Abstract:
A tertiary amino alcohol, being useful as an emulsifier, is defined by the formula (1) or (2):
where R is a C₂ to C₂₄ straight-chain or branched alkylene group, an alicyclic alkylene group, an aralkylene group or
(where p is 0 or a positive integer and q is a positive integer); R' is a C₁ to C₂₄ straight-chain or branched alkyl group or an aralkyl group and n is a positive integer of 2 to 50.
Abstract:
Lubricants having antiwear, corrosion inhibition and antioxidant performance appropriate to modern oil requirements with reduced or zero amounts of zinc and phosphorous and without the need for large amounts and/or expensive forms of antioxidant comprise 5 to 500 parts per million by weight (ppm) of added copper present in oil-soluble form, one or more added oil-soluble sulphur-containing compounds and a bearing corrosion inhibitor.
Abstract:
Disclosed is a magnetic dendrimer compound and a method for preparing the magnetic dendrimer compound, the molecular formula of which is shown in formula (I): “(CH 2 ) 3 N (2 n+1 -1) R 1 (2 n+2 -2) R 2 (2 n+1 ) (I). In this formula, “ indicates magnetic particles coated with SiO 2 on a surface thereof, the magnetic particles having been modified by a silane coupling agent; (CH 2 ) 3 N (2 n+1 -1 )R 1 (2 n+2 -2) is a dendritic group, and R 2 (2 n+1 ) is a lipophilic group, with 0‰¤n‰¤100. Further disclosed is a lubricant comprising the magnetic dendrimer compound.
Abstract translation:本发明公开了一种磁性树枝状大分子化合物及其制备方法,其分子式如式(I)所示:“(CH 2)3 N 2 -2)R 2(2 n + 1)(I)。 在该式中,“表示在其表面上涂覆有SiO 2的磁性颗粒,该磁性颗粒已经被硅烷偶联剂改性; (CH 2)3 N(2 n + 1 -1)R 1(2 n + 2 -2)为树枝状基团,R 2(2 n + 1)为亲油基团,0‰¤‰¤¤ 100。 还公开了包含磁性树枝状大分子化合物的润滑剂。
Abstract:
The disclosed invention relates to a dispersant composition comprising at least one block derived from (i) a polyester of a hydroxy substituted carboxylic acid and at least one block derived from (ii) a polyalkylene glycol terminated by a amine group or a hydroxyl group. The invention also provides lubricating compositions containing the described dispersant as well as methods of making and using the described dispersant, including method of making the dispersant, methods of lubricating an engine with a lubricant containing the described dispersant, and methods of reducing sludge formation in an engine.
Abstract:
Disclosed is a magnetic dendrimer compound and a method for preparing the magnetic dendrimer compound, the molecular formula of which is shown in formula (I): Γ(CH 2 ) 3 N (2 n+1 -1) R 1 (2 n+2 -2) R 2 (2 n+1 ) (I). In this formula, Γ indicates magnetic particles coated with SiO 2 on a surface thereof, the magnetic particles having been modified by a silane coupling agent; (CH 2 ) 3 N (2 n+1 -1 )R 1 (2 n+2 -2) is a dendritic group, and R 2 (2 n+1 ) is a lipophilic group, with 0≤n≤100. Further disclosed is a lubricant comprising the magnetic dendrimer compound.
Abstract translation:公开了一种磁性树枝状大分子化合物及其制备方法,其分子式如式(I)所示:“(CH 2)3 N(2 n + 1 -1)R 1(2 n + 2 -2)R 2(2 n + 1)(I)。 在该式中,“表示在其表面上涂覆有SiO 2的磁性颗粒,已经通过硅烷偶联剂改性的磁性颗粒; (CH 2)3 N(2 n + 1 -1)R 1(2 n + 2 -2)是树枝状基团,R 2(2 n + 1)是亲脂基团,0‰‰‰¤ 100。 还公开了包含磁性树枝状聚合物化合物的润滑剂。
Abstract:
Polytetrahydrobenzoxazines and bistetrahydrobenzoxazines obtainable by (A) reaction of at least one diamine of formula H 2 N-A-NH 2 with a C 1 to C 12 aldehyde and a C 1 to C 8 alkanol at 20 to 80°C with elimination and removal of water, (B) reaction of the condensation product from (A) with a phenol which carries a long-chain substituent, at 30 to 120°C, and optionally (C) heating of the reaction product from (B) at 125 to 280°C. The resultant polytetrahydrobenzoxazines and bistetrahydrobenzoxazines are suitable as fuel or lubricant additives, more particularly as detergent additives for diesel fuels.
Abstract:
Morpholine derivatives useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials, and lubricating oil compositions containing such compounds.
Abstract:
Disclosed are compounds represented by structural formula (I): methods of producing compounds represented by structural formula (I), and their use in inhibiting oxidation in an oxidizable material.