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).

  • Propylene olefin copolymers
    Publication number: 20060128899
    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 13, 2006
    Publication date: June 15, 2006
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Alpha-Olefin/Propylene Copolymers and Their Use
    Publication number: 20060128897
    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 9, 2006
    Publication date: June 15, 2006
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Blends made from propylene ethylene polymers
    Publication number: 20060122334
    Abstract: Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the first polymer component will exhibit a statistically insignificant intramolecular difference of tacticity.
    Type: Application
    Filed: January 20, 2006
    Publication date: June 8, 2006
    Inventors: Charles Cozewith, Sudhin Datta, Weiguo Hu
  • Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers
    Patent number: 7056982
    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: August 26, 2005
    Date of Patent: June 6, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Propylene alpha-olefin polymers
    Patent number: 7056992
    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: December 9, 2005
    Date of Patent: June 6, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Process for producing propylene alpha-olefin polymers
    Patent number: 7056993
    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: December 9, 2005
    Date of Patent: June 6, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Thermoplastic polymer blends of isotactic polypropropylene and alpha-olefin/propylene copolymers
    Patent number: 7053164
    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: August 26, 2005
    Date of Patent: May 30, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Propylene alpha-olefin polymer blends
    Patent number: 7049372
    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: December 9, 2005
    Date of Patent: May 23, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Propylene olefin copolymers
    Publication number: 20060100383
    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: December 9, 2005
    Publication date: May 11, 2006
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Elastic blends comprising crystalline polymer and crystallizable polymers of propylene
    Publication number: 20060100384
    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: December 9, 2005
    Publication date: May 11, 2006
    Inventors: Sudhin Datta, Charles Cozewith, Periagaram Ravishankar, Edmund Stachowski
  • Propylene alpha-olefin polymers
    Publication number: 20060094826
    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: December 9, 2005
    Publication date: May 4, 2006
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Propylene alpha-olefin polymer blends
    Publication number: 20060089460
    Abstract: Improved thermoplastic polymer blend compositions comprising an isotadtic 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: December 9, 2005
    Publication date: April 27, 2006
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Process for producing propylene alpha-olefin polymers
    Publication number: 20060089471
    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: December 9, 2005
    Publication date: April 27, 2006
    Inventors: Sudhin Datta, Avinash Gadkari, Charles Cozewith
  • Blends made from propylene ethylene polymers
    Patent number: 7034078
    Abstract: Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the first polymer component will exhibit a statistically insignificant intramolecular difference of tacticity.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: April 25, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Charles C. Cozewith, Sudhin Datta, Weiguo Hu
  • Thermoplastic filled membranes of propylene copolymers
    Patent number: 7026403
    Abstract: The invention relates to a thermoplastic membrane (e.g. film, fluid barrier, and the like) which is formed from a blend of: a) a first polymer component (FPC), wherein said FPC comprises a propylene-ethylene copolymer containing from 80 to 93 percent by weight of units derived from propylene, and having a melting point derived from stereoregular polypropylene sequences, as determined by differential scanning calorimetry (DSC), in the range of from 25° C. to 70° C., and a heat of fusion of from 2 J/g to 25 J/g; b) an inorganic filler; c) a processing oil, and d) optionally, a second polymer component (SPC), wherein said SPC is a stereoregular polypropylene containing less than 7 percent by weight of units derived from ethylene or alpha-olefin monomer containing from 4 to 8 carbon atoms and having melting point, as determined by DSC, greater than 130° C., and a heat of fusion greater than 80 J/g.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: April 11, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: N. Raja Dharmarajan, Mike C. Bulawa, Sudhin Datta, Andy H. Tsou
  • Blends made from propylene ethylene polymers
    Patent number: 7026405
    Abstract: Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the first polymer component will exhibit a statistically insignificant intramolecular difference of tacticity.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: April 11, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Charles C. Cozewith, Sudhin Datta, Weiguo Hu
  • Articles made from blends made from propylene ethylene polymers
    Patent number: 7026404
    Abstract: Articles made from polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the first polymer component will exhibit a statistically insignificant intramolecular difference of tacticity.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: April 11, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Charles Cozewith, Sudhin Datta, Weiguo Hu
  • Polymers for electrical applications
    Publication number: 20060074177
    Abstract: Electrical insulation compounds are disclosed, the insulation compounds including an ethylene polymer comprising at least 40 wt % ethylene-derived units and having a density of ?0.91 g/cm3 and a propylene polymer comprising at least 75 wt % propylene-derived units and having an isotactic propylene triad tacticity of from 65% to 99%. Also disclosed are electrical devices including the electrical insulation compounds.
    Type: Application
    Filed: October 5, 2004
    Publication date: April 6, 2006
    Inventors: Narayanaswami Dharmarajan, Sudhin Datta
  • Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers
    Patent number: 7019081
    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: July 3, 2003
    Date of Patent: March 28, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith
  • Compositions of polypropylene and polyamide
    Patent number: 7015283
    Abstract: The invention relates to thermoplastic compositions in which (A) an isotactic polypropylene, optionally containing comonomer, with a melting point of at least 110° C. and (B) a polyamide, (A) and (B) constituting at least 70 wt %, are blended with (C) at least 2 wt % of a grafted functionalized propylene-based elastomer having isotactic crystallinity and containing at least 0.25 wt % of MAH-derived units based on the total weight of (C). Optionally (D) an ungrafted polyolefin may be added with a melting point of less than 100° C., (C) and (D) combined being at least 8 wt % and the wt % of (A), (B), (C) and (D) being calculated on the basis of the total polymer weight of the thermoplastic composition.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: March 21, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jean-Roch Schauder, Guy Joseph Wouters, Sudhin Datta