Dialkyl carbonates, methods for their production and use
AssigneeHuntsman Petrochemical Corporation
InventorHaibo Zhao
Life of this patent
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Abstract
The present disclosure provides a dialkyl carbonate prepared from a methyl branched primary C16-C17 alcohol. The dialkyl carbonate is prepared by transesterifying a reactant dialkyl carbonate with the methyl branched primary C16-C17 alcohol under transesterification reaction conditions. The subsequently produced dialkyl carbonate may be used in various applications, including, but not limited to, in lubricating, cosmetic and textile products and applications.
Claims14
A dialkyl carbonate of a methyl branched primary C16-C17 alcohol having a structure according to formula (I):
- where R1 is a methyl branched C16-C17 alkyl group;
- and
- R2 has the same meaning as R1 or is an alkyl group having 1 to 20 carbon atoms, an alicyclic group having 3 to 20 carbon atoms or an aralkyl group having 6 to 20 carbon atoms.
A process for preparing a dialkyl carbonate of a methyl branched primary C16-C17 alcohol having a structure according to formula (I):
- where R1 is a methyl branched C16-C17 alkyl group;
- and
- R2 has the same meaning as R1 or is an alkyl group having 1 to 20 carbon atoms, an alicyclic group having 3 to 20 carbon atoms or an aralkyl group having 6 to 20 carbon atoms comprising transesterifying a reactant dialkyl carbonate having a structure according to formula (II):
- where R3 is an alkyl group having 1 to 20 carbon atoms, an alicyclic group having 3 to 20 carbon atoms or an aralkyl group having 6 to 20 carbon atoms with a methyl branched primary C16-C17 alcohol and optionally a transesterification catalyst.
A lubricant composition comprising a lubricating quantity of a dialkyl carbonate of a methyl branched primary C16-C17 alcohol having a structure according to formula (I)
- where R1 is a methyl branched C16-C17 alkyl group;
- and
- R2 has the same meaning as R1 or is an alkyl group having 1 to 20 carbon atoms, an alicyclic group having 3 to 20 carbon atoms or an aralkyl group having 6 to 20 carbon atoms.
Dependencies are inferred from the claim text.