Process for preparing nitric acid esters of 1,1,2,2-tetrahydro-perfluoro-alkanols
    321.
    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。

    Process for preparation of pentolite
    323.
    发明授权
    Process for preparation of pentolite 失效
    制备PENTOLITE的方法

    公开(公告)号:US3580754A

    公开(公告)日:1971-05-25

    申请号:US3580754D

    申请日:1969-05-01

    Applicant: DU PONT

    Inventor: BARNHARD PHILIP

    CPC classification number: C06B25/32 C06B21/0008 C07C201/02 C07C203/04

    Abstract: PROCESS FOR THE PREPARATION OF STABLE PENTOLITE FROM CRUDE PENTAERYTHRITOL TETRANITRATE COMPRISING AGITATING IN WATER A MIXTURE OF MOLTEN TRINITROPOTOLUENE AND CRUDE PENTAERYTHRITOL TETRANITRATE AT A TEMPERATURE ABOVE THE MELTING POINT OF THE TRINITROTOLUENE AND BELOW THE MELTING POINT OF THE PENTAERYTHRITOL TETRANITRATE, WHILE MAINTAINING THE PH OF THE WATER IN THE RANGE FROM 7 TO ABOUT 10, FOLLOWED BY SEPARATING THE PENTOLITE FROM THE AQUEOUS PHASE.

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