Patents Assigned to TREDEGAR SURFACE PROTECTION, LLC
  • 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