Patents Assigned to Ansell Healthcare Products LLC
  • Patent number: 10791777
    Abstract: Provided in one embodiment is a cured absorbent composite comprising: liquid resistant layer of elastomer; and a layer affixed to the liquid resistant layer comprising an open foam of elastomer, wherein the moisture absorption capacity of the foam layer, normalized by the thickness of the absorptive layer, is 1.5 times that of Ansell's foam lined Household glove.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: October 6, 2020
    Assignee: Ansell Healthcare Products LLC
    Inventors: Noorman bin Abu Hassan, Muhammad Ishkandar bin Abdul Hamid, Neoh Siew Bee
  • Patent number: 10485231
    Abstract: The present disclosure provides an anti-infective protector containing at least one anti-infective agent. The anti-infective protector provides for a range of benefits not appreciated in the prior art.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 26, 2019
    Assignee: Ansell Healthcare Products LLC
    Inventor: Debbie Wooley
  • Patent number: 10119209
    Abstract: Lightweight robust flexible gloves having an 18 gauge knitted liner and a polymeric coating disposed thereon and optionally including knitted reinforcement sections at areas of high stretch and/or movement are provided. Reinforcement sections can be formed by plaiting, using yarns of the same or lighter denier, and/or forming Jacquard or transfer stitches.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: November 6, 2018
    Assignee: Ansell Healthcare Products LLC
    Inventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah binti Mohd. Ghazaly
  • Patent number: 9913467
    Abstract: The present disclosure provides an anti-infective protector containing at least one anti-infective agent. The anti-infective protector provides for a range of benefits not appreciated in the prior art.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: March 13, 2018
    Assignee: Ansell Healthcare Products LLC
    Inventor: Debbie Wooley
  • Patent number: 9877528
    Abstract: Provided in one embodiment is a cured absorbent composite comprising: liquid resistant layer of elastomer; and a layer affixed to the liquid resistant layer comprising an open foam of elastomer, wherein the moisture absorption capacity of the foam layer, normalized by the thickness of the absorptive layer, is 1.5 times that of Ansell's foam lined Household glove.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: January 30, 2018
    Assignee: Ansell Healthcare Products LLC
    Inventors: Noorman bin Abu Hassan, Muhammad Ishkandar bin Abdul Hamid, Neoh Siew Bee
  • 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
  • Patent number: 9456645
    Abstract: A glove comprising an elastomeric coating with a particle filler and a method of making such a glove. Specifically, the glove comprises a knitted liner formed from at least one yarn; a elastomeric coating covering at least a portion of the knitted liner; and wherein the elastomeric coating comprises a filler particle having a hardness greater than the hardness of the elastomeric coating.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: October 4, 2016
    Assignee: Ansell Healthcare Products LLC
    Inventors: Hafsah binti Mohd Ghazaly, Kwee Feng Hin, Norman Washington Keane
  • 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
  • Patent number: 8883657
    Abstract: Provided among other things is a fabric comprising: a HPPE base fabric; coated thereon a primer polymer; and coated on the primer polymer a liquid-resistant polymer layer. The primer polymer can be a polyurethane. The base fabric can comprise an adhesion promoter that can be a plasticizer. The adhesion promoter can be a sulfonic acid plasticizer. The adhesion promoter can contain an active hydrogen, carboxy, carboxyloxy or acid group. The fabric can comprise, coated on the liquid-resistant polymer layer, an additional polymer layer. The additional polymer layer can comprise carnauba wax in an amount from about 1 to 3% Phr. The liquid-resistant polymer layer can be a NBR layer. In certain embodiments, the fabric shows no delamination of the liquid-resistant polymer layer after an adherence test. The primer layer can be a polyurethane layer. These features can be present in any combination.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 11, 2014
    Assignee: Ansell Healthcare Products LLC
    Inventors: Noorman Abu Hassan, Michael S. Zedalis, Mohd Zabidi Bin Mohd Yasir, Eric Michael Thompson
  • 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: 20140123366
    Abstract: Lightweight robust flexible gloves having an 18 gauge knitted liner and a polymeric coating disposed thereon and optionally including knitted reinforcement sections at areas of high stretch and/or movement are provided. Reinforcement sections can be formed by plaiting, using yarns of the same or lighter denier, and/or forming Jacquard or transfer stitches.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Ansell Healthcare Products LLC
    Inventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah binti Mohd. Ghazaly
  • Patent number: 8709573
    Abstract: A latex glove article with a fibrous coating bonded to the skin-contacting surface. Long length soft moisture absorbing fibers are attached to latex layer of a glove with a thin layer of polymeric latex adhesive forming a fibrous lining. The long length fibers extend or project from the polymeric latex adhesive coating. The fibers penetrate the polymeric latex adhesive layer at one end or both end of the fiber to a depth of about 60% to about 100% of the adhesive thickness, leaving a substantial portion of the fiber available for soft contact with skin and sweat absorption. Due to the substantial thickness of the fibrous lining, which is between about 4 and about 100 times the thickness of the thin layer of polymeric latex adhesive, an air gap is created between skin and the impervious latex layer establishing continual evaporation of absorbed sweat and evaporative cooling.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: April 29, 2014
    Assignee: Ansell Healthcare Products LLC
    Inventors: Noorman Bin Abu Hassan, David M. Lucas, Nuzaimah Binti Mustafa
  • Publication number: 20140109290
    Abstract: A glove comprising an elastomeric coating with a particle filler and a method of making such a glove. Specifically, the glove comprises a knitted liner formed from at least one yarn; a elastomeric coating covering at least a portion of the knitted liner; and wherein the elastomeric coating comprises a filler particle having a hardness greater than the hardness of the elastomeric coating.
