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U.S. Department of Energy
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Alkyl phenol-sulfur condensates as fuel and lubricating oil additives

Patent ·
OSTI ID:6229995
A polymer composition is described capable of improving the low temperature flow properties and oxidation stability of hydrocarbon oil comprising the condensation reaction product of reactants comprising alkylated phenol, comprising at least 80 mole percent difunctional alkylated phenol, and sulfurizing agent wherein: (a) said polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5; (b) in said alkylated phenol reactant the alkyl groups: (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; (c) not more than about 10 mole percent of the alkyl groups on said alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on said alkylated phenol have more than 26 carbon atoms.
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (United States)
Patent Number(s):
A; US 5236608
Application Number:
PPN: US 7-561895
OSTI ID:
6229995
Country of Publication:
United States
Language:
English