Patents Assigned to Ansell Healthcare Products LLC
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Publication number: 20100037364Abstract: 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: ApplicationFiled: August 17, 2009Publication date: February 18, 2010Applicant: Ansell Healthcare Products LLCInventors: Paul Saunders, Michael Flather, Dave Narasimhan, William Bennett
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Patent number: 7635733Abstract: A latex article is provided that contains chromium oxide particles dispersed throughout one or more cured latex layers rendering the latex article, or smaller pieces of the latex article, magnetically detectable. The chromium oxide may be present within the latex in combination with magnetically detectable ferrite. The article may include multiple cured latex layers having chromium oxide together with magnetically detectable ferrite dispersed throughout the cured latex layers.Type: GrantFiled: August 31, 2006Date of Patent: December 22, 2009Assignee: Ansell Healthcare Products LLCInventors: David M. Lucas, Liong Y. Loo, Hee M. Lai, James Barclay, Siau W. Wong
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Publication number: 20090272384Abstract: 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: August 19, 2008Publication date: November 5, 2009Applicant: Ansell Healthcare Products LLCInventors: David M. Lucas, Sugath Amarasekera, Dave Narasimhan, Adeline Ai Lin Kung
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Publication number: 20090211305Abstract: 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: ApplicationFiled: April 24, 2009Publication date: August 27, 2009Applicant: Ansell Healthcare Products LLCInventors: Eric Thompson, Gerardo Rodriguez Garay
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Publication number: 20090188019Abstract: 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 have a length ranging from 4 to 100 times the thickness of the polymeric latex adhesive layer and therefore 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, an air gap is created between skin and the impervious latex layer establishing continual evaporation of absorbed sweat and evaporative cooling.Type: ApplicationFiled: March 20, 2009Publication date: July 30, 2009Applicant: Ansell Healthcare Products LLCInventors: Noorman Bin Abu Hassan, David M. Lucas, Nuzaimah Binti Mustafa
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Publication number: 20090183296Abstract: 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: ApplicationFiled: January 20, 2009Publication date: July 23, 2009Applicant: Ansell Healthcare Products LLCInventors: Fred Hardee, Gopinath Radhakrishnan, Marco Carrillo, Dave Narasimhan, Cherilyn N. Nelson
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Patent number: 7555921Abstract: A knitted glove made by creating each of the at least fifteen sections using a separate knitting course on a flat knitting machine providing varying stitch dimensions with one or two yarns in one or more sections. Custom stretch characteristics can be provided using one or two yarns providing a tight glove that provides flexibility and ease of movement. The varying stitch dimension is achieved by 1) varying the depth of penetration of the knitting needle into fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roll and knitting head by a mechanism controlled by a computer and/or 3) casting off or picking up additional stitches in a course. The glove includes four finger components, a thumb component, two palm components, and a wrist component. A padded cuff section can be added to the wrist component for comfort.Type: GrantFiled: September 12, 2008Date of Patent: July 7, 2009Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Jeffrey C. Moreland, Gerardo Rodriguez Garay, Norberto Hector Perales Solis, Dave Narasimhan
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Patent number: 7527828Abstract: The present invention provides a method of making an elastomeric article including preparing a non-woven fibrous polymer composition for dip-coating onto a layer of carboxylated acrylonitrile-butadiene elastomeric surface and in particular making industrial or household gloves. By dipping a former into a salt-based coagulant, followed by dipping into an elastomeric dispersion, and finally dipping into a polymer composite fibrous coating, a useful elastomeric article is prepared. The invention also provides an elastomeric article having a first layer, the first layer comprising a natural or synthetic polymer; and a second layer bonded to the first layer, the second layer comprising a polymer composite fibrous coating. The polymer composite fibrous coating includes at least one elastomer or elastomer blend, a fiber or fiber blend, a surfactant, and a micronised wax. The coating can be foamed, and provides improved sweat management and non-shedding properties to a user.Type: GrantFiled: February 16, 2006Date of Patent: May 5, 2009Assignee: Ansell Healthcare Products LLCInventors: Noorman Bin Abu Hassan, David Mark Lucas, Nuzaimah Binti Mustafa
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Publication number: 20090107513Abstract: Condoms having an elastomeric layer and coating containing an anhydrous warming lubricant and at least one or more ingredients dispersed therein, the coating being disposed on one or both surfaces are provided. The ingredients disposed on the elastomeric layer can be solid particles or encapsulated ingredients that are insoluble in the anhydrous warming lubricant and soluble in water. Methods of producing and using these condoms are also provided.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Applicant: ANSELL HEALTHCARE PRODUCTS LLCInventors: Michael S. Zedalis, Beng Sim Chuah, David M. Lucas, Angela Mitiko Shiokawa, Jose R. Siqueira, Dave Narasimhan
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Publication number: 20090077713Abstract: 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: ApplicationFiled: August 20, 2008Publication date: March 26, 2009Applicant: Ansell Healthcare Products LLCInventors: Paul Saunders, Michael Flather, Dave Narasimhan
