38.
    发明专利
    未知

    公开(公告)号:DK139437B

    公开(公告)日:1979-02-19

    申请号:DK470572

    申请日:1972-09-22

    Applicant: HOECHST AG

    Abstract: Water-soluble salts of acid carboxylic acid esters of bivalent aliphatic or olefinically unsaturated carboxylic acids or hydroxycarboxylic acids and at least trihydric aliphatic alcohols are used as builders for detergent and cleansing agents. Each hydroxylic group of the alcohol or optionally of the carboxylic acid has a carboxylic acid-molecule attached thereto.

    40.
    发明专利
    未知

    公开(公告)号:DK135543C

    公开(公告)日:1977-10-24

    申请号:DK510470

    申请日:1970-10-07

    Applicant: HOECHST AG

    Abstract: 1284815 Vinyl alcohol/maleic acid copolymer salt compositions KNAPSACK AG 16 Sept 1970 [8 Oct 1969] 44267/70 Heading C3P [Also in Division C5] Detergent and cleaning agents based on anionactive and/or non-ionic tensides and optionally further addends, the agents containing watersoluble salts of copolymers of vinyl alcohol with maleic acid as a builder. Preferred copolymer salts have the formula in which m is the maleic acid salt fraction in the copolymer, of at most 55 mol. per cent, Me stands for an alkali metal or ammonium ion and n is a whole number within a range of which the lower limit is 3 and of which the upper limit is defined by the solubility of the polymer in water. In the examples the agents contain the sodium salt of a vinyl alcohol/maleic acid copolymer, an alkylaryl sulphonate, non-ionic polyoxypropylene glycol, sodium silicate, magnesium silicate, soap, sodium perborate and carboxymethyl cellulose.

Patent Agency Ranking