Synergistic pour point depressant combinations and hydrocarbon l

Details Synergistic pour point depressant combinations and hydrocarbon l Synergistic pour point depressant combinations and hydrocarbon l

1995-09-28

1997-06-24

Willis, Jr., Prince

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic -co- compound

585 10, 585 12, C10M14306, C10M14308, C10M14522

Patent

active

056417365

ABSTRACT:
A synergistic mixture of pour point depressants is disclosed along with hydrocarbon lubricants containing same. The pour point depressant mixture is a mixture of a first PPD comprising a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms; and an additional conventional PPD, preferably polymethylmethacrylate. The copolymer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.

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R.M. Mortier (1992) Chemistry and Technology of Lubricants, Blackie & Son (GB).

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