Patents by Inventor Kumaresan Prabhakaran

Kumaresan Prabhakaran 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: 11725085
    Abstract: This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain a second cross-linking agent comprising either (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 15, 2023
    Assignee: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20230029488
    Abstract: The invention relates to an elastomeric film-forming composition (a) a carboxylated butadiene-based elastomer, (b) polychlorobutadiene in an amount of less than 30% by weight of the polymer content of the composition, and (c) one or more cross-linking agents. The invention also relates to dipped articles, gloves, methods of manufacture and uses involving the composition.
    Type: Application
    Filed: September 27, 2022
    Publication date: February 2, 2023
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Patent number: 11284656
    Abstract: The present application provides low thickness synthetic elastomeric gloves, comprising (a) a thickness at the palm of less than 0.050 mm; (a) a modulus at 500% above 6.5 MPa; and/or (c) an elongation at break below 700%. Also provided is a method for the manufacture of such gloves involving dipping a glove-shaped former into an elastomeric film-forming composition; and curing the elastomeric film-forming composition on the former so as to produce the synthetic elastomeric glove. Corresponding low thickness finger cots are also described, as are formers suitable for the preparation of such gloves.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: March 29, 2022
    Assignee: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20200317873
    Abstract: This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain a second cross-linking agent comprising either (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Patent number: 10731013
    Abstract: This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain a second cross-linking agent comprising either (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 4, 2020
    Assignee: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20200190296
    Abstract: The invention relates to an elastomeric film-forming composition (a) a carboxylated butadiene-based elastomer, (b) polychlorobutadiene in an amount of less than 30% by weight of the polymer content of the composition, and (c) one or more cross-linking agents. The invention also relates to dipped articles, gloves, methods of manufacture and uses involving the composition.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 18, 2020
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Patent number: 10377893
    Abstract: The invention relates to an elastomeric film-forming composition comprising a carboxylic acid- or ester-grafted polychlorobutadiene, and one or more cross-linking agents. The invention also relates to dipped articles, gloves, methods of manufacture and uses involving the composition.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: August 13, 2019
    Assignee: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Patent number: 10344158
    Abstract: The invention relates to an elastomeric film-forming composition comprising (a) a copolymer formed from monomers consisting of chlorobutadiene and an ethylenically unsaturated carboxylic acid or ester, and (b) one or more cross-linking agents. The invention also relates to dipped articles, gloves, methods of manufacture and uses involving the composition.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: July 9, 2019
    Assignee: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20190029342
    Abstract: The present application provides low thickness synthetic elastomeric gloves, comprising (a) a thickness at the palm of less than 0.050 mm; (h) a modulus at 500% above 6.5 MPa; and/or (c) an elongation at break below 700%. Also provided is a method for the manufacture of such gloves involving dipping a glove-shaped former into an elastomeric film-forming composition; and curing the elastomeric film-forming composition on the former so as to produce the synthetic elastomeric glove. Corresponding low thickness finger cots are also described, as are formers suitable for the preparation of such gloves.
    Type: Application
    Filed: June 22, 2018
    Publication date: January 31, 2019
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20170218142
    Abstract: This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods may contain an aqueous solution of a multimetal oxide of the multivalent metal, a hydroxide of the multivalent metal, or a salt of the multivalent metal, such as sodium aluminate, in an amount of less than 0.3 phr.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 3, 2017
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20170218168
    Abstract: This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain an aqueous solution of a multimetal oxide of the multivalent metal, a hydroxide of the multivalent metal, or a salt of the multivalent metal, such as sodium aluminate, in an amount of less than 0.3 phr. The articles produced have a thickness of between 0.01-3 mm and an unaged tensile strength of at least 15 MPa.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 3, 2017
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20170218144
    Abstract: This application relates to synthetic elastomeric articles, and gloves in particular, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles so produced have an average thickness of 0.2 mm or less and a modulus at 500% of less than 6.5 MPa.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 3, 2017
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20170218143
    Abstract: This application relates to synthetic elastomeric articles, such as gloves, comprising the cured product of a synthetic latex composition, the synthetic latex composition comprising a synthetic carboxylated polymer and a cross-linking composition, the cross-linking composition comprising an aqueous solution of a negatively charged multivalent metal complex ion having a pH of at least 9.0. Also described are compositions for forming the articles, and methods for making the articles, based on the use of the described cross-linking composition. The articles, compositions and methods contain a second cross-linking agent comprising either (a) sulphur and a sulphur donor, (b) a multivalent metal oxide or ionic cross-linking agent, (c) sulphur, a sulphur donor and an ionic cross-linking agent, or (d) sulphur donor.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 3, 2017
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20160194494
    Abstract: The invention relates to an elastomeric film-forming composition comprising (a) a copolymer formed from monomers consisting of chlorobutadiene and an ethylenically unsaturated carboxylic acid or ester, and (b) one or more cross-linking agents. The invention also relates to dipped articles, gloves, methods of manufacture and uses involving the composition.
    Type: Application
    Filed: July 16, 2014
    Publication date: July 7, 2016
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran
  • Publication number: 20160159992
    Abstract: The invention relates to an elastomeric film-forming composition comprising a carboxylic acid- or ester-grafted polychlorobutadiene, and one or more cross-linking agents. The invention also relates to dipped articles, gloves, methods of manufacture and uses involving the composition.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 9, 2016
    Applicant: SKINPROTECT CORPORATION SDN BHD
    Inventors: Khon Pu Foo, Kumaresan Prabhakaran