Patents by Inventor Norman Yang

Norman Yang 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).

  • Patent number: 7652186
    Abstract: The invention relates to a method of making a PAO characterized by a low viscosity, low Noack volatility, and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. The products comprise trimers obtained by fractionating a hydrogenated bottoms product from an oligomerization process using said promoter system.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: January 26, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria C. B. Goze, Anatoly I. Kramer, Pramod J. Nandapurkar, Norman Yang
  • Publication number: 20090326296
    Abstract: The present invention relates to poly alpha-olefins (PAO's) which exhibit superior Noack volatility at low pour points. The poly alpha-olefin is prepared from an olefin feed comprised of a blend of octene, decene, and dodecene, the feed comprising at least 10 weight % octene and at least 30 weight % dodecene. The process includes both synthesis and distillation of the olefin and oligomerization olefin. The oligomerized olefin feed yields at least 50% low viscosity PAO having a nominal viscosity at 100° C. of about 4 cSt.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Maria Caridad Brillantes Goze, Phil Surana, Norman Yang
  • Patent number: 7619026
    Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: November 17, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
  • Publication number: 20090247442
    Abstract: The invention is directed to a process for the preparation of high viscosity lubricant base stocks by contacting alphaolefin feedstocks with single-site metallocene catalysts in a mixed flow or continuous stirred tank reactors.
    Type: Application
    Filed: February 19, 2009
    Publication date: October 1, 2009
    Inventors: Mark Paul Hagemeister, Peijun Jiang, Margaret M. Wu, Norman Yang
  • Publication number: 20090240012
    Abstract: A process for the preparation of oligomeric poly alpha-olefins includes oligomerizing low molecular weight PAO oligomer in the presence of a Lewis acid catalyst such as promoted aluminum trichloride or boron trifluoride under oligomerization conditions. The low molecular weight PAO oligomers used as a feed or feed component of the present process are the light olefinic by-product fractions including the dimers and light fractions from the metallocene-catalyzed PAO oligomerization process which are characterized by a molecular weight of 150 to 600 and a terminal olefin (vinylidene) content of at least 25%.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 24, 2009
    Inventors: Abhimanyu Onkar Patil, Margaret May-Som Wu, Norman Yang
  • Patent number: 7592497
    Abstract: The invention relates to a method of making a PAO from mixtures comprising 1-decene and 1-dodecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: September 22, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Norman Yang, Pramod Jayant Nandapurkar
  • Patent number: 7550640
    Abstract: This invention relates to the use of 1-decene/1-dodecene olefin mixture to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to about 4000, particularly useful as lubricant base stocks.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: June 23, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Phil Surana, Norman Yang, Pramod J. Nandapurkar
  • Patent number: 7547811
    Abstract: This invention relates to the use of olefin mixtures containing 1-hexene/1-decene/1-dodecene and, additionally, 1-octene or 1-decene to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to about 4000, particularly useful as lubricant base stocks.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 16, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Anatoly Ilich Kramer, Phil Surana, Pramod Jayant Nandapurkar, Norman Yang
  • Patent number: 7544850
    Abstract: Disclosed herein is a method of making a PAO using tetradecene and particularly mixtures comprising 1-hexene, 1-decene, 1-dodecene, and 1-tetradecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 9, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria Caridad Brillantes Goze, Pramod Jayant Nandapurkar, Norman Yang
  • Publication number: 20090036725
    Abstract: The present invention relates to processes to produce liquid poly-alpha-olefins comprising: a) contacting in a reaction zone, in the presence of from 0 to 60 psi hydrogen, one or more C3 to C20 alpha-olefin monomers with a non-coordinating anion activator, a single bridged meso-metallocene transition metal compound having less than about 35 wt % racemic isomer, and a co-activator selected from the group consisting of alkyl aluminum compounds and alkyl alumoxanes, provided that when the alkyl alumoxane is present it is present in a molar ratio of less than 0.1:1 of alkylalumoxane to meso-metallocene, and provided that when the alkyl aluminum compound is present it is present at a molar ratio of alkyl aluminum to meso-metallocene of from 2:1 to 10,000 to 1, where the molar ratio of activator to meso-metallocene is from 10:1 to 0.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 5, 2009
    Inventors: Margaret M. Wu, Mark P. Hagemeister, Norman Yang
  • Publication number: 20090005279
    Abstract: This invention relates to a polyalpha-olefin (and hydrogenated analogs thereof) comprising more than 50 mole % of one or more C5 to C24 alpha-olefin monomers where the polyalpha-olefin has: a) 40 mole % or more of mm triads, b) a Bromine number of Y or greater, where Y is equal to 89.92*(V)?°5863, where V is the Kinematic Viscosity of the polyalpha-olefin measured at 100° C. in cSt, and c) 1,2 disubstituted olefins present at 7 mole % or more, preferably having Z mole % or more of units represented by the formula: where j, k and m are each, independently, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, or 22, n is an integer from 1 to 350, and where Z=8.420*Log(V)?4.048, where V is the kinematic viscosity of the polyalpha-olefin measured at 1000 C in cSt This invention also relates to process to produce such polyalpha-olefins.
