Copolymer suitable for use as a detergent additive for fuel
AssigneeTotal Marketing Services
InventorJulie Prevost
Life of this patent
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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.
Claims13
A fuel composition comprising:
- (1) a fuel derived from one or more sources chosen from the group consisting of mineral, animal, plant and synthetic sources;
- and
- (2) from 10 to 5000 ppm of one or more copolymers obtained by copolymerization of at least:
- non-polar monomer (ma) corresponding to the following formula (I)
- where:
- u=0 or 1,
- w=0 or 1,
- E=—O— or —NH(Z)—, or —O—CO—, or —NH—CO— or —CO—NH—, with Z representing H or a C1-C6 alkyl group, it being understood that when E=—O—CO— E is connected to the vinyl carbon by the oxygen atom, and
- G represents a group selected from the group consisting of (i) a C4-C34 alkyl, (ii) an aromatic ring, and (iii) an aralkyl comprising at least one aromatic ring and at least one C1-C34 alkyl group, and
- a polar monomer (mb) chosen from those of the following formula (II):
- where:
- t=0 or 1,
- Q is chosen from an oxygen atom and a group —NR′— with R′ being chosen from a hydrogen atom and C1 to C12 hydrocarbon-based chains, and
- R is a C1 to C34 hydrocarbon-based chain substituted with at least one quaternary ammonium group and optionally one or more hydroxyl groups.
A concentrate for fuel comprising from 5 to 80% of one or more copolymers obtained to copolymerization of at least:
- a non-polar monomer (ma) corresponding to the following formula (I)
- where:
- u=0 or 1,
- w=0 or 1,
- E=—O— or —NH(Z)—, or —O—CO—, or —NH—CO— or —CO—NH—, with Z representing H or a C1-C6 alkyl group, it being understood that when E=—O—CO— E is connected to the vinyl carbon by the oxygen atom, and
- G represents a group selected from the group consisting of (i) a C4-C34 alkyl, (ii) an aromatic ring, and (iii) an aralkyl comprising at least one aromatic ring and at least one C1-C34 alkyl group, and
- a polar monomer (mb) chosen from those of the following formula (II):
- where:
- t=0 or 1,
- Q is chosen from an oxygen atom and a group —NR′— with R′ being chosen from a hydrogen atom and C1 to C12 hydrocarbon-based chains, and
- R is a C1 to C34 hydrocarbon-based chain substituted with at least one quaternary ammonium group and optionally one or more hydroxyl groups,
- wherein the copolymer is in mixture.
Dependencies are inferred from the claim text.