103.
    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.

    109.
    发明专利
    未知

    公开(公告)号:BR7505450A

    公开(公告)日:1976-08-03

    申请号:BR7505450

    申请日:1975-08-26

    Applicant: HOECHST AG

    Abstract: The corrosion of aqueous heavy pulps which contain ferrosilicon with between 8 and 20 weight % of silicon as a heavy medium and are used in the heavy media separation of minerals is inhibited. To this end, the heavy pulp is used in admixture with between 0.1 and 0.8 weight % of a carboxy-alkane-phosphonic acid of the following formulae: in which R stands for hydrogen or alkyl having from 1 to 4 carbon atoms, or

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