Abstract:
PROBLEM TO BE SOLVED: To provide a fuel composition containing a major quantity of gasoline having a maximum sulfur content of 150 ppm by weight, and a minor quantity of at least one gasoline additive having a detergent effect or a valve seat wear-inhibiting effect.SOLUTION: A gasoline additive comprises at least one hydrophobic hydrocarbon radical having a number average molecular weight (MN) of 85 to 20,000, and at least one polar group. The fuel composition further contains at least one low alkanol at a moiety of about 5 to 75 percent by volume.
Abstract:
PROBLEM TO BE SOLVED: To provide polyisobutene amine which is suitable for blending in a fuel for an Otto engine as a cleaning agent, reduces adhesion to valves and improves compatibility of a cleaning agent with a carrier oil and compatibility in a fuel composition containing mineral fuel ingredients and 1-4C alkanol.SOLUTION: A polybutene amine has a formula of RCH-NRR, where Ris a polyisobutyl group having a number average molecular weight Mof 600 to 770 originated from isobutene and n-butene of up to 20 mass% and Rand Rare independently H, a 1-18C alkyl group, a 2-18C alkenyl group, a 4-18C cycloalkenyl group, a 1-18C alkylaryl group, a hydroxy-(1-18C alkyl) group, a poly(oxyalkyl) group, a polyalkylene polyamine group or a polyalkylene imine group, or Rand R, together with the nitrogen atom to which the group is bonded, constitute a heterocyclic ring.
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel composition containing a large quantity of gasoline fuel having a maximum sulfur content of 150 ppm by mass, and a small quantity of at least one gasoline fuel additive having a cleaning effect or an effect to prevent seat valve abrasion. SOLUTION: The gasoline fuel additive has at least one hydrophobic hydrocarbon group having a number average molecular weight (MN) of 85 to 20,000 and at least one polar unit. The fuel composition contains at least one lower alkanol by about 5 to 75 vol.%. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
The invention relates to the use of certain ethers as activity-enhancers for water-soluble biocides in homopolar hydrocarbons. The invention also relates to the use of at least one water-soluble biocide combined with at least one of said ethers for controlling micro-organisms and/or for reducing or preventing the multiplication of micro-organisms in essentially water-immiscible hydrocarbons. The invention also relates to additive compositions and hydrocarbon compositions comprising such ethers and biocides, and to a method for controlling micro-organisms and/or for reducing or preventing the multiplication of micro-organisms in hydrocarbons, according to which such a biocide and at least such an ether are added to the hydrocarbon.
Abstract:
Formulación de polialquenamina que comprende, al menos, una polialquenamina en un disolvente, en donde la formulación presenta, al menos, una de las siguientes características para bajas temperaturas: a) punto de opacidad (cloud point) inferior o igual a -28ºC (determinado según DIN ISO 3015 o DIN EN 23015) b) punto de solidificación (pour point) inferior o igual a -27ºC (determinado según DIN ISO 3016); y/o c) precipitaciones cristalinas menores tras el almacenamiento por un periodo de 1 día a 6 semanas a una temperatura de, aproximadamente, -35ºC; en donde el disolvente se selecciona entre L1) al menos, una n- o iso-parafina C10-C14, y L2) al menos, un n- o iso-nafteno C10-C14, y en donde L1 y L2 están presentes en una proporción de mezcla de 10:90 a 90:10.
Abstract:
Poliisobutenaminas de la fórmula general R1-CH2-NR2R3, en la que R1 representa un radical poliisobutilo derivado de isobuteno y en hasta 20 % en peso de n-buteno, con un promedio numérico de peso molecular Mn de 600 a 770 y R2 y R3 representan, independientemente el uno del otro, hidrógeno, un radical alquilo-C1-C18, un radical alquenilo-C2-C18, un radical cicloalquilo-C4-C18, un radical alquil-C1-C18-arilo, un radical hidroxi-alquilo-C1-C18, un radical poli(oxialquilo), un radical polialquilenpoliamina o un radical polialquilenimina, o bien, junto con el átomo de nitrógeno al que están unidos, representan un anillo heterocíclico, son aptas como detergentes en carburantes Otto, reducen el pegoteo de las válvulas y mejoran la compatibilidad de los detergentes con aceites portadores, así como la compatibilidad en composiciones de carburantes que contienen una porción mineral de carburante y alcanoles-C1-C4.