Infineum International Limited

Infineon International Limited

Giles W Theaker

Kenneth Lewtas

Peter Scott

Christopher J Kay

Peter M Wright

Dhanesh Gordon Goberdhan

Sally A Hopkins

Carl Waterson

Peter Wright

Christopher Kay

Benjamin D Hornby

Ben Hornby

Sally Hopkins

An additive composition containing a polymer (A) and an anti-static additive (B). The polymer (A) has the following monomer components: (i) one or more compounds of formula (I) wherein Ris hydrogen or CH; and Ris a hydrocarbon group having 6 to 30 carbon atoms and is a straight-chain or branched-chain alkyl group, or an aliphatic or aromatic cyclic group;(ii) one or more compounds of formula (II) wherein Rhas the meaning above and wherein Ris hydrogen or C-Calkyl; each Ris independently hydrogen or C-Calkyl; Ris hydrogen, a substituted or unsubstituted aliphatic or aromatic cyclic group, or a substituted or unsubstituted straight-chain or branched-chain alkyl group having 1 to 22 carbon atoms; n=0 or an integer from 1 to 22; and m is an integer from 1 to 30; and(iii) one or more compounds of formula (III) wherein R, R, R, Rand Rare each independently hydrogen, a straight-chain or branched-chain alkyl group having 1 to 20 carbon atoms which may be substituted or unsubstituted, hydroxyl, NH, or wherein two or more of R, R, R, Rand Rmay together form an aliphatic or aromatic ring system, which ring system may be substituted or unsubstituted. The anti-static additive (B) is (iv) an olefin polysulfone and (v) a polymeric polyamine reaction product of epichlorohydrin and an aliphatic primary monoamine or an N-aliphatic hydrocarbyl alkylene diamine, or the sulfonic acid salt of the polymeric polyamine reaction product. The weight:weight ratio of the polymer (A) to the anti-static additive (B) in the additive composition is from about 1:1 to about 500:1.

Additive compositions and to fuel oils

An additive composition comprises a polymer (A) and a condensation product (B) wherein Polymer (A) comprises the following monomer components:

Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.

Additives for fuels and oils comprising functionalised diblock copolymers

Concentrates containing specific functionalized diblock copolymers serve as effective additives for improving the cold flow behavior of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen.

Additives for fuels and oils comprising Functionalised diblock copolmers

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Giles W Theaker