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US 12,241,038 B2Granted
Polyalphaolefin phenols with high para-position selectivity
AssigneeAfton Chemical Corporation
InventorsXin Tian, Jason Bell, Steven Anderson
Life of this patent
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Abstract
The present disclosure provides a detergent additives and methods for preparing a sulfurized alkyl phenate product from polyalphaolefins.
Claims10
An alkyl phenol suitable for forming a sulfurized alkyl phenate detergent composition, the alkyl phenol comprising the reaction product of a hydroxyaromatic compound and a polyalphaolefin oligomer derived from one or more C6 to C14 monomers forming an oligomer in the form of a dimer, trimer, tetramer, pentamer, or combination thereof, or copolymers of the oligomer, copolymer variants of the oligomer, or combinations thereof;
- and wherein about 40 mol percent or greater of the polyalphaolefin includes a carbon atom configured to form a tertiary carbocation position to react with the hydroxyaromatic compound at the para-position.
Dependencies are inferred from the claim text.