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).
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Patent number: 11173688Abstract: 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: GrantFiled: May 31, 2012Date of Patent: November 16, 2021Assignee: ESSEL PROPACK LTD.Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
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Patent number: 10730270Abstract: 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: GrantFiled: August 1, 2012Date of Patent: August 4, 2020Assignee: Essel Propack Ltd.Inventors: Mrinal Kanti Banerjee, Chandrashekhar Ramchandra Abhyankar
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Patent number: 10513096Abstract: 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: GrantFiled: January 6, 2017Date of Patent: December 24, 2019Assignee: Essel Propack LimitedInventor: Mrinal Kanti Banerjee
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Publication number: 20190217577Abstract: 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: ApplicationFiled: March 26, 2019Publication date: July 18, 2019Inventor: Mrinal Kanti Banerjee
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Patent number: 10214639Abstract: 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: GrantFiled: June 1, 2012Date of Patent: February 26, 2019Assignee: Essel Propack Ltd.Inventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
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Patent number: 10189197Abstract: 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: GrantFiled: May 27, 2016Date of Patent: January 29, 2019Assignee: ESSEL PROPACK LIMITEDInventor: Mrinal Kanti Banerjee
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Publication number: 20180281360Abstract: 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: ApplicationFiled: January 6, 2017Publication date: October 4, 2018Applicant: Essel Propack LimitedInventor: Mrinal Kanti Banerjee
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Patent number: 9937686Abstract: 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: GrantFiled: November 7, 2012Date of Patent: April 10, 2018Assignee: ESSEL PROPACK LIMITEDInventor: Mrinal Kanti Banerjee
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Publication number: 20180079124Abstract: 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: ApplicationFiled: May 27, 2016Publication date: March 22, 2018Inventor: Mrinal Kanti BANERJEE
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Patent number: 9731480Abstract: 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: GrantFiled: June 14, 2012Date of Patent: August 15, 2017Assignee: Essel Propack LimitedInventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
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Patent number: 9586384Abstract: 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: GrantFiled: August 8, 2011Date of Patent: March 7, 2017Assignee: Essel Propack Ltd.Inventor: Mrinal Kanti Banerjee
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Patent number: 9574686Abstract: 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: GrantFiled: June 4, 2012Date of Patent: February 21, 2017Assignee: Essel Propack Ltd.Inventor: Mrinal Kanti Banerjee
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Patent number: 9555601Abstract: 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: GrantFiled: May 31, 2012Date of Patent: January 31, 2017Assignee: ESSEL PROPACK LTD.Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
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Publication number: 20170008247Abstract: 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: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Inventors: Tapan Kumar Banerjee, Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
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Patent number: 9486987Abstract: 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: GrantFiled: June 14, 2012Date of Patent: November 8, 2016Assignee: Essel Propack Ltd.Inventors: Tapan Kumar Banerjee, Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
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Patent number: 9193509Abstract: 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: GrantFiled: June 14, 2012Date of Patent: November 24, 2015Assignee: ESSEL PROPACK LIMITEDInventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
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Patent number: 9186872Abstract: 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: GrantFiled: November 6, 2008Date of Patent: November 17, 2015Assignee: Essel Propack Ltd.Inventor: Mrinal Kanti Banerjee
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Publication number: 20150183192Abstract: 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: ApplicationFiled: June 14, 2012Publication date: July 2, 2015Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banerjee
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Publication number: 20150158278Abstract: 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: ApplicationFiled: November 12, 2012Publication date: June 11, 2015Applicant: Essel Propack Ltd.Inventor: Mrinal Kanti Banerjee
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Publication number: 20140346172Abstract: 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: ApplicationFiled: August 30, 2012Publication date: November 27, 2014Applicant: ESSEL PROPACK LIMITEDInventors: Mrinal Kanti Banerjee, Chandrashekhar Ramchandra Abhyankar, Avinash Velandy Mukkolath