Patents by Inventor Timothy M. Lipinski
Timothy M. Lipinski 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).
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Patent number: 10414112Abstract: A nitrile-rubber medical exam glove composed of a glove body which is a flexible layer of nitrile-butadiene rubber. The glove body has a chlorinated first surface forming a donning side of the glove body and an un-chlorinated second surface forming a grip side of the glove body. The elastomeric glove also includes a substantially uniform distribution of a release agent distributed over the un-chlorinated second surface of the glove body. The elastomeric glove has: (a) an average thickness of between about 0.03 to 0.12 mm in a palm region of the glove body as measured in accordance with ASTM D3767, procedure A; (b) an un-chlorinated second surface of the glove body characterized by a Surface Root Mean Square Roughness of from about 3.00 μm to about 6.55 μm; and (c) a failure rate of less than about 1 percent when the elastomeric glove is subjected to pinhole leak testing generally in accordance with ASTM D5151-06.Type: GrantFiled: December 17, 2014Date of Patent: September 17, 2019Assignee: O&M Halyard, Inc.Inventors: Timothy M. Lipinski, Choong Kheng Tang
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Patent number: 9926439Abstract: An carboxylated nitrile-butadiene rubber latex formulation composed of a blend of a first acrylonitrile terpolymer and a second acrylonitrile terpolymer, wherein: the acrylonitrile content of the blended terpolymers is between 17 and 45% by weight, the methacrylic acid content of the blended terpolymers is less than 15% by weight, and the remaining balance of the terpolymers being butadiene. The invention also includes an elastomeric nitrile rubber article made from the formulation.Type: GrantFiled: November 2, 2015Date of Patent: March 27, 2018Assignee: Avent, Inc.Inventor: Timothy M. Lipinski
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Publication number: 20160053095Abstract: An carboxylated nitrile-butadiene rubber latex formulation composed of a blend of a first acrylonitrile terpolymer and a second acrylonitrile terpolymer, wherein: the acrylonitrile content of the blended terpolymers is between 17 and 45% by weight, the methacrylic acid content of the blended termpolymers is less than 15% by weight, and the remaining balance of the terpolymers being butadiene. The invention also includes an elastomeric nitrile rubber article made from the formulation.Type: ApplicationFiled: November 2, 2015Publication date: February 25, 2016Inventor: Timothy M. Lipinski
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Patent number: 9179717Abstract: An carboxylated nitrile-butadiene rubber latex formulation composed of a blend of a first acrylonitrile terpolymer and a second acrylonitrile terpolymer, wherein: the acrylonitrile content of the blended terpolymers is between 17 and 45% by weight, the methacrylic acid content of the blended terpolymers is less than 15% by weight, and the remaining balance of the terpolymers being butadiene. The invention also includes an elastomeric nitrile rubber article made from the formulation.Type: GrantFiled: June 13, 2013Date of Patent: November 10, 2015Assignee: Avent, Inc.Inventor: Timothy M. Lipinski
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Publication number: 20150102519Abstract: A nitrile-rubber medical exam glove composed of a glove body which is a flexible layer of nitrile-butadiene rubber. The glove body has a chlorinated first surface forming a donning side of the glove body and an un-chlorinated second surface forming a grip side of the glove body. The elastomeric glove also includes a substantially uniform distribution of a release agent distributed over the un-chlorinated second surface of the glove body. The elastomeric glove has: (a) an average thickness of between about 0.03 to 0.12 mm in a palm region of the glove body as measured in accordance with ASTM D3767, procedure A; (b) an un-chlorinated second surface of the glove body characterized by a Surface Root Mean Square Roughness of from about 3.00 μm to about 6.55 μm; and (c) a failure rate of less than about 1 percent when the elastomeric glove is subjected to pinhole leak testing generally in accordance with ASTM D5151-06.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Inventors: Timothy M. Lipinski, Choong Kheng Tang
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Patent number: 8936843Abstract: A nitrile-rubber medical exam glove composed of a glove body which is a flexible layer of nitrile-butadiene rubber having a chlorinated first surface forming a donning side and an un-chlorinated second surface forming a grip side. The elastomeric glove also includes a substantially uniform distribution of a release agent distributed over the un-chlorinated second surface of the glove body. The elastomeric glove has: (a) an average thickness of between about 0.03 to 0.12 mm in a palm region of the glove body as measured in accordance with ASTM D3767, procedure A; (b) an un-chlorinated second surface of the glove body characterized by a Surface Root Mean Square Roughness of from about 3.00 ?m to about 6.55 ?m; and (c) a failure rate of less than about 1 percent when the elastomeric glove is subjected to pinhole leak testing generally in accordance with ASTM D5151-06.Type: GrantFiled: August 27, 2009Date of Patent: January 20, 2015Assignee: Avent, Inc.Inventors: Timothy M. Lipinski, Choong Kheng Tang
