Fuel oil additives and additized fuel oils having improved...

Details Fuel oil additives and additized fuel oils having improved... Fuel oil additives and additized fuel oils having improved...

2004-07-21

2009-06-23

Toomer, Cephia D (Department: 1797)

Fuel and related compositions

Liquid fuels

Containing organic -c

C044S408000, C044S418000, C044S459000

Reexamination Certificate

active

07550019

ABSTRACT:
The invention therefore provides an additive for improving the cold flow performance of middle distillates, comprisingI) at least one paraffin dispersant which is a derivative of a fatty amine,II) at least one block copolymer of the structure (AB)nA or (AB)m, whereA represents blocks which are composed of olefinically unsaturated, aromatic monomers,andB represents blocks which are composed of structural elements based on polyolefins and are capable of cocrystallizing with the paraffins precipitating out of the middle distillate in the course of cooling, andn is a number in the range from 1 to 10 and m is a number in the range from 2 to 10.

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