Patents by Inventor Marion Glen Waggoner
Marion Glen Waggoner 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: 9018315Abstract: The properties of a liquid crystalline polymer (LCP) containing ester linkages and made in the presence of an excess of diol are improved by treating the LCP with a dicarboxylic acid at elevated temperature. The resulting LCPs are useful as molding resins and for films.Type: GrantFiled: April 11, 2014Date of Patent: April 28, 2015Assignee: Ticona LLCInventors: Marion Glen Waggoner, Richard Alan Jackson
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Publication number: 20140243481Abstract: The properties of a liquid crystalline polymer (LCP) containing ester linkages and made in the presence of an excess of diol are improved by treating the LCP with a dicarboxylic acid at elevated temperature. The resulting LCPs are useful as molding resins and for films.Type: ApplicationFiled: April 11, 2014Publication date: August 28, 2014Applicant: Ticona LLCInventors: Marion Glen Waggoner, Richard Alan Jackson
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Patent number: 8697817Abstract: The properties of a liquid crystalline polymer (LCP) containing ester linkages and made in the presence of an excess of diol are improved by treating the LCP with a dicarboxylic acid at elevated temperature. The resulting LCPs are useful as molding resins and for films.Type: GrantFiled: September 2, 2004Date of Patent: April 15, 2014Assignee: Ticona LLCInventors: Marion Glen Waggoner, Richard Alan Jackson
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Patent number: 8269154Abstract: Ovenware for microwave ovens which contain a composition comprising a susceptor and a thermoplastic or thermoset polymer are improved when the composition also has a thermal conductivity of about 0.7 W/m° K. or more. Heat generated by absorption of microwave radiation by the susceptor is more readily conducted to the food being cooked when the thermal conductivity of the composition is high, particularly when the part containing the susceptor is relatively thick. Also described are designs for various pieces of ovenware containing this composition.Type: GrantFiled: May 22, 2006Date of Patent: September 18, 2012Assignee: Ticona LLCInventors: Michael Robert Samuels, Marion Glen Waggoner, Joel D. Citron, Roger Moons, Charles J. Molnar
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Publication number: 20100102467Abstract: In an improved polymer melt cutter a gas is added to the cooling liquid before the cooling liquid enters the cutting chamber, or is added directly through the cutting chamber wall. This forms a cooling liquid/gas mixture in the cutting chamber, which has the advantage of providing easier startups, lower operating costs, and other advantages. Processes associated with the improved polymer melt cutter are also disclosed.Type: ApplicationFiled: October 21, 2009Publication date: April 29, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Marion Glen Waggoner, David Neil Marks
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Publication number: 20090275697Abstract: The properties of a liquid crystalline polymer (LCP) containing ester linkages and made in the presence of an excess of diol are improved by treating the LCP with a dicarboxylic acid at elevated temperature. The resulting LCPs are useful as molding resins and for films.Type: ApplicationFiled: September 2, 2004Publication date: November 5, 2009Inventors: Marion Glen Waggoner, Richard Alan Jackson
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Patent number: 7578950Abstract: A liquid crystal polymer composition comprising specified amounts of unsized glass filler and a liquid crystalline polymer having a melting point of about 280° C. or more has improved high temperature stability compared with similar compositions containing sized glass fillers. The compositions are particularly useful where the composition is exposed for long time periods to high temperatures, such as parts in electrical and electronic apparatus, and cookware.Type: GrantFiled: June 24, 2004Date of Patent: August 25, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Olaf Norbert Kirchner, Marion Glen Waggoner
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Patent number: 7226553Abstract: Underwater melt pelletizer dies which have a highly thermally conductive pathway from their heating source to the vicinity of the polymer exit end of their die holes and have a thermally insulating material at that end of their die holes have improved operability and can pelletize thermoplastics which are otherwise difficult or impossible to pelletize with such an apparatus.Type: GrantFiled: July 20, 2004Date of Patent: June 5, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Alan Jackson, Dennis Jack Royer, Marion Glen Waggoner
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Patent number: 7105106Abstract: Thermotropic liquid crystalline polymers are produced by the reaction of a polyester made from an aromatic dicarboxylic acid and a diol, one or more hydroxycarboxylic acids, a stoichiometric excess of an aromatic diol, and a carboxylic acid anhydride. Also disclosed are novel liquid crystalline polymers that may be produced by this process. These liquid crystalline polymers are useful as molding resins and shaped articles thereof are produced. In particular, the articles include films, sheets, containers and portions thereof comprising these LCPs.Type: GrantFiled: July 11, 2003Date of Patent: September 12, 2006Assignee: E. I. du Pont de Nemour and CompanyInventors: Michael Robert Samuels, Marion Glen Waggoner, Julius Uradnisheck
