Patents Assigned to Ansell Healthcare Products LLC
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Patent number: 8303969Abstract: A substantially anhydrous, spreadable warming lubricant composition comprising a mixture of glycerin, a polyhydric alcohol, and a non-ionic surfactant, the viscosity of the composition being less than that of glycerin but greater than that of the polyhydric alcohol, thereby promoting formation of a useful thin layer on a surface with which the composition is brought into contact, the surfactant improving wetting and spreadability of the composition on skin and latex, such that the composition can be applied to skin or a condom and provide an optimal warming effect upon contact with ambient moisture during use and such that the composition can be added to a condom package and, over the course of about a week, spread and coat nearly the entire internal and external surfaces of the condom.Type: GrantFiled: April 8, 2010Date of Patent: November 6, 2012Assignee: Ansell Healthcare Products LLCInventors: Beng Sim Chuah, David M. Lucas, Tsui Shih Yeun, Dave Narasimhan
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Patent number: 8193134Abstract: A substantially anhydrous, thickened, spreadable, warming lubricant composition comprising a mixture of glycerin, polyhydric alcohol, a non-ionic surfactant, and a Carbomer thickener, the surfactant improving wetting and spreadability of the composition on skin and latex, and the thickener providing a creamy rich feel to the composition, such that the composition can be applied to skin or a condom and provide an optimal warming effect upon contact with ambient moisture during use and such that the composition can be added to a condom package and, over the course of a week, spread and coat nearly the entire internal and external surfaces of the condom.Type: GrantFiled: March 3, 2010Date of Patent: June 5, 2012Assignee: Ansell Healthcare Products LLCInventors: Beng Sim Chuah, David M. Lucas, Tsui Shih Yeun, Dave Narasimhan
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Patent number: 8192834Abstract: A process for producing an article in a flexible foamed polymer material, including treating a former with a coagulant; dipping the treated former in a latex foam mixture to form a layer of the mixture on the former that includes air cells; curing the layer to gel the foam mixture to a cross-linked open cell structure; and stripping the layer from the former; where the latex foam mixture includes a natural latex polymer as a primary polymer component, and a synthetic latex polymer as a secondary polymer component, which synthetic latex polymer is selected to enhance the evenness and/or fineness of said open cell structure.Type: GrantFiled: December 23, 2009Date of Patent: June 5, 2012Assignee: Ansell Healthcare Products LLCInventors: James M. D. Woodford, Loo Liong Yu
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Patent number: 8137606Abstract: A lightweight thin flexible latex glove article having a polymeric latex coating that penetrates the front portion of a knitted liner half way or more through the liner thickness and for at least a portion of the knitted liner, not penetrating the entire thickness. For example, the liner can be knitted using an 18-gauge needle with 70 to 221 denier nylon 66 multi-filament yarn. The polymer latex coating can be 0.75 to 1.25 times the thickness of the knitted liner. Over 30% reduction of glove thickness is achieved resulting in three times greater flexibility. The polymer latex coating may be foamed with 5 to 50 vol % air content. Open celled foamed latex coating may be coated with a dispersion of fluorochemical dispersion to prevent liquid permeation into the glove. The process can include steps to gel the latex emulsion at interstices of the yarn to prevent further penetration of the emulsion into the liner.Type: GrantFiled: August 25, 2010Date of Patent: March 20, 2012Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah Mohd Ghazaly
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Publication number: 20120031408Abstract: 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: October 20, 2011Publication date: February 9, 2012Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: DAVID M. LUCAS, SUGATH AMARASEKERA, DAVE NARASIMHAN, ADELINE AI LIN KUNG
