Oil soluble composition of matter useful as a multifunctional viscosity index modifier for oleaginous impositions comprising reaction product of:
(i) (a) copolymer of ethylene and at least one other alpha-olefin moomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystallinity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of Mw/Mn of less than 2 and a ratio of MzMw of less than 1.8. and wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 7 weight percent ethylene, grafted with (b) ethylenically unsaturated carboxylic acid material having 1 to 2 carboxylic acid groups or anhydride group; and
(ii) at least one of
(a) polyamine having at least two reactive amino groups selected from primary amino groups. secondary amino groups, and mixtures thereof,
(b) polyol,
(c) polyol, and about Csc to about C400 hydrocarbyl substituted carboxylic acid component containing 1 to 2 carboxylic acid groups or anhydride group, and
(d) polyamine having at least two reactive amino groups selected from primary amino groups,secondary amino groups. and mixtures thereof, and about C50 to about C4oc hydrocarbyl substituted carboxylic acid component containing 1 to 2 carboxylic acid groups or anhydride group.
可溶于油的物质组合物,可作为多功能粘度指数调节剂用于含油掺合料,该物质组合物由以下物质的反应产物组成:
(i) (a)
乙烯和至少另一种α-烯烃单体的共聚物,所述共聚物包括分子内异构共聚物链,其中至少含有一个亚甲基单元的可结晶段和至少一个低结晶度的
乙烯-α-烯烃共聚物段、其中所述至少一个可结晶段占所述共聚物链的至少约 10 重量%,并含有至少约 57 重量%的
乙烯,其中所述低结晶度段含有不大于约 53 重量%的
乙烯,并且所述共聚物具有分子量分布,其特征在于 Mw/Mn 比值小于 2 和 MzMw 比值小于 1 中的至少一种。(b) 具有 1 至 2 个
羧酸基团或酸酐基团的
乙烯基不饱和
羧酸材料;以及 (i) 具有 1 至 2 个
羧酸基团或酸酐基团的
乙烯基不饱和
羧酸材料;以及 (ii) 具有 1 至 2 个
羧酸基团或酸酐基团的
乙烯基不饱和
羧酸材料中的至少一种。
(ii) 以下至少一种
(a) 具有至少两个活性
氨基的
多胺,这些
氨基选自
伯胺基、仲胺基及其混合物、
(b) 多元醇、
(c) 多元醇,以及含有 1 至 2 个
羧酸基团或酸酐基团的约 Csc 至约 C400 烃基取代的
羧酸组分,以及
(d) 具有至少两个选自
伯胺基、仲胺基及其混合物的活性
氨基的
多胺,以及含有 1 至 2 个
羧酸基或酸酐基的约 C50 至约 C4oc 烃基取代的
羧酸组分。