Patents by Inventor Sudhin Datta

Sudhin Datta 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: 20060036042
    Abstract: Compositions are provided having from 70 wt % to 95 wt % of a polymer selected from homopolymers and random copolymers of propylene and from 5 wt % to 30 wt % of a miscible hydrocarbon resin with a glass transition temperature greater than 20° C. The polymer has a heat of fusion of less than 50 J/g, a melt index (MI) of less than 20 dg/min, and contains stereoregular propylene crystallinity. Also provided are films containing such compositions, and articles, such as diapers or incontinence garments, including such films.
    Type: Application
    Filed: October 7, 2005
    Publication date: February 16, 2006
    Inventors: Christopher Curry, Sudhin Datta
  • Publication number: 20060025531
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: August 3, 2005
    Publication date: February 2, 2006
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Patent number: 6992160
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 31, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Patent number: 6992159
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 31, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Patent number: 6992158
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 31, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Publication number: 20060009595
    Abstract: This invention relates to a compound represented by the formula: where M is a transition metal selected from group 4 of the periodic table; each R1 is independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl and functional group, and any two R1 may be linked, provided that if the two R1 groups are linked, then they do not form a butadiene group when M is Zr; each R2 is independently selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl, hexyl and the isomers thereof, provided that when R3 and R6 and or R12 and R15 form a 5 carbon ring, then each R2 is independently selected from the group consisting of ethyl, propyl, butyl, pentyl, hexyl and the isomers thereof; R3 is carbon or silicon; R4 is hydrogen, hydrocarbyl, substituted hydrocarbyl or a functional group; a is 0, 1, or 2; R5 is hydrogen, hydrocarbyl, substituted hydrocarbyl or a functional group, R4 and R5 may be bound together to form a ring, and R5 and R3 may be bound together t
    Type: Application
    Filed: July 8, 2005
    Publication date: January 12, 2006
    Inventors: Francis Rix, Smita Kacker, Sudhin Datta, Rul Zhao, Vetkav Eswaran
  • Patent number: 6984696
    Abstract: Compositions are provided having from 70 wt % to 95 wt % of a polymer selected from homopolymers and random copolymers of propylene and from 5 wt % to 30 wt % of a miscible hydrocarbon resin with a glass transition temperature greater than 20° C. The polymer has a heat of fusion of less than 50 J/g, a melt index (MI) of less than 20 dg/min, and contains stereoregular propylene crystallinity. Also provided are films containing such compositions, and articles, such as diapers or incontinence garments, including such films.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 10, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Curry, Sudhin Datta
  • Publication number: 20060004146
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: August 26, 2005
    Publication date: January 5, 2006
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Publication number: 20060004145
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: August 26, 2005
    Publication date: January 5, 2006
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Patent number: 6982310
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 3, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Publication number: 20050288444
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: August 3, 2005
    Publication date: December 29, 2005
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Publication number: 20050282963
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: August 3, 2005
    Publication date: December 22, 2005
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Publication number: 20050282964
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: August 26, 2005
    Publication date: December 22, 2005
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Publication number: 20050209405
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: May 6, 2005
    Publication date: September 22, 2005
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Publication number: 20050209407
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: May 6, 2005
    Publication date: September 22, 2005
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Publication number: 20050209406
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: May 6, 2005
    Publication date: September 22, 2005
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Publication number: 20050203252
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: May 6, 2005
    Publication date: September 15, 2005
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Publication number: 20050197461
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comprising from about 35% to about 85% isotactic polypropylene and from about 30% to about 70% of an ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and improved process characteristics, e.g., a single melting point.
    Type: Application
    Filed: February 1, 2005
    Publication date: September 8, 2005
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Patent number: 6939918
    Abstract: The present invention provides a thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing rubber within a blend that includes the rubber and a thermoplastic resin, where the rubber comprises an elastomeric copolymer of ethylene, at least one ?-olefin, and optionally one or more diene monomers, where the elastomeric copolymer is characterized by having a crystallinity, as measured by differential scanning calorimetry, of less than 10 J/g, an ethylene content that is less than 90 mole percent based upon the entire copolymer, a weight average molecular weight that is greater than about 20,000 as measured by GPC with polystyrene standards, a molecular weight distribution that is less than 7, and an ethylene compositional distribution that is less than about 4 percent for the closest 90 percent of fractioned samples.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 6, 2005
    Assignee: Advanced Elastomer Systems L.P.
    Inventors: Maria D. Ellul, Sudhin Datta, Jianya Cheng, Paul McDaniel, Kang-Bo Wang
  • Publication number: 20050176888
    Abstract: Articles made from propylene ethylene copolymers with an ethylene content between 8 and 32 mole % have been grafted with maleic anhydride and a peroxide. The functionality level is higher than what is reported with polypropylene.
    Type: Application
    Filed: March 8, 2005
    Publication date: August 11, 2005
    Inventors: Jean-Roch Schauder, Sudhin Datta