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    44.
    发明专利
    未知

    公开(公告)号：DE4142131A1

    公开(公告)日：1993-06-24

    申请号：DE4142131

    申请日：1991-12-20

    Applicant: BASF AG

    Inventor： BOECKH DIETER DR ,  HARTMANN HEINRICH DR ,  KAPPES ELISABETH DR ,  OFTRING ALFRED DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  SCHWENDEMANN VOLKER DR

    IPC: C08F8/14 ,  C08G63/12 ,  C08G63/66 ,  C11D3/37

    Abstract: Described are polycondensation products obtained by condensing (a) butane-1,2,3,4-tetracarboxylic acid, optionally mixed with hydroxycarboxylic acids or other carboxylic acids, with (b) polyhydroxy compounds selected from the group comprising mono-, oligo- and polysaccharides, reduced mono- and oligosaccharides and their amino derivatives, oxidized mono-, oligo- and polysaccharides, alkyl polyglycosides, polyvinyl alcohols and oligoglycerins with more than 2 glycerin units, or mixtures thereof, plus, optionally, (c) up to 20 mole %, relative to component a, of alkylene glycols, polyalkylene glycols or monohydric C4-C20 alcohols, in the ratio, by weight, of a:b from 50:1 to 0.5:1, the condensation products produced having a K-value of 8 to 100 (determined by the H. Fikent method in a 2 % by wt. aqueous solution at 25 DEG C and pH 7 on the Na salts of the condensation products). The invention also concerns the use of the polycondensation products as additives to low-phosphate or phosphate-free washing or cleaning agents in amounts ranging from 0.1 to 30 % by wt. relative to the agent.

    Prepn. of polyglycerol ether carboxylate cpds. - for use as phosphate-free additives in washing and cleaning compsn.
    46.
    发明专利
    Prepn. of polyglycerol ether carboxylate cpds. - for use as phosphate-free additives in washing and cleaning compsn. 未知

    公开(公告)号：DE4014202A1

    公开(公告)日：1991-11-07

    申请号：DE4014202

    申请日：1990-05-03

    Applicant: BASF AG

    Inventor： OFTRING ALFRED DR ,  KAPPES ELISABETH DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR

    IPC: C07C59/305 ,  C08G65/48 ,  C11D3/37

    Abstract: New polyglycerol ether carboxylates of formula shown are claimed. R = of formula (I) or (II), and up to 80% of the R gps. = H; X = H, alkali metal, NH4 and/or substd. NH4; and n = 1-10. (I) are prepd. by etherifying 20-100% of the OH gps. of cpds. of formula (III) by reaction with maleic and/or itaconic acid or anhydride, in aq. medium in presence of at least 30 mols% of alkaline earth metal ions, w.r.t. the dicarboxylic acid or anhydride, at pH 9-13 and 50-150 deg C. USE/ADVANTAGE - (I) are additives in phosphate-free or low-phosphate washing and cleaning compsns., in amt. of 0.1-20 wt.% (claimed). They can also be added to the last rinse, to give a soil-release effect. (I) have a synergistic effect with other components of washing compsns., inhibiting greying and reinforcing the action of other components. They are esp. useful in removing particulate dirt e.g. clay and are biodegradable.

    Process for the preparation of aqueous solutions of alkali metal salts or of the ammonium salt of propyne-3-sulphonic acid
    48.
    发明专利
    Process for the preparation of aqueous solutions of alkali metal salts or of the ammonium salt of propyne-3-sulphonic acid 未知

    公开(公告)号：DE3830696A1

    公开(公告)日：1990-03-29

    申请号：DE3830696

    申请日：1988-09-09

    Applicant: BASF AG

    Inventor： DUNG BERNHARD DR ,  HOUBEN JOCHEN DR ,  OFTRING ALFRED DR

    IPC: C07C303/32 ,  C07C309/20

    Abstract: Preparation of aqueous solutions of alkali metal salts or of the ammonium salt of propyne-3-sulphonic acid by reaction of propargyl chloride with an aqueous solution of an alkali metal or ammonium sulphite, hydrogen sulphite and/or disulphite by carrying out the reaction in the presence of 1 to 100% by weight, relative to the amount of the aqueous phase, of one or more organic liquids which are water-immiscible or virtually water-immiscible, insensitive to hydrolysis and inert to propargyl chloride and the alkali metal or ammonium salts of sulphurous acid or their condensation products, or adding the organic liquid after the reaction and subsequently separating off the organic phase from the aqueous phase.

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