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Linden, NJ, United States
Linden, NJ, United States

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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.


Patent
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.


Patent
Infineum | Date: 2016-08-24

A lubricating oil composition which contains, or is made by admixing:


A lubricant additive concentrate containing (i) dispersant that is the polybutenyl succinimide reaction product of a polyamine and polybutenyl succinic anhydride (PIBSA) derived from polybutene having a number average molecular weight (M_(n)) of from about 1300 to about 2500 daltons and a terminal vinylidene content of at least about 50% and maleic anhydride via an ene maleation process; (ii) overbased magnesium colloidal detergent having a total base number (TBN) of from about 300 to about 900 mg KOH/g; and (iii) organic friction modifier selected from hydroxyalkyl alkyl amines of C_(14 )to C_(24 )hydrocarbons, at least one hydroxyalkyl alkyl ether amines of C_(13 )to C_(24 )hydrocarbons, at least one alkyl ester amine derived from triethanol amine having a C_(13 )to C_(24 )hydrocarbyl substituent, at least one non-basic, fatty acid amide, or a mixture thereof; wherein the combined mass % of dispersant (i) and overbased magnesium colloidal detergent (ii) in said concentrate is from about 15 to about 50 mass %: the mass ratio of (i):(ii) is from about 1:1 to about 6:1; and the concentrate contains from about 2 to about 10 mass % of organic friction modifier (iii); the remainder of the concentrate being composed of base oil and additives other than dispersant (i), overbased magnesium colloidal detergent (ii) and organic friction modifier (iii).


Patent
Infineum | Date: 2015-12-09

A viscosity index improver containing, in diluent oil, one or more optionally functionalized linear block copolymers having at least one block derived from alkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (c_(h)*), in mass %, for the linear block copolymers in the diluent oil; and ester base stock and/or at least one star (or radial) polymer, the star polymer being present in an amount such that the c/c_(h)* value of the star polymer in the concentrate falls within the range of from 0.01 to about 1.6, wherein c is the concentration in mass % of star polymer in the concentrate and c_(h)* is the critical overlap concentration in mass % for the star polymer in the diluent oil used to form the concentrate.


Patent
Infineum | Date: 2017-07-12

A viscosity index improver containing, in diluent oil, one or more optionally functionalized linear block copolymers having at least one block derived from alkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (c_(h)^(*)), in mass%, for the linear block copolymers in the diluent oil; and ester base stock and/or at least one star (or radial) polymer, the star polymer being present in an amount such that the c/c_(h)^(*) value of the star polymer in the concentrate falls within the range of from 0.01 to about 1.6, wherein c is the concentration in mass% of star polymer in the concentrate and c_(h)^(*) is the critical overlap concentration in mass% for the star polymer in the diluent oil used to form the concentrate.


Patent
Infineum | Date: 2017-07-19

The invention provides the use of an overbased metal detergent in which two or more different surfactant groups, one being a hydrocarbyl-substituted hydroxybenzoate and another being a sulfonate group, are incorporated therein during its overbasing, and which has been manufactured in the presence of at least one amide-or ester-based co-surfactant, said use being as an additive in a motor vehicle lubricating oil composition to provide lubricant frictional benefits, exemplified by improved high frequency reciprocating rig performance thereof, and/or improved stability of the overbased detergent in the composition in comparison with an analogous lubricating oil compositions made by admixing said overbased metal detergent and said at least one amide-or ester-based co-surfactant.


Patent
Infineum | Date: 2017-08-02

Sulfurised calcium phenate detergents having a reduced unsulfurised alkyl-substituted phenol content are made by:(A) providing, made from an unsulfurised alkyl-substituted phenol, a sulfurised calcium phenate detergent that, optionally, may have been further reacted with carbon dioxide;(B) adding to the detergent from 1 to 100 mass % , based on the mass of the detergent, of an organic solvent that has a boiling point of above 100C and below the boiling point of the unsulfurised alkyl-substituted phenol; and(C) removing the organic solvent from the detergent thereby to reduce the unsulfurised alkyl-substituted phenol content.


Patent
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.


Patent
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.

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