Patents by Inventor Liehpao Oscar Farng
Liehpao Oscar Farng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190127656Abstract: Disclosed in certain embodiments is a lubricating oil composition comprising an antioxidant polymer (e.g., oligomer) composition comprising repeat units of diphenylamine monomers of formula I wherein R is H, C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkynyl, —C(O)C1-C18 alkyl, —C(O)aryl and R1, R2, R3 and R4 are each independently H or a linear or branched C1-C18 alkyl, C1-C18 alkoxy, C1-C18 alkylamino, C1-C18 dialkylamino, C1-C18 alkylthio, C2-C18 alkenyl, C2-C18 alkynyl or C7-C21 aralkyl and wherein the number average molecular weight (Mn) of the polymer composition is from about 350 g/mol to about 5000 g/mol.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventors: Liehpao Oscar Farng, Graciela Sanchez Jimenez, Mary Dery, Paul Odorisio, Bridgett Rakestraw, Sai Shum, David Khoshabo, Michael L. Alessi, Rebecca Cristine Vieira, Andrew Edmund Taggi
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Publication number: 20190127526Abstract: An antioxidant polymer (e.g., oligomer) composition comprising repeat units of diphenylamine monomers of formula I wherein R is H, C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkynyl, —C(O)C1-C18 alkyl, —C(O)aryl and R1, R2, R3 and R4 are each independently H or a linear or branched C1-C18 alkyl, C1-C18 alkoxy, C1-C18 alkylamino, C1-C18 dialkylamino, C1-C18 alkylthio, C2-C18 alkenyl, C2-C18 alkynyl or C7-C21 aralkyl and wherein the number average molecular weight (Mn) of the polymer is from about 350 g/mol to about 5000 g/mol are highly effective antioxidants in lubricant compositions. The polymer compositions may be prepared by a process comprising subjecting diarylamine monomers to dehydrocondensation conditions.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventors: Liehpao Oscar Farng, Graciela Sanchez Jimenez, Mary Dery, Paul Odorisio, Bridgett Rakestraw, Sai Shum, David Khoshabo, Michael L. Alessi, Rebecca Cristine Vieira, Andrew Edmund Taggi
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Patent number: 10017708Abstract: This disclosure relates to a composition for use as an additive for fuels and lubricants including a reductive amination product of a vinyl terminated macromonomer (VTM) based aldehyde. Optionally aldehyde is reacted with the amino compound under condensation conditions sufficient to give an imine intermediate, and the imine intermediate is reacted under hydrogenation conditions sufficient to give the composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde. A reductive amination method for making a composition for use as an additive for fuels and lubricants. The method includes reacting a VTM based aldehyde with an amino compound containing at least one —NH— group under condensation conditions sufficient to give an imine intermediate, and reacting the imine intermediate under hydrogenation conditions sufficient to give said composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde.Type: GrantFiled: September 4, 2013Date of Patent: July 10, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Abhimanyu Onkar Patil, John W. Chu, Satish Bodige, Liehpao Oscar Farng, Donna Jean Crowther, Man Kit Ng, Patrick Brant, Kathryn L. Peretti
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Publication number: 20170158981Abstract: A functional fluid composition containing a fluid base stock (e.g., a phosphate ester fluid base stock) as a major component, and an erosion inhibitor mixture as a minor component. The erosion inhibitor mixture contains at least a first erosion inhibitor (e.g., a perhalometallate or perhalometalloidate salt) and a second erosion inhibitor (e.g., an alkali metal salt of perfluoroalkyl sulfonic acid). Erosion inhibition of the functional fluid composition is improved as compared to erosion inhibition achieved using singly the first erosion inhibitor or the second erosion inhibitor, as measured by one or more of ASTM D2624, ASTM D974, ASTM D130 and ASTM D6304. A method for operating and lubricating a hydraulic system by utilizing as a hydraulic fluid, the functional fluid composition. A method for identifying erosion inhibition effectiveness of the functional fluid. The functional fluids are useful as aircraft hydraulic fluids.Type: ApplicationFiled: November 15, 2016Publication date: June 8, 2017Inventors: Liehpao Oscar Farng, John T. Fogarty, David G.L. Holt, Susan C. Ardito, Andrew G. Horodysky
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Patent number: 9416206Abstract: Provided are ethylene propylene copolymers compositions thereof and methods for making the same. The composition may include an ethylene copolymer, comprising 40 wt % to 70 wt % of units derived from ethylene, and at least 30 wt % of units derived from at least one ?-olefin having 3 to 20 carbon atoms. The composition can have a melting point (Tm) in ° C., as measured by DSC, that satisfies the relation: Tm>3.4×E?180, where E is the weight % of units derived from ethylene in the copolymer. The composition can also have a Mw/Mn ratio of about 1.5 to about 3.5. The composition can further have a content of Group 4 metals derived from a catalyst of 25 ppm or less.Type: GrantFiled: January 12, 2011Date of Patent: August 16, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Rainer Kolb, Liehpao Oscar Farng, Sudhin Datta, Donna J. Crowther, Peijun Jiang
