Patents by Inventor Mrinal Kanti Banerjee

Mrinal Kanti Banerjee 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: 11173688
    Abstract: The present disclosure relates to a laminate comprising: an outer polyethylene layer comprises at least 10% on the weight of polyethylene, a UV radiation blocking agent or a chromophore; a barrier layer with at least 15%-50% of an aromatic polyamide; and a polyethylene sealant layer. The Ultra Violet radiation resistant laminate is an opaque laminate or a transparent laminate. The outer polyethylene layer and the barrier layer with at least one aromatic polyamide is a multilayer film, preferably three layer film. The present disclosure also relates to a process for the preparation of the laminate.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: November 16, 2021
    Assignee: ESSEL PROPACK LTD.
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
  • Patent number: 10730270
    Abstract: The present disclosure provides a metallized polyethylene laminate comprising: an outer polyethylene layer; a metallized acid copolymer layer; an inner polyethylene layer in contact with the metallized acid copolymer layer; and optionally an extruded polyethylene layer; and a sealant layer of polyethylene.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: August 4, 2020
    Assignee: Essel Propack Ltd.
    Inventors: Mrinal Kanti Banerjee, Chandrashekhar Ramchandra Abhyankar
  • Patent number: 10513096
    Abstract: In accordance with the present subject matter there is provided a laminate for vignette and tonal image printing comprising: a top printable layer of polyethylene polymer selected from the group consisting of metallocene linear low density polyethylene (mLLDPE), linear low density polyethylene (LLDPE) with high melt flow index (MFI), low density polyethylene (LDPE), and combinations thereof; a middle layer comprising of at least one surface film layer of a blend of linear low density polyethylene (LLDPE), and high density polyethylene (HDPE); a inner polyethylene (PE) layer; wherein said printable layer exhibits a gel count in the range of 1-10 per sqm. There is also provided a process for manufacturing the laminate for vignette and tonal image printing.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 24, 2019
    Assignee: Essel Propack Limited
    Inventor: Mrinal Kanti Banerjee
  • Publication number: 20190217577
    Abstract: The present disclosure relates to a multilayer film laminate comprising: a printable film layer; a first aluminium layer between first co-extruded bond layer and second mono-extruded bond layer, wherein the first co-extruded bond layer is between the printable film layer and the first aluminium layer; a second aluminium layer is between second mono-extruded and third co-extruded bond layers; and a sealant layer adjacent to the third co-extruded layer, wherein the first and second aluminium layer independently have a thickness in the range of 9-20 microns. The present disclosure also relates to the process of manufacturing the multilayer film laminate.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventor: Mrinal Kanti Banerjee
  • Patent number: 10214639
    Abstract: The present disclosure relates to a post consumer recycled polymer composition comprising: 80% to 95% (w/w) of a post consumer recycled resin; and 5% to 20% (w/w) of at least one additive. The present disclosure further relates to a laminate comprising: an outer layer of a post consumer recycled polymer composition; a middle layer of post consumer recycled polymer composition; and an inner layer of virgin resins. The present disclosure also relates to a process for manufacturing tubes comprising: extrusion of post consumer recycled polymer composition comprising 80% to 95% (w/w) of an post consumer recycled resin; and 5% to 20% (w/w) of at least one additive, through a circular slit to form a long cylindrical hollow pipe; slicing the long cylindrical hollow pipe to form tube sleeves; forming tube shoulder and neck; and attaching the tube shoulder and the neck to the tube sleeves to obtain a tube.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: February 26, 2019
    Assignee: Essel Propack Ltd.
    Inventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
  • Patent number: 10189197
    Abstract: The present disclosure describes soft and velvet touch barrier laminate with customized polymer alloying which is dry or wet blending of multiple polymers, additives and colorant and making a single compounded polymer mix with designated characteristics. The soft and velvet touch barrier laminate can be used to prepare articles having soft outer surface with a mat finish.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 29, 2019
    Assignee: ESSEL PROPACK LIMITED
    Inventor: Mrinal Kanti Banerjee
  • Publication number: 20180281360
    Abstract: In accordance with the present subject matter there is provided a laminate for vignette and tonal image printing comprising: a top printable layer of polyethylene polymer selected from the group consisting of metallocene linear low density polyethylene (mLLDPE), linear low density polyethylene (LLDPE) with high melt flow index (MFI), low density polyethylene (LDPE), and combinations thereof; a middle layer comprising of at least one surface film layer of a blend of linear low density polyethylene (LLDPE), and high density polyethylene (HDPE); a inner polyethylene (PE) layer; wherein said printable layer exhibits a gel count in the range of 1-10 per sqm. There is also provided a process for manufacturing the laminate for vignette and tonal image printing.
