Patents Assigned to ESSEL PROPACK LTD.
  • 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: 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: 9994002
    Abstract: The present disclosure provides a polymer composition comprising: at least one low density polyethylene (LDPE); at least one linear low density polyethylene (LLDPE); and a nucleating agent in an amount in the range of 1.5% to 3.0% w/w of the total weight of the composition; wherein the low density polyethylene and the linear low density polyethylene are in a ratio in the range of 1:1 to 3:1 w/w. The present disclosure also provides a polyethylene film comprising the polymer composition. The present disclosure further provides high clarity laminates comprising the polyethylene film. The present disclosure also provides a process for the preparation of the laminate.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: June 12, 2018
    Assignee: Essel Propack Ltd.
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banjerjee
  • 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
  • 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: 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: 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: 20140295118
    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: Application
    Filed: August 1, 2012
    Publication date: October 2, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Mrinal Kanti Banerjee, Chandrashekhar Ramchandra Abhyankar
  • Publication number: 20140251487
    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: Application
    Filed: June 4, 2012
    Publication date: September 11, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventor: Mrinal Kanti Banerjee
  • Publication number: 20140220280
    Abstract: The present disclosure relates to a process for recycling of plastic waste comprising: segregating plastic waste collected from various sources followed by cleaning of the segregated plastic waste to obtain segregated cleaned waste; grinding of the segregated cleaned waste to obtain grinded waste; introducing the grinded waste into an extrusion line having a venting extruder component as part of the extrusion line, to obtain molten plastic; and removing the impurities by vacuum venting of the molten plastic to obtained recycled plastic free from impurities. The present disclosure further relates to various articles like Industrial Post Recycled (IPR) plastic tubes, blow moulded bottles, pallates, manufactured from the recycled plastic waste.
    Type: Application
    Filed: June 19, 2012
    Publication date: August 7, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Natarasan Sethu, Chandrashekhar Ramchandra Abhyankan, Mrinal Kanti Banerjee
  • Publication number: 20140186561
    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: Application
    Filed: May 31, 2012
    Publication date: July 3, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
  • Publication number: 20140170399
    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: Application
    Filed: May 31, 2012
    Publication date: June 19, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
  • Publication number: 20140131504
    Abstract: A system for automatic web splicing, comprises of an unwinding section, a splicing section, an accumulator, and a controller to facilitate clamping, cutting and splicing of the webs to provide continuous web supply to a utilizing machine, the system comprises also at least two receiving platforms, a space defining a splicing area between the delivering platform and the receiving platform, one platform for receiving a running web and other platform for a new web and at least one dispenser so as to splice trailing edge of a running web and a leading edge of a new web with an adhesive tape. The system joins the two webs in completely auto mode and keeps the utilizing machine running continuously without stoppage.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 15, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Pradeep Ramteke, Parag Chaturvedi
  • Publication number: 20140134370
    Abstract: The present disclosure relates to a multilayered film comprising: an outer polyethylene layer; a core layer comprising 40% to 49% (w/w) of polypropylene homopolymer, 51% to 55% (w/w) of LLDPE, and 0% to 5% (w/w) of at least one additive; and an inner polyethylene layer. The multilayered film of the present disclosure exhibits good mechanical strength with lower thickness. The present disclosure also relates to a laminate comprising: an outer printing layer; a middle barrier layer; and an inner sealant layer; wherein at least one of the outer printing layer or the inner sealant layer is made up of a multilayered film comprising: an outer polyethylene layer; a core layer comprising 40% to 49% (w/w) of polypropylene homopolymer, 51% to 55% (w/w) of LLDPE, and 0% to 5% (w/w) of at least one additive; and an inner polyethylene layer. The present disclosure further relates to a laminated tube.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 15, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banjerjee
  • Publication number: 20140124130
    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: June 14, 2012
    Publication date: May 8, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Tapan Kumar Banerjee, Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
  • Publication number: 20140106152
    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: Application
    Filed: June 1, 2012
    Publication date: April 17, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
  • Publication number: 20140083552
    Abstract: The present disclosure relates to an ink composition for printing an outer layer of a laminate. The present disclosure provides an ink composition for printing on a laminate, comprising: a printing ink; and an additive; wherein the printing ink and the additive is in a ratio of 70:30 to 95:5 (wt/wt), and the additive is a translucent to transparent extender that reduces the pigment solid content in the ink composition by 50%-95%. The present disclosure further provides a process for printing the outer layer of a laminate including the seam area of the laminate with the ink composition, more preferably, for achieving a 360 degree printing effect over the laminated tube formed by the laminate.
    Type: Application
    Filed: June 5, 2012
    Publication date: March 27, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Avinash Velandy Mukkolath, Mrinal Kanti Banerjee