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Patent number: 9315761Abstract: This disclosure relates to a composition for use as an additive for fuels and lubricants including an amination product of an epoxidized vinyl terminated macromonomer (VTM) and an amino compound containing at least one —NH— group. The epoxidized VTM is reacted with the amino compound containing at least one —NH— group under amination conditions sufficient to give said composition. The epoxidized VTM is formed by reacting a VTM with an epoxidizing agent under epoxidation conditions sufficient to give an epoxidized VTM. An amination method for making a composition for use as an additive for fuels and lubricants. The method comprises reacting an epoxidized VTM with an amino compound containing at least one —NH— group under amination conditions sufficient to give the composition. The epoxidized VTM is formed by reacting a VTM with an epoxidizing agent under epoxidation conditions sufficient to give an epoxidized VTM.Type: GrantFiled: September 4, 2013Date of Patent: April 19, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Abhimanyu Onkar Patil, Satish Bodige, Liehpao Oscar Farng, Kathryn L. Peretti
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Patent number: 8999907Abstract: Polymeric compositions and methods for making and using the same are provided. The polymeric composition can include a first ethylene-based copolymer and a second ethylene-based copolymer. The first ethylene-based copolymer can have a weight percent of ethylene-derived units based on a weight of the polymeric composition (EA) ranging from about 35 wt % to about 52 wt % and a weight-average molecular weight (MwA) of less than or equal to 130,000. The second ethylene-based copolymer can have a weight percent of ethylene-derived units based on the weight of the polymeric composition (EB) ranging from about 65 wt % to about 85 wt % and a weight-average molecular weight (MwB) of less than 130,000.Type: GrantFiled: July 7, 2011Date of Patent: April 7, 2015Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Rainer Kolb, Liehpao Oscar Farng, Vera Minak-Bernero, Mun Fu Tse, Eric B. Sirota, Diana Smirnova
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Publication number: 20140087983Abstract: This disclosure relates to a composition for use as an additive for fuels and lubricants including an amination product of an epoxidized vinyl terminated macromonomer (VTM) and an amino compound containing at least one —NH— group. The epoxidized VTM is reacted with the amino compound containing at least one —NH— group under amination conditions sufficient to give said composition. The epoxidized VTM is formed by reacting a VTM with an epoxidizing agent under epoxidation conditions sufficient to give an epoxidized VTM. An amination method for making a composition for use as an additive for fuels and lubricants. The method comprises reacting an epoxidized VTM with an amino compound containing at least one —NH— group under amination conditions sufficient to give the composition. The epoxidized VTM is formed by reacting a VTM with an epoxidizing agent under epoxidation conditions sufficient to give an epoxidized VTM.Type: ApplicationFiled: September 4, 2013Publication date: March 27, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu Onkar Patil, Satish Bodige, Liehpao Oscar Farng, Kathryn L. Peretti
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Publication number: 20140087985Abstract: This disclosure relates to a composition for use as an additive for fuels and lubricants including a reductive amination product of a vinyl terminated macromonomer (VTM) based aldehyde. Optionally aldehyde is reacted with the amino compound under condensation conditions sufficient to give an imine intermediate, and the imine intermediate is reacted under hydrogenation conditions sufficient to give the composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde. A reductive amination method for making a composition for use as an additive for fuels and lubricants. The method includes reacting a VTM based aldehyde with an amino compound containing at least one —NH— group under condensation conditions sufficient to give an imine intermediate, and reacting the imine intermediate under hydrogenation conditions sufficient to give said composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde.Type: ApplicationFiled: September 4, 2013Publication date: March 27, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu Onkar Patil, John W. Chu, Satish Bodige, Liehpao Oscar Farng, Donna Jean Crowther, Man Kit Ng, Patrick Brant, Kathryn L. Peretti
