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    1.
    发明专利
    未知

    公开(公告)号：DE50308661D1

    公开(公告)日：2008-01-03

    申请号：DE50308661

    申请日：2003-07-16

    Applicant: BASF AG

    Inventor： BONN JOHANN ,  LORENZ KLAUS ,  WEHRLE JOERG ,  MATZ MANFRED

    IPC: B01D19/04 ,  D21H21/12

    Abstract: A defoaming agent and/or deaerator for aqueous foamable media based on oil-in-water dispersions. The oil phase contains at least one compound from fatty alcohols, fatty acid monoglycerides, diglycerides, and triglycerides, fatty acid ester of fatty acids and monovalent to trivalent alcohols, 3-thiaalkane-1-ole, 3-thiaoxide alkane-1-ole, 3-thiadioxide-alkane-ole, and thiaalkane esters in combination with (i) at least one polyglycerine that is obtained by esterification of at least 20 percent of polyglycerine with 12 to 36 C carboxylic acid, and (ii) at least one bisamide consisting of ethylene diamine and 10 to 36 C atom carboxylic acids, while the aqueous phase thereof contains at least one stabilizer, water, and an optional thickener, for aqueous media that tend to foam. Also disclosed are methods of controlling foam by adding the dispersions to a process, particularly during cellulose boiling, cellulose washing, grinding of paper pulp, paper production, and dispersion of pigments used for paper production.

    3.
    发明专利
    未知

    公开(公告)号：DE19903546A1

    公开(公告)日：2000-08-03

    申请号：DE19903546

    申请日：1999-01-29

    Applicant: BASF AG

    Inventor： DYLLICK-BRENZINGER RAINER ,  GUENTHER ERHARD ,  LORENCAK PRIMOZ ,  GLAS GUENTHER ,  BONN JOHANN

    IPC: B01D19/04 ,  D21H17/09 ,  D21H21/12

    Abstract: The invention relates to a defoamer and/or deareator on the basis of oil-in-water dispersions which, in the hydrophobe oil-phase, contain 3-thiaalkane-1-oles, 3-thiaoxide-alkane-1-oles, 3-thiadioxide-alkane-1-oles, esters of the compounds mentioned or the mixtures thereof as defoaming and/or deairing compounds. The invention also relates to the use of 3-thiaalkane-1-oles, 3-thiaoxide-alkane-1-oles, 3-thiadioxide-alkane-1-oles, esters of the compounds mentioned or the mixtures thereof as defoamers and/or deareators.

    6.
    发明专利
    未知

    公开(公告)号：AT221594T

    公开(公告)日：2002-08-15

    申请号：AT96937229

    申请日：1996-10-25

    Applicant: BASF AG

    Inventor： ETTL ROLAND ,  REUTHER WOLFGANG ,  LORENCAK PRIMOZ ,  BONN JOHANN

    IPC: C07C45/90 ,  C07C49/88 ,  C09K23/00 ,  D06M13/13 ,  D06M15/11 ,  D21H17/09 ,  D21H17/10 ,  D21H17/17 ,  D21H17/23 ,  D21H17/29 ,  D21H21/16 ,  D21H17/72

    Abstract: PCT No. PCT/EP96/04638 Sec. 371 Date May 4, 1998 Sec. 102(e) Date May 4, 1998 PCT Filed Oct. 25, 1996 PCT Pub. No. WO97/17491 PCT Pub. Date May 15, 1997Aqueous alkyldiketene dispersions comprising an alkyldiketene, cationic starch having an amylopectic content of at least 95% by weight and as anionic dispersants (a) from 0.05 to 1.0% by weight of ligninsulfonic acid, condensates of naphthalenesulfonic acid and formaldehyde, sulfonated polystyrene, salts and mixtures of said polymers and (b) from 0.05 to 1.5% by weight of sulfuric monoesters of alcohols having at least 10 carbon atoms, phosphoric monoesters or diesters of alcohols having at least 10 carbon atoms, sulfuric monoesters of alkoxylated alcohols having at least 10 carbon atoms, phosphoric monoesters or diesters of alkoxylated alcohols having at least 10 carbon atoms, C12-C30-alkylsulfonic acids, salts and mixtures of said compounds can be used as body size in the manufacture of paper, paperboard and cardboard and for making cellulose fibers hydrophobic.

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