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Patent number: 8758662Abstract: An improved process and material for making elastomeric nitrile rubber articles is disclosed. In particular, the process and material formulation can produce nitrile rubber based articles, which exhibit force-strain characteristics that are comparable to those of natural rubber latex articles, while maintaining the tensile strength properties of nitrile rubber. The process includes an accelerator composition at the pre-cure stage having a dithiocarbamate, a thiazole, and a guanidine compound. The invention also includes an elastomeric nitrile rubber product made by the process, such as examination, surgical, or work gloves.Type: GrantFiled: July 28, 2011Date of Patent: June 24, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Timothy M. Lipinski
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Patent number: 8470422Abstract: An carboxylated nitrile-butadiene rubber latex formulation composed of a blend of a first acrylonitrile terpolymer and a second acrylonitrile terpolymer, wherein: the acrylonitrile content of the blended terpolymers is between 17 and 45% by weight, the methacrylic acid content of the blended termpolymers is less than 15% by weight, and the remaining balance of the terpolymers being butadiene. The invention also includes an elastomeric nitrile rubber article made from the formulation.Type: GrantFiled: July 27, 2012Date of Patent: June 25, 2013Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Timothy M. Lipinski
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Publication number: 20120291180Abstract: An carboxylated nitrile-butadiene rubber latex formulation composed of a blend of a first acrylonitrile terpolymer and a second acrylonitrile terpolymer, wherein: the acrylonitrile content of the blended terpolymers is between 17 and 45% by weight, the methacrylic acid content of the blended termpolymers is less than 15% by weight, and the remaining balance of the terpolymers being butadiene. The invention also includes an elastomeric nitrile rubber article made from the formulation.Type: ApplicationFiled: July 27, 2012Publication date: November 22, 2012Inventor: Timothy M. Lipinski
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Patent number: 8250673Abstract: An improved process and material for making elastomeric nitrile rubber articles is disclosed. In particular, the process and material formulation can produce nitrile rubber based articles, which exhibit force-strain characteristics that are comparable to those of natural rubber latex articles, while maintaining the tensile strength properties of nitrile rubber. The process includes an accelerator composition at the pre-cure stage having a dithiocarbamate, a thiazole, and a guanidine compound. The invention also includes an elastomeric nitrile rubber product made by the process, such as examination, surgical, or work gloves.Type: GrantFiled: February 10, 2012Date of Patent: August 28, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Timothy M. Lipinski
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Patent number: 8250672Abstract: A material for making elastomeric nitrile rubber articles is disclosed. In particular, the process and material formulation can produce nitrile rubber based articles, which exhibit force-strain characteristics that are comparable to those of natural rubber latex articles, while maintaining the tensile strength properties of nitrile rubber. The process includes an accelerator composition at the pre-cure stage having a dithiocarbamate, a thiazole, and a guanidine compound. The invention also includes an elastomeric nitrile rubber product made by the process, such as examination, surgical, or work gloves, which can have an exterior coating over naked rubber selected from either a silicone emulsion or oil, glycerin solution, a combined mixture of silicone and glycerin/glycerol, a fluorocarbon release agent, or a natural or synthetic hydrocarbon-based oil in amounts that do not degrade said substrate rubber material.Type: GrantFiled: May 2, 2006Date of Patent: August 28, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Timothy M. Lipinski, Tang Choong Kheng, Katherine L. Dziak
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Publication number: 20120137404Abstract: An improved process and material for making elastomeric nitrile rubber articles is disclosed. In particular, the process and material formulation can produce nitrile rubber based articles, which exhibit force-strain characteristics that are comparable to those of natural rubber latex articles, while maintaining the tensile strength properties of nitrile rubber. The process includes an accelerator composition at the pre-cure stage having a dithiocarbamate, a thiazole, and a guanidine compound. The invention also includes an elastomeric nitrile rubber product made by the process, such as examination, surgical, or work gloves.Type: ApplicationFiled: February 10, 2012Publication date: June 7, 2012Inventor: Timothy M. Lipinski
