Patents by Inventor Walter L. Magee
Walter L. Magee 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: 9617389Abstract: An stable ethylsilicate polymer having a dynamic viscosity of 10 centipoises (cps) to 1,000 cps at 25° C. and 50 wt % to 60 wt % silica (SiO2). The stable ethylsilicate polymer includes not greater than 1 wt % of TEOS monomer. The process of forming the ethylsilicate polymer includes a two step addition of catalysts. A hydrolysis catalyst is added initially, for example hydrochloric acid, and a second catalyst is added subsequently, such as phosphonitrilic chloride trimer. The ethylsilicate polymer is used to form MQ resins.Type: GrantFiled: January 3, 2011Date of Patent: April 11, 2017Assignee: Silbond CorporationInventors: Walter L. Magee, Adam W. Emerson, Wallace G. Joslyn, Richard S. Odneal
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Patent number: 8961677Abstract: A stable suspension of ethylpolysilicate nanoparticles having a size of between about 5 nm and 120 nm are in water and stabilized with between about 0.05 and 5 weight percent tetraalkylammonium hydroxide. The particles are between about 95% and 99.5% hydrolyzed and have superior removal rates when used in chemical mechanical polishing. A process for making ethylpolysilicate nanoparticles includes the step of adding reverse osmosis water and 25% tetramethylammonium hydroxide and ammonium hydroxide to a reactor, agitating the mixture and heating the mixture to about 80° C. Tetraethylalkoxy silane is added to the mixture and the mixture stirred and hydrolyzed. Ethanol is then removed. The mixture was then subjected to a vacuum to remove additional distillate. The material left in the reactor was then transferred to a plastic drum.Type: GrantFiled: July 27, 2006Date of Patent: February 24, 2015Assignee: Silbond CorporationInventors: Walter L. Magee, Jr., Charlotte Corbett
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Patent number: 8829144Abstract: An MQ resin including at least 30% SiO2, preferably at least 50 wt % SiO2, and having dynamic viscosity of 50 centipoises (cps) to 750 cps at 25° C. is produced from a stable ethylsilicate polymer. The ethylsilicate polymer includes not greater than 1 wt % of TEOS monomer. The ethylsilicate polymer is produced by a two step addition of catalysts wherein a hydrolysis catalyst, for example, hydrochloric acid is added initially and a second catalyst, such as phosphonitrilic chloride trimer, is added subsequently.Type: GrantFiled: January 3, 2011Date of Patent: September 9, 2014Assignee: Silbond CorporationInventors: Walter L. Magee, Adam W. Emerson, Wallace G. Joslyn, Richard S. Odneal
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Patent number: 8217087Abstract: An improved aerogel and a process for production of the same. The improved aerogel which has a significantly reduced dust (e.g., aerogel fines) and static charge, as compared with conventional aerogel products. The aerogel also has a “sticky” or “tacky” nature which can be used to attract any available dust, fines and/or particulate matter and also restrict flowability of aerogel granules, for example, out of a breached container and thereby minimize loss of the aerogel product through any breached opening.Type: GrantFiled: February 14, 2012Date of Patent: July 10, 2012Assignee: Keller Companies, Inc.Inventors: Robert R. Keller, Walter L. Magee, Jr., William D. Varnell, John W. McKenna, George N. Ghattas, Jonathan A. Beaupre, Janet D. Virr
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Publication number: 20110184142Abstract: An MQ resin including at least 30% SiO2, preferably at least 50 wt % SiO2, and having dynamic viscosity of 50 centipoises (cps) to 750 cps at 25° C. is produced from a stable ethylsilicate polymer. The ethylsilicate polymer includes not greater than 1 wt % of TEOS monomer. The ethylsilicate polymer is produced by a two step addition of catalysts wherein a hydrolysis catalyst, for example, hydrochloric acid is added initially and a second catalyst, such as phosphonitrilic chloride trimer, is added subsequently.Type: ApplicationFiled: January 3, 2011Publication date: July 28, 2011Inventors: Walter L. Magee, Adam W. Emerson, Wallace G. Joslyn, Richard S. Odneal
