Patents by Inventor Adeline Ai Lin Kung

Adeline Ai Lin Kung 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: 10538609
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 21, 2020
    Assignee: Lifestyles Healthcare Pte. Ltd.
    Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Publication number: 20180029259
    Abstract: Condoms, condom formers, and methods for forming condoms are disclosed. A condom includes an open end, a closed end, a tubular sheath extending from the open end to the closed end, a tip portion adapted to cover a glans of a penis, disposed adjacent to the closed end, and a plurality of raised features disposed on the tubular sheath, having a top surface area and a base surface area, wherein the total raised top surface area is greater than the total base surface area of the condom.
    Type: Application
    Filed: September 27, 2017
    Publication date: February 1, 2018
    Inventors: KC Nguyen, Beng Sim Chuah, Adeline Ai Lin Kung, Matthew Groskorth, Chayaporn Pongthanomsak
  • Publication number: 20170298159
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Patent number: 9725539
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: August 8, 2017
    Assignee: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Publication number: 20160279839
    Abstract: Condoms, condom formers, and methods for forming condoms are disclosed. A condom includes an open end, a closed end, a tubular sheath extending from the open end to the closed end, a tip portion adapted to cover a glans of a penis, disposed adjacent to the closed end, and a plurality of raised features disposed on the tubular sheath, having a top surface area and a base surface area, wherein the total raised top surface area is greater than the total base surface area of the condom.
    Type: Application
    Filed: June 10, 2016
    Publication date: September 29, 2016
    Inventors: KC NGUYEN, Beng Sim Chuah, Adeline Ai Lin Kung, Matthew Steven Groskorth, Chayaporn Pongthanomsak
  • Publication number: 20150259451
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Application
    Filed: May 29, 2015
    Publication date: September 17, 2015
    Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Patent number: 9074027
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: July 7, 2015
    Assignee: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Patent number: 9074029
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: July 7, 2015
    Assignee: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Publication number: 20140186628
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Application
    Filed: February 10, 2014
    Publication date: July 3, 2014
    Applicant: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Publication number: 20130291873
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Application
    Filed: June 5, 2013
    Publication date: November 7, 2013
    Inventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Patent number: 8464719
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: June 18, 2013
    Assignee: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Publication number: 20120031408
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Application
    Filed: October 20, 2011
    Publication date: February 9, 2012
    Applicant: ANSELL HEALTHCARE PRODUCTS LLC
    Inventors: DAVID M. LUCAS, SUGATH AMARASEKERA, DAVE NARASIMHAN, ADELINE AI LIN KUNG
  • Patent number: 8087412
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 3, 2012
    Assignee: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
  • Publication number: 20090272384
    Abstract: A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high S8 ring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis.
    Type: Application
    Filed: August 19, 2008
    Publication date: November 5, 2009
    Applicant: Ansell Healthcare Products LLC
    Inventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung