Fire extinguishing compositions containing fluorinated surfactants
    2.
    发明授权
    Fire extinguishing compositions containing fluorinated surfactants 失效
    含氟表面活性剂的灭火组合物

    公开(公告)号:US3941705A

    公开(公告)日:1976-03-02

    申请号:US559565

    申请日:1975-03-18

    IPC分类号: A62D1/02 A62D1/00

    CPC分类号: A62D1/0085 Y10S516/06

    摘要: A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU1## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R.sub.1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R.sub.2 and R.sub.3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formulaC.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O--(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R.sub.4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one amine salt compound of the formula ##EQU2## wherein X is the group CO or SO.sub.2 R.sub.1, R.sub.5 and R.sub.6 may be hydrogen atoms, alkyl radicals containing from 1 to 6 atoms of carbon, or the group ##EQU3## in which R.sub.2, R.sub.3, p and q have the values given above.

    摘要翻译: 一种表面活性氟化组合物,其特征在于其中含有35%至约60%的至少一种式R 2 C n F 2n + 1(CH 2)a-CON-(CH 2)p N +的表面活性两性电解质化合物 ---(CH2)qCOO - | R1R3其中n为1至20之间的整数,a为2至10之间的数,R1为氢原子或含有1至6个碳原子的烷基, R2和R3是含有1至3个碳原子的烷基,其中至少一个是甲基,p和q是0和10之间的整数; 约20%至约40%的至少一种式CnF2n + 1-(CH2)a-CO-O-(CH2-CH2-O)mR4的表面活性氟化非离子化合物,其中n和a具有 m为1〜20的整数,R 4为含有1〜6个碳原子的烷基; 和约8%至约40%的至少一种式R 1 C n F 2n + 1 - (CH 2)a -XO - HN - R 6 R 6的胺盐化合物,其中X为基团CO或SO 2 + L,R 1,R 5和R 6可以是氢原子,含有1至6个碳原子的烷基或基团R 2 - (CH 2)p N + - (CH 2)q -COOH - ,其中 R2,R3,p和q具有上面给出的值。

    Process for drying difluoromethane
    6.
    发明授权
    Process for drying difluoromethane 有权
    二氟甲烷干燥方法

    公开(公告)号:US07273512B2

    公开(公告)日:2007-09-25

    申请号:US10278587

    申请日:2002-10-23

    申请人: Rene Bertocchio

    发明人: Rene Bertocchio

    IPC分类号: B01D53/02

    CPC分类号: C07C17/38 B01J20/3408

    摘要: Process for drying wet F32, which comprises placing a stream of the said F32 in continuous contact with a feed stock of a composition comprising a molecular sieve chosen from a 3A type sieve, at a temperature of between 5 and 78° C. and at a pressure of between 0.5 and 25 atm.

    摘要翻译: 用于干燥湿F32的方法,其包括将所述F32的物流与包含选自3A型筛分子筛的组合物的原料在5至78℃之间的温度下连续接触, 压力在0.5至25atm之间。

    Polyfluoro compounds and method for preparing them
    9.
    发明授权
    Polyfluoro compounds and method for preparing them 失效
    多氟化合物及其制备方法

    公开(公告)号:US4855025A

    公开(公告)日:1989-08-08

    申请号:US111188

    申请日:1987-10-22

    IPC分类号: C07C53/21 C07C233/12

    CPC分类号: C07C53/21

    摘要: This invention relates to compounds which simultaneously contain a perfluorinated chain and a hydrogenated chain and which correspond to the general formula: ##STR1## in which R.sub.F is a perfluoroalkyl radical, m an integer from 0 to 2, R.sub.H an alkyl radical, X an OH or NR.sub.1 R.sub.2 group, and R.sub.1 and R.sub.2 are hydrogen atoms or methyl radicals. The amides (X=NR.sub.1 R.sub.2) are prepared by photoamidation of the polyfluoroolefins R.sub.F --(CH.sub.2).sub.p --CH.dbd.CH--C.sub.n H.sub.2n+1 where p is equal to 0 or 1 and n is an integer from 1 to 17, and the acids (X=OH) are prepared by hydrolysis of the amides thus obtained.The acids and their salts may be employed as surface-active agents or, as also the amides, as intermediates for the synthesis of such agents.

    摘要翻译: 本发明涉及同时含有全氟化链和氢化链的化合物,其对应于以下通式:其中RF是全氟烷基,m为0-2的整数,RH为烷基,X为OH 或NR1R2基团,R1和R2是氢原子或甲基。 酰胺(X = NR1R2)通过聚氟烯烃RF-(CH2)p-CH = CH-CnH2n + 1的光聚酰胺化制备,其中p等于0或1,n是1至17的整数,并且酸( X = OH)通过水解由此获得的酰胺制备。 酸和它们的盐可以用作表面活性剂,也可以作为酰胺用作合成这种试剂的中间体。