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Patent number: 8117672Abstract: An improved process and material for making elastomeric nitrile rubber articles is disclosed. In particular, the process and material formulation can produce nitrile rubber based articles, which exhibit force-strain characteristics that are comparable to those of natural rubber latex articles, while maintaining the tensile strength properties of nitrile rubber. The process includes an accelerator composition at the pre-cure stage having a dithiocarbamate, a thiazole, and a guanidine compound. The invention also includes an elastomeric nitrile rubber product made by the process, such as examination, surgical, or work gloves.Type: GrantFiled: August 2, 2005Date of Patent: February 21, 2012Assignee: Kimberly-Clark Worldwide Inc.Inventor: Timothy M. Lipinski
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Publication number: 20110287254Abstract: An improved process and material for making elastomeric nitrile rubber articles is disclosed. In particular, the process and material formulation can produce nitrile rubber based articles, which exhibit force-strain characteristics that are comparable to those of natural rubber latex articles, while maintaining the tensile strength properties of nitrile rubber. The process includes an accelerator composition at the pre-cure stage having a dithiocarbamate, a thiazole, and a guanidine compound. The invention also includes an elastomeric nitrile rubber product made by the process, such as examination, surgical, or work gloves.Type: ApplicationFiled: July 28, 2011Publication date: November 24, 2011Inventor: Timothy M. Lipinski
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Publication number: 20110191936Abstract: A nitrile-rubber medical exam glove composed of a glove body which is a flexible layer of nitrile-butadiene rubber. The glove body has a chlorinated first surface forming a donning side of the glove body and an un-chlorinated second surface forming a grip side of the glove body. The elastomeric glove also includes a substantially uniform distribution of a release agent distributed over the un-chlorinated second surface of the glove body. The elastomeric glove has: (a) an average thickness of between about 0.03 to 0.12 mm in a palm region of the glove body as measured in accordance with ASTM D3767, procedure A; (b) an un-chlorinated second surface of the glove body characterized by a Surface Root Mean Square Roughness of from about 3.00 Î ¼ m to about 6.55 Î ¼ m; and (c) a failure rate of less than about 1 percent when the elastomeric glove is subjected to pinhole leak testing generally in accordance with ASTM D5151-06.Type: ApplicationFiled: August 27, 2009Publication date: August 11, 2011Inventors: Timothy M. Lipinski, Choong Kheng Tang
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Publication number: 20080311409Abstract: A coagulant formulation having a miscible silicone surfactant in the coagulant, which can be applied directly to a bare mold surface and replace powder-based release agents, along with a method of using the coagulant in the manufacture of shaped, elastomeric products is provided. The silicone surfactant forms a smooth surface, from which a shaped article can be easily stripped, and which does not require a post-curing halogenation process to remove powder particles.Type: ApplicationFiled: June 4, 2008Publication date: December 18, 2008Inventor: Timothy M. Lipinski
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Patent number: 6031042Abstract: Nitrile rubber compositions, articles of manufacture made therefrom, and methods of making them, are disclosed. The nitrile rubber compositions of the invention are substantially free of zinc oxide, and have good strength and chemical resistance while being softer than many conventional nitrile rubbers. The invention provides articles of manufacture, including gloves, which are soft, yet strong, and can be economically manufactured.Type: GrantFiled: June 20, 1996Date of Patent: February 29, 2000Assignee: North Safety Products Inc.Inventor: Timothy M. Lipinski
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Patent number: 5447976Abstract: An elastic composite is provided having natural rubber and epoxidized natural rubber components. Compared to known composites, the present composition achieves reduced oil swell and absorption, lower permanent set, lower modulus of elasticity, and high tear strength. When formed in a tape, the composition is extremely useful for legbands, straps and contours of swimwear and other garments.Type: GrantFiled: July 25, 1994Date of Patent: September 5, 1995Assignee: The Moore CompanyInventors: Patrick J. Curtin, Timothy M. Lipinski, William E. Russell