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Patent number: 8569216Abstract: A Group IV/Group V lubricating composition providing improved antioxidation performance comprises from 5 wt. % to 40 wt. % of a Group V base oil component, such as alkylated naphthalene, at least 30 wt. % of a Group IV base oil component, such as one or more polyalphaolefin base stocks, and from 0.25 wt. % to 1.5 wt. % of a trithiophosphate-containing compound. The trithiophosphate-containing compound is preferably C30H57O7PS3. The lubricating composition includes not greater than 5 wt. % of a Group I, Group II, or Group III base oil component, and, preferably not greater than 10 ppm heavy metal component. The lubricating composition preferably has a kinematic viscosity of from 20 cSt to 1,000 cSt at 40° C. and a viscosity index (VI) of from 130 to 200.Type: GrantFiled: June 16, 2011Date of Patent: October 29, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: David A. Blain, Liehpao Oscar Farng, Eugenio Sanchez, Michael R. Douglass, Angela S. Galiano-Roth, James T. Carey
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Patent number: 8389452Abstract: Disclosed are rheology modifiers comprising compositionally disperse polymeric compositions and/or crystallinity disperse polymeric compositions that may be useful in modifying the rheological properties of lubrication fluids, and methods for making such compositions. The compositionally disperse polymeric composition are formed from at least two discrete compositions of ethylene copolymers. The crystallinity disperse polymeric composition are formed from ethylene copolymers having at least two discrete values of residual crystallinity.Type: GrantFiled: April 16, 2010Date of Patent: March 5, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Jo Ann Marie Canich, Liehpao Oscar Farng, Rainer Kolb, Vera Minak-Bernero, Eric B. Sirota, Thomas Tungshi Sun, Mun Fu Tse, Manika Varma-Nair
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Patent number: 8378048Abstract: Provided are amorphous ethylene propylene copolymer, compositions thereof, and methods for making same, whereby the copolymer can include of from about 40 wt. % to about 60 wt. % ethylene derived units; and of from about 60 wt. % to about 40 wt. % propylene derived units. The copolymer can be characterized by having no discernable melting point as measured by DSC, an MFRR (MI (21.6 kg; 230° C.)/MI (2.16 kg; 230° C.)) (MI (2.16 kg; 230° C.)) of about 38 or more, a molecular weight distribution (MWD) of from about 1.5 to about 2.5, and a shear viscosity ?* at 0.01 rad/sec measured at 70° C. that satisfies the relation |?*|(70° C.; 0.01 rad/sec)>1.2*106*|MFR|?0.77, wherein MFR is the melt flow rate.Type: GrantFiled: January 11, 2011Date of Patent: February 19, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Rainer Kolb, Jo Ann Marie Canich, Liehpao Oscar Farng, Sudhin Datta
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Publication number: 20120322705Abstract: A Group IV/Group V lubricating composition providing improved antioxidation performance comprises from 5 wt. % to 40 wt. % of a Group V base oil component, such as alkylated naphthalene, at least 30 wt. % of a Group IV base oil component, such as one or more polyalphaolefin base stocks, and from 0.25 wt. % to 1.5 wt. % of a trithiophosphate-containing compound. The trithiophosphate-containing compound is preferably C30H57O7PS3. The lubricating composition includes not greater than 5 wt. % of a Group I, Group II, or Group III base oil component, and, preferably not greater than 10 ppm heavy metal component. The lubricating composition preferably has a kinematic viscosity of from 20 cSt to 1,000 cSt at 40° C. and a viscosity index (VI) of from 130 to 200.Type: ApplicationFiled: June 16, 2011Publication date: December 20, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: David A. Blain, Liehpao Oscar Farng, Eugenio Sanchez, Michael R. Douglass, Angela S. Galiano-Roth, James T. Carey
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Patent number: 8309501Abstract: Provided are ethylene-based copolymers, methods of preparing the same, lubricating oil compositions including the same, methods for preparing such lubricating oil compositions, and end uses for such ethylene-based copolymers and lubricating oil compositions. The ethylene-based copolymers may include less than about 80 wt. % of units derived from ethylene and one or more alpha-olefin comonomers having 3 to 20 carbon atoms. The ethylene-based copolymers have a melting peak (Tm), as measured by DSC, of 80° C. or less, and a polydispersity index of about 2.8 or less. In some embodiments, the ethylene-based copolymers have an intramolecular composition distribution of about 50 wt. % or less and/or an intermolecular composition distribution of about 50 wt. % or less.Type: GrantFiled: April 16, 2010Date of Patent: November 13, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Rainer Kolb, Sudhin Datta, Liehpao Oscar Farng, Vera Minak-Bernero, Eric B. Sirota, Thomas Tungshi Sun, Mun Fu Tse