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Publication number: 20110160429Abstract: An stable ethylsilicate polymer having a dynamic viscosity of 10 centipoises (cps) to 1,000 cps at 25° C. and 50 wt % to 60 wt % silica (SiO2). The stable ethylsilicate polymer includes not greater than 1 wt % of TEOS monomer. The process of forming the ethylsilicate polymer includes a two step addition of catalysts. A hydrolysis catalyst is added initially, for example hydrochloric acid, and a second catalyst is added subsequently, such as phosphonitrilic chloride trimer. The ethylsilicate polymer is used to form MQ resins.Type: ApplicationFiled: January 3, 2011Publication date: June 30, 2011Inventors: Walter L. Magee, Adam W. Emerson, Wallace G. Joslyn, Richard S. Odneal
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Patent number: 7884170Abstract: A stable MQ resin solution with over 50% SiO2 and having viscosity of 50 cps at 25° C. to about 750 cps at 25° C. and which is essential free of monomer is disclosed. The stable resin solution is made by a two step addition of catalysts wherein a hydrolysis catalysts, as for example, hydrochloric acid is added initially and a second catalysts such as Phosphonitrilic chloride trimer is added subsequently.Type: GrantFiled: June 10, 2008Date of Patent: February 8, 2011Assignee: Silbond CorporationInventors: Walter L. Magee, Adam W. Emerson, Wallace G. Joslyn, Richard S. Odneal
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Publication number: 20090306326Abstract: A stable MQ resin solution with over 50% SiO2 and having viscosity of 50 cps at 25° C. to about 750 cps at 25° C. and which is essential free of monomer is disclosed. The stable resin solution is made by a two step addition of catalysts wherein a hydrolysis catalysts, as for example, hydrochloric acid is added initially and a second catalysts such as Phosphonitrilic chloride trimer is added subsequently.Type: ApplicationFiled: June 10, 2008Publication date: December 10, 2009Inventors: Walter L. Magee, Adam W. Emerson, Wallace G. Joslyn, Richard S. Odneal
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Publication number: 20070251418Abstract: A stable suspension of ethylpolysilicate nanoparticles having a size of between about 5 nm and 120 nm are in water and stabilized with between about 0.05 and 5 weight percent tetraalkylammonium hydroxide. The particles are between about 95% and 99.5% hydrolyzed and have superior removal rates when used in chemical mechanical polishing. A process for making ethylpolysilicate nanoparticles includes the step of adding reverse osmosis water and 25% tetramethylammonium hydroxide and ammonium hydroxide to a reactor, agitating the mixture and heating the mixture to about 80° C. Tetraethylalkoxy silane is added to the mixture and the mixture stirred and hydrolyzed. Ethanol is then removed. The mixture was then subjected to a vacuum to remove additional distillate. The material left in the reactor was then transferred to a plastic drum.Type: ApplicationFiled: July 27, 2006Publication date: November 1, 2007Inventors: Walter L. Magee, William J. Corbett, Charlotte Corbett
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Patent number: 5401566Abstract: Fabrics coated with an organopolysiloxane composition containing (a) an organopolysiloxane having aliphatic unsaturation, (b) an organohydrogenpolysiloxane having SiH groups in which the silicon to hydrogen ratio is from 10:1 to 1:1, (c) a catalyst which is capable of promoting the addition of SiH groups to the aliphatically unsaturated groups, (d) a hydrophobic silica filler, (e) a flame retardant and optionally an adhesion promoting agent.The coated fabric can be used in manufacturing air bags for automobiles.Type: GrantFiled: August 26, 1993Date of Patent: March 28, 1995Assignee: Wacker Silicones CorporationInventors: Walter L. Magee, Gerhard Preiner, Johann Muller