    Type: Application
    Filed: June 2, 2006
    Publication date: January 1, 2009
    Inventors: Margaret May-Som Wu, Lisa Saunders Baugh, Jo Ann Canich, Chia Shian Chee, Mark Paul Hagemeister, Andrew Jackson, Peijun Jiang, Gordon H. Lee, Frederick Yip-Kwai Lo, Steven P. Rucker, Shakeel Tirmizi, John F. Walzer, JR., Norman Yang
  • Patent number: 7456329
    Abstract: Polyolefins made in accordance with the present invention are produced by polymerizing an unsaturated olefin or combination of unsaturated olefins to produce an unsaturated polyolefin, isomerizing the unsaturated polyolefin in the presence of an acid catalyst under conditions to produce a substantially unsaturated-isomerized polyolefin, and hydrogenating the unsaturated-isomerized polyolefin to produce a saturated isomerized polyolefin. A lube oil comprising the inventive saturated isomerized polyolefin is also disclosed.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: November 25, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Margaret May-Som Wu, Norman Yang, Anatoly Ilich Kramer
  • Publication number: 20080020928
    Abstract: The invention is directed to a process for producing polyolefins by one or more homogeneous or colloidal polymerization catalyst wherein residual catalyst is removed by using a solid sorbent
    Type: Application
    Filed: April 26, 2007
    Publication date: January 24, 2008
    Inventors: Margaret May-Som Wu, Norman Yang, Mark Paul Hagemeister, Shakeel Tirmizi
  • Publication number: 20070225535
    Abstract: The invention relates to a method of making a PAO from mixtures comprising 1-decene and 1-dodecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Inventors: Norman Yang, Pramod Nandapurkar
  • Publication number: 20070225534
    Abstract: Disclosed herein is a method of making a PAO using tetradecene and particularly mixtures comprising 1-hexene, 1-decene, 1-dodecene, and 1-tetradecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Inventors: Maria Goze, Pramod Nandapurkar, Norman Yang
  • Publication number: 20070225533
    Abstract: This invention relates to the use of olefin mixtures containing 1-hexene/1-decene/1-dodecene and, additionally, 1-octene or 1-decene to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to about 4000, particularly useful as lubricant base stocks.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Inventors: Anatoly Kramer, Phil Surana, Pramod Nandapurkar, Norman Yang
  • Publication number: 20070123659
    Abstract: Polyolefins made in accordance with the present invention are produced by polymerizing an unsaturated olefin or combination of unsaturated olefins to produce an unsaturated polyolefin, isomerizing the unsaturated polyolefin in the presence of an acid catalyst under conditions to produce a substantially unsaturated-isomerized polyolefin, and hydrogenating the unsaturated-isomerized polyolefin to produce a saturated isomerized polyolefin. A lube oil comprising the inventive saturated isomerized polyolefin is also disclosed.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Margaret Wu, Norman Yang, Anatoly Kramer
  • Publication number: 20070000807
    Abstract: The invention relates to industrial lubricant and grease compositions containing high viscosity index polyalphaolefins (HVI-PAO). The use of HVI-PAOs in industrial oils and greases application provides advantages in improved shear stability, wear property, foam property, energy efficiency and improved overall performance.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 4, 2007
    Inventors: Margaret Wu, Andrew Jackson, Walter Vann, James Carey, Norman Yang, Suzzy Ho
  • Publication number: 20060211581
    Abstract: The invention relates to compositions comprising a blend of Group III basestocks and low volatility, low viscosity PAO basestocks. The blend is particularly useful for preparing finished lubricants that meet or even exceed the criteria for SAE Grade 0 W multi-grade engine oils. The combination of these low volatility, low viscosity PAOs with Group III basestocks provide, in embodiments, the necessary performance criteria in automatic transmission fluids, automotive or industrial gear oils, hydraulic fluids, or any other high performance lubricant requiring a combination of excellent low fluidity and low volatility.
    Type: Application
    Filed: January 24, 2006
    Publication date: September 21, 2006
    Inventors: Charles Bullock, Norman Yang, Kathleen Cooper, Nicole Temme
  • Publication number: 20060211904
    Abstract: The invention relates to a method of making a PAO characterized by a low viscosity, low Noack volatility, and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. The products comprise trimers obtained by fractionating a hydrogenated bottoms product from an oligomerization process using said promoter system.
    Type: Application
    Filed: January 24, 2006
    Publication date: September 21, 2006
    Inventors: Maria Goze, Anatoly Kramer, Pramod Nandapurkar, Norman Yang