Patent application number | Description | Published |
20090036718 | USE OF A COMPOSITION OF AN IONIC NATURE AS A SUBSTITUTION REAGENT, A COMPOSITION CONSTITUTING A FLUORINATION REAGENT AND A METHOD USING SAME - The invention relates to processes for aromatic nucleophilic substitution by contacting a substrate of formula (III) | 02-05-2009 |
20110034724 | METHOD FOR PREPARING A TRIFLUOROMETHANESULFINIC ACID SALT - The present invention relates to a method for preparing a salt of trifluoromethanesulphinic acid termed “triflinic acid”. More specifically, the invention relates to a method for preparing a highly pure triflinic acid salt. The method of the invention for preparing a highly pure triflinic acid salt, starting from an aqueous mixture comprising the latter combined with a trifluoroacetic acid salt and saline impurities resulting from the method for preparing same, is characterized in that said mixture is subjected to the following operations: first controlled acidification such that the trifluoroacetic acid salt is essentially released in the acid form thereof, the majority of the triflinic acid remaining in a salified form, optional separation of the salts originating from the acid having been used for the acidification and recovery of an aqueous phase, separation of the trifluoroacetic acid from the separated aqueous phase comprising the alkaline salt of triflinic acid, trifluoroacetic acid, triflinic acid and the excess strong acid, therefore resulting in an aqueous phase depleted of trifluoroacetic acid but comprising the alkaline salt of triflinic acid, recovery of the alkaline salt of triflinic acid from the aqueous phase. | 02-10-2011 |
20120123025 | Mixed Phosphonate Flame-Retardants - Mixtures of three types of linear, branched or cyclic phosphates are useful flame retardants, especially for thermoplastic resins or as functional additives in polymer matrices. | 05-17-2012 |
20120197039 | METHOD FOR PREPARING TRIFLUOROMETHANESULPHINIC ACID - The present invention relates to a method for preparing a highly pure trifluoromethanesulphinic acid. The method of the invention for preparing a highly pure trifluoromethanesulphinic acid, starting from an aqueous mixture comprising a trifluoromethanesulphinic acid salt, a trifluoroacetic acid salt and saline impurities resulting from the method for preparing same, is characterized in that said mixture is subjected to the following operations:- acidification such that the trifluoroacetic acid salt and the triflinic acid salt are released in an acid form,- separation of the trifluoroacetic acid and trifluoromethanesulphinic acid by distillation enabling the trifluoroacetic acid to be recovered at the top of the distillation and the trifluoromethanesulphinic acid to be recovered at the bottom of the distillation,- separation by distillation of the trifluoromethanesulphinic acid present in the distillation residue previously obtained. | 08-02-2012 |
20120238527 | ORGANOPHOSPHORUS DERIVATIVES AND USE THEREOF AS UNCOUPLING AGENTS - The present invention relates to an organophosphonium derivative of the mean general formula (1), where n is a number comprised between 4 and 20, preferably between 5 and 10, m is a number between 0 and 10, preferably between 0 and 1, and Y is an anion. | 09-20-2012 |
20120264864 | MODIFIED POLYAMIDE COMPOSITION CONTAINING AT LEAST ONE PHENOLIC COMPOUND - The use of a phenolic compound for producing a modified polyamide having enhanced mechanical properties is described. A polyamide composition including at least such phenolic compound and optionally reinforcing or filler loads is also described. The composition is preferably a composition for molding, for example in the form of granules or powder, that can be used for the production of articles by injection-molding. | 10-18-2012 |