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Patent number: 8227392Abstract: This disclosure relates to substantially atactic polymers of at least one of propylene, 1-butene or 1-pentene, processes for making such polymers and compositions including the polymers. The polymers may be used as lubricants or may be combined with low viscosity base stocks to form lubricants. The polymers may be made in the presence of a metallocene catalyst with a non-coordinating anion activator and optionally with hydrogen.Type: GrantFiled: May 13, 2008Date of Patent: July 24, 2012Assignee: Exxonmobil Research and Engineering CompanyInventors: Margaret M. Wu, Ernestine W. Hill, Liehpao Oscar Farng, Andrew Jackson
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Publication number: 20120028867Abstract: Polymeric compositions and methods for making and using the same are provided. The polymeric composition can include a first ethylene-based copolymer and a second ethylene-based copolymer. The first ethylene-based copolymer can have a weight percent of ethylene-derived units based on a weight of the polymeric composition (EA) ranging from about 35 wt % to about 52 wt % and a weight-average molecular weight (MwA) of less than or equal to 130,000. The second ethylene-based copolymer can have a weight percent of ethylene-derived units based on the weight of the polymeric composition (EB) ranging from about 65 wt % to about 85 wt % and a weight-average molecular weight (MwB) of less than 130,000.Type: ApplicationFiled: July 7, 2011Publication date: February 2, 2012Inventors: Sudhin Datta, Rainer Kolb, Liehpao Oscar Farng, Vera Minak-Bernero, Mun Fu Tse, Eric B. Sirota, Diana Smirnova
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Publication number: 20110184134Abstract: Provided are amorphous ethylene propylene copolymer, compositions thereof, and methods for making same, whereby the copolymer can include of from about 40 wt. % to about 60 wt. % ethylene derived units; and of from about 60 wt. % to about 40 wt. % propylene derived units. The copolymer can be characterized by having no discernable melting point as measured by DSC, an MFRR (MI (2.16 kg; 230° C.)/MI 21.6 kg; 230° C.) of about 38 or more, a molecular weight distribution (MWD) of from about 1.5 to about 2.5, and a shear viscosity ?* at 0.01 rad/sec measured at 70° C. that satisfies the relation |?*|(70° C.; 0.01 rad/sec)>1.2*106*|MFR|?0.77, wherein MFR is the melt flow rate and ?* is the complex viscosity at 0.01 rad/sec measured at 70° C.Type: ApplicationFiled: January 11, 2011Publication date: July 28, 2011Inventors: Rainer Kolb, Jo Ann Marie Canich, Liehpao Oscar Farng, Sudhin Datta
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Publication number: 20110183879Abstract: Provided are ethylene propylene copolymers compositions thereof and methods for making the same. The composition may include an ethylene copolymer, comprising 40 wt % to 70 wt % of units derived from ethylene, and at least 30 wt % of units derived from at least one ?-olefin having 3 to 20 carbon atoms. The composition can have a melting point (Tm) in ° C., as measured by DSC, that satisfies the relation: Tm>3.4×E?180, where E is the weight % of units derived from ethylene in the copolymer. The composition can also have a Mw/Mn ratio of about 1.5 to about 3.5. The composition can further have a content of Group 4 metals derived from a catalyst of 25 ppm or less.Type: ApplicationFiled: January 12, 2011Publication date: July 28, 2011Inventors: Rainer Kolb, Liehpao Oscar Farng, Sudhin Datta, Donna J. Crowther, Peijun Jiang
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Publication number: 20100323937Abstract: This disclosure relates to substantially atactic polymers of at least one of propylene, 1-butene or 1-pentene, processes for making such polymers and compositions including the polymers. The polymers may be used as lubricants or may be combined with low viscosity base stocks to form lubricants. The polymers may be made in the presence of a metallocene catalyst with a non-coordinating anion activator and optionally with hydrogen.Type: ApplicationFiled: May 13, 2008Publication date: December 23, 2010Inventors: Margaret M. Wu, Ernestine W. Hill, Liehpao Oscar Farng, Andrew Jackson
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Publication number: 20100273693Abstract: Disclosed are rheology modifiers comprising compositionally disperse polymeric compositions and/or crystallinity disperse polymeric compositions that may be useful in modifying the rheological properties of lubrication fluids, and methods for making such compositions. The compositionally disperse polymeric composition are formed from at least two discrete compositions of ethylene copolymers. The crystallinity disperse polymeric composition are formed from ethylene copolymers having at least two discrete values of residual crystallinity.Type: ApplicationFiled: April 16, 2010Publication date: October 28, 2010Inventors: Sudhin Datta, Jo Ann Marie Canich, Liehpao Oscar Farng, Rainer Kolb, Vera Minak-Bernero, Eric B. Sirota, Thomas Tungshi Sun, Mun Fu Tse, Manika Varma-Nair