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Patent number: 8087412Abstract: 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: August 19, 2008Date of Patent: January 3, 2012Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Patent number: 8074436Abstract: A flexible cut resistant hydrocarbon flash fire resistant latex glove article is provided, having a flame resistant cut resistant liner and a flame resistant oil resistant polychloroprene polymeric latex coating. The knitted cut resistant fire resistant liner has is made from a composite yarn having a fiberglass core and optionally including a steel fiber. The core has a cushioning core sheath formed by ring-spinning of microdenier staple cut resistant fibers of, for example, para-aramid. and Staple modacrylic fibers can be included with the staple para-aramid fibers. Two wraps of continuous yarns of polyester, para-aramid, or both at a wrap density such that the wraps do not cover the core sheath in its entirety. In the absence of steel fiber, the cut resistant hydrocarbon flash fire resistant glove exhibits good electrical insulation characteristics even with sweat generated from hand preventing short circuit of electrical circuits.Type: GrantFiled: January 20, 2009Date of Patent: December 13, 2011Assignee: Ansell Healthcare Products LLCInventors: Fred Hardee, Gopinath Radhakrishnan, Marco Carrillo, Dave Narasimhan, Cherilyn N. Nelson
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Publication number: 20110284010Abstract: Provided are condoms, methods of making and treating sexual dysfunction with the same, the condoms having a multiplicity of microcapsules containing an ingredient therein, the microcapsules being disposed on one or more surfaces of the condom such that the microcapsules are substantially exposed. The microcapsules can be disposed on one or both surfaces. A barrier layer between the microcapsules and the condom can be provided. The barrier layer can comprise nitrile, polyurethane, polyacetal urea, or combinations thereof. Further embodiments of such condoms are provided where an ingredient without encapsulation is disposed on the elastomeric layer along with the microcapsules.Type: ApplicationFiled: July 31, 2009Publication date: November 24, 2011Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Beng Sim Chuah, David M. Lucas, Dave Narasimhan
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Publication number: 20110209504Abstract: A lightweight thin flexible latex glove article having a polymeric latex coating that penetrates the front portion of a knitted liner half way or more through the liner thickness and for at least a portion of the knitted liner, not penetrating the entire thickness. For example, the liner can be knitted using an 18-gauge needle with 70 to 221 denier nylon 66 multi-filament yarn. The polymer latex coating can be 0.75 to 1.25 times the thickness of the knitted liner. Over 30% reduction of glove thickness is achieved resulting in three times greater flexibility. The polymer latex coating may be foamed with 5 to 50 vol % air content. Open celled foamed latex coating may be coated with a dispersion of fluorochemical dispersion to prevent liquid permeation into the glove. The process can include steps to gel the latex emulsion at interstices of the yarn to prevent further penetration of the emulsion into the liner.Type: ApplicationFiled: August 25, 2010Publication date: September 1, 2011Applicant: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah Mohd Ghazaly
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Publication number: 20110203027Abstract: 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: ApplicationFiled: May 3, 2011Publication date: August 25, 2011Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Michael Flather, Paul Saunders, Dave Narasimhan
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Patent number: 8001809Abstract: Lightweight robust thin flexible latex gloves having areas of reinforcement at areas of high stretch and/or movement are provided. Gloves comprise a knitted liner having a plurality of stitches made from a first yarn having a denier 221 or less, the knitted liner comprising a plurality of finger components, a thumb component, and a palm component; and at least one reinforcement section located at a base of at least one finger component, at a base of the thumb component, in the palm component, or combinations thereof, and a polymeric latex coating. Reinforcement sections can be formed by plaiting, using yarn of a heavier denier, and/or forming Jacquard or transfer stitches. The liner can be knitted using with 70 to 221 denier nylon 66 multi-filament yarn. Methods of making and using the gloves are also provided.Type: GrantFiled: September 4, 2007Date of Patent: August 23, 2011Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Jeffrey C. Moreland, Hafsah binti Mohd. Ghazaly
