31.
    发明专利
    未知

    公开(公告)号:AT114727T

    公开(公告)日:1994-12-15

    申请号:AT90114574

    申请日:1990-07-30

    Applicant: BASF AG

    Abstract: Use of copolymers obtainable by free-radical copolymerisation of (a) C8-C40-monoolefins with (b) ethylenically unsaturated C4-C8-dicarboxylic anhydrides in the manner of a mass polymerisation at from 80 to 300 DEG C to form copolymers having molecular weights of from 500 to 20,000 g/mol, subsequent solvolysis of the anhydride groups of the copolymers and at least partial neutralisation in an aqueous medium with bases of the carboxyl groups formed in the course of the solvolysis and which are present in the form of aqueous dispersions or solutions, as agents for waterproofing leathers and pelt furs.

    32.
    发明专利
    未知

    公开(公告)号:DE3735056A1

    公开(公告)日:1989-04-27

    申请号:DE3735056

    申请日:1987-10-16

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing ether sulphonates or polyglycol ether sulphonates by reaction of organic alcoholic or phenolic compounds or the corresponding alkoxides in aqueous solution with vinyl sulphonate in the presence of 0.1 to 3.0 % by weight of an alkaline catalyst and, if desired, additionally a phase-transfer catalyst; and to so prepared ether sulphonates or polyglycol ether sulphonates of the formula… R-O(CnH2nO)z-CH2CH2SO3X… in which… R is H, aliphatic or aromatic hydrocarbon radical (with or without nitrogen as the heteroatom) having 1 to 30 carbon atoms… n is 2 to 30… z is 0 to 300 and… X is an alkali metal.

    37.
    发明专利
    未知

    公开(公告)号:DE59406811D1

    公开(公告)日:1998-10-08

    申请号:DE59406811

    申请日:1994-06-01

    Applicant: BASF AG

    Abstract: The preparation of polyisobutylsuccinic anhydrides having a mean molar ratio between succinic anhydride groups and polyisobutyl groups of 1.05 : 1 to 1.3 : 1, which comprises reacting polyisobutene having a mean molecular weight Mw of 600 - 5000 and a content of terminal double bonds of at least 70 % with maleic anhydride in a maleic anhydride:polyisobutene molar ratio of from 1.05 : 1 to 3 : 1, at 160 - 210 DEG C in the presence of catalytic amounts of a dicarboxylic acid having 2 to 6 carbon atoms.

    39.
    发明专利
    未知

    公开(公告)号:DE19534847A1

    公开(公告)日:1997-03-27

    申请号:DE19534847

    申请日:1995-09-20

    Applicant: BASF AG

    Abstract: The invention concerns the use of polycarboxylic acid half-amides obtained by reacting (a) polymers containing anhydride groups and having an average molecular mass Mw of between 200 and 100 000, and (b) aminocarboxylic acids comprising a primary or secondary amino group, taurine, C1-C18 alkyltaurines and/or aminophosphonic acid, as an encrustation-inhibiting additive to phosphate-free and phosphate-reduced washing and cleaning agents.

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