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Publication number: 20090044571Abstract: A knitted glove made by creating each of the at least fifteen sections using a separate knitting course on a flat knitting machine providing varying stitch dimensions with one or two yarns in one or more sections. Custom stretch characteristics can be provided using one or two yarns providing a tight glove that provides flexibility and ease of movement. The varying stitch dimension is achieved by 1) varying the depth of penetration of the knitting needle into fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roll and knitting head by a mechanism controlled by a computer and/or 3) casting off or picking up additional stitches in a course. The glove includes four finger components, a thumb component, two palm components, and a wrist component. A padded cuff section can be added to the wrist component for comfort.Type: ApplicationFiled: September 12, 2008Publication date: February 19, 2009Applicant: Ansell Healthcare Products LLCInventors: Eric Thompson, Jeffrey C. Moreland, Gerardo Rodriguez Garay, Norberto Hector Perales Solis, Dave Narasimhan
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Patent number: 7434422Abstract: A knitted glove made by creating each of the at least fifteen sections using a separate knitting course on a flat knitting machine providing variable stitch dimensions with one or two yarns. Each of these sections provides custom stretch characteristics using one or two yarns providing a tight glove that provides flexibility and ease of movement. The variable stitch dimension is achieved by 1) varying the depth of penetration of the knitting needle into fabric being knitted by a computer program, 2) adjusting the tension of yarn between a pinch roll and knitting head by a mechanism controlled by a computer and 3) casting off or picking up additional stitches in a course. The glove includes five finger components made from at least ten separately knitted sections, two palm components each made from at least two separately knitted sections, and a wrist component made from at least one knitted section.Type: GrantFiled: June 1, 2006Date of Patent: October 14, 2008Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Jeffrey C. Moreland, Dave Narasimhan, Gerardo Rodriguez Garay, Norberto Hector Perales Solis
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Patent number: 7378043Abstract: 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: January 12, 2005Date of Patent: May 27, 2008Assignee: Ansell Healthcare Products LLCInventors: Noorman Abu Hassan, David M. Lucas, Fazli Shani, Dave Narasimhan
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Publication number: 20080092261Abstract: A glove with an integrally formed arm trough has a hand portion, arm portion and a cuff portion. The arm portion is provided with a first ridge, a second ridge with a larger diameter compared to the arm portion, and a third ridge. During use, the third ridge is pushed towards the first ridge by the user to extend the second ridge away from the arm and towards the hand portion forming a liquid capturing trough while the cuff portion protects from the arm from liquid exposure. The length between the third ridge and the second ridge is larger than the length between the first and second ridge so that the trough created has a positive cone angle and a depth to sufficient to provide liquid volume capacity. The ridges are shaped as sharp edges or C-sections to provide easy forming of the liquid capturing arm trough.Type: ApplicationFiled: September 21, 2006Publication date: April 24, 2008Applicant: Ansell Healthcare Products LLCInventors: Loo Liong Yu, David Mark Lucas, Ong Chin Kok, Karunagaran A/L Arumugam, Dave Narasimhan
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Publication number: 20070204381Abstract: 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: February 21, 2007Publication date: September 6, 2007Applicant: Ansell Healthcare Products LLCInventors: Eric Thompson, Dave Narasimhan, Hafsah Mohd Ghazaly, Jeffrey C. Moreland
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Publication number: 20070192929Abstract: There is provided, in accordance with the principles of the present invention, a glove having a textured surface or textured foam coating produced by embedding a layer of discrete particles, such as a salt, into a previously formed liquid layer, gelling or curing the layer and dissolving the discrete particles to leave a textured or textured foamed surface.Type: ApplicationFiled: February 15, 2007Publication date: August 23, 2007Applicant: Ansell Healthcare Products LLCInventors: Michael Flather, Paul Saunders
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Patent number: 7246509Abstract: 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: December 19, 2006Date of Patent: July 24, 2007Assignee: Ansell Healthcare Products LLCInventors: Fred Hardee, Greg Plemmons, Eric Thompson, San Allen, Dave Narasimhan
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Patent number: 7235505Abstract: A slip-cast article former containing ternary ceramics, particularly of carbide and nitride materials, having the formula Mn+1AXn(MAX), where M is a transition metal, A is an element from Groups IA and IVA of the periodic table, X is nitrogen or carbon and n is 1, 2, or 3. The ternary ceramic article may be a glove or condom former. A process for making a ternary ceramic article employing a slip cast method.Type: GrantFiled: September 26, 2006Date of Patent: June 26, 2007Assignee: Ansell Healthcare Products LLCInventors: Stanley J. Gromelski, Paul Cacioli, Richard L. Cox
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Publication number: 20070118967Abstract: There is provided, in accordance with the principles of the present invention, a glove having a textured surface or textured foam coating produced by embedding a layer of discrete particles, such as a salt, into a previously formed liquid layer, gelling or curing the layer and dissolving the discrete particles to leave a textured or textured foamed surface.Type: ApplicationFiled: December 14, 2006Publication date: May 31, 2007Applicant: Ansell Healthcare Products LLCInventors: Michael Flather, Paul Saunders
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Patent number: D608076Type: GrantFiled: April 9, 2009Date of Patent: January 19, 2010Assignee: Ansell Healthcare Products LLCInventors: Eric Thompson, Jeffrey C. Moreland, Gerardo Rodriguez Garay, Norberto Hector Perales Solis