Abstract: Disclosed is a compound with the following formula (I): as well as the use thereof, in particular as a chelating agent of positively charged ions, or as a fluidizing agent for hydraulic compositions. Also disclosed is a hydraulic composition comprising a compound with formula (I), at least one hydraulic binder, at least one aggregate, and water.

Abstract: A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. The copolymer can be included in an admixture for suspensions of mineral particles and in a composition of mineral particles. The copolymer can also be used for fluidifying and maintaining fluid, suspensions of mineral particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.

Abstract: Disclosed is a block copolymer including: at least one block A not including any phosphonate group, and including at least one poly(alkylene oxide) group and at least one block B obtained by polymerization of a monomer B1 or of a mixture of monomers with ethylenic unsaturation including at least one monomer B1, wherein a monomer B1 is a monomer with ethylenic unsaturation including at least one phosphonate function, to its preparation method by RAFT controlled radical polymerization and to its uses.

Abstract: A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. The copolymer can be included in an admixture for suspensions of mineral particles and in a composition of mineral particles. The copolymer can also be used for fluidifying and maintaining fluid, suspensions of mineral particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.

Abstract: A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. A composition, such as n admixture for suspensions of mineral particles, includes the copolymer. The copolymer can be used for fluidifying suspensions of mineral particles and maintaining the fluidity of such suspensions. The copolymer can also be used for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.

Abstract: Alpha/alpha-prime/alkoxylated glycerol linear carbonic esters have formula (VI): where p is an integer higher than 1, x is an integer equaling 0 or 1 with x not always being zero, and M1 is hydrogen (H). Q1 can be a hydrocarbon aliphatic group, an amino hydrocarbon group or an oxygenated amino hydrocarbon group. G1 can be an ?/??-alkoxylated propyl group of general formula (II?): where R4, R5 and R6 are variously hydrogen (H), an alkyl or an amino-alkyl group having 1 to 5 carbon atoms, or general formula (VII): where R7 is a H or a hydrocarbon group having 1 to 6 carbon atoms, and m is an integer between 0 and 10 inclusive, and X is —O— or —NH—.

Abstract: Alpha/alpha-prime/alkoxylated glycerol linear carbonic esters have formula (VI): where p is an integer higher than 1, x is an integer equaling 0 or 1 with x not always being zero, and M1 is hydrogen (H). Q1 can be a hydrocarbon aliphatic group, an amino hydrocarbon group or an oxygenated amino hydrocarbon group. G1 can be an ?/??-alkoxylated propyl group of general formula (II?): where R4, R5 and R6 are variously hydrogen (H), an alkyl or an amino-alkyl group having 1 to 5 carbon atoms, or general formula (VII): where R7 is a H or a hydrocarbon group having 1 to 6 carbon atoms, and m is an integer between 0 and 10 inclusive, and X is —O— or —NH—.

Abstract: A method for the synthesis of ?/??-alcoxylated glycerol linear carbonic esters, wherein the following are brought into contact at a reaction temperature lower than 220° C.: a quantity of at least one precursor selected from the group consisting of ?/??-alcoxylated glycerol cyclo-carbonates; a quantity of at least one catalyst selected from the group consisting of metal oxides, Lewis acids, organometallic catalysts and mineral bases; and a quantity of at least one organic primer. A composition containing at least one novel ?/??-alkoxylated glycerol linear carbonic ester.

Abstract: Disclosed is a block copolymer including: at least one block A not including any phosphonate group, and including at least one poly(alkylene oxide) group and at least one block B obtained by polymerization of a monomer B1 or of a mixture of monomers with ethylenic unsaturation including at least one monomer B1, wherein a monomer B1 is a monomer with ethylenic unsaturation including at least one phosphonate function, to its preparation method by RAFT controlled radical polymerization and to its uses.

Abstract: The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups, polyoxyalkylate groups, and gem acetophosphonate groups, an adjuvant for suspensions of mineral particles comprising said copolymer and a method for preparing said copolymer. Finally it also relates to the use of said copolymer for fluidifying and maintaining fluidity of suspensions of mineral particles and for reducing the sensitivity of hydraulic binders to clays and alkali metal sulfates. Finally it relates to a composition of mineral particles comprising this copolymer.

Abstract: A method for the synthesis of ?/??-alcoxylated glycerol linear carbonic esters, wherein the following are brought into contact at a reaction temperature lower than 220° C.: a quantity of at least one precursor selected from the group consisting of ?/??-alcoxylated glycerol cyclo-carbonates; a quantity of at least one catalyst selected from the group consisting of metal oxides, Lewis acids, organometallic catalysts and mineral bases; and a quantity of at least one organic primer. A composition containing at least one novel ?/??-alkoxylated glycerol linear carbonic ester.

Abstract: A method for inerting clays in a hydraulic composition includes one step of putting a hydraulic composition or a constituent of a hydraulic composition in contact with a compound of the formula (I) R—COO31, (Mn+)1/n, wherein a method for making hydraulic composition, a pretreated granulate which may be obtained by mixing a granulate with the compound of formula (I), and an additive for inerting clays including a superplasticizer and the compound of formula (I) are described.

Abstract: The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups, characterized in that it further includes gem acetophosphonate groups, an adjuvant for suspensions of mineral particles comprising said copolymer and a method for preparing said copolymer. Finally it also relates to the use of said copolymer for fluidifying and maintaining fluidity of suspensions of mineral particles and for reducing the sensitivity of hydraulic binders to clays and alkaline sulfates. Finally it relates to a composition of mineral particles comprising this copolymer.

Abstract: The invention relates to a compound of following formula (I): the preparation method thereof and the use of same.

Abstract: The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups, characterized in that it further includes gem-bisphosphonate groups, an admixture for suspensions of mineral particles comprising said copolymer and to a method for preparing said copolymer. Finally it relates to the use of said copolymer for fluidifying and maintaining fluid, suspensions of mineral particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates. Finally it relates to a composition of mineral particles comprising this copolymer.

Abstract: A method for inerting clays in a hydraulic composition includes one step of putting a hydraulic composition or a constituent of a hydraulic composition in contact with a compound of the following formula (I): R—COO?, (Mn+)1/n??(I), A hydraulic composition including the compound of formula (I), a method for preparing the hydraulic composition, a pretreated granulate which may be obtained by mixing a granulate with the compound of formula (I), and an additive for inerting clays including a superplasticizer and the compound of formula (I) are also described.

Abstract: The invention relates to a compound of following formula (I): the preparation method thereof and the use of same.

Abstract: The invention relates to a method of preparing a block copolymer, the first block of which is a polymer or a copolymer having at least one diene and the second block of which is a polymer with a polar monomer. The inventive method is characterised in that: first, the polymerisation or the copolymerisation of the first block is carried out in the presence of a catalyst comprising the product of the reaction of a rare earth alcoholate and an alkylating agent selected from among organolithiums, organomagnesiums, organozincs, organoaluminiums and borons; and, secondly, the copolymerisation of the polar monomer is performed with the first block in the presence of the same catalyst. The invention also relates to a block copolymer consisting of a first block comprising a polymer or a linear copolymer having at least one diene and a second block comprising a polymer presenting several hydroxy, epoxy and/or alkoxysilyl functions.

Abstract: The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, at least a dithiophosphoroester compound.

Abstract: The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, and at least a cyclic organic compound including at least a tetrathiophosphate group.