Process for separating mixtures of prefluorinated hydrocarbon compounds
    4.
    发明授权
    Process for separating mixtures of prefluorinated hydrocarbon compounds 失效
    分离预氟化烃化合物混合物的方法

    公开(公告)号:US5260496A

    公开(公告)日:1993-11-09

    申请号:US835462

    申请日:1992-02-28

    摘要: A process for separation of mixtures of partially- or perfluorinated hydrocarbon compounds, which optionally contain additional chain members from the heteroatom group nitrogen, oxygen, boron, phosphorus and sulfur and/or can be substituted by further halogen atoms, characterized in that such partially- or perfluorinated compounds, which have an acyclic straight-chain structure and a critical molecule diameter in the range from 4 to 7 .ANG. or are substituted by residues with a straight-chain acyclic structure and with a critical molecule diameter in the range from 4 to 7 .ANG., of such partially- or perfluorinated compounds, which have no straight-chain acyclic residues, and whose critical molecule diameter amounts to at least 1.1-fold times the that of the aforementioned straight-chain acyclic residues, in liquid or gaseous phase are separated in that a mixture or a solution of the mixture in an inert organic solvent, the molecular diameter of which is larger that of the aforementioned straight-chain acyclic residue, is contacted with an amount of a molecular sieve sufficient for adsorption, the average pore diameter of which lies in the range of the critical molecule diameter of the aforesaid acyclic residue or up to 30% less, separating the molecular sieve laden predominantly with compounds containing acyclic residues, and desorbing the compounds adsorbed on the molecular sieve.

    摘要翻译: PCT No.PCT / DE90 / 00658 Sec。 一九九二年二月二十八日 102(e)日期1992年2月28日PCT提交1990年8月28日PCT公布。 出版物WO91 / 03442 1991年3月21日。一种用于分离部分或全氟化烃化合物的混合物的方法,其任选地包含来自杂原子基团氮,氧,硼,磷和硫的另外的链成员和/或可被其它卤素原子取代 其特征在于这样的部分或全氟化合物,其具有无环直链结构和临界分子直径在4至7个ANGSTROM范围内,或被具有直链无环结构的残基和具有临界分子直径 在4至7个ANGSTROM的范围内,这些部分或全氟化合物不具有直链无环残基,其临界分子直径等于上述直链无环残基的至少1.1倍, 在液相或气相中分离出混合物或混合物在惰性有机溶剂中的溶液,其分子直径大 与上述直链无环残基的相同程度与一定量的足够吸附的分子筛接触,其平均孔径在上述无环残基的临界分子直径的范围内或最少减少30% 分离主要含有无环残基的化合物的分子筛,并解吸吸附在分子筛上的化合物。

    Treatment liquid for reapplying (unfolding) detached retina to the
chorioid of the eye
    6.
    发明授权
    Treatment liquid for reapplying (unfolding) detached retina to the chorioid of the eye 失效
    将再剥离(解折叠)的视网膜用于眼睛的绒毛膜的处理液

    公开(公告)号:US5397805A

    公开(公告)日:1995-03-14

    申请号:US82529

    申请日:1993-06-25

    申请人: Hasso Meinert

    发明人: Hasso Meinert

    摘要: A treatment liquid for unfolding detached retina to the chorioid of the eye containing a PFC-mixture whose PFCs are free from C.dbd.C-double bonds and C--H-bonds, with a reduced vapor pressure and a refractive index by virtue of which the PFC/tissue fluid interface is made visible.

    摘要翻译: 一种用于将分离的视网膜展开到眼睛的绒毛膜上的处理液,其含有PFC-不含C = C-双键和CH键的PFC-混合物,蒸气压和折射率降低,PFC / 使组织液界面可见。

    Method of purifying perfluorocarbons, and use of the perfluorocarbons
thus purified
    9.
    发明授权
    Method of purifying perfluorocarbons, and use of the perfluorocarbons thus purified 失效
    纯化全氟化碳的方法,以及如此纯化的全氟化碳的使用

    公开(公告)号:US5563306A

    公开(公告)日:1996-10-08

    申请号:US290833

    申请日:1994-11-03

    申请人: Hasso Meinert

    发明人: Hasso Meinert

    CPC分类号: C07C17/395

    摘要: Described is a method for the purification of perfluorocarbons, or mixtures of perfluorocarbons, having impurities containing hydrogen and/or carbon-carbon double bonds. The impure perfluorocarbons or perfluorocarbon mixtures are reacted with strong aqueous bases in the presence of Ca.sup.2+ or Ba.sup.2+ ions and alcoholate ions together with secondary amines.

    摘要翻译: PCT No.PCT / DE93 / 00061 Sec。 371日期:1994年11月3日 102(e)1994年11月3日日期PCT 1993年1月21日PCT PCT。 公开号WO93 / 16974 日期1993年9月2日描述了具有含有氢和/或碳 - 碳双键的杂质的全氟化碳或全氟化碳的混合物的纯化方法。 不纯的全氟化碳或全氟化碳混合物与Ca2 +或Ba2 +离子和醇化物离子与仲胺一起存在下与强碱水溶液反应。