Patents by Inventor Lawson Gibson Wideman
Lawson Gibson Wideman 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: 8030397Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: GrantFiled: November 2, 2008Date of Patent: October 4, 2011Assignee: The Goodyear Tire & Rubber CompanyInventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
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Patent number: 7608658Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: GrantFiled: November 7, 2008Date of Patent: October 27, 2009Assignee: The Goodyear Tire & Rubber CompanyInventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
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Publication number: 20090062456Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: ApplicationFiled: November 7, 2008Publication date: March 5, 2009Applicant: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
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Publication number: 20090054666Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: ApplicationFiled: November 2, 2008Publication date: February 26, 2009Applicant: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
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Patent number: 7485682Abstract: The present invention relates to a soft thermoplastic elastomer composition that is free of thermoplastic resin that can be utilized in manufacturing shoe sole inserts, seals, gaskets, wheels, and that can be overmolded on a hard substrate, such as a metal or a thermoplastic resin, for grips or handles on various household items.Type: GrantFiled: November 7, 2005Date of Patent: February 3, 2009Assignees: The Goodyear Tire & Rubber Company, GLS CorporationInventors: Manoj Ajbani, Christopher Kiehl, Lawson Gibson Wideman, Rajesh Varma
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Patent number: 7482404Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: GrantFiled: September 15, 2004Date of Patent: January 27, 2009Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Vanessa Marika Guscoff, Michael Joseph Rachita
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Patent number: 7417089Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, wherein the article has improved tensile strength and improved tear strength, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an ether moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: GrantFiled: October 12, 2006Date of Patent: August 26, 2008Assignee: The Goodyear Tire & Rubber CompanyInventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
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Patent number: 7351768Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, wherein the article has improved tensile strength and improved tear strength, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an ether moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: GrantFiled: October 13, 2006Date of Patent: April 1, 2008Assignee: The Goodyear Tire & Rubber CompanyInventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
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Patent number: 7271218Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, wherein the article has improved tensile strength and improved tear strength, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an ether moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy)silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.Type: GrantFiled: June 25, 2004Date of Patent: September 18, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Vanessa Marika Guscoff, Michael Joseph Rachita
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Patent number: 7208549Abstract: The present invention is based upon the unexpected finding that polyisoprene rubber which is clear and of high purity can be cured utilizing the curative system of this invention to attain an elongation at break of greater than 1200% without compromising the clarity or purity of the rubber. The curative system of this invention is comprised of a carbonyl inhibited platinum catalyst, and a branched crosslinking agent having at least 2 hydrosilyl groups per molecule. The curative system of this invention can be used to cure solid polyisoprene rubber that is used in a wide variety of application and is a particular value in curing polyisoprene rubber used in manufacturing sporting goods, healthcare, and medical products.Type: GrantFiled: August 26, 2005Date of Patent: April 24, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Vanessa Marika Guscoff, Michael Joseph Rachita
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Patent number: 7015284Abstract: The present invention relates to a soft thermoplastic elastomer composition that is free of thermoplastic resin that can be utilized in manufacturing shoe sole inserts, seals, gaskets, wheels, and that can be overmolded on a hard substrate, such as a metal or a thermoplastic resin, for grips or handles on various household items.Type: GrantFiled: February 25, 2004Date of Patent: March 21, 2006Assignees: The Goodyear Tire & Rubber Company, GLS CorporationInventors: Manoj Ajbani, Christopher Kiehl, Lawson Gibson Wideman, Rajesh Varma
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Patent number: 6972309Abstract: The present invention is based upon the unexpected finding that polyisoprene rubber which is clear and of high purity can be cured utilizing the curative system of this invention to attain an elongation at break of greater than 1200% without compromising the clarity or purity of the rubber. The curative system of this invention is comprised of a carbonyl inhibited platinum catalyst, and a branched crosslinking agent having at least 2 hydrosilyl groups per molecule. The curative system of this invention can be used to cure solid polyisoprene rubber that is used in a wide variety of application and is a particular value in curing polyisoprene rubber used in manufacturing sporting goods, healthcare, and medical products.Type: GrantFiled: June 17, 2004Date of Patent: December 6, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Vanessa Marika Guscoff, Michael Joseph Rachita
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Patent number: 6872771Abstract: The invention relates to a pneumatic tire having a component comprising a rubber containing the reaction product of a flavone and a methylene donor.Type: GrantFiled: August 22, 2002Date of Patent: March 29, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Barbara Ann Ford, Paul Harry Sandstrom, Lawson Gibson Wideman
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Patent number: 6797757Abstract: The invention relates to articles of manufacture, such as for example, tires and industrial products, which have at least one component comprised of a rubber composition which contains particles of pre-sulfur vulcanized rubber (e.g. ground recycled rubber) and impure tetrathiodipropionic acid, namely a blend comprised primarily of tetrathiodipropionic acid and trithiodipropionic acids of a weight ratio thereof in a range of about 80/20 to about 30/70. Said blend is referred to herein as an S4/S3 blend. The S4/S3 blend may be introduced directly to a rubber composition or may be provided as particles of a composite of said S4/S3 and a particulate support therefor for a purpose of aiding the dispersion of the S4 and S3 within the elastomer host. Representative of such support, or carrier, may be, for example, silica, particularly amorphous precipitated silica, carbon black, clay, starch, calcium carbonate, calcium silicate, titanium dioxide and the like, wherein carbon black is preferred.Type: GrantFiled: May 8, 2002Date of Patent: September 28, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, George Frank Balogh
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Patent number: 6727374Abstract: The present invention relates to asymmetrical siloxy compounds of the formula wherein R1, R2 and R3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; and R4 is selected from the group consisting of substituted or unsubstituted alkylene groups having from 1 to 18 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 12 carbon atoms. The asymmetrical siloxy disulfide compounds are prepared from N-cyclohexylthiophthalimide and a mercaptoalkoxysilane.Type: GrantFiled: July 20, 2001Date of Patent: April 27, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul Harry Sandstrom, Lawson Gibson Wideman, Theodore Lamson Folk
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Patent number: 6713549Abstract: The present invention relates to a rubber composition which contains reinforcement selected from at least one of synthetic amorphous silica, carbon black and silica treated carbon black, non-alkoxysilane containing coupling agent, wherein at least one of said reinforcements is pre-treated prior to its addition to said rubber composition with at least one of an alkylsilane hydrophobating agent and/or non-alkoxysilane containing coupling agent, and to articles of manufacture, including tires, having at least one component comprised of such rubber composition.Type: GrantFiled: September 14, 2000Date of Patent: March 30, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Kevin James Pyle, Richard Robinson Smith, Paul Harry Sandstrom
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Patent number: 6660791Abstract: The invention relates to articles of manufacture, such as for example, tires and industrial products, which have at least one component comprised of a rubber composition which contains particles of pre-sulfur vulcanized rubber (e.g. ground recycled rubber) and high purity trithiodipropionic acid, wherein said trithiodipropionic acid is preferably provided as particles of a carbon black composite comprised of carbon black and said high purity trithiodipropionic acid. Said high purity trithiodipropionic acid is comprised of polythiodipropionic acids containing at least 80 weight percent trithiodipropionic acid based upon said polythiodipropionic acids.Type: GrantFiled: June 29, 2001Date of Patent: December 9, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, George Frank Balogh
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Patent number: 6653387Abstract: This invention relates to a conjugated diene-based rubber composition reinforced with particulate alumina in combination with a non-silane coupling agent as tetrathiodipropionic acid and/or trithiodipropionic acid. The invention includes an article of manufacture, including a tire, having at least one component comprised of such rubber composition.Type: GrantFiled: September 26, 2001Date of Patent: November 25, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Alfredo Guillermo Causa, Lawson Gibson Wideman, Glen Hargis
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Patent number: 6627686Abstract: The present invention relates to mixed diaryl-p-phenylenediamine disulfides and its use in compounds. The mixed diaryl-p-phenylenediamine are of the formula and mixtures thereof wherein R1 and R2 are each independently selected from the group consisting of hydrogen and alkyls having from 1 to 8 carbon atoms.Type: GrantFiled: September 6, 2000Date of Patent: September 30, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul Harry Sandstrom, Lawson Gibson Wideman
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Patent number: 6555609Abstract: This invention relates to a conjugated diene-based rubber composition reinforced with silica-based reinforcement together with a non-silane coupling agent as a combination of 1-thioglycerol(3-mercapto-1,2-propanediol) and 2,2′-benzothiazyl disulfide. Said coupling agent materials may be provided for mixing with said diene-based rubber(s), for example, as individual materials, as at least one of said materials being supported on a carbon black carrier or as being pre-reacted, or otherwise pre-treated, with synthetic silica aggregates. The invention includes an article of manufacture, including a tire, having at least one component comprised of such rubber composition.Type: GrantFiled: September 14, 2000Date of Patent: April 29, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Kevin James Pyle, Richard Robinson Smith, Paul Harry Sandstrom