Process for preparing nitric acid esters of 1,1,2,2-tetrahydro-perfluoro-alkanols
    1.
    发明授权
    Process for preparing nitric acid esters of 1,1,2,2-tetrahydro-perfluoro-alkanols 失效
    制备1,1,2,2-四氢 - 全氟 - 链烷醇的硝酸酯的方法

    公开(公告)号:US3875206A

    公开(公告)日:1975-04-01

    申请号:US44798474

    申请日:1974-03-04

    Applicant: HOECHST AG

    Abstract: 2-Perfluoroalkyl ethanols are obtained by reacting 2-perfluoroalkyl ethyliodides with at least the two-fold molar amount of nitric acid of about 70 to 98 percent strength and hydrogenating the intermediates, which are the nitrates of the desired ethanols. The products are useful as starting materials for the production of hydrophobic and oleophobic textile finishing agents, e.g. the polymer acrylates and methacrylates of said 2perfluoroalkyl-ethanols.

    Abstract translation: 2-全氟烷基乙醇通过使2-全氟烷基乙基碘化物与至少两倍摩尔量的硝酸浓度为约70-98%的强度反应并氢化作为所需乙醇的硝酸盐的中间体来获得。 该产品可用作生产疏水和疏油纺织整理剂的起始材料,例如, 所述2-全氟烷基 - 乙醇的聚合物丙烯酸酯和甲基丙烯酸酯。

    3.
    发明专利
    未知

    公开(公告)号:BR9200156A

    公开(公告)日:1992-10-06

    申请号:BR9200156

    申请日:1992-01-17

    Applicant: HOECHST AG

    Abstract: Stable and homogeneous aqueous formulations of surfactants with an HLB of less than or equal to 13, which additionally contain a compound of the formula I in which R is C1-C8-alkyl, C1-C8-alkenyl, phenyl, alkylphenyl or phenalkyl with, in each case, 1 to 4 C atoms in the alkyl chain or cyclohexyl, R is hydrogen, or one of the radicals mentioned for R or R and R together with the N atom denote a heterocyclic radical, M is an alkali metal or ammonium cation or an equivalent of an alkaline earth or aluminium cation, and m and n are each, independently of one another, numbers from 6 to 8. The presence of the compounds of the formula I makes it possible to prepare stable and homogeneous aqueous formulations even of those surfactants which are otherwise only sparingly soluble or even insoluble in water.

    STABLE AND HOMOGENEOUS AQUEOUS FORMULATIONS OF SURFACTANTS

    公开(公告)号:CA2059603A1

    公开(公告)日:1992-07-20

    申请号:CA2059603

    申请日:1992-01-17

    Applicant: HOECHST AG

    Abstract: Stable and homogeneous aqueous formulations of surfactants stable and homogeneous aqueous formulations of surfact- ants having an HLB value of less than or equal to 13, which additionally contain a compound of the formula I in which R1 is C1-C8-alkyl, C1-C8-alkenyl, phenyl, alkyl- phenyl or phenalkyl having in each case 1 to 4 carbon atoms in the alkyl chain or cyclohexyl, R2 is hydrogen or one of the radicals mentioned for R1, or R1 and R2, together with the nitrogen atom, are a heterocyclic radical, M is an alkali metal cation, an ammonium cation or one equivalent of an alkaline earth metal or aluminium cation and m and n in each case independently of one another are numbers from 6 to 8. By the presence of the compounds of the formula I, it is possible to prepare stable and homogeneous aqueous formulations even from those surfactants which are otherwise only sparingly soluble or not soluble at all in water.

    9.
    发明专利
    未知

    公开(公告)号:DE19544422A1

    公开(公告)日:1997-06-05

    申请号:DE19544422

    申请日:1995-11-29

    Applicant: HOECHST AG

    Abstract: The claimed polyhydroxy amide sulphosuccinates have formula (1), where R is an alkyl group, R CO is an acyl group, y is a number between 3 and 9 and Z(OX)y is a polyhydroxy hydrocarbon group partially esterified with maleic acid or maleic acid anhydride and subsequently sulphited, and X is hydrogen or a sulphosuccinate group. The claimed sulphosuccinates and in particular mixtures thereof with fatty alcohol alkoxylate-sulphosuccinates have among other things very good foaming qualities, very good skin compatability and an unexpectedly high capacity for thickening in combination with standard ether sulphates and alkali metal salts such as sodium chloride.

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