Patents by Inventor Satya Prasad Bhattacharya

Satya Prasad Bhattacharya 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: 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: 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: 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: 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: 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: 20140030498
    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: Application
    Filed: May 23, 2012
    Publication date: January 30, 2014
    Applicant: ESSEL PROPACK LTD.
    Inventors: Satya Prasad Bhattacharya, Mrinal Kanti Banjerjee