润滑科技信息平台

Fuel additive and fuel composition containing the same

专利摘要

The invention provides the use of a poly(hydroxy-carboxylic acid)amide or -ester derivative of general formula I:wherein R is the residue of an amine, an aminoalcohol or a polyol linked to the or each poly(hydroxycarboxylic acid) via an amide or ester linkage; R1 is hydrogen or optionally substituted hydrocarbyl group containing up to 50 carbon atoms; A is an optionally substituted hydrocarbyl group; n is from 1-100, preferably 1-10 and p is from 1-5, as a fuel additive acting as a detergent and as a lubricity additive in fuel compositions.Moreover, the invention provides a fuel oil composition comprising of a major amount of a fuel oil, and a minor amount of an the additive as well as a additive concentration for use in a fuel oil composition. ......

基本信息

专利类型:
发明专利
申请/专利号:
US09/453286
申请日期:
2000-08-18
专利申请人:
英菲诺姆国际有限公司
分类号:
["C10L1/19","C10L1/198","C10L1/238","C10L1/224","C10L1/10","C10L10/00","C10L1/222","C10L10/04","C10L1/18","C10L1/192","C10L1/22","C10L1/234","C10L10/08","C10L10/18"]
发明/设计人:
LIN, JIAN
权利要求: What is claimed is:1. A fuel oil composition consisting essentially of a major amount of a fuel oil selected from gasoline and diesel fuel and a minor amount of an additive in the form of a poly(hydroxycarboxylic acid) amide or ester derivative of the formula ##STR3##wherein R is the residue of an amine, an aminoalcohol or a polyol linked to the or each poly(hydroxycarboxylic acid) via an amide or ester linkage; R.sup.1 is hydrogen or optionally substituted hydrocarbyl group containing up to 50 carbon atoms; A is an optionally substituted hydrocarbyl group; n is from 1-100, and p is from 2-5.2. A fuel oil composition as claimed in claim 1, wherein the "minor amount" is less than 10% w of the composition.3. A fuel oil composition as claimed in claim 1, wherein the poly(hydroxycarboxylic acid)amide or ester derivative is present in an amount in the range 15 to 1000 ppmw of the fuel composition.4. A fuel oil composition as claimed in claim 1, wherein the fuel oil is diesel fuel and has an initial distillation temperature of about 160.degree. C. and a 90% point of 290-360.degree. C.5. A fuel oil composition as claimed in claim 1, wherein the fuel oil is diesel oil and has an initial distillation temperature of about 160.degree. C. and a 90% point of 290-360.degree. C., and a sulphur concentration below 500 ppmw.