摘要:
An electrolyte composition that includes a salt disposed in a matrix in which the salt has a formula selected from the group consisting of ##STR1## in which X.sup.- is --O.sup.-, --N.sup.- SO.sub.2 R.sub.f.sup.3, or ##STR2## Z is --CF.sub.2 --, --O--, --NR.sub.f.sup.8 --, or --SF.sub.4 --; R.sub.f.sup.1 and R.sub.f.sup.2, independently, are --CF.sub.3, --C.sub.m F.sub.2m+1, or --(CF.sub.2).sub.q --SO.sub.2 --X.sup.- M.sup.+ ; R.sub.f.sup.3, R.sub.f.sup.4, and R.sub.f.sup.5, independently, are --CF.sub.3, --C.sub.mf.sub.2m+1, --(CF.sub.2).sub.q --X.sup.- M.sup.+, ##STR3## R.sub.f.sup.8 is --CF.sub.3, --C.sub.m F.sub.2m+1, or --(CF.sub.2).sub.q --SO.sub.2 --X.sup.- M.sup.+ ; R.sub.f.sup.6 and R.sub.f.sup.7, independently, are perfluoroalkylene moieties having the formula --C.sub.r F.sub.2r ; n is 1-4; r is 1-4; m is 1-12; q is 1-4; and M.sup.+ is a counterion.
摘要:
A method for improving the recovery of gold and silver from precious metal ore is disclosed. The method comprises contacting precious metal ore with an aqueous solution containing certain fluoroaliphatic surfactants.
摘要:
A method for improving the recovery of gold and silver from precious metal ore is disclosed. The method comprises contacting precious metal ore with an aqueous solution containing certain fluoroaliphatic surfactants.
摘要:
Water-based coating compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) a sol comprising a colloidal dispersion of surface-modified, inorganic microparticles in liquid; at least one of the components (a), (b), and (c) further comprising at least one fluoroaliphatic moiety. The compositions can be used to form hard coatings having low surface energy and high abrasion resistance.
摘要:
Described are monomeric fluorochemical surfactants having two perfluoroalkyl sulfonamido segments and two hydrophilic group, which are more efficient and effective in lowering the surface tension of organic solvents and water compared to other C4-based fluorochemical surfactants.
摘要:
Novel aqueous, acid etch solutions comprising a fluorinated surfactant are provided. The etch solutions are used with a wide variety of substrates, for example, in the etching of silicon oxide-containing substrates.
摘要:
The present invention relates to an X-ray intensifying screen comprising a support, a fluorescent layer coated thereon which comprises fluorescent phosphor particles dispersed in a binder, and a protective top-coat layer covering said fluorescent layer, characterized in that at least one of said fluorescent and top-coat layers comprises at least one salt selected from the group consisting of fluoroalkylsulfonyl methides, fluoroalkylsulfonyl imides, and fluoroalkylsulfonyl amides.
摘要:
Novel aqueous, acid etch solutions comprising a fluorinated surfactant are provided. The etch solutions are used with a wide variety of substrates, for example, in the etching of silicon oxide-containing substrates.
摘要:
The present invention relates to a silver halide photographic material comprising a support, at least one silver halide emulsion layer coated thereon, and a hydrophilic colloid layer coated on said at least one silver halide emulsion layer, wherein said hydrophilic colloid layer comprises a combination of (a) at least one surfactant selected from the group consisting of non-ionic perfluoroalkyl(ene)polyoxyethylene surfactants and polyoxyethylene-modified polysiloxane surfactants, and (b) at least one salt of perfluoroalkylsulfonyl imide or perfluoroalkylsulfonyl methide.
摘要:
A method of modifying a surface of a hydrocarbon-bearing formation is disclosed. The method includes contacting the surface of the hydrocarbon-bearing formation with a fluorinated amine, and the surface of the hydrocarbon-bearing formation includes a carbonate. The method can typically include introducing a treatment composition comprising solvent and at least one of the fluorinated amine or a salt thereof into the carbonate hydrocarbon-bearing formation. Hydrocarbon-bearing formations treated according to the method are also disclosed. Certain fluorinated amines useful for treating carbonate hydrocarbon-bearing formations and methods of making them are also disclosed.