COMPOSITE POLYAMIDE MEMBRANE POST-TREATED WITH NITROUS ACID
申请人:Dow Global Technologies LLC
公开号:US20170203259A1
公开(公告)日:2017-07-20
A method for making a composite polyamide membrane comprising a porous support and a polyamide layer, including the steps of: i) applying a polar solution comprising a polyfunctional amine monomer and a non-polar solution comprising a polyfunctional acyl halide monomer to a surface of a porous support and interfacially polymerizing the monomers to form a polyamide layer; and ii) exposing the thin film polyamide layer to nitrous acid; wherein the method is characterized by at least one of: conducting the interfacial polymerization of step i) in the presence of a subject amine compound, or applying a subject amine compound to the interfacially polymerized polyamide layer prior to step ii), wherein the subject amine compound is different from the polyfunctional acyl halide and polyfunctional amine monomers.
US9943810B2
申请人:——
公开号:US9943810B2
公开(公告)日:2018-04-17
[EN] DYE COMPOSITION COMPRISING AT LEAST ONE PARTICULAR LIPOPHILIC META-PHENYLENEDIAMINE COUPLER IN A MEDIUM RICH IN FATTY SUBSTANCES, PROCESSES AND DEVICES<br/>[FR] COMPOSITION DE TEINTURE COMPORTANT AU MOINS UN COUPLEUR MÉTA-PHÉNYLÈNEDIAMINE LIPHOPHILE PARTICULIER DANS UN MILIEU RICHE EN SUBSTANCES GRASSES, PROCÉDÉS ET DISPOSITIFS
申请人:OREAL
公开号:WO2014118092A2
公开(公告)日:2014-08-07
The present invention relates to a composition for dyeing keratin fibres, comprising one or more fatty substances, one or more surfactants, one or more oxidation bases, one or more couplers of meta-phenylenediamine type with a logP of greater than or equal to 1, and one or more basifying agents, the fatty substance content in the dye composition representing in total at least 10% by weight relative to the total weight of the said composition. The invention also relates to a dyeing process using such a composition, and also to devices suitable for performing such a process.
Haworth; Lamberton; Woodcock, Journal of the Chemical Society, 1947, p. 179