Patent · US Expired

Middle distillate compositions with improved low temperature properties

US4863486A · kind A · utility

20Cited by
17References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 20, 1985
Grant dateSep 5, 1989
Priority date
Expiry dateFeb 20, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10L1/2383
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Polymers or copolymers containing an n-alkyl ester of a mono-ethylenically unsaturated C.sub.4 to C.sub.8 mono- or dicarboxylic acid wherein the average number of carbon atoms in the n-alkyl groups is from 12 to 14, and which contain no more than 10 wt. % of comonomer containing alkyl groups containing more than 14 carbon atoms and preferably no more than 20 wt. % of comonomer in which the alkyl group contains fewer than 12 carbon atoms are low temperature flow improvers for distillate fuels improving flow and filterability as well as lowering cloud point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.