DESESPUMANTE Y/O DESAIREADOR A BASE DE DISPERSIONES DE ACEITE-EN-AGUA.

    公开(公告)号:ES2250716T3

    公开(公告)日:2006-04-16

    申请号:ES02776518

    申请日:2002-06-04

    Applicant: BASF AG

    Abstract: Dispersiones de aceite-en-agua, cuya fase oleaginosa contiene al menos una substancia inorgánica, que contenga oxígeno, sólida a temperatura ambiente, insoluble en agua, elegida entre los alcoholes de cadena larga con un resto hidrocarbonado alifático, que presenta al menos 12 átomos de carbono, que puede estar interrumpido, en caso dado, por S, SO o SO2, residuos de destilación, que se obtienen en la obtención de alcoholes alifáticos con al menos 14 átomos de carbono, monoglicéridos, diglicéridos y triglicéridos de ácidos grasos, ésteres de ácidos grasos de alcoholes alifáticos con al menos 12 átomos de carbono, ésteres de ácidos grasos de alcanoles con 1 a 11 átomos de carbono y sus mezclas.

    12.
    发明专利
    未知

    公开(公告)号:BR0312832A

    公开(公告)日:2005-04-26

    申请号:BR0312832

    申请日:2003-07-16

    Applicant: BASF AG

    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.

    DEFOAMING AGENT AND/OR DEAERATOR FOR AQUEOUS MEDIA TENDING TO FOAM

    公开(公告)号:CA2493055A1

    公开(公告)日:2004-02-12

    申请号:CA2493055

    申请日:2003-07-16

    Applicant: BASF AG

    Abstract: The invention relates to a defoaming agent and/or deaerator based on oil-in- water dispersions, the oil phase of which contains at least one compound fro m the group of alcohols comprising at least 12 C atoms, alkoxylated fat alcohols, monoglycerides, diglycerides, and triglycerides of fatty acids, fatty acid ester from carboxylic acids comprising at least 12 C atoms and monovalent to trivalent alcohols comprising 3 to 22 C atoms, hydrocarbons having a boiling point of more than 200 ~C, fatty acids comprising 12 to 22 C atoms, 3-thiaalkane-1-ole, 3-thiaoxide alkane-1-ole, 3-thiadioxide-alkane-ol e, and ester of the thiaalkane compounds in combination with (i) at least one polyglycerine that is obtained by esterification of at least 20 percent of polyglycerine with a carboxylic acid comprising 12 to 36 C atoms, and (ii) a t least one bisamide consisting of ethylene diamine and carboxylic acids comprising 10 to 36 C atoms while the aqueous phase thereof contains at leas t one stabilizer, water, and an optional thickener, for aqueous media that ten d to foam. Also disclosed is the use of said defoaming agent and/or deaerator for controlling foam in media tending to foam, particularly for controlling foam during cellulose boiling, cellulose washing, grinding of paper pulp, paper production, and dispersion of pigments used for paper production.

    14.
    发明专利
    未知

    公开(公告)号:DE59609517D1

    公开(公告)日:2002-09-05

    申请号:DE59609517

    申请日:1996-10-25

    Applicant: BASF AG

    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.

    18.
    发明专利
    未知

    公开(公告)号:DE19710616A1

    公开(公告)日:1998-09-17

    申请号:DE19710616

    申请日:1997-03-14

    Applicant: BASF AG

    Abstract: The invention relates to aqueous dispersions of reactive gluing agents containing 0.1 to 10 weight per cent of water-soluble or water-dispersible polymeric protective colloids which can be obtained by reacting polymers containing amino groups from the group: polymers containing vinylamine units; polyamidoamines; polyamidoamines grafted with ethylenimine - with diketenes at a weight ratio polymers:diketenes of 10000:1 to 1:3. The invention also relates to a method for producing aqueous dispersions of reactive gluing agents by homogenising said reactive gluing agents in an aqueous solution of at least one of the aforementioned protective colloids at temperatures of 20 to 90 DEG C under the effect of shear forces, and to the use of aqueous dispersions of gluing agents thus obtained as pulp sizing agents in the production of paper, board and cardboard and for hydrophobing cellulose fibers.

    AQUEOUS ALKYLDIKETENE DISPERSIONS AND THEIR USE AS SIZE FOR PAPER

    公开(公告)号:CA2231541A1

    公开(公告)日:1997-05-15

    申请号:CA2231541

    申请日:1996-10-25

    Applicant: BASF AG

    Abstract: The invention concerns aqueous alkyldiketene dispersions containing an alkyldiketene, cationic starch with an amylopectin content of at least 95 % by wt. and the following anionic dispersants: (a) 0.05 to 1.0 % by wt. of lignin sulphonic acid, condensation products of naphtalene sulphonic acid and formaldehyde, sulphonated polystyrene or salts or mixtures of such polymers and (b) 0.05 to 1.5 % by wt. of sulphuric acid half esters of alcohols with at least 10 C-atoms, mono- or diphosphoric acid half esters of alkoxylated alcohols with at least 10 C-atoms, sulphuric acid half esters of alkoxylated alcohols with at least 10 C-atoms, mono- or diphosphoric acid esters of alkoxylated alcohols with at least 10 C-atoms, C12-C30 alkyl sulphonic acids or salts or mixtures of such compounds. The invention also concerns the use of such alkyldiketene dispersions as bulk size in the manufacture of paper, paperboard and cardboard, as well as in making cellulose fibres waterrepellent.

    20.
    发明专利
    未知

    公开(公告)号:DE19540998A1

    公开(公告)日:1997-05-07

    申请号:DE19540998

    申请日:1995-11-03

    Applicant: BASF AG

    Abstract: The invention concerns aqueous alkyldiketene dispersions containing an alkyldiketene, cationic starch with an amylopectin content of at least 95 % by wt. and the following anionic dispersants: (a) 0.05 to 1.0 % by wt. of lignin sulphonic acid, condensation products of naphtalene sulphonic acid and formaldehyde, sulphonated polystyrene or salts or mixtures of such polymers and (b) 0.05 to 1.5 % by wt. of sulphuric acid half esters of alcohols with at least 10 C-atoms, mono- or diphosphoric acid half esters of alkoxylated alcohols with at least 10 C-atoms, sulphuric acid half esters of alkoxylated alcohols with at least 10 C-atoms, mono- or diphosphoric acid esters of alkoxylated alcohols with at least 10 C-atoms, C12-C30 alkyl sulphonic acids or salts or mixtures of such compounds. The invention also concerns the use of such alkyldiketene dispersions as bulk size in the manufacture of paper, paperboard and cardboard, as well as in making cellulose fibres water-repellent.

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