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    • 4. 发明授权
    • Hydroxylalkyl hydroxy-aromatic condensation products as fuel and
lubricant additives
    • 羟基烷基羟基 - 芳族缩合产物作为燃料和润滑剂添加剂
    • US4343740A
    • 1982-08-10
    • US279399
    • 1981-07-01
    • Charles P. Bryant
    • Charles P. Bryant
    • C08F8/00C10L1/18C10L1/22C10M159/12C07D207/00
    • C10M159/12C08F8/00C10L1/1817C10L1/221
    • Condensation products made by reacting an .alpha.-hydroxyalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The total number of carbon atoms in the non-fused hydrocarbyl substituents is at least about 7 while the .alpha.-hydroxyalkyl group contains from 1 to about 36 carbons and the olefinic acid or nitrile reactant usually contains 2 to about 40 carbon atoms. Products made from hydroxymethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic acid derivatives such as maleic anhydride are particularly useful. Similarly useful post-treated products can be made from these condensation products by further reaction with alcohols, amines, metal salts or metals.
    • 通过使具有至少一个非稠合烃基取代基的α-羟基烷基羟基 - 芳族化合物与至少一种烯属腈,羧酸或羧酸衍生物反应制得的缩合产物可用作燃料和润滑剂的添加剂。 非稠合烃基取代基中的碳原子总数为至少约7,而α-羟基烷基含有1至约36个碳,并且烯属酸或腈反应物通常含有2至约40个碳原子。 由羟甲基烷基取代的酚和α,β-烯烃酸衍生物如马来酸酐制成的产品是特别有用的。 类似地,有用的后处理产物可以通过与醇,胺,金属盐或金属的进一步反应从这些缩合产物制备。
    • 9. 发明授权
    • Nitrogen-containing esters and lubricants containing them
    • 含氮酯和含有它们的润滑剂
    • US4604221A
    • 1986-08-05
    • US718837
    • 1985-04-03
    • Charles P. BryantHarold M. Gerdes
    • Charles P. BryantHarold M. Gerdes
    • C08F8/32C08F226/02
    • C08F8/32
    • A nitrogen-containing ester of a carboxy-containing interpolymer which is particularly useful as a pour point depressant is disclosed. The interpolymer has a reduced specific viscosity of from about 0.05 to about 1 and is derived from at least two monomers, one of said monomers being a low molecular weight aliphatic olefin or styrene and the other of said monomers being an alpha, beta-unsaturated aliphatic acid, anhydride or ester thereof. The nitrogen-containing ester is substantially free of titratable acidity and is characterized by the presence within its polymeric structure of at least one of each of the following groups which are derived from the carboxy groups of said interpolymer:(A) a carboxylic ester group, said carboxylic ester group having at least eight aliphatic carbon atoms in the ester radical, and(B) a carbonyl-polyamino group derived from a polyamino compound having one primary or secondary amino group and at least one monofunctional amino group,wherein the molar ratio of carboxy groups of said interpolymer esterified to provide (A) to carboxy groups of said interpolymer neutralized to provide (B) is in the range of about 85:15 to about 99:1. Lubricant compositions and additive concentrates comprising the foregoing nitrogen-containing ester as well as a process for making such ester are also disclosed.
    • 公开了一种特别可用作倾点下降剂的含羧基互聚物的含氮酯。 互聚物具有约0.05至约1的降低的比粘度,并且衍生自至少两种单体,所述单体之一是低分子量脂族烯烃或苯乙烯,所述单体中的另一种为α,β-不饱和脂族 酸,酸酐或其酯。 含氮酯基本上不含可滴定的酸度,其特征在于在其聚合物结构内存在衍生自所述共聚体的羧基的以下各个基团中的至少一个:(A)羧酸酯基, 所述羧酸酯基在酯基中具有至少8个脂族碳原子,和(B)衍生自具有一个伯或仲氨基和至少一个单官能氨基的聚氨基化合物的羰基 - 聚氨基,其中, 所述互聚物的羧基被酯化以提供(A)所述互聚物的被中和以提供(B)的羧基在约85:15至约99:1的范围内。 还公开了包含前述含氮酯的润滑剂组合物和添加剂浓缩物以及制备这种酯的方法。