Abstract: The invention relates to the use of a block copolymer having at least one block that comprises phosphate and/or phosphonate functions, as an additive for film-forming compositions, such as paint, latex or mastic which is optionally siliconised in order to ensure or promote the adhesion of the aforementioned compositions on a metallic surface or to protect said metallic surface against corrosion. The invention also relates to film-forming compositions comprising the abovementioned block copolymers.

Abstract: The invention concerns a method for producing a cyclic L-amino acid of formula (I), characterised in that it consists in reacting a L-diamino acid of formula (II) or an enantiomeric mixture comprising such a L-diamino acid and a corresponding D-diamino acid in variable proportions, in the presence of an ornithine cyclodeaminase or a polypeptide homologous to the ornithine cyclodeaminase.

Abstract: The invention relates to compounds having the general formula (I), the method of preparation thereof and the use thereof in organic radical synthesis. The invention also relates to compounds having the formula (II), the method of preparation thereof and a method for preparing compounds having the formula (VIII).

Abstract: A process for increasing the surface tension (“wettability”) of a silicone element crosslinked by polyaddition from a liquid composition containing one or more ?,?-dimethylvinylpolydimethylsiloxanes (PDMS), one or more poly(dimethyl)(methylhydrogenosiloxy)-?,?-dimethylhydrogenosiloxanes, and a platinum crosslinking catalyst. The silicone surface is treated with a homogeneous atmospheric plasma using a plasma spraying apparatus having a rotating head with one or more plasma nozzles that are offset relative to the axis of rotation, each one being capable of generating a plasma jet whose axis is parallel to said axis of rotation. The articles to which the invention relate include composites of flexible substrate (e.g. textile)/silicone coating. Application: adhesive bonding of silicone surfaces crosslinked by ?Si—H/?Si-vinyl polyaddition.

Abstract: A novel method of reducing a functional group in an oxidised form. The invention relates more particularly to the reduction of aldehyde, ketone, ester, lactone, nitrile or phosphine oxide groups. The reduction method according to the invention is characterised in that it comprises exposing the substrate including the functional group to be reduced to the presence of a siloxane-type compound of the following formula (I), combined with a Lewis acid-type catalyst. In said formula (I):—R1 and R2, which are the same or different, are an alkyl, cycloalkyle or aryl group, —X is a digit from 0 to 50.

Abstract: The present invention relates to a new flame-retardant composition based on a flame retardant impregnated on an inorganic oxide of high porosity, to a process for preparing it and to its use for flame retarding materials and especially polymers.

Abstract: The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R1, R2, R3, R4, R5, and R6, identical or different, are selected among hydrocarbon radicals; the Pn's, advantageously the same, are selected among metalloid elements of column V of a period higher than nitrogen; Z is a metalloid element of column V, advantageously distinct from Pn; preferably a nitrogen (N, P, As, Sb). The invention is applicable to organic synthesis.

Abstract: Dried emulsions suited for formulation into, e.g., plant protection and detergent compositions comprise a matrix of a water-soluble or water-dispersible polymer, in which is dispersed a hydrophobic phase, and also containing a non-polyalkoxylated surfactant, the water-soluble or water-dispersible polymer being a polycarboxylate including hydrophobic units.

Abstract: Zirconium and yttrium oxide-based composition with a specific surface area of at least 12 m2/g following calcination at 1000° C. for 10 hours. This composition is obtained via a method wherein a mixture of zirconium and yttrium compounds is precipitated with a base; the resulting precipitate-containing medium is heated; a compound selected from anionic surfactants, non-ionic surfactants, polyethylene glycols, carboxylic acids and the salts thereof and carboxymethylated fatty alcohol ethoxylate-type surfactants is then added to said precipitate, and, finally, the precipitate is calcined. Said composition can be used as a catalyst.

Abstract: The invention concerns a method for preparing polymers having at least a thiol function, comprising pyrolysis of at least a polymer having at least a function of formula (I), wherein: R1, R2, R3 and R4 are such as defined in the description

Abstract: The zirconium phosphate according to the invention is characterized in that it is crystallized and in that it is comprised of particles that are a maximum 30 nm thick. It is obtained by a method wherein initially phosphoric acid and a zirconium compound are placed in an acid medium, whereupon a precipitate is formed; the precipitate is subsequently separated from the medium thus obtained and is dispersed in a phosphoric acid solution whose concentration is maximum 6 M; the medium thus obtained undergoes thermal treatment at a temperature which is at least equal to the boiling temperature of said medium. Said phosphate can be used in the preparation of compositions based on macromolecular materials in order to improve the properties thereof.