    Type: Application
    Filed: January 6, 2017
    Publication date: October 4, 2018
    Applicant: Essel Propack Limited
    Inventor: Mrinal Kanti Banerjee
  • Patent number: 9937686
    Abstract: The present disclosure relates to a multi-layer barrier film comprising: a first layer of an ethylene vinyl alcohol (EVOH) layer or a polyamide layer having a thickness in the range of 3 micron to 15 micron; a second layer of a polyamide layer having a thickness in the range of 3 micron to 15 micron in contact with the first layer; and a third layer of an ethylene vinyl alcohol (EVOH) layer having a thickness in the range of 3 micron to 15 micron. The present disclosure also relates to a multi-layered laminate comprising the multi-layer barrier film, and the process of making the same.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: April 10, 2018
    Assignee: ESSEL PROPACK LIMITED
    Inventor: Mrinal Kanti Banerjee
  • Publication number: 20180079124
    Abstract: The present disclosure describes soft and velvet touch barrier laminate with customized polymer alloying which is dry or wet blending of multiple polymers, additives and colorant and making a single compounded polymer mix with designated characteristics. The soft and velvet touch barrier laminate can be used to prepare articles having soft outer surface with a mat finish.
    Type: Application
    Filed: May 27, 2016
    Publication date: March 22, 2018
    Inventor: Mrinal Kanti BANERJEE
  • Patent number: 9731480
    Abstract: The present disclosure provides a polyester film based laminate comprising: an outer polyethylene layer; a core layer of a printed polyester film; and an inner polyethylene layer; an article made of said laminate. The printing on the said polyester film based laminate can be a reverse printing. The present disclosure further provides a method for producing a polyester film based laminate.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: August 15, 2017
    Assignee: Essel Propack Limited
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
  • Patent number: 9586384
    Abstract: The present invention in provides a multilayer sheet comprising a poly vinyl alcohol (PVOH) layer only as an oxygen barrier layer. The multilayer sheet comprises an outer layer and an inner layer wherein the poly vinyl alcohol (PVOH) layer is sandwiched. The present invention also provides an environmental friendly method for manufacturing a multilayer sheet comprising preparing aqueous emulsion of the polyvinyl alcohol and applying over the outer sheet and drying the same at about 100-120° C. This multilayer sheet can be recycled very efficiently as the percentage of polyethylene is more than 90%.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 7, 2017
    Assignee: Essel Propack Ltd.
    Inventor: Mrinal Kanti Banerjee
  • Patent number: 9574686
    Abstract: The present disclosure relates to a laminated article with an invisible seam. The laminated article, in accordance with the present disclosure, is a laminate tube or lamitube. The present disclosure also relates to a process for manufacturing of laminated articles with substantially invisible seam.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: February 21, 2017
    Assignee: Essel Propack Ltd.
    Inventor: Mrinal Kanti Banerjee
  • Patent number: 9555601
    Abstract: The present subject matter relates to a laminate comprising: an outer layer of 50% to 70% of High Density Polyethylene (HDPE) and 50% to 30% of Linear Low Density Polyethylene (LLDPE); an aluminum core layer disposed between Ethylene Acrylic Acid (EAA) layers; and an inner layer of about 50% to 70% of High Density Polyethylene (HDPE) and 50% to 30% of Linear Low Density Polyethylene (LLDPE). The outer polyethylene layer or inner polyethylene layer is a multilayer film, preferably three layer film. The present subject matter also relates to a process for the preparation of the laminate.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 31, 2017
    Assignee: ESSEL PROPACK LTD.
