申请人:EXXON CHEMICAL PATENTS INC.
公开号:EP0368548A1
公开(公告)日:1990-05-16
The present invention is directed to a dispersant additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.5 (e.g., from about 1 to 4) monocarboxylic acid producing moieties (preferably acid or ester moieties) per polyolefin molecule, (B) an amido-amine or thioamido-amine characterized by being a reaction product of at least a polyamine and an alpha, beta-unsaturated compound of the formula:
wherein X is sulfur or oxygen, Y is -OR4, -SR4, or -NR4 (R5), and R1, R2, R3, R4 and R5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl.
本发明涉及一种分散剂添加剂,该添加剂包含至少一种以下物质的加合物:(A) 每聚烯烃分子中至少有 0.5 个(例如约 1 至 4 个)产生单羧酸的分子(最好是酸或酯分子)取代的平均分子量为 300 至 10,000 的聚烯烃;(B) 氨基胺或硫代氨基胺,其特征在于该氨基胺至少是一种聚胺和α、β-不饱和式化合物的反应产物:
其中 X 为硫或氧,Y 为-OR4、-SR4 或-NR4 (R5),R1、R2、R3、R4 和 R5 相同或不同,且为氢或取代或未取代的烃基。