Patents by Inventor Ranadip GANGULY

Ranadip GANGULY 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: 11732070
    Abstract: This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: August 22, 2023
    Assignee: Braskem America, Inc.
    Inventor: Ranadip Ganguly
  • Publication number: 20230235105
    Abstract: Polypropylenes and impact copolymers with low organic volatiles. The impact copolymers comprising a polypropylene and within a range from 5 wt% to 40 wt% of an ethylene-propylene copolymer or rubber, by weight of the impact copolymer; wherein the polypropylene has a melt flow rate within a range from 100 g/10 min to 400 g/10 min, and the impact copolymer has a melt flow rate within a range from 15 g/10 min to 150 g/10 min; and wherein there are less than 1000 µg of oligomer per gram of impact copolymer. The polymers may be made by combining olefins with the reaction product of a solid magnesium compound and a halogen-containing titanium compound with at least one phthalic acid ester compound and at least one diether compound as internal electron donors.
    Type: Application
    Filed: July 12, 2021
    Publication date: July 27, 2023
    Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Todd S. EDWARDS, Christopher G. BAUCH, Ranadip GANGULY, Xiaodan ZHANG
  • Publication number: 20230077569
    Abstract: Processes for forming a polypropylene composition are provided herein comprising the steps of making a first propylene-based copolymer having a molecular weight distribution between 3 to 8.5, and making a second propylene-based polymer in the presence of the first propylene-based polymer to produce the polypropylene composition having a high molecular weight tail in the amount of between 1.0 wt. % and 10.0 wt. %. The polypropylene compositions produced have a broad molecular weight distribution and high molecular weight tail to provide improved stiffness while retaining toughness.
    Type: Application
    Filed: February 12, 2021
    Publication date: March 16, 2023
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: George J. PEHLERT, Ranadip GANGULY, Christopher G. BAUCH, Blu E. ENGLEHORN, Xiaodan ZHANG, Mark S. CHAHL, Kevin W. LAWSON, Xuejia YAN
  • Publication number: 20220306849
    Abstract: The present disclosure relates to a thermoplastic vulcanizate including a polypropylene and a copolymer. The copolymer may have an ethylene content, a propylene content, and an a, ?,?-diene content. The thermoplastic vulcanizate has a shore hardness of about 20 Shore A or greater. Alternatively, a thermoplastic vulcanizate may include a polypropylene and an elastomeric polymer and have a shore hardness of about 50 MPa or greater, a tensile strength at yield of about 18 MPa or greater, and an oil swell of about 15% weight gain or less. Additionally, the present disclosure relates to processes for producing thermoplastic vulcanizates. A process may include introducing a catalyst and propylene to a first reactor to form a first polymer, and introducing the first polymer, ethylene, at least one ?,?-diene, and optionally additional propylene to a second reactor to form an impact copolymer. The process may further include crosslinking the impact copolymer.
    Type: Application
    Filed: October 13, 2020
    Publication date: September 29, 2022
    Inventors: Antonios K. Doufas, Krishnan Anantha Narayana Iyer, Zerong Lin, Ranadip Ganguly
  • Publication number: 20220056176
    Abstract: This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.
    Type: Application
    Filed: November 3, 2021
    Publication date: February 24, 2022
    Inventor: Ranadip GANGULY
  • Patent number: 11192968
    Abstract: This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 7, 2021
    Assignee: BRASKEM AMERICA, INC.
    Inventor: Ranadip Ganguly
  • Publication number: 20180282448
    Abstract: This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.
    Type: Application
    Filed: March 14, 2018
    Publication date: October 4, 2018
    Inventor: Ranadip GANGULY