Abstract: The present invention relates to the use of bisamide compounds to improve the ageing resistance and/or increase the service life and/or delay the appearance of signs of ageing of a bituminous composition. The invention also relates to a method for improving the ageing resistance and/or increasing the service life and/or delaying the appearance of signs of ageing of a bituminous composition.

Abstract: The present invention relates to a bituminous composition suitable for forming sealing membranes comprising, in bitumen-based matrix, fillers C that represent 21 to 40% of the total mass of the composition and that are constituted of inorganic particles Ci and polymeric particles Cp of crystal polystyrene or high-impact polystyrene, the mass of polymeric particles Cp representing 1 to 10% of the total mass of the composition and the mass of bitumen representing 40 to 70% of the total mass of the composition. The invention also relates to the method for obtaining such compositions and to the sealing membranes obtained with them.

Abstract: The present invention relates to a fuel composition comprising a liquid fuel and a compound of dimer amide quaternary ammonium type. The invention also relates to the use of the compound of dimer amide quaternary ammonium type as a detergent additive in a liquid fuel for internal combustion engine.

Abstract: The invention relates to a bitumen/polymer composition containing at least one elastomer of the heat-crosslinkable S-B-S type, where S is a styrene or other vinylaromatic polymer block, and B is a polybutadiene block, the composition comprising an adjuvant of the olefin polymer type and having improved mechanical properties. The invention also relates to the use of the compositions in the fields of road applications such as hot mixes; warm mixes; cold mixes, for example cold-cast mixes or emulsion gravel; or surface dressings, for example fluxed bitumen or emulsions; and in the fields of industrial applications, for example in the production of inside and outside coatings.

Abstract: The present invention relates to a fuel composition comprising a liquid fuel and a compound of dimer amide quaternary ammonium type. The invention also relates to the use of the compound of dimer amide quaternary ammonium type as a detergent Q additive in a liquid fuel for internal combustion engine.

Abstract: The subject matter of the present invention is the use, for improving the cold-resistance properties of a fuel or combustible composition, of one or more copolymers comprising:—at least one unit of formula (I): in which R1 is a hydrogen atom or a methyl group; X is —O—CO—, or —CO—O— or —NH—OO— or —CO—NH—; R2 is a C6 to C24 alkyl group; and at least one unit of formula (II): in which R is a substituted or unsubstituted imidazole ring. The invention also relates to compositions of additives containing such a polymer, and also fuel or combustible compositions to which such polymers have been added, preferably in combination with a cold flow improver (CFI) additive or a paraffin anti-settling additive (WASA).

Abstract: A bitumen/polymer composition containing at least one elastomer of the heat-crosslinkable S-B-S type, where S is a styrene or other vinylaromatic polymer block, and B is a polybutadiene block, the composition including an adjuvant of the olefin polymer type and having improved mechanical properties. Also, the use of the compositions in the fields of road applications such as hot mixes; warm mixes; cold mixes, for example cold-cast mixes or emulsion gravel; or surface dressings, for example fluxed bitumen or emulsions; and in the fields of industrial applications, for example in the production of inside and outside coatings.

Abstract: The invention relates to a copolymer comprising: at least one motif of the following formula (I), and motifs of the following formula (II), between 5 and 95 mol % of the groups R of the motifs of formula (II) comprising at least one quaternary amino group. The invention also relates to the production of such a copolymer, and to the use thereof as a detergent additive and/or demulsifying additive in a liquid fuel for an internal combustion engine.

Abstract: The invention relates to a composition of additives for fuel, comprising: (a) one or more copolymer(s) comprising the following units of formulae (I) and units of formula (IIa): R representing a hydrocarbon-based chain substituted with at least one amino group comprising at least one quaternary ammonium or iminium function, and (b) one or more copolymer(s) comprising units of formulae (I) and units of formula (IIb): R representing a hydrocarbon-based chain substituted with at least one amino group comprising at least one primary, secondary or tertiary amine function or imine function. The invention also relates to the use of such a composition as a detergent additive and/or demulsifying additive in a liquid fuel for an internal combustion engine.

Abstract: A copolymer obtained by copolymerization of at least: an apolar monomer (ma) with the following formula (I), where u=0 or I, w=0 or I, E=-0- or —NH(Z)—, or —O—CO—, or —NH—CO— or —CO—NH—, wherein Z is H or an alkyl group, and G is a group selected among an alkyl, an aromatic ring and an arylalkyl; and a polar monomer (mb) selected among those of the following formula (II), wherein t=0 or I, Q is selected among the oxygen atom and the —NR?— group, wherein R? is selected among a hydrogen atom and hydrocarbon chains, and R is a hydrocarbon chain substituted by at least one quaternary ammonium group and optionally one or more hydroxyl groups. The invention also relates to the use of such a copolymer as a detergent additive in a liquid fuel of an internal combustion engine.

Abstract: A block copolymer including: at least one block A of following formula (I): in which p is an integer ranging from 2 to 100, R1? is selected from hydrogen and the methyl group, R2? is chosen from C1 to C34 hydrocarbon-based chains, at least one block B of following formula (II): in which n is an integer ranging from 2 to 40, R1 is chosen from hydrogen and the methyl group, Z is chosen from the oxygen atom and the group —NR?— with R? being chosen from a hydrogen atom and C1 to C12 hydrocarbon-based chains, G is a C1 to C34 hydrocarbon-based chain substituted by at least one quaternary ammonium group and optionally one or more hydroxyl groups. Also, the use of such a block copolymer as detergent additive in an internal combustion engine liquid fuel.

