Patents by Inventor UTPAL HALDAR

UTPAL HALDAR 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: 20220314586
    Abstract: This disclosure relates generally to composite polymer product applications. In one embodiment, a composite polymer flooring tile is disclosed, comprising: a core layer; a print layer applied to a surface of the core layer, the print layer including a decorative design; a wear layer applied to a surface of the print layer; a primer layer applied to a surface of the wear layer; a sanding layer applied to a surface of the primer layer, wherein the sanding layer includes a surface smoothened by sandblasting; an abrasive layer applied to the smoothened surface of the sanding layer, the abrasive layer including wear resistant particles; and a gloss layer applied to a surface of the abrasive layer; wherein a gloss level of the tile is at least 90% at 60° as measured according to ASTM D523 and EN 16094; and wherein the tile meets EPLF abrasion criteria (“AC”) rating of at least AC3.
    Type: Application
    Filed: January 11, 2022
    Publication date: October 6, 2022
    Applicant: Welspun Flooring Limited
    Inventors: Dipali GOENKA, Utpal HALDAR
  • Publication number: 20210010166
    Abstract: The present disclosure generally relates to bi-component continuous filaments and articles made therefrom. In one embodiment, a bi-component continuous filament is disclosed, comprising a first polymer component forming a sheath; a second polymer component comprising a core that is surrounded by the sheath; and a binding agent adhering the first polymer component to the second polymer component along a length of the filament; wherein an elongation of the bi-component continuous filament is between 33.6±5.0?60.4±5.0 percent; and wherein a tenacity of the bi-component continuous filament is between 1.9±0.2?3.9±0.2 grams per denier (GPD). In some embodiments, the first polymer component comprises a polyamide, polyester, or polyolefin material, preferably a cationic polyamide or a cationic polyester, the second polymer component comprises polyethylene terephthalate (PET), and the binding agent comprises a polyolefin modified by maleic anhydride.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 14, 2021
    Applicant: WELSPUN FLOORING LIMITED
    Inventors: Dipali Goenka, Utpal Haldar
  • Patent number: 10760186
    Abstract: A bi-component continuous filament has a sheath-core arrangement including a first polymer component forming a sheath and including a polyamide, a polyolefin, or a polyester; a second polymer component forming a core and including a polyamide, a polyolefin, or a polyester; and a binding agent adhering the first polymer component to the second polymer component along a length of the filament such that the filament has a generally uniform cross-sectional shape along the length. The binding agent preferably includes a polyolefin modified by an acid anhydride. Articles made from such bi-component continuous filaments include, for example, bulk continuous filament (BCF) fibers and floor coverings, such as mats, rugs, and carpets.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 1, 2020
    Assignee: Welspun Flooring Limited
    Inventors: Dipali Goenka, Utpal Haldar
  • Publication number: 20180347077
    Abstract: A woven fabric includes a plurality of warp yarns and a plurality of weft yarns interwoven with the plurality of warp yarns to define the woven fabric. Multiple weft yarns are inserted through the shed during weaving cycle to form higher thread count fabrics.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 6, 2018
    Inventors: Dipali Goenka, Subrata Palit, Utpal Haldar, Rajender Sharma
  • Publication number: 20180282908
    Abstract: A bi-component continuous filament has a sheath-core arrangement including a first polymer component forming a sheath and including a polyamide, a polyolefin, or a polyester; a second polymer component forming a core and including a polyamide, a polyolefin, or a polyester; and a binding agent adhering the first polymer component to the second polymer component along a length of the filament such that the filament has a generally uniform cross-sectional shape along the length. The binding agent preferably includes a polyolefin modified by an acid anhydride. Articles made from such bi-component continuous filaments include, for example, bulk continuous filament (BCF) fibers and floor coverings, such as mats, rugs, and carpets.
    Type: Application
    Filed: July 31, 2017
    Publication date: October 4, 2018
    Inventors: DIPALI GOENKA, UTPAL HALDAR