11.
    发明专利
    未知

    公开(公告)号:DK514282A

    公开(公告)日:1983-05-20

    申请号:DK514282

    申请日:1982-11-18

    Applicant: HOECHST AG

    Abstract: Bis-betaines of the formula in which R denotes a saturated or an olefinically unsaturated hydrocarbon radical which has 1 to 3 double bonds and 8 to 22 carbon atoms, n1 and n2 represent an integer from 2 to 3, and n1 and n2 can be identical or different, m1 and m2 represent an integer from 1 to 4, and m1 and m2 can be identical or different, and a, b, c and d, which are identical or different, each is a number from 1 to 5, but the sum (a+b+c+d) should be at most 10. The compounds are prepared from primary amines of the formula RNH2, by dicyanoalkylation, hydrogenation, ethoxylation and reaction with alkali metal salts of omega -halogenocarboxylic acids. They are suitable for formluating cosmetic and industrial cleaning agents.

    BETAINE AMINOXIDES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS TENSIDES

    公开(公告)号:DE3360042D1

    公开(公告)日:1985-02-14

    申请号:DE3360042

    申请日:1983-04-20

    Applicant: HOECHST AG

    Abstract: Betaine-amine oxides of the formula in which R denotes alkyl, alkenyl or hydroxyalkyl, each of which has 8-22 carbon atoms, R1 denotes hydrogen or methyl, R2 denotes ethylene, propylene or 2-hydroxypropylene, R3, R4 and R5 can be identical or different and denote C1-C3-alkyl or a group of the formula or R3 denotes a group of the formula -R2-BR4R5, X denotes a direct bond or a group of the formula -CO-, A and B denote a group of the formulae it being necessary for at least one amine oxide group and at least one betaine group to be present, a denotes 0 or 1, b denotes 1, 2 or 3, n denotes a number from 0 to 10 and m denotes 1, 2 or 3. These compounds are obtained by partially quaternizing the parent polyamines with the alkali metal salt of an omega -halogenocarboxylic acid and then oxidizing the non-quaternized nitrogen atoms. These betaine-amine oxides are suitable for use as surfactants in cleansing agents.

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