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Patent number: 4725630Abstract: Polymerizable .alpha., .beta.-unsaturated carbonyl-functional silicone compositions are obtained from the reaction of thiol-functional organopolysiloxanes with an .alpha., .beta.-unsaturated carbonyl-functional compound having at least two acryloyl or methacryloyl groups or mixtures thereof per molecule in the presence of a base catalyst.The .alpha., .beta.-unsaturatured carbonyl-functional silicone compositions may be combined with a photosensitizer and/or a free radical generator and polymerized by radiation and/or heat.Type: GrantFiled: June 1, 1987Date of Patent: February 16, 1988Assignee: Wacker Silicones CorporationInventors: Walter L. Magee, Eugene R. Martin
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Patent number: 4606933Abstract: Radiation polymerizable acrylate-functional organopolysiloxanes having the formula ##STR1## where R is a radical selected from monovalent hydrocarbon radicals, substituted monovalent hydrocarbon radicals having from 1 to 20 carbon atoms or monovalent hydrocarbonoxy radicals having from 1 to 20 carbon atoms, or a radical of the formula ##STR2## in which at least one R is a radical having the above formula, R.sup.1 is a divalent radical selected from a saturated divalent hydrocarbon radical having up to 20 carbon atoms, a divalent hydrocarbonoxy radical in which the oxygen is in the form of an ether linkage and an unsaturated divalent hydrocarbon radical having from 3 to 10 carbon atoms; R.sup.2 is hydrogen or a methyl radical; R.sup.3 is a linear or branched radical having 2, 3, 4, 5 or 6 valences in which the radical is selected from a substituted hydrocarbon radical, or a hydrocarbon ether or thioether radical having one or more repeating units and the terminal atoms of the R.sup.Type: GrantFiled: September 25, 1985Date of Patent: August 19, 1986Assignee: SWS Silicones CorporationInventors: Roy M. Griswold, Walter L. Magee, Paul A. Manis, Eugene R. Martin
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Patent number: 4524214Abstract: Esters of glyoxylic acids are formed by the oxidation of an organoglycolate ester using a hypohalide oxidizing agent, preferably under phase transfer conditions using a phase transfer catalyst. An example of a suitable oxidizing agent is sodium hypohalite, and a preferred starting material is methyl mandelate.Type: GrantFiled: November 3, 1983Date of Patent: June 18, 1985Assignee: Stauffer Chemical CompanyInventors: Mervin E. Brokke, Walter L. Magee, Jr.
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Patent number: 4359431Abstract: Arylphosphinic acids are prepared by reacting an aromatic compound with phosphorus trichloride in the presence of aluminum chloride to form an aluminum/phosphorus complex and then hydrolyzing the complex with aqueous phosphoric acid to form the arylphosphinic acid as an insoluble phase and a soluble aluminum salt. The arylphosphinic acid and aluminum salt are then easily separated.Type: GrantFiled: May 4, 1981Date of Patent: November 16, 1982Assignee: Stauffer Chemical CompanyInventors: Walter L. Magee, Jr., Arthur C. Bayer
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Patent number: 4351775Abstract: Alkyl vanadates are prepared by the reaction of vanadium pentoxide and an alkyl alcohol while heating in the presence of an alkane azeotroping agent to assist in the removal of water by-product.Type: GrantFiled: March 20, 1981Date of Patent: September 28, 1982Assignee: Stauffer Chemical CompanyInventor: Walter L. Magee, Jr.
