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公开(公告)号：US20220356155A1
公开(公告)日：2022-11-10
申请号：US17245219
申请日：2021-04-30
Applicant: ExxonMobil Research and Engineering Company
Inventor： David J. Abdallah , Krystal B. Wrigley , Zsolt Lengyel
IPC: C07D211/10 , C10L1/232
Abstract: High temperature antioxidant additives and methods for improving a liquid fuel composition's thermal oxidative stability are disclosed. Also provided are liquid fuel compositions including a liquid fuel and the high temperature antioxidant additives. The high temperature antioxidant additive may include an alkylpiperidin-1-yl alkylcarbamate.
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Patent Agency Ranking
公开(公告)号：US10808194B2
公开(公告)日：2020-10-20
申请号：US16694044
申请日：2019-11-25
Applicant: ExxonMobil Research and Engineering Company
Inventor： David J. Abdallah , Zsolt Lengyel
Abstract: High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel and a high temperature antioxidant additive. The high temperature antioxidant additive may comprise an indoline compound with a bicyclic ring structure, wherein the indoline compound comprises a six-membered aromatic ring and a five-membered aliphatic ring that share a carbon-carbon aromatic bond. The five-membered aliphatic ring may be heterocyclic and may comprise a nitrogen positioned in an alpha position to the six-membered aromatic ring.
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公开(公告)号：US10597597B1
公开(公告)日：2020-03-24
申请号：US16128615
申请日：2018-09-12
Applicant: ExxonMobil Research and Engineering Company
Inventor： David J. Abdallah , Zsolt Lengyel , Mike T. Noorman
Abstract: High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel; and a high temperature antioxidant additive comprising a nitroxide radical having a formula: wherein R1, R2, R3, and R4 are individually selected from an alkyl group or a hetero atom substituted alkyl group, and wherein R5 and R6 are any atom or group except hydrogen which can bond covalently to carbon.
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公开(公告)号：US20200080015A1
公开(公告)日：2020-03-12
申请号：US16128615
申请日：2018-09-12
Applicant: ExxonMobil Research and Engineering Company
Inventor： David J. Abdallah , Zsolt Lengyel , Mike T. Noorman
Abstract: High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel; and a high temperature antioxidant additive comprising a nitroxide radical having a formula: wherein R1, R2, R3, and R4 are individually selected from an alkyl group or a hetero atom substituted alkyl group, and wherein R5 and R6 are any atom or group except hydrogen which can bond covalently to carbon.
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公开(公告)号：US20220098503A1
公开(公告)日：2022-03-31
申请号：US17448423
申请日：2021-09-22
Applicant: ExxonMobil Research and Engineering Company
Inventor： David J. Abdallah , Zsolt Lengyel , Krystal B. Wrigley
Abstract: GDI deposit fluidizing additives, liquid fuel compositions including such additives and methods that improve a liquid fuel composition's GDI performance are provided. A liquid fuel composition may include a major amount of a base gasoline fuel; and 1 to 500 ppm of one or more polyether monohydroxy compounds, with the proviso that the liquid fuel composition is essentially free of fuel detergent additives. The liquid fuel composition provides at least 10% lower particulate emission as a function of time relative to a comparable liquid fuel composition not including the one or more polyether monohydroxy compounds. The GDI deposit fluidizing enhancing additive may include polyether monohydroxy compounds with the butane oxide and propene oxide in a variety of ratios and randomly distributed in the additive.
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公开(公告)号：US20200181515A1
公开(公告)日：2020-06-11
申请号：US16694044
申请日：2019-11-25
Applicant: ExxonMobil Research and Engineering Company
Inventor： David J. Abdallah , Zsolt Lengyel
IPC: C10L1/232
Abstract: High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel and a high temperature antioxidant additive. The high temperature antioxidant additive may comprise an indoline compound with a bicyclic ring structure, wherein the indoline compound comprises a six-membered aromatic ring and a five-membered aliphatic ring that share a carbon-carbon aromatic bond. The five-membered aliphatic ring may be heterocyclic and may comprise a nitrogen positioned in an alpha position to the six-membered aromatic ring.
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