Fuel oils based on middle distillates and copolymers of...

Details Fuel oils based on middle distillates and copolymers of... Fuel oils based on middle distillates and copolymers of...

2005-01-25

2005-01-25

Toomer, Cephia D. (Department: 1714)

Fuel and related compositions

Liquid fuels

Containing organic -c

C044S395000

Reexamination Certificate

active

06846338

ABSTRACT:
A fuel oil comprising:A) a mineral oil having a cloud point of less than −8° C., a boiling range (90-20%) of less than 120° C. and a difference between CFPP and PP of less than 10° C.,andB) one or more copolymers, wherein the copolymers comprise:a) bivalent structural unit (B1), wherein (B1) is a bivalent structural unit of formula (1)in-line-formulae description="In-line Formulae" end="lead"?—CH2—CH2—  (1)in-line-formulae description="In-line Formulae" end="tail"?andb) one or more bivalent structural units (B2), wherein(B2) is either a bivalent structural unit of formula (2)in-line-formulae description="In-line Formulae" end="lead"?—CH2—CR1R2—  (2)in-line-formulae description="In-line Formulae" end="tail"? in whichR1is hydrogen or methyl,R2is COOR3, OR3or OCOR3, andR3is an alkyl radical having at least 4 and at most 30 carbon atoms,or(B2) is a bivalent structural unit of formula (2a) in whichR3is an alkyl radical having at least 4 and at most 30 carbon atoms.

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