    Type: Application
    Filed: April 26, 2012
    Publication date: April 24, 2014
    Applicant: ANSELL HEALTHCARE PRODUCTS LLC
    Inventors: Hafsah binti Mohd Ghazaly, Kwee Feng Hin, Norman Washington Keane
  • Patent number: 8656518
    Abstract: A cut resistant chemical handling glove that is flexible and lightweight comprises a cured, liquid-impervious polymeric latex shell. A tacky acrylic adhesive with low shear strength can be used. A cut resistant liner is slipped on the tacky adhesive coating and is infiltrated with a polymeric latex coating and cured to integrally attach the cut resistant liner with the cured polymeric coating. When the latex glove is worn on a hand and a cutting edge, such as a knife edge, contacts the glove, a crease is formed due to slip at the tacky adhesive-cut resistant liner interface creating a geometry that reduces cut stress intensity at the knife-edge thereby increasing the cut resistance of the glove. Processes for making and using these gloves are also described.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: February 25, 2014
    Assignee: Ansell Healthcare Products LLC
    Inventors: Paul Saunders, Michael Flather, Dave Narasimhan
  • Patent number: 8640504
    Abstract: A glove including a knitted liner having a thickness of about 0.70 mm to about 0.90 mm and a plurality of stitches made from a first yarn having a denier of 221 or less, the knitted liner comprising a plurality of finger components, a thumb component, and a palm component, at least one reinforcement section located at a base of at least one finger component, at a base of the thumb component, or in the palm component, or combinations thereof, and a foamed polymeric latex coating adhered to the knitted liner, the foamed polymeric latex coating penetrating half way or more for at least a portion of the knitted liner, the foamed polymeric latex coating not penetrating the entire thickness of the knitted liner.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 4, 2014
    Assignee: Ansell Healthcare Products LLC
    Inventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah M. Ghazaly
  • Patent number: 8522363
    Abstract: Latex articles with geometrically defined surface structure providing enhanced grip characteristics in dry, wet or oily environment; and a method of making same comprising applying a polymeric coagulant coating to a smooth former surface, wherein the coating becomes tacky during drying, applying discrete coagulant particles of selected size, shape and distribution to the tacky coating to attach and protrude from the former surface with the polymeric coagulant coating, dipping the former into an aqueous latex emulsion, wherein the polymeric coagulant coating and the discrete coagulating particles destabilize the latex, thereby developing a latex layer, vulcanizing and stripping the latex article inside out, and dissolving the discrete coagulant particles in water or suitable solvents to reveal the geometrically designed texture with pre-selected size, shape and distribution of impressions providing improved dry, wet and oily surface grip by removal of a fluid boundary layer.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: September 3, 2013
    Assignee: Ansell Healthcare Products LLC
    Inventors: Noorman Abu Hassan, David M. Lucas, Fazli Shani, Dave Narasimhan
  • Publication number: 20130152273
    Abstract: Provided among other things is a fabric comprising: a HPPE base fabric; coated thereon a primer polymer; and coated on the primer polymer a liquid-resistant polymer layer. The primer polymer can be a polyurethane. The base fabric can comprise an adhesion promoter that can be a plasticizer. The adhesion promoter can be a sulfonic acid plasticizer. The adhesion promoter can contain an active hydrogen, carboxy, carboxyloxy or acid group. The fabric can comprise, coated on the liquid-resistant polymer layer, an additional polymer layer. The additional polymer layer can comprise carnauba wax in an amount from about 1 to 3% Phr. The liquid-resistant polymer layer can be a NBR layer. In certain embodiments, the fabric shows no delamination of the liquid-resistant polymer layer after an adherence test. The primer layer can be a polyurethane layer. These features can be present in any combination.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 20, 2013
    Applicant: Ansell Healthcare Products LLC
    Inventor: Ansell Healthcare Products LLC
  • 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
  • Patent number: 8367168
    Abstract: An article comprising at least one cured, liquid-impervious polymeric shell substantially free from defects, at least one liner, and a non-tacky, thermoplastic adhesive layer between the shell and the liner, wherein the adhesive layer is melted and solidified to create a non-tacky bond between the shell and the liner, which can be moisture-absorbing or cut-resistant, whereby the liner supports and limits stretch ability of the shell, thereby preventing adhesive delamination between the adhesive layer and either of the shell and/or the liner; a method for the manufacture of an article comprising a supported, polymeric shell, such as a glove, a gauntlet, an apron, or a boot, comprising providing a cured, liquid-impervious, polymeric shell, providing a knitted/woven liner, incorporating a non-tacky, thermoplastic adhesive layer between the shell and the liner, such as by hot-melt spraying, dry-powder spraying or fiber-coating, creating intimate contact between the shell, the adhesive layer, and the liner, subjec
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 5, 2013
    Assignee: Ansell Healthcare Products LLC
    Inventors: Michael Flather, Paul Saunders, Dave Narasimhan