, 50-95 mole % of a non-saponifiable monomer and optionally 0.5-7 mol% of a polyamine, and optionally adjusting the pH to at least 7.5. There may also be present conventional emulsifying agents, e.g. polyoxyalkylated alkylphenols and a hydrocarbon solvent for the copolymer. In Examples a trimethylsilyl-terminated polydimethylsiloxane of 5000 cS/25‹C or tetrastearyl or tetraoleyl silicate is emulsified with water in the presence of copolymers of maleic anhydride and vinyl isobutyl ether, in 50:50, 30:88 and 25:71 molar ratio, neutralized with 0, 2 or 5 molar % of hexamethylene diamine, the emulsion also optionally containing a polyoxyethylated castor oil or nonylphenol or a methylated trimethylolmelamine, and being adjusted in pH with aqueous ammonia or triethanolamine.

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