Infineum | Date: 2016-12-05
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.
Infineum | Date: 2016-11-28
The present invention is a polymer having structural units, units of formula I, units of formula II and units of either formula IIIa or formula IIIb: The polymer improves the low-temperature properties of fuel oils from petroleum sources and especially from vegetable or animal sources.
Infineum | Date: 2016-08-24
University of Massachusetts Amherst and Infineum | Date: 2016-11-30
A method for producing highly reactive polybutenes wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same.
Infineum | Date: 2016-06-30
An additive package for a two- or four-stroke marine engine lubricant comprises an oil of lubricating viscosity, a salicylate detergent and a sulfonate detergent in a ratio of 90/10 to 10/90 (expressed as mmol of soap), and 1 to 10 mass % of a hydrocarbylphenol-aldehyde condensate.
Infineum | Date: 2016-01-27
The use of a polymeric friction modifier as an additive in an effective minor amount in a lubricating oil composition to reduce and/or inhibit the corrosion of the nonferrous metal containing engine components during operation of the engine.
Infineum | Date: 2016-06-22
Trunk piston marine engine crankcase lubrication is effected by a composition that includes a nitrogen-containing ashless dispersant additive component in an amount providing in the range of 50 to 150 ppm N by mass to diminish loss of BN and diminish increase of viscosity during use of the composition without adversely affecting deposits performance.
Infineum | Date: 2016-05-11
Trunk piston marine engine crankcase lubrication is effected by a composition that includes a zinc dihydrocarbyl dithiophosphoric acid salt additive component in an amount providing in the range of 400 to 700 or to 1000 ppm P by mass to diminish loss ofBN and diminish increase of viscosity during use of the composition.
Infineum | Date: 2016-11-16
An additive composition comprises a polymer (A) and a condensation product (B). Polymer (A) comprises the following monomer components:(i) one or more compounds of formula (I)_(1) is hydrogen or CH_(3); and R_(2) is 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)_(1) has the meaning above and wherein R_(3) is hydrogen or C_(1) - C_(22) alkyl; each R_(4) is independently hydrogen or C_(1) - C_(22) alkyl; R_(5) is 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)_(6), R_(7), R_(8), R_(9) and R_(10) are 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_(2), or wherein two or more of R_(6), R_(7), R_(8), R_(9) and R_(10) may together form an aliphatic or aromatic ring system, which ring system may be substituted or unsubstituted. Condensation product (B) comprises the product formed by the reaction of an aliphatic aldehyde or ketone, or a reactive equivalent, with a substituted phenol or mixture of substituted phenols.
Infineum | Date: 2016-06-08
A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-subsituted succinic acid anhydride, preferably made by halogen- or radical-assisted functionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.