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Publication number: 20030055144Abstract: Parts, especially ovenware parts, made from certain liquid crystalline polymers and optionally fillers, reinforcing agents and/or pigments, which have low blistering and/or warpage may be made by addition of small amounts of alkali metal ion to the liquid crystalline polymer and/or certain melt mixing conditions when preparing the composition.Type: ApplicationFiled: September 17, 2002Publication date: March 20, 2003Inventors: Marion Glen Waggoner, Steve Gust Cottis, Michael Robert Samuels
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Patent number: 6492463Abstract: A composition comprising a thermotropic liquid crystalline polymer (LCP) and small quantities of low molecular weight polyethylene (PE) is disclosed. The PP acts as an internal lubricant or mold release, but suprisingly does not significantly increase the flammability of the LCP.Type: GrantFiled: July 7, 1998Date of Patent: December 10, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Marion Glen Waggoner
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Patent number: 6247389Abstract: A polymer cutter with a rotary cutting head in which the cutting edges are on the circumferential periphery of the head, and in which the cutting edges shear rather than slice the polymer is described. The knife blades on the rotary head have a cutting edge angle of greater than 70°. The apparatus is especially useful for cutting thermoplastics and may be used for preparing polymer granules or pellets.Type: GrantFiled: January 7, 2000Date of Patent: June 19, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Michael Robert Samuels, Marion Glen Waggoner
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Patent number: 6022491Abstract: A thermotropic liquid crystalline polymer constituted of repeat units derived from hydroquinone, terephthalic acid, isophthalic acid, 2,6-naphthalene dicarboxylic acid, and 4-hydroxybenzoic acid, all present in defined amounts. Such polymer has excellent physical properties and high temperature stability. It is suitable as a molding resin.Type: GrantFiled: June 25, 1998Date of Patent: February 8, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Michael Robert Samuels, Marion Glen Waggoner
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Patent number: 5710237Abstract: Liquid crystalline polyesters made from hydroquinone, terephthalic acid, 2,6-naphthalene dicarboxylic acid and 4-hydroxybenzoic acid, and having a selected composition range, have melting points of about 350.degree. C. or less, good physical properties, and are readily manufactured. The polymers are useful as molding resins.Type: GrantFiled: May 8, 1995Date of Patent: January 20, 1998Assignee: E. I. Du Pont de Nemours and CompanyInventors: Marion Glen Waggoner, Michael Robert Samuels
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Patent number: 5688895Abstract: Disclosed herein are thermotropic liquid crystalline poly(ester-amides) containing repeat units derived from alipatic diamines and other monomers, such as aromatic diols, aromatic dicarboxylic acids, aromatic hydroxycarboxylic acids, and optionally aliphatic diols. The polymers are particularly useful as films and in multilayer structures as barrier layers because of their relatively low permeability to various compounds.Type: GrantFiled: June 24, 1996Date of Patent: November 18, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Irene Greenwald Plotzker, Joel David Citron, Marion Glen Waggoner
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Patent number: 4056653Abstract: Spherical-shaped particles having an average diameter of 10 to 100 microns and the surface thereof is covered with hemispherical-shaped bumps about 0.1 micron in diameter, the particles being a copolymer of alpha-olefins and alpha, beta-ethylenically unsaturated carboxylic acid having 3 to 8 carbon atoms, the copolymer having up to 90% of the carboxylic acid groups ionized by neutralization with metal ions. The particles form a free-flowing powder useful in preparing clear, protective, shatter-resistant coatings for glass, and protective coatings for metals and other material.Type: GrantFiled: September 24, 1975Date of Patent: November 1, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventors: John Charles Gebhard, Jr., Marion Glen Waggoner, James Lang Webster
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Patent number: 3959539Abstract: Powder coating materials which consist essentially of an ionic copolymer, or a copolymer or terpolymer base resin of the ionic copolymer, and 1 to 20% by weight, based on the weight of copolymer, of a monobasic fatty acid of 10 to 22 carbon atoms, a metal salt of a monobasic fatty acid of 10 to 22 carbon atoms, or mixtures thereof. The materials are useful for coating glass bottles.Type: GrantFiled: November 13, 1974Date of Patent: May 25, 1976Assignee: E. I. Du Pont de Nemours and CompannyInventor: Marion Glen Waggoner
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Patent number: 3933954Abstract: Method whereby spherical-shaped copolymer particles having a rough surface are produced. In a closed shear zone of a shear device under positive pressure water, at least 0.6% by weight of ammonia, and up to 50% by weight of copolymers of alpha-olefins and alpha, beta-ethylenically unsaturated carboxylic acids having from 3 to 8 carbon atoms, and optionally an additional monoethylenically unsaturated monomer, the copolymer having from 0% to 90% of the carboxylic acid groups ionized by neutralization with metal ions, are sheared at a temperature above the melting point but below the thermal degradation point of the copolymer to form a homogeneous aqueous slurry wherein the copolymer particles have an average particle size of less than 100 microns. The slurry is maintained with agitation at a temperature above the copolymer melting point for at least 0.5 minute until substantially all the copolymer particles become spherical.Type: GrantFiled: November 28, 1973Date of Patent: January 20, 1976Assignee: E. I. Du Pont de Nemours and CompanyInventors: John Charles Gebhard, Jr., Marion Glen Waggoner, James Lang Webster