Patents Assigned to Ansell Healthcare Products LLC
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Patent number: 10791777Abstract: 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: GrantFiled: December 18, 2017Date of Patent: October 6, 2020Assignee: Ansell Healthcare Products LLCInventors: Noorman bin Abu Hassan, Muhammad Ishkandar bin Abdul Hamid, Neoh Siew Bee
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Patent number: 10485231Abstract: 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: GrantFiled: March 12, 2018Date of Patent: November 26, 2019Assignee: Ansell Healthcare Products LLCInventor: Debbie Wooley
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Patent number: 10119209Abstract: 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: GrantFiled: January 10, 2014Date of Patent: November 6, 2018Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah binti Mohd. Ghazaly
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Patent number: 9913467Abstract: 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: GrantFiled: July 15, 2009Date of Patent: March 13, 2018Assignee: Ansell Healthcare Products LLCInventor: Debbie Wooley
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Patent number: 9877528Abstract: 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: GrantFiled: May 2, 2013Date of Patent: January 30, 2018Assignee: Ansell Healthcare Products LLCInventors: Noorman bin Abu Hassan, Muhammad Ishkandar bin Abdul Hamid, Neoh Siew Bee
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Patent number: 9725539Abstract: 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: GrantFiled: May 29, 2015Date of Patent: August 8, 2017Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 9456645Abstract: 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: GrantFiled: April 26, 2012Date of Patent: October 4, 2016Assignee: Ansell Healthcare Products LLCInventors: Hafsah binti Mohd Ghazaly, Kwee Feng Hin, Norman Washington Keane
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Patent number: 9074027Abstract: 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: GrantFiled: June 5, 2013Date of Patent: July 7, 2015Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 9074029Abstract: 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: GrantFiled: February 10, 2014Date of Patent: July 7, 2015Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugarth Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 8883657Abstract: 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: GrantFiled: December 17, 2012Date of Patent: November 11, 2014Assignee: Ansell Healthcare Products LLCInventors: Noorman Abu Hassan, Michael S. Zedalis, Mohd Zabidi Bin Mohd Yasir, Eric Michael Thompson
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Publication number: 20140186628Abstract: 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: ApplicationFiled: February 10, 2014Publication date: July 3, 2014Applicant: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20140123366Abstract: 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: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicant: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah binti Mohd. Ghazaly
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Patent number: 8709573Abstract: 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: GrantFiled: March 20, 2009Date of Patent: April 29, 2014Assignee: Ansell Healthcare Products LLCInventors: Noorman Bin Abu Hassan, David M. Lucas, Nuzaimah Binti Mustafa
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Publication number: 20140109290Abstract: 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: ApplicationFiled: April 26, 2012Publication date: April 24, 2014Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Hafsah binti Mohd Ghazaly, Kwee Feng Hin, Norman Washington Keane
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Patent number: 8656518Abstract: 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: GrantFiled: August 20, 2008Date of Patent: February 25, 2014Assignee: Ansell Healthcare Products LLCInventors: Paul Saunders, Michael Flather, Dave Narasimhan
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Patent number: 8640504Abstract: 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: GrantFiled: June 23, 2011Date of Patent: February 4, 2014Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah M. Ghazaly
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Patent number: 8522363Abstract: 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: GrantFiled: October 19, 2010Date of Patent: September 3, 2013Assignee: Ansell Healthcare Products LLCInventors: Noorman Abu Hassan, David M. Lucas, Fazli Shani, Dave Narasimhan
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Publication number: 20130152273Abstract: 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: ApplicationFiled: December 17, 2012Publication date: June 20, 2013Applicant: Ansell Healthcare Products LLCInventor: Ansell Healthcare Products LLC
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Patent number: 8464719Abstract: 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: GrantFiled: October 20, 2011Date of Patent: June 18, 2013Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 8367168Abstract: 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, subjecType: GrantFiled: May 3, 2011Date of Patent: February 5, 2013Assignee: Ansell Healthcare Products LLCInventors: Michael Flather, Paul Saunders, Dave Narasimhan