Patents Represented by Attorney, Agent or Law Firm Catherine L. Bell
  • Patent number: 7662892
    Abstract: This invention relates to a continuous process to prepare olefin impact copolymers comprising producing a semi-crystalline olefin polymer in a first reactor and then transferring the reactor contents to a second reactor where a low crystallinity olefin polymer is produced in the presence of the semi-crystalline polymer, where a fluorinated hydrocarbon is present in the polymerization medium of the first reactor, the second reactor or both reactors.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: February 16, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, John Richard Shutt, Charles Stanley Speed, Pradeep P. Shirodkar, Robert Olds Hagerty, Larry L. Iaccino
  • Patent number: 7652092
    Abstract: The present invention relates to articles made from plasticized thermoplastic polyolefin compositions comprising a thermoplastic polyolefin, a nucleating agent, and a non-functionalized hydrocarbon plasticizer.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: January 26, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mun Fu Tse, Chon-Yie Lin, Bryan R. Chapman, Bruce R. Lundmark
  • Patent number: 7652094
    Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized plasticizer; wherein the non-functionalized plasticizer may comprise C6 to C200 paraffins (including branched and normal paraffins) having a pour point of less than ?5° C. In one embodiment, the non-functionalized plasticizer is an isoparaffin comprising C6 to C25 isoparaffins. In another embodiment the non-functionalized plasticizer is a polyalphaolefin comprising C10 to C100 n-paraffins. The polyolefin may be a polypropylene homopolymer, copolymer, impact copolymer, or blends thereof, and may include a plastomer. Non-limiting examples of desirable article of manufacture made from compositions of the invention include films, tubes, pipes, sheets, fibers, woven and nonwoven fabrics, automotive components, furniture, sporting equipment, food storage containers, transparent and semi-transparent articles, toys, tubing and pipes, and medical devices.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: January 26, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Chon Yie Lin, Chia Yung Cheng, Henry Wu-Hsiang Yang
  • Patent number: 7648940
    Abstract: This invention relates to a catalyst composition of the formula: where Z—O is a support material, where O is oxygen, preferably Z is Si, Ti, Al, Sn, Fe, Ga, Zr, B, Mg, or Cr; each X is, independently, N, O, P or S; each n is, independently, 1 or 2; each R is, independently, an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group, provided at least one R group is an aryl or substituted aryl group. This invention also relates to the use of the above catalyst compound with an aluminum alkyl to polymerize olefins and other monomers.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: January 19, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Renuka N. Ganesh
  • Patent number: 7645829
    Abstract: Disclosed herein is an adhesive composition comprising: a random propylene polymer component having a heat of fusion of between 1 and 70 J/g and an mm triad tacticity index of at least 75%; and a functionalized polymer component comprising a C2-C20 olefin comprising at least 0.1 wt % of a functional group; wherein the adhesive composition has a T-Peel adhesion on a polar substrate at 20° C. of at least 175 N/m (1 lb/in) and a T-Peel adhesion on a non-polar substrate at 20° C. of at least 175 N/m Pa (1 lb/in) and where the polarity of the polar substrate is at least 0.10 units higher than the polarity of the non-polar substrate. Methods to produce the adhesive and articles comprising the adhesive are also disclosed.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: January 12, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mun Fu Tse, Jean-Roch H. Schauder, Feng Li, Thottinal Abraham Mathew
  • Patent number: 7619038
    Abstract: This invention relates to homogeneous blends of: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170° C. and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 5 to 12 weight % of one or more C2 and or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having: a) 10 to 50 percent crystallinity or less; b) a melt flow rate of 200 dg/min or less; c) a DSC melting point (second melt Tm) of 130° C.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: November 17, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Aspy K. Mehta, Chia Cheng, Sudhin Datta, Wen Li, Chon Y. Lin, Srivatsan S. Iyer
  • Patent number: 7605105
    Abstract: A transition metal ligand complex has the following formula: wherein R1 and R2 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R3 and R4 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R5 represents an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms, provided that R4 and R5 may be joined to form a cyclic structure; R6 represents an alkyl or aryl group having up to 20 carbon atoms; and Mt represents a transition metal selected from Group 7, 8, 9, 10, 11, or 12 of the Periodic Table of the Elements.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: October 20, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lisa S. Baugh, Enock Berluche, Paul V. Hinkle, Francis C. Rix
