Claims
- 1. A fuel oil composition comprising a major proportion of a distillate petroleum fraction having an atmospheric boiling range of from about 120.degree. C. to about 400.degree. C. and from about 0.005 to 0.1 wt. % of a synergistic flow and filterability improving combination of the following:
- (a) from 0.2 to 8 parts by weight of a polymeric substance selected from the group consisting of (i) poly (isomerized C.sub.12 -C.sub.50 alpha monoolefin) wherein said monoolefin contains at least 60% by weight of C.sub.16 to C.sub.32 alpha monoolefin, said poly (isomerized C.sub.12 -C.sub.50 alpha monoolefin) having a number average molecular weight of about 400 to 3000 and (ii) aromatics having 1 to 3 benzene rings alkylated with said poly (isomerized C.sub.12-50 monoolefin); and
- (b) per part by weight of a lubricating oil pour depressant having a number average moleuclar weight of about 800 to 50,000 and having pendant alkyl groups of 6 to 32 carbons atoms, said pour depressant being selected from the group consisting of (i) the condensation product of chlorinated C.sub.16-40 paraffin containing about 5 to 25 wt. % chlorine and an aromatic hydrocarbon, and (ii) a sulfone copolymer of sulfur dioxide and C.sub.14-20 alpha olefin, wherein said synergistic combinations are combinations selected from the group consisting of (a) (i) with (b) (ii); (a) (ii) with (b) (i); and (a) (ii) with (b) (ii).
- 2. A fuel oil composition according to claim 1, wherein said lubricating oil pour depressant is said sulfone copolymer.
- 3. A fuel oil composition according to claim 1, wherein said polymeric substance is said poly (isomerized C.sub.12 -C.sub.50 .alpha.-olefin.
- 4. A fuel oil composition according to claim 1, wherein said polymeric substance is said poly (isomerized C.sub.12 -C.sub.50 .alpha.-olefin) alkylated aromatic compound.
- 5. A fuel oil composition according to claim 4, wherein said polymeric substance is a poly (isomerized C.sub.28 (ave.) .alpha.-olefin mixture) alkylated toluene and said lubricating oil pour depressant is the condensation product of chlorinated wax and naphthalene.
- 6. A fuel oil composition according to claim 4, wherein said polymeric substance is a poly (isomerized C.sub.28 (ave.) .alpha.-olefin mixture) alkylated toluene and said lubricating oil pour depressant is said sulfone copolymer.
Parent Case Info
This is a continuation of application Ser. No. 905,002, filed May 11, 1978 now abandoned
US Referenced Citations (7)
Continuations (1)
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Number |
Date |
Country |
Parent |
905002 |
May 1978 |
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