Method of improving the compatibility of a fuel additive composition containing a mannich condensation product
申请人:——
公开号:US20040000089A1
公开(公告)日:2004-01-01
A method of improving the compatibility of a fuel additive composition comprising blending together the following components:
a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound, (2) an amine having the formula:
1
wherein A is CH or nitrogen, R
1
, R
2
, R
3
are independently hydrogen or lower alkyl of 1 to about 6 carbon atoms and each R
2
and R
3
is independently selected in each —CR
2
R
3
— unit, and x is an integer from 1 to about 6;
and (3) an aldehyde, wherein the respective molar ratio of reactants (1), (2), and (3) is 1:0.1-2:0.1-2;
b) a hydrocarbyl-terminated poly(oxyalkylene) monool;
c) a carboxylic acid as represented by the formula:
R
4
(COOH)
y
wherein R
4
represents a hydrocarbyl group having about 2 to about 50 carbon atoms, and y represents an integer of 1 to about 4; and
d) an anhydride selected from the group consisting of succinic, glutaric, phthalic, and alkyl anhydrides.
一种改善燃料添加剂组合物的相容性的方法,包括混合以下组分:a)高分子量烷基取代的羟基芳香化合物的Mannich缩合物,其中该芳香化合物与1个具有以下公式的胺反应:1其中A是CH或氮,R1、R2、R3分别独立地表示氢或1到约6个碳原子的低级烷基,每个R2和R3在每个—CR2R3—单元中独立选择,x是1到约6的整数;以及1个醛,其中反应物(1)、(2)和(3)的各自摩尔比为1:0.1-2:0.1-2;b)烃基终止的聚(氧烷基)单醇;c)由以下公式表示的羧酸:R4(COOH)y其中R4表示具有约2到约50个碳原子的烃基,y表示1到约4的整数;以及d)从琥珀酸、戊二酸、邻苯二甲酸和烷基酸酐组成的羧酸酐。