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    14.
    发明专利
    未知

    公开(公告)号：DE10211292A1

    公开(公告)日：2003-09-25

    申请号：DE10211292

    申请日：2002-03-14

    Applicant: BASF AG

    Inventor： MISSKE ANDREA ,  SCHNEIDER REINHARD

    IPC: C01F11/18 ,  C09C1/02 ,  C07C309/03 ,  C07C313/04

    Abstract: Calcium carbonate with high brightness is prepared by treating calcium carbonate and/or the milk of lime used for its preparation by reacting milk of lime with carbon dioxide and/or at least one of the calcium-containing preliminary products used for the preparation of the milk of lime before, during and/or after this reaction with a bleaching agent which comprises at least one compound of the formula (I): A[(CR 1 R 2 )SO p M (1/q) ] r (I) where the variables have the following meanings: A is NR 3 R 4 , NR 3 , N or OH; R 1 , R 2 , R 3 , R 4 independently of one another, are hydrogen or an organic radical; M is ammonium or metal p is 2 or 3; q is the valency of M; and r is 1 when A = OH or NR 3 R 4 , is 2 when A = NR 3 and is 3 when A = N; and where variables, if a mixture of compounds is used and/or r=2 or 3, are chosen independently of one another for each individual compound and/or for each [(CR 1 R 2 )SO p M (1/q) ] group.

    15.
    发明专利
    未知

    公开(公告)号：DE19942776A1

    公开(公告)日：2001-03-15

    申请号：DE19942776

    申请日：1999-09-08

    Applicant: BASF AG

    Inventor： HEIBEL CLAUDIA ,  SCHNEIDER REINHARD ,  BECKMANN EBERHARD

    IPC: C08F6/00 ,  C08F6/10

    Abstract: The invention relates to a method for reducing the quantity of residual monomers in aqueous polymerisate dispersions by post-treating them with a redox initiator system.

    16.
    发明专利
    未知

    公开(公告)号：DE19940068A1

    公开(公告)日：2001-03-01

    申请号：DE19940068

    申请日：1999-08-24

    Applicant: BASF AG

    Inventor： SCHNEIDER REINHARD ,  MAIER PETER ,  BECKMANN EBERHARD ,  KARL ULRICH

    IPC: C11D3/42 ,  D06P1/22 ,  D06P1/62 ,  D06P5/12 ,  D06P5/13 ,  D06P5/15 ,  D06L3/10

    Abstract: Controlled partial de-coloring of textiles (especially denim) dyed or printed with vat or sulfur dyes comprises treatment with one or more aminoalkane sulfinates at pH 4-7, optionally followed by post-treatment with H2O2. Controlled partial de-coloring of textiles (especially denim) dyed or printed with vat or sulfur dyes comprises treatment with one or more aminoalkane sulfinates of formula R 3-zN(CR R -SO2M)z (I) at pH 4-7, optionally followed by post-treatment with H2O2. z = 1, 2 or 3; R = (a) H, 1-8C alkyl or HOCH2CH2- when z = 1 or 2; (b) as per (a) but also OH when z = 2; or (c) when z = 1 either both are as per (a) or one is as per (a) and the other as per (b); R and R = H or 1-4C alkyl with the total C atoms not more than 4; and M = equivalent of a mono- or di-valent metal.

    17.
    发明专利
    未知

    公开(公告)号：DE59504442D1

    公开(公告)日：1999-01-14

    申请号：DE59504442

    申请日：1995-09-23

    Applicant: BASF AG

    Inventor： RUEBENACKER MARTIN ,  SCHNEIDER REINHARD ,  NIEBERLE JUERGEN ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KISTENMACHER AXEL

    IPC: C08F2/32 ,  C08F6/18 ,  C08F6/22 ,  C08F220/04

    Abstract: Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers containing ammonium carboxylate groups are prepared by azeotropic removal of water from water-in-oil emulsions of the water-soluble or water-swellable polymers which contain ammonium carboxylate groups in the presence of from 0:1 to 40% by weight, based on the polymers, of polyalkylene glycols which have an agglomerating effect and which are obtainable by an addition reaction of C2-C4-alkylene-oxides with alcohols, phenols, amines or carboxylic acids and contain at least two polymerized alkylene oxide units and additionally of from 0.1 to 20% by weight, based on the polymers, of protective colloids which are obtainable by free radical copolymerization of C8-C40-monoolefins with monoethylenically unsaturated C4-C6-dicarboxylic anhydrides by a mass polymerization method at from 80 to 300° C. to give copolymers having molecular weights of from 500 to 20,000 g/mol, and said agglomerated polymer particles are used as thickeners for textile pigment print pastes.

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