Abstract: A copolymer obtained by copolymerization of at least: an apolar monomer (ma) with the following formula (I), where u=0 or I, w=0 or I, E=-0- or —NH(Z)—, or —O—CO—, or —NH—CO— or —CO—NH—, wherein Z is H or an alkyl group, and G is a group selected among an alkyl, an aromatic ring and an arylalkyl; and a polar monomer (mb) selected among those of the following formula (II), wherein t=0 or I, Q is selected among the oxygen atom and the —NR?— group, wherein R? is selected among a hydrogen atom and hydrocarbon chains, and R is a hydrocarbon chain substituted by at least one quaternary ammonium group and optionally one or more hydroxyl groups. The invention also relates to the use of such a copolymer as a detergent additive in a liquid fuel of an internal combustion engine.

Abstract: The use of one or more copolymers as a detergent additive in a liquid fuel for internal combustion engines. The copolymer includes at least one repeat unit having an ester of alkyl or alkyl ester function and a repeat unit including at least one heterocycle containing at least six atoms, including at least one nitrogen atom, and at least one functionalization by at least one oxygen atom.

Abstract: The use of one or more copolymers as a detergent additive in a liquid fuel for internal combustion engines. The copolymer includes at least one repeat unit having an ester of alkyl or alkyl ester function and a repeat unit containing a nitrile group.

Abstract: The use of one or more copolymers as a detergent additive in a liquid fuel for internal combustion engines. The copolymer includes at least one repeat unit having an ester of alkyl or alkyl ester function and a repeat unit containing a diazotized hydrocarbon group. Also, specific copolymers including at least one repeat unit having an ester function of alkyl or alkyl ester function and a repeat unit containing a triazotized hydrocarbon group.

Abstract: The use of a copolymer as a detergent additive in an internal combustion engine liquid fuel. The copolymer obtained by copolymerization of at least: an alkyl acrylate or alkyl methacrylate monomer ma and a styrenic monomer mb chosen from styrenics derivatives, the aromatic ring of which is substituted by at least one group R or at least one linear or branched C1 to C12 hydrocarbon-based chain substituted by at least one group R being chosen from: the hydroxyl group, a group —OR?, a group —(OCyH2yO)f—H, a group —(OCyH2yO)f—R?, a group —O—(CO)—R?, and a group —(CO)—OR?, where y is an integer ranging from 2 to 8, f is an integer ranging from 1 to 10, and R? is chosen from C1 to C24 alkyl chains. Also, a process for maintaining the cleanliness of and/or for cleaning at least one of the internal parts of an internal combustion engine.

Abstract: A block copolymer including: at least one block A of following formula (I): in which p is an integer ranging from 2 to 100, R1? is selected from hydrogen and the methyl group, R2? is chosen from C1 to C34 hydrocarbon-based chains, at least one block B of following formula (II): in which n is an integer ranging from 2 to 40, R1 is chosen from hydrogen and the methyl group, Z is chosen from the oxygen atom and the group —NR?— with R? being chosen from a hydrogen atom and C1 to C12 hydrocarbon-based chains, G is a C1 to C34 hydrocarbon-based chain substituted by at least one quaternary ammonium group and optionally one or more hydroxyl groups. Also, the use of such a block copolymer as detergent additive in an internal combustion engine liquid fuel.

Abstract: The use of a block copolymer as detergent additive in an internal combustion engine liquid fuel, including: at least one block A of formula (I): wherein n is an integer ranging from 2 to 100, R1 is chosen from hydrogen and the methyl group, R2 is chosen from C1 to C34 hydrocarbon-based chains, at least one block B of formula (II): wherein p is an integer between 2 and 40, G is chosen from: o an aryl group, and o an aryl group substituted by at least one group chosen from: a group R, a C1 to C12 hydrocarbon-based chain, and a C1 to C12 hydrocarbon-based chain substituted by at least one group R, being chosen from the group consisting of: the groups including from 1 to 40 atoms chosen from C, N, and optionally O, including at least one primary, secondary or tertiary amine function, and quaternary ammoniums.

Abstract: The invention relates to a block copolymer and the use thereof as a cold resistance additive of a fuel or combustible. The block copolymer comprises: (i) a block A consisting of a chain of structural motifs derived from at least one ?,?-unsaturated alkyl methacrylate or acrylate monomer; and (ii) a block B consisting of a chain of structural motifs derived from at least one ?,?-unsaturated monomer containing at least one aromatic ring. The invention also relates to an additive concentrate containing such a copolymer and to the use thereof as a TLF booster and, advantageously, as an anti-sedimentation additive.

Abstract: The invention relates to a block copolymer and the use thereof as a cold resistance additive of a fuel or combustible. The block copolymer comprises: (i) a block A consisting of a chain of structural motifs derived from at least one ?,?-unsaturated alkyl methacrylate or acrylate monomer; and (ii) a block B consisting of a chain of structural motifs derived from at least one ?,?-unsaturated monomer selected from styrene derivatives, the aromatic ring of which is substituted by at least one group R selected from the groups: C1 to C24 alkyl esters, and preferably acyclic linear or branched C1 to C12 hydrocarbonated chains, said chain being substituted by at least one group containing a quaternary ammonium salt. The invention also relates to an additive concentrate containing such a copolymer and to the use thereof as an anti-sedimentation additive, and advantageously, as a TLF booster additive.