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Patent number: 4288604Abstract: Tetraalkyl silicates are produced by the reaction of silicon metal with an alkanol in the presence of an alkali metal salt of an alkoxyalkoxy alcohol or a polyalkylene glycol in either an alkoxyalkoxy alcohol or a polyalkylene glycol or mixtures thereof and recovery of the product. Tetramethyl silicate and tetraethyl silicate are the preferred products. The preferred alkoxyalkoxy alcohol is 2-(2-butoxyethoxy)ethanol. The preferred glycol is diethylene glycol. An indifferent solvent and/or a hydroxide-scavenger may be employed in the reaction mixture.Type: GrantFiled: May 19, 1980Date of Patent: September 8, 1981Assignee: Stauffer Chemical CompanyInventors: Walter L. Magee, Jeffrey E. Telschow
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Patent number: 4251451Abstract: An improved process for reacting a mixture of branched and linear alcohols with a caustic, optionally in the presence of a catalyst, to produce a reaction mixture containing carboxylic acid salts, and to liberate hydrogen. The improvement comprises introducing into the reaction mixture at about a time when a significant evolution of hydrogen from the mixture begins to occur, an effective amount of an inert diluent for the reaction mixture. The effective amount is sufficient to maintain the fluidity of the reaction mixture. A preferred diluent is mineral oil. The improvement reduces the tendency of the reaction mixture to foam and solidify, thus permitting the reaction to proceed to completion and permitting the easy removal of the reaction mixture from the reaction zone. Additionally, the improvement insures that the branched and linear mixture of carboxylic acid salts produced substantially corresponds to the branched and linear mixture of alcohols reacted.Type: GrantFiled: December 26, 1979Date of Patent: February 17, 1981Assignee: Stauffer Chemical CompanyInventors: Walter L. Magee, Arthur C. Bayer
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Patent number: 4191582Abstract: Compositions containing certain polymeric alkoxysilanes and refractory materials.The polymeric alkoxysilanes comprise a polymer network having the average formula: ##EQU1## wherein each R is an independently selected hydrocarbon or hydrocarbon ether radical, each R.sup.1 is an independently selected hydrocarbon radical, and all of said radicals are free of aliphatic unsaturation: a has a value from 1 to 3; and b has a value from 0.0001 to 1.0. These polymers are made by reacting an alkoxysilane of the formula Si(OR).sub.a O.sub.4-a/2 with water and with an organosulfonic acid of the formula R.sub.1 SO.sub.3 H. The compositions are useful for the preparation of investment casting molds.Type: GrantFiled: August 21, 1978Date of Patent: March 4, 1980Assignee: Stauffer Chemical CompanyInventor: Walter L. Magee, Jr.
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Patent number: 4172737Abstract: Compositions containing certain polymeric alkoxysilanes and zinc dust.The polymeric alkoxysilanes comprise a polymer network having the average formula: ##STR1## WHEREIN EACH R is an independently selected hydrocarbon or hydrocarbon ether radical, each R.sup.1 is an independently selected hydrocarbon radical, and all of said radicals are free of aliphatic unsaturation: a has a value from 1 to 3; and b has a value from 0.0001 to 1.0. These polymers are made by reacting an alkoxysilane of the formula ##STR2## WITH WATER AND WITH AN ORGANOSULFONIC ACID OF THE FORMULA R.sub.1 SO.sub.3 H. The compositions are useful for the protection of ferrous surfaces.Type: GrantFiled: August 15, 1978Date of Patent: October 30, 1979Assignee: Stauffer Chemical CompanyInventor: Walter L. Magee, Jr.
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Patent number: RE30284Abstract: Polymeric alkoxysilanes which comprise a polymer network of the average formula ##STR1## wherein each R is an independently selected hydrocarbon or hydrocarbon ether radical, each .[.R'.]..Iadd.R.sup.1 .Iaddend. is an independently selected hydrocarbon radical, all of said radicals being free of aliphatic unsaturation, a has a value from 1 to 3; and b has a value from 0.0001 to 1.0. These polymers are made by reacting an alkoxysilane of the formula ##EQU1## with water and with an organosulfonic acid of the formula R.sup.1 SO.sub.3 H. These polymers are useful in zinc-rich paints and in binders for investment castings.Type: GrantFiled: April 24, 1978Date of Patent: May 27, 1980Assignee: Stauffer Chemical CompanyInventor: Walter L. Magee, Jr.