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).

  • Publication number: 20190127656
    Abstract: 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: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: 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
  • Publication number: 20190127526
    Abstract: 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: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: 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
  • Patent number: 10017708
    Abstract: 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: Grant
    Filed: September 4, 2013
    Date of Patent: July 10, 2018
    Assignee: 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
  • Publication number: 20170158981
    Abstract: 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: Application
    Filed: November 15, 2016
    Publication date: June 8, 2017
    Inventors: Liehpao Oscar Farng, John T. Fogarty, David G.L. Holt, Susan C. Ardito, Andrew G. Horodysky
  • Patent number: 9416206
    Abstract: 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: Grant
    Filed: January 12, 2011
    Date of Patent: August 16, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rainer Kolb, Liehpao Oscar Farng, Sudhin Datta, Donna J. Crowther, Peijun Jiang
  • Patent number: 9315761
    Abstract: 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: Grant
    Filed: September 4, 2013
    Date of Patent: April 19, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Abhimanyu Onkar Patil, Satish Bodige, Liehpao Oscar Farng, Kathryn L. Peretti
  • Patent number: 8999907
    Abstract: 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: Grant
    Filed: July 7, 2011
    Date of Patent: April 7, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Rainer Kolb, Liehpao Oscar Farng, Vera Minak-Bernero, Mun Fu Tse, Eric B. Sirota, Diana Smirnova
  • Publication number: 20140087983
    Abstract: 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: Application
    Filed: September 4, 2013
    Publication date: March 27, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Satish Bodige, Liehpao Oscar Farng, Kathryn L. Peretti
  • Publication number: 20140087985
    Abstract: 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: Application
    Filed: September 4, 2013
    Publication date: March 27, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, John W. Chu, Satish Bodige, Liehpao Oscar Farng, Donna Jean Crowther, Man Kit Ng, Patrick Brant, Kathryn L. Peretti
  • Patent number: 8569216
    Abstract: 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: Grant
    Filed: June 16, 2011
    Date of Patent: October 29, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: David A. Blain, Liehpao Oscar Farng, Eugenio Sanchez, Michael R. Douglass, Angela S. Galiano-Roth, James T. Carey
  • Patent number: 8389452
    Abstract: 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: Grant
    Filed: April 16, 2010
    Date of Patent: March 5, 2013
    Assignee: 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
  • Patent number: 8378048
    Abstract: 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: Grant
    Filed: January 11, 2011
    Date of Patent: February 19, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rainer Kolb, Jo Ann Marie Canich, Liehpao Oscar Farng, Sudhin Datta
  • Publication number: 20120322705
    Abstract: 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: Application
    Filed: June 16, 2011
    Publication date: December 20, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: David A. Blain, Liehpao Oscar Farng, Eugenio Sanchez, Michael R. Douglass, Angela S. Galiano-Roth, James T. Carey
  • Patent number: 8309501
    Abstract: 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: Grant
    Filed: April 16, 2010
    Date of Patent: November 13, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rainer Kolb, Sudhin Datta, Liehpao Oscar Farng, Vera Minak-Bernero, Eric B. Sirota, Thomas Tungshi Sun, Mun Fu Tse
  • Patent number: 8227392
    Abstract: 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: Grant
    Filed: May 13, 2008
    Date of Patent: July 24, 2012
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Margaret M. Wu, Ernestine W. Hill, Liehpao Oscar Farng, Andrew Jackson
  • Publication number: 20120028867
    Abstract: 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: Application
    Filed: July 7, 2011
    Publication date: February 2, 2012
    Inventors: Sudhin Datta, Rainer Kolb, Liehpao Oscar Farng, Vera Minak-Bernero, Mun Fu Tse, Eric B. Sirota, Diana Smirnova
  • Publication number: 20110184134
    Abstract: 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: Application
    Filed: January 11, 2011
    Publication date: July 28, 2011
    Inventors: Rainer Kolb, Jo Ann Marie Canich, Liehpao Oscar Farng, Sudhin Datta
  • Publication number: 20110183879
    Abstract: 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: Application
    Filed: January 12, 2011
    Publication date: July 28, 2011
    Inventors: Rainer Kolb, Liehpao Oscar Farng, Sudhin Datta, Donna J. Crowther, Peijun Jiang
  • Publication number: 20100323937
    Abstract: 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: Application
    Filed: May 13, 2008
    Publication date: December 23, 2010
    Inventors: Margaret M. Wu, Ernestine W. Hill, Liehpao Oscar Farng, Andrew Jackson
  • Publication number: 20100273693
    Abstract: 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: Application
    Filed: April 16, 2010
    Publication date: October 28, 2010
    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