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US 2025/0034470 A1Published application
Dialkyl phenol initiated polyetheramine and uses thereof
AssigneeHuntsman Petrochemical Corporation
InventorsHaibo ZHAO, Yusheng GAO
Life of this patent
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Abstract
A polyetheramine produced from a dialkyl phenol initiator which is first alkoxylated with propylene oxide and then reductively aminated to form the polyetheramine. The polyetheramine may be used in a variety of applications, such as a fuel additive in a fuel composition.
Claims16
A fuel additive for a fuel comprising a polyetheramine compound having a formula (1)
- wherein each R may be the same or different and is an alkyl group having up to 30 carbon atoms, n is an integer from about 2 to about 200, and A is —NH2 or —NHRa, wherein Ra is an alkyl group having up to about 30 carbon atoms.
A process for producing a polyetheramine compound comprising charging a dialkyl phenol compound having a formula (2)
- wherein each R may be the same or different and is an alkyl group having up to 30 carbon atoms to an alkoxylation reaction zone, contacting the dialkyl phenol with propylene oxide in the alkoxylation reaction zone for a period of time to provide an intermediate polyol, charging the intermediate polyol to a reductive amination zone, and contacting the intermediate polyol in the reductive amination zone with a reductive amination catalyst in the presence of hydrogen and ammonia or a primary alkyl amine.
Dependencies are inferred from the claim text.