Compositions – Electrolytes for electrical devices
Patent
1989-01-25
1990-09-11
Dixon, Jr., William R.
Compositions
Electrolytes for electrical devices
252 52R, G10M10522
Patent
active
049561111
ABSTRACT:
A pour point depressant for lubricating oils comprises a poly(methacrylate) polymer having the repeating unit ##STR1## wherein R is an alkyl group having an average chain length in the polymer of 12.6 to 13.8, and n is an integer indicating the number of repeating units, the value of n being sufficient to provide a molecular weight of 10,000 to 300,000 for the polymer, the pour point depressant having the capacity to reduce the stable pour point to -35.degree. C., while being compatible with other additives such as viscosity index improvers and detergents.
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Heilman William J.
Wilburn Bruce E.
Dixon Jr. William R.
Hunter, Jr. James M.
Pennzoil Products Company
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