USE OF SPECIFIC COPOLYMERS FOR IMPROVING THE COLD PROPERTIES OF FUELS OR COMBUSTIBLES

    公开(公告)号:US20210348073A1

    公开(公告)日:2021-11-11

    申请号:US17272049

    申请日:2019-08-23

    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).

    USE OF A DETERGENT ADDITIVE FOR FUEL
    2.
    发明申请

    公开(公告)号:US20190153343A1

    公开(公告)日:2019-05-23

    申请号:US16065319

    申请日:2016-12-19

    Inventor: Julie PREVOST

    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.

    BITUMEN/POLYMER COMPOSITION HAVING IMPROVED MECHANICAL PROPERTIES

    公开(公告)号:US20210047514A1

    公开(公告)日:2021-02-18

    申请号:US17052474

    申请日:2019-04-30

    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.

    COPOLYMER SUITABLE FOR USE AS A DETERGENT ADDITIVE FOR FUEL

    公开(公告)号:US20190169516A1

    公开(公告)日:2019-06-06

    申请号:US16319788

    申请日:2017-07-20

    Inventor: Julie PREVOST

    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.

    COPOLYMER THAT CAN BE USED AS DETERGENT ADDITIVE FOR FUEL

    公开(公告)号:US20180265793A1

    公开(公告)日:2018-09-20

    申请号:US15761400

    申请日:2016-09-15

    Inventor: Julie PREVOST

    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.

    DETERGENT ADDITIVE FOR FUEL
    10.
    发明申请

    公开(公告)号:US20180273861A1

    公开(公告)日:2018-09-27

    申请号:US15761362

    申请日:2016-09-15

    Inventor: Julie PREVOST

    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.

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