New Additive Packages for Gasoline Fuels

10:

• An additive package, comprising:
• at least one detergent additive selected from the group consisting of
• a) polyisobutylene amine with Mn 500 to 1500 g/mol,
• b) hydrocarbyl substituted primary amine with Mn 140 to 255 g/mol,
• c) a Mannich reaction product resulting from a reaction of a substituted phenol or cresol with formaldehyde and a primary or secondary amine,
• d) an N-quaternary ammonium salt, and
• e) a reaction product of a hydrocarbyl-substituted acylating agent and a compound comprising at least one primary or secondary amine group;
• at least one further additive selected from the group consisting of carrier oils, cold flow improvers, lubricity improvers, corrosion inhibitors, demulsifiers, dehazers, antifoams, octane number improver, antioxidants, metal deactivators, and solvents;
• and
• at least one copolymer obtainable by:
• (I) copolymerizing
• (A) at least one ethylenically unsaturated dicarboxylic acid or a derivative thereof,
• (B) at least one α-olefin having from at least 12 up to and including 30 carbon atoms,
• (C) optionally, at least one further aliphatic or cycloaliphatic olefin which has at least 4 carbon atoms and is different than (B), and
• (D) optionally, one or more further copolymerizable monomers other than monomers (A), (B), and (C), selected from the group consisting of
• (Da) vinyl esters,
• (Db) vinyl ethers,
• (Dc) (meth)acrylic esters of alcohols having at least 5 carbon atoms,
• (Dd) allyl alcohols or ethers thereof,
• (De) N-vinyl compounds selected from the group consisting of vinyl compounds of heterocycles containing at least one nitrogen atom, N-vinylamides, and N-vinyllactams,
• (Df) ethylenically unsaturated aromatics,
• (Dg) α,β-ethylenically unsaturated nitriles,
• (Dh) (meth)acrylamides, and
• (Di) allylamines,
• to obtain a first intermediate copolymer;
• (II) reacting the first intermediate copolymer obtainable from (I) with at least one amino compound of formula (I)
• wherein
• R is H or a group —R1—X—H, wherein R1 is a divalent alkylene group comprising 2 to 6 carbon atoms, optionally interrupted by O, N—H, and/or NR4 groups, and/or optionally bearing at least one further substituent,
• R2 and R3 are independently of another C1- to C20-alkyl, C6- to C10-aryl, C5- to C12-cycloalkyl, or C7- to C11-aralkyl, wherein R2 and R3 together with the nitrogen atom may form a cycloaliphatic or aromatic ring in which further hetero atoms may be incorporated,
• X is O, NH, or NR4, and
• R4 is C1- to C4-alkyl or C6- to C10-aryl,
• to obtain a second intermediate copolymer;
• and
• (III) optionally, partly or fully hydrolyzing anhydride functionalities present in the second intermediate copolymer obtained from (II), to obtain the copolymer.