  • Patent number: 7589145
    Abstract: Disclosed herein is a polymer comprising an amorphous syndiotactic rich polyolefin comprising greater than about 50 wt % C3-C40 alpha olefins and having about 50% to less than about 80% r dyads, based on the total number of r and m dyads present in the polymer; a heat of fusion of 10 joules/g or less according to the procedure described in ASTM E 794-85; and an ash content of 1 wt % or less. A functionalized amorphous syndiotactic rich polyolefin is also disclosed, along with methods to produce and a method to use the inventive polymer.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: September 15, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrict Brant, Mun Fu Tse, Caiguo Gong, Peijun Jiang, Hideaki Wakabayashi
  • Patent number: 7557171
    Abstract: A metallocene compound comprising a transition metal, a first substituted or unsubstituted indenyl or fluorenyl ligand pi—bonded to the transition metal, a second monoanionic ligand bonded to the transition metal, and a divalent bridging group bonded to the indenyl ligand and said second monoanionic ligand, wherein said bridging group is connected to the four, five, six or seven position of the indenyl ligand or to the one, two, three, four, five, six, seven or eight position of the fluorenyl ligand, and wherein at least one of one of the first and second ligands comprises at least one halogen substituent directly bonded to any sp2 carbon atom at a bondable ring position of the ligand.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: July 7, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Mikhail V. Nikulin, Vyatcheslav V. Izmer, Andrey F. Asachenko, Alexey N. Ryabov, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7550544
    Abstract: A metallocene compound is represented by the formula (1): wherein: M is a Group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom, preferably a Group 4 transition metal atom selected from titanium, zirconium or hafnium; E is a substituted or unsubstituted monocyclic or polycyclic arenyl ligand pi-bonded to M; A is a substituted or unsubstituted polycyclic arenyl ligand that is pi-bonded to M and has a different ring structure than the E ligand; at least one of the A and E ligands includes at least one halogen substituent directly bonded to an sp2 carbon at a bondable ring position; Y is a bridging group containing at least one Group 13, 14, 15, or 16 element and any single position of the ring structure of A and to any single position of the ring structure of E; and y is zero or 1, indicating the absence (y=0) or presence (y=1) of Y; and each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joine
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: June 23, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Alexey N. Ryabov, Mikhail V. Nikulin, Alexander V. Lygin, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7538168
    Abstract: A metallocene compound comprises a transition metal and at least one substituted monocyclic or polycyclic arene ligand bonded to the transition metal, wherein said arene ligand comprises at least one halogen substituent directly bonded to an sp2 carbon atom at a bondable ring position of an aromatic five-membered ring of said arene ligand.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 26, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Alexey N. Ryabov, Mikhail V. Nikulin, Alexander V. Lygin, Vyatcheslav V. Izmer, Andrey F. Asachenko, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7514491
    Abstract: A nanocomposite of a halogenated elastomer and an inorganic, exfoliated clay, suitable for use as an air barrier, is disclosed. The halogenated elastomer can be a polymer comprising C4 to C7 isoolefin derived units, para-methylstyrene derived units, and para(halomethylstyrene) derived units, or can be a butyl-type rubber. The nanocomposite can be formed by contacting an aqueous slurry of inorganic clay with a polymer cement while agitating vigorously to form emulsions or micro-emulsions to intimately mix the inorganic clay and the elastomer. The nanocomposite so formed has improved air barrier properties and is suitable for use as an innerliner or innertube.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: April 7, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, Anthony Jay Dias, Carmen Neagu, Beverly Jean Poole, Caiguo Gong, James Richard Ayers, Kriss Randall Karp, Molly Westermann Johnston
  • Patent number: 7498381
    Abstract: The present invention provides a nanocomposite of an isobutylene-based elastomer and a phosphate nanofiller. Also disclosed is a nanocomposite embodiment wherein the elastomer is BIMSM and high aspect ratio, partially intercalated, partially exfoliated alpha-zirconium phosphate treated with amine or amide. A dispersion aid can include a low molecular weight polymer or oligomer, optionally functionalized with a polar group. The nanocomposite is suitable for use as an air barrier.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: March 3, 2009