Abstract: The invention relates to a novel method for producing nucleophilic substitutions, particularly of type SNAr and SN2. More specifically, the invention relates to the use as a fluorinating reaction medium of ionic liquid or fused salt comprising at least four carbon atoms. The invention can be used for the synthesis of fluoride derivatives.

Abstract: The invention concerns the use as additive for improving properties of resistance to arc tracking and arc erosion: of a mixture A, B or C formed by: concerning mixture A: A1: platinum; and A2: at least an inorganic compound A2.1 of a metal with several degrees of oxidation selected from the group formed by V, Cr, Mn, Fe, Co, Ni, and Cu, in which the metal atom is at a degree of oxidation higher than zero, the least possible (abbreviation: DOX mini); or A3: a combination of at least an inorganic compound A2.1 with at least an inorganic compound A2.2 in which the atom of V, Cr, Mn, Fe, Co, Ni or Cu is at a degree of oxidation higher than DOX mini; concerning mixture B: B1 platinum; and B2: at least an inorganic compound B2.1 of cerium-IV or of lanthanum-III; or B3: a combination of at least an inorganic compound B2.1 with at least an inorganic compound B2.

Abstract: An aqueous or aqueous-alcoholic crease-resistant formulation comprising a cationic surfactant (CSA), for the treatment after washing in aqueous or aqueous-alcoholic medium of articles made of textile fibers, said formulation also comprising a soluble or dispersible copolymer of controlled architecture (C) that is compatible with the surfactant (CSA) at the pH of said formulation and at the pH of use of said formulation, and comprising at least one nonionic hydrophobic organic polymer block B, and at least one ionic or ionizable organic polymer block A, the copolymer (C) making possible to give said articles properties of crease resistance and/or of ease of ironing.

Abstract: The invention relates to polypropylene-based monofilaments having improved properties, especially an improved abrasion resistance, to a process for manufacturing these monofilaments and to their use. The invention relates more particularly to polypropylene-based monofilaments obtained from a polypropylene having a melt flow index (MFI) at 230° C./2.16 kg of less than or equal to 1.9 g/10 min.

Abstract: The present invention relates to herbicidal compositions comprising aminophosphate or aminophosphonate salts, particularly to herbicidal compositions comprising a high amount and aminophosphate or aminophosphonate salts and a betaine surfactant and an amine oxide surfactant.

Abstract: A stereoselective method for preparing a chiral fluorinated molecule comprising: (i) introducing a fluorosulfite compound having a C*-OSOF unit into a reactor; (2i) conducting thermal decomposition of said compound in the presence of a nucleophilic catalyst; and (3i) recovering the resultant fluorinated molecule having a C*-F unit in the inverse configuration relative to the starting C*-OSOF unit.

Abstract: The invention provides a ferment activator based on lactic acid bacteria, which comprises at least a nitrogenous substance, a buffer system capable of maintaining the pH for activity of the lactic acid bacteria with which said activator has to be combined at a value between 5 and 7, and which comprises at the most 15% by weight of sugars which can be metabolized by said lactic acid bacteria, the activator thus delaying or limiting cell multiplication, while allowing the ferment to resume its metabolic activity.

Abstract: The invention concerns the preparation of a silica suspension in a silicon fluid, said suspension being used to produce silicon vulcanisable by polyaddition (RTV elastomers). The problem which the invention aims to solve is that of finding a technical compromise between the rheological and mechanical properties of the final RTV. The invention solves the problem by providing a method for preparing a silica suspension treated with hexamethyldisilazane (HMDZ) in a silicon fluid with siloxyl Si-Vinyl function, characterized in that it consists essentially in introducing HMDZ in the preparation medium, before and/or substantially while bringing at least part of the silicon fluid prepared with at least part of the particulate filler used, said introduction being carried out once or several times for a HMDZ fraction corresponding to a proportion not more than 8% by dry weight with respect to the total silica charge and after bringing together the POS and the filler.

Abstract: Silicone compositions that are cationically crosslinkable into hard, anti-mist/anti-fouling coatings, e.g., onto thermoplastic substrates, contain colloidal particles of non-functionalized silica and also: at least one crosslinkable and/or polymerizable silicone monomer, oligomer and/or polymer comprising: at least one structural unit of formula (I): Z1(R0)aSiO(3?a)/2 ??(I) in which: a=0, 1 or 2; the radicals R0, which may be identical or different when a>1, are each an alkyl, cycloalkyl, aryl, vinyl, or alkoxy radical, or a hydrogen atom; the radicals Z1, which may be identical or different when the number of units of formula (I) is greater than 1, are each an organic substituent comprising at least one epoxy and/or alkenyl ether and/or oxetane and/or dioxolane and/or carbonate reactive functional group; and a total number of silicon atoms per molecule at least equal to 2; and an effective amount of at least one cationic initiator; and optionally, at least one organic solvent.