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
  • Publication number: 20170008247
    Abstract: The present relates a laminate comprising: an outer polyethylene (PE) layer; a first adhesive layer; a substrate layer with one side selectively vacuum metalized or selectively reverse printed and said printed or metalized side is toward first adhesive layer; a second adhesive layer; an ethylene vinyl alcohol (EVOH) polymer barrier film layer; an linear density polyethylene (LDPE) extrusion layer; and an inner polyethylene (PE) layer. The present disclosure further relates to tubes made of the partially opaque and partially clear laminate. The present disclosure also relates to a process of manufacturing of tubes using the said laminate.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Inventors: Tapan Kumar Banerjee, Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
  • Patent number: 9486987
    Abstract: The present relates a laminate comprising: an outer polyethylene (PE) layer; a first adhesive layer; a substrate layer with one side selectively vacuum metalized or selectively reverse printed and said printed or metalized side is toward first adhesive layer; a second adhesive layer; an ethylene vinyl alcohol (EVOH) polymer barrier film layer; an linear density polyethylene (LDPE) extrusion layer; and an inner polyethylene (PE) layer. The present disclosure further relates to tubes made of the partially opaque and partially clear laminate. The present disclosure also relates to a process of manufacturing of tubes using the said laminate.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 8, 2016
    Assignee: Essel Propack Ltd.
    Inventors: Tapan Kumar Banerjee, Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
  • Patent number: 9193509
    Abstract: The present disclosure relates to a dual barrier laminate structure, particularly suitable for aggressive or moisture containing products. The present disclosure also relates to a plastic based laminate (PBL) or an aluminum based laminate (ABL) comprising the said dual barrier laminate.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 24, 2015
    Assignee: ESSEL PROPACK LIMITED
    Inventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
  • Patent number: 9186872
    Abstract: The present invention provides a method for manufacturing a multilayer flexible sheet and a multilayer flexible sheet. The method for manufacturing a multilayer sheet comprises steps of metalizing atleast one of the surfaces of a core polymer layer; priming the metalized surface of the core polymer layer with a primer; extrusion laminating the primed surface of the core polymer layer with polyolefin and/or co-polymer of polyolefin; and co-extruding first heat sealable layer over the extrusion laminated layer. The multilayer polymer sheet of the present invention atleast comprises a core layer having one of the polymer sides plasma treated, a metal layer deposited on the plasma treated side of the core layer, a primer layer applied on the metalized surface of the core layer, an extrusion polymer lamination layer of poiyolefin and/or copolymer of polyolefin and a heat sealable layer on the extrusion polymer lamination layer.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: November 17, 2015
    Assignee: Essel Propack Ltd.
    Inventor: Mrinal Kanti Banerjee
  • Publication number: 20150183192
    Abstract: The present disclosure provides a polyester film based laminate comprising: an outer polyethylene layer; a core layer of a printed polyester film; and an inner polyethylene layer; an article made of said laminate. The printing on the said polyester film based laminate can be a reverse printing. The present disclosure further provides a method for producing a polyester film based laminate.
    Type: Application
    Filed: June 14, 2012
    Publication date: July 2, 2015
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
  • Publication number: 20150158278
    Abstract: The present disclosure relates to a multi-layer barrier film comprising: a first layer of an ethylene vinyl alcohol (EVOH) layer or a polyamide layer having a thickness in the range of 3 micron to 15 micron; a second layer of a polyamide layer having a thickness in the range of 3 micron to 15 micron in contact with the first layer; and a third layer of an ethylene vinyl alcohol (EVOH) layer having a thickness in the range of 3 micron to 15 micron. The present disclosure also relates to a multi-layered laminate comprising the multi-layer barrier film, and the process of making the same.
    Type: Application
    Filed: November 12, 2012
    Publication date: June 11, 2015
    Applicant: Essel Propack Ltd.
    Inventor: Mrinal Kanti Banerjee
  • Publication number: 20140346172
    Abstract: A tamper-evident closure (100) is described, wherein the tamper-evident closure (100) comprises a body (102), a cap portion (104) coupled to the body (102) by a joint (106), and a tab (124) attached to a closure body skirt (122) of the body (102) to provide a space (126) between the closure body skirt (122) and the tab (124) to accommodate a lip portion (114) of the cap portion (104). Further, an inset (129) is provided below the tab (124) in the body skirt (122), wherein the tab (124) and the closure body skirt (122) are attached to one another by a seal.
    Type: Application
    Filed: August 30, 2012
    Publication date: November 27, 2014
    Applicant: ESSEL PROPACK LIMITED
    Inventors: Mrinal Kanti Banerjee, Chandrashekhar Ramchandra Abhyankar, Avinash Velandy Mukkolath