Patents by Inventor Bankim Bhupendra DESAI

Bankim Bhupendra DESAI 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: 11732161
    Abstract: A masking film includes an adhesion layer that includes a blend of hydrogenated styrene block copolymer and low density polyethylene. The adhesion layer has an outer adhesion surface configured to contact a substrate. The outer adhesion surface has an average surface roughness Ra of between 100 nm and 350 nm, and an average spacing between peaks Sm of between 20 ?m and 150 ?m. The masking film also includes a release layer on a side of the adhesion layer opposite the outer adhesion surface.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: August 22, 2023
    Assignee: TREDEGAR SURFACE PROTECTION, LLC
    Inventors: Gregory K. Jones, Bankim Bhupendra Desai, Carl Douglas Ray, Sukwoo Park, Kevin A. Brady
  • Patent number: 11230417
    Abstract: A film for use as an interleaf between substrates includes a first side having a first micro-embossed surface and a first formed pattern, a second side having a second micro-embossed surface and a second formed pattern, a basis weight of between about 35 gsm and about 80 gsm, a Low Load Thickness of between about 150 micrometers and 400 micrometers according to the Low Load Thickness Test, and a flexural stiffness of between about 150 grams and about 500 grams according to the Circular Bend Stiffness Test.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: January 25, 2022
    Assignee: TREDEGAR SURFACE PROTECTION, LLC
    Inventors: Carl Douglas Ray, Bankim Bhupendra Desai
  • Patent number: 11192338
    Abstract: Films may be used as interleaves between hard and non-compressible surfaces such as surfaces of sheets or plates made of glass, metal, such as steel, polycarbonate, and/or poly(methyl methacrylate). The films may be embossed and/or may include a foamed core layer having a plurality of micro-voids. In particular, the films may include a polyolefin, a basis weight of between about 30 gsm and about 70 gsm, an embossed thickness of between about 150 microns and 800 microns, and a stiffness of between about 150 grams and about 750 grams according to the Circular Bend Stiffness Test.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 7, 2021
    Assignee: TREDEGAR SURFACE PROTECTION, LLC
    Inventors: Bankim Bhupendra Desai, Carl Douglas Ray, Ricky Santoso, Shailesh Chunilal Patel, Kevin A. Brady
  • Patent number: 11141955
    Abstract: Films may be used as interleaves between hard and non-compressible surfaces such as surfaces of sheets or plates made of glass, metal, such as steel, polycarbonate, and/or poly(methyl methacrylate). The films may be embossed and/or may include a foamed core layer having a plurality of micro-voids. In particular, the films may include a polyolefin, a basis weight of between about 30 gsm and about 70 gsm, an embossed thickness of between about 150 microns and 800 microns, and a stiffness of between about 150 grams and about 750 grams according to the Circular Bend Stiffness Test.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: October 12, 2021
    Assignee: TREDEGAR SURFACE PROTECTION, LLC
    Inventors: Bankim Bhupendra Desai, Carl Douglas Ray, Ricky Santoso, Shailesh Chunilal Patel, Kevin A. Brady
  • Publication number: 20200231348
    Abstract: A film for use as an interleaf between substrates includes a first side having a first micro-embossed surface and a first formed pattern, a second side having a second micro-embossed surface and a second formed pattern, a basis weight of between about 35 gsm and about 80 gsm, a Low Load Thickness of between about 150 micrometers and 400 micrometers according to the Low Load Thickness Test, and a flexural stiffness of between about 150 grams and about 500 grams according to the Circular Bend Stiffness Test.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 23, 2020
    Inventors: Carl Douglas RAY, Bankim Bhupendra DESAI
  • Publication number: 20200190371
    Abstract: A masking film includes an adhesion layer that includes a blend of hydrogenated styrene block copolymer and low density polyethylene. The adhesion layer has an outer adhesion surface configured to contact a substrate. The outer adhesion surface has an average surface roughness Ra of between 100 nm and 350 nm, and an average spacing between peaks Sm of between 20 ?m and 150 ?m. The masking film also includes a release layer on a side of the adhesion layer opposite the outer adhesion surface.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Inventors: Gregory K. JONES, Bankim Bhupendra DESAI, Carl Douglas RAY, Sukwoo PARK, Kevin A. BRADY
  • Publication number: 20200002489
    Abstract: A method of forming a thermoplastic polymer film includes melting and subjecting a polymer resin material to shear stresses in a range of 250 kPa to 400 kPa to form a refined resin material and forming the thermoplastic polymer film from the refined resin material. The film is substantially free of microgels having a largest dimension greater than 50 microns. The film has a thickness in a range of 15 micron to 80 microns. The film has a microgel count in a range of 0 to 0.2 per mm2 of microgels having the maximum dimension greater than 10 microns.
    Type: Application
    Filed: August 20, 2019
    Publication date: January 2, 2020
    Inventors: Carl Douglas Ray, Shailesh Chunilal Patel, Bankim Bhupendra Desai, James Mason Yourshaw
  • Publication number: 20190111662
    Abstract: Films may be used as interleaves between hard and non-compressible surfaces such as surfaces of sheets or plates made of glass, metal, such as steel, polycarbonate, and/or poly(methyl methacrylate). The films may be embossed and/or may include a foamed core layer having a plurality of micro-voids. In particular, the films may include a polyolefin, a basis weight of between about 30 gsm and about 70 gsm, an embossed thickness of between about 150 microns and 800 microns, and a stiffness of between about 150 grams and about 750 grams according to the Circular Bend Stiffness Test.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Inventors: Bankim Bhupendra DESAI, Carl Douglas RAY, Ricky SANTOSO, Sailesh Chunilal PATEL, Kevin A. BRADY
  • Patent number: 10150896
    Abstract: An illustrative aspect of the invention provides a film comprising a release layer defining a first outer film surface and an adhesion layer defining a second outer film surface opposite the first outer film surface. The adhesion layer comprises a hydrogenated styrene block copolymer with a styrene content in a range of about 30% to 40% by weight. In some embodiments, the adhesion layer may further comprise low density polyethylene (LDPE). In some embodiments, the adhesion layer may further comprise LDPE and high density polyethylene (HDPE).
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: December 11, 2018
    Assignee: TREDEGAR FILM PRODUCTS CORPORATION
    Inventors: Ricky Santoso, Shailesh Chunilal Patel, Carl Douglas Ray, Bankim Bhupendra Desai
  • Publication number: 20160355650
    Abstract: A method of refining a polymer resin material is provided. The method comprises melting and subjecting the resin material to shear stresses in a range of 250 kPa to 400 kPa to form a refined resin material. The refined resin material may be extruded, solidified and cut into reduced microgel resin pellets, which may be subsequently melted and extruded to form a reduced microgel film.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Inventors: Carl Douglas Ray, Shailesh Chunilal Patel, Bankim Bhupendra Desai, James Mason Yourshaw
  • Publication number: 20160177151
    Abstract: An illustrative aspect of the invention provides a film comprising a release layer defining a first outer film surface and an adhesion layer defining a second outer film surface opposite the first outer film surface. The adhesion layer comprises a hydrogenated styrene block copolymer with a styrene content in a range of about 30% to 40% by weight. In some embodiments, the adhesion layer may further comprise low density polyethylene (LDPE). In some embodiments, the adhesion layer may further comprise LDPE and high density polyethylene (HDPE).
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Ricky SANTOSO, Shailesh Chunilal PATEL, Carl Douglas RAY, Bankim Bhupendra DESAI