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Yves Fernand de Puydt, Herman Robberechts, Andy H. Tsou
  • Patent number: 7479531
    Abstract: This invention relates to copolymers produced by a polymerization method comprising contacting at least one olefin monomer, at least one polar monomer, an optional activator, and a catalyst compound represented by the formula: wherein M is selected from groups 3-11 of the periodic table; L1 represents a formal anionic ligand, L2 represents a formal neutral ligand, a is an integer greater than or equal to 1; b is greater than or equal to 0; c is greater than or equal to 1, E is nitrogen or phosphorus, Ar0 is arene, R1-R4 are, each independently, selected from hydrogen, hydrocarbyl, substituted hydrocarbyl or functional group, provided however that R3 and R4 do not form a naphthyl ring, N is nitrogen and O is oxygen.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: January 20, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lisa Saunders Baugh, Enock Berluche, Paul Veinbergs Hinkle, Francis Charles Rix, Donald Norman Schulz
  • Patent number: 7459510
    Abstract: This invention relates to a process to polymerize olefins comprising contacting, in a reactor, a pyridyl-di-imine compound and an activator with one or more olefin monomer(s) in the presence of a fluorinated hydrocarbon.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: December 2, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Zerong Lin, Pradeep P. Shirodkar
  • Patent number: 7446216
    Abstract: A metallocene compound is represented by the formula (1): A2YyMXn-2 wherein: M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; each A is independently a substituted polycyclic arenyl ligand pi-bonded to M, each A ligand includes at least one halogen substituent directly bonded to an sp2 carbon at a bondable ring position and, when each A is a substituted indenyl ligand and y is equal to one and the ligand includes at least one chloro, bromo or iodo substituent at the 4, 5, or 6 position of the indenyl ligand, then A also includes at least one other substituent in the indenyl ligand selected from hydrocarbyl, substituted hydrocarbyl, halogen, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, substituted germylcarbyl, or other heteroatom substituents wherein the heteroatom is bonded directly to a ring carbon of the ring structure ligand an
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 4, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Alexey N. Ryahov, Mikhail V. Nikulin, Alexander V. Lygin, Vyatcheslav V. Izmer, Andrey F. Asachenko, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7429548
    Abstract: A This invention relates to a composition comprising a catecholate ligand, palladium or nickel, and an ancillary ligand with the following structure: where Pn is a Group-15 element; H is hydrogen; R7 and R8 are independently hydrogen or C1-C30 hydrocarbyl radicals, or both are C1-C30 hydrocarbyl radicals that form a ring structure comprising one or more aromatic or non-aromatic rings; and R13-R18 are, independently, hydrogen or C1-C30 hydrocarbyl radicals. The composition can be used to oligomerize ethylene.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: September 30, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Baiyi Zhao, Enock Berluche, Smita Kacker, Jo Ann Marie Canich
  • Patent number: 7425601
    Abstract: The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene, and an alkylstyrene, preferably methylstyrene, even more preferably para-methylstyrene, with new sequence distributions. The copolymer may optionally be halogenated.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 16, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Yen-Lung Chung, Timothy Daniel Shaffer
  • Patent number: 7423101
    Abstract: The present invention is directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, mono- or di-anionic tridentate nitrogen/oxygen based ligands that are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. For the purposes of this disclosure, “?-olefins” includes ethylene. The present invention is also directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, bidentate nitrogen/oxygen based ligands that are useful to polymerize olefins, particularly ?-olefins, or other unsaturated monomers.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: September 9, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gregory A. Solan, Christopher J. Davies
  • Patent number: 7423103
    Abstract: This invention is directed to a polymerization process that is carried out at relatively high productivity levels and with relatively low fouling. The process includes mixing together a catalyst system, at least one monomer and a hydrofluorocarbon to produce the polymer. The reaction is carried out such that little to no chlorine containing hydrocarbons are present.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: September 9, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kevin B. Stavens, Robert O. Hagerty, Randall B. Laird, Zerong Lin, Michael A. Risch, Larry L. Iaccino