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Patent number: 7988983Abstract: The present invention provides for a coating having microcapsules for use with a glove. The coating improves both wet and dry and donnability of the glove. The coating comprises microcapsules, water and a polyurethane for application to a glove.Type: GrantFiled: September 13, 2002Date of Patent: August 2, 2011Assignee: Ansell Healthcare Products LLCInventors: E. Anthony Yu, Stanley J. Gromelski, Paul Cacioli, Richard L. Cox
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Patent number: 7971275Abstract: A damage tolerant cut resistant chemical handling glove that is flexible and lightweight comprises a cured, liquid-impervious polymeric latex shell, a knitted cut resistant liner comprising a cotton yarn and at least one cut resistant yarn, the liner being infiltrated with a soft nitrile or polyurethane layer such that the liner bonds to the shell. The soft nitrile or polyurethane layer seals interstices of the cut resistant liner and replicates its rough texture on the external surface of the glove, providing enhanced grip properties. A thin nitrile latex layer applied to and cured together with the polyurethane layer to protect the polyurethane layer from oil or chemical degradation. The intimate seal thus created between the shell and the liner prevents accumulation of liquid there between, which prevents formation of a liquid boundary layer and interference with grip properties of the glove.Type: GrantFiled: August 17, 2009Date of Patent: July 5, 2011Assignee: Ansell Healthcare Products LLCInventors: Paul Saunders, Michael Flather, Dave Narasimhan, William Bennett
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Patent number: 7971276Abstract: A hand-friendly rubber glove article comprising a dried coating of an emulsified hand-friendly mixture comprising at least one water-soluble humectant moisturizer, at least one water-soluble lubricant, at least one water-soluble surfactant, and at least one water-insoluble occlusive moisturizer, which is finely and substantially uniformly dispersed within the mixture, which is transferred to the skin of a wearer upon activation with skin-generated moisture, and, optionally, a fabric-adherent cuff region and/or a texturized surface and methods of making the emulsified hand-friendly mixture and the glove article.Type: GrantFiled: December 1, 2005Date of Patent: July 5, 2011Assignee: Ansell Healthcare Products, LLCInventors: Aik Hwee Eng, Hee Meng Lai, Bit New Yee, Soo Hwa Kwan, Dave Narasimhan
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Patent number: 7959758Abstract: 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: September 8, 2010Date of Patent: June 14, 2011Assignee: Ansell Healthcare Products LLCInventors: Michael Flather, Paul Saunders, Dave Narasimhan
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Patent number: 7908891Abstract: A knitted glove made by creating each of the sections of the glove using a separate knitting course on a flat knitting machine providing variable stitch dimensions. Each of these sections provides its own designed stretch characteristics so that the glove fits tightly, yet provides flexibility and ease of movement. The variable stitch dimension is achieved by 1) varying the depth of penetration of a knitting needle into a fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roller and a knitting head by a mechanism controlled by a computer, and 3) casting off or picking up additional stitches in a course. The glove includes a plurality of finger components made from at least ten separately knitted sections, two palm components, each of which is made from at least two separately knitted sections, and a wrist component made from at least one knitted section.Type: GrantFiled: April 24, 2009Date of Patent: March 22, 2011Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Gerardo Rodriguez Garay
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Patent number: D640836Type: GrantFiled: November 17, 2010Date of Patent: June 28, 2011Assignee: Ansell Healthcare Products LLCInventors: Sean Sweeney, Eric Thompson
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Patent number: D641525Type: GrantFiled: July 12, 2010Date of Patent: July 12, 2011Assignee: Ansell Healthcare Products LLCInventors: Sean Sweeney, Eric Thompson
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Patent number: D655890Type: GrantFiled: April 13, 2010Date of Patent: March 20, 2012Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Gerardo Rodriguez Garay, Hafsah Binti Mohd. Ghazaly, Norman W. Keane
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Patent number: D656684Type: GrantFiled: April 26, 2010Date of Patent: March 27, 2012Assignee: Ansell Healthcare Products LLCInventors: Todd R. Carroll, Lee Khommanyvong