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).
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Patent number: 11725085Abstract: 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: GrantFiled: June 22, 2020Date of Patent: August 15, 2023Assignee: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20230029488Abstract: 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: ApplicationFiled: September 27, 2022Publication date: February 2, 2023Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Patent number: 11284656Abstract: 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: GrantFiled: June 22, 2018Date of Patent: March 29, 2022Assignee: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20200317873Abstract: 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: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Patent number: 10731013Abstract: 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: GrantFiled: April 29, 2016Date of Patent: August 4, 2020Assignee: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20200190296Abstract: 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: ApplicationFiled: December 22, 2017Publication date: June 18, 2020Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Patent number: 10377893Abstract: 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: GrantFiled: July 16, 2014Date of Patent: August 13, 2019Assignee: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Patent number: 10344158Abstract: 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: GrantFiled: July 16, 2014Date of Patent: July 9, 2019Assignee: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20190029342Abstract: 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: ApplicationFiled: June 22, 2018Publication date: January 31, 2019Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20170218142Abstract: 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: ApplicationFiled: April 29, 2016Publication date: August 3, 2017Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20170218168Abstract: 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: ApplicationFiled: January 27, 2017Publication date: August 3, 2017Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20170218144Abstract: 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: ApplicationFiled: April 29, 2016Publication date: August 3, 2017Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20170218143Abstract: 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: ApplicationFiled: April 29, 2016Publication date: August 3, 2017Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20160194494Abstract: 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: ApplicationFiled: July 16, 2014Publication date: July 7, 2016Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran
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Publication number: 20160159992Abstract: 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: ApplicationFiled: July 16, 2014Publication date: June 9, 2016Applicant: SKINPROTECT CORPORATION SDN BHDInventors: Khon Pu Foo, Kumaresan Prabhakaran