Copolymers with nitrogen groups, useful as additives for decreas

Details Copolymers with nitrogen groups, useful as additives for decreas Copolymers with nitrogen groups, useful as additives for decreas

1983-11-09

1985-04-16

Harris-Smith, Y.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 70, 44 71, 44 72, 5253276, 5253295, C10L 122

Patent

active

045113696

ABSTRACT:
Copolymers with nitrogen groups are used as additives to lower the cloud point of middle distillates such as gas oils. They are obtained by reacting a compound having a primary amine group with a copolymer comprising from 20 to 40% of recurrent units from a linear .alpha.-olefin, from 30 to 70% of recurrent units from an .alpha.,.beta.-unsaturated dicarboxylic compound, from 5 to 30% of recurrent units from an alkyl ester of unsaturated monocarboxylic acid, and from 5 to 15% of recurrent units from styrene or a styrene derivative.
These additives also improve the limit filterability temperature and the pour point of the middle distillates.

REFERENCES:
patent: 4160739 (1979-07-01), Stambaugh et al.
patent: 4359325 (1982-11-01), Dawans et al.

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