Patents by Inventor Mary Anne Leugers
Mary Anne Leugers 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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Publication number: 20200247041Abstract: A method of selective sintering additive manufacturing comprises employing a powder comprising composite particulates comprising a first thermoplastic polymer and a second thermoplastic polymer interspersed with each other. In a particular embodiment, the first thermoplastic polymer and second thermoplastic polymer have differing absorbance of the irradiation used to sinter the particles when performing the additive manufacturing method. The first and second thermoplastic polymer may be continuously intertwined in within the particles or one of the polymers may be a discontinuously dispersed in a continuous matrix of the other polymer.Type: ApplicationFiled: October 18, 2016Publication date: August 6, 2020Inventors: Joshua M. Katzenstein, Robert S. Moglia, Mary Anne Leugers, Aleksander J. Pyzik, Scott T. Matteucci, Sharon Allen, Daniel L. Dermody, Roland Bayer
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Patent number: 10596726Abstract: An additive elastomeric manufactured part having an elongation at break of at least 50% may be made by a method comprising the following. A material comprising a prepolymer and filler is first dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.Type: GrantFiled: October 13, 2015Date of Patent: March 24, 2020Assignee: Dow Global Technologies LLCInventors: Aleksander J. Pyzik, Scott T. Matteucci, Gary L. Jialanella, Daniel L. Dermody, Mary Anne Leugers
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Patent number: 10513095Abstract: A shrink film comprising a polyethylene-based film having a top surface, a bottom surface, and comprising one or more layers, wherein at least one layer of the polyethylene-based film comprises a low density polyethylene having a density of from 0.917 g/cc to 0.935 g/cc and melt index, I2, of from 0.1 g/10 min to 5 g/10 min, a linear low density polyethylene having a density of from 0.900 g/cc to 0.965 g/cc and melt index, I2, of from 0.05 g/10 min to 15 g/10 min, or combinations thereof, and optionally, a medium density polyethylene, a high density polyethylene, or combinations thereof, and a coating layer disposed on the top surface of the polyethylene-based film, wherein the coating layer comprises an adhesive and a near-infrared absorbent material.Type: GrantFiled: October 21, 2015Date of Patent: December 24, 2019Assignee: Dow Global Technologies LLCInventors: Mauricio E. Leano, Paul R. Elowe, Mary Anne Leugers, Debkumar Bhattacharjee, Todd O. Pangburn, Bruce Peterson, Matthew Toyli
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Publication number: 20190329452Abstract: An additive elastomeric manufactured part having an elongation at break of at least 50% may be made by a method comprising the following. A material comprising a prepolymer and filler is first dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Inventors: Aleksander J Pyzik, Scott T. Matteucci, Gary L. Jialanella, Daniel L. Dermody, Mary Anne Leugers
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Patent number: 10100168Abstract: The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles.Type: GrantFiled: January 9, 2015Date of Patent: October 16, 2018Assignee: Dow Global Technologies LLCInventors: Roland Bayer, Scott T. Matteucci, Aleksander J. Pyzik, Sharon Allen, Mary Anne Leugers, Daniel L. Dermody, Robert S. Moglia
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Patent number: 9995626Abstract: A confocal microscope, operable to focus on any of a plurality of portions of a sample, is optically coupled to a light source and to a spectrograph module. When the confocal microscope focuses on a particular portion of the sample, the confocal microscope directs incident light from the light source to the particular portion and directs responsive light from the particular portion to the spectrograph module. The spectrograph module can be operated using a first diffraction grating having a first line density to obtain a Raman spectrum of the responsive light from the particular portion of the sample. The spectrograph module can also be operated using a second diffraction grating having a second line density that is less than the first line density to obtain a fluorescence or phosphorescence spectrum of the responsive light from the particular portion of the sample.Type: GrantFiled: October 16, 2015Date of Patent: June 12, 2018Assignee: Dow Global Technologies LLCInventor: Mary Anne Leugers
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Publication number: 20170341353Abstract: A shrink film comprising a polyethylene-based film having a top surface, a bottom surface, and comprising one or more layers, wherein at least one layer of the polyethylene-based film comprises a low density polyethylene having a density of from 0.917 g/cc to 0.935 g/cc and melt index, I2, of from 0.1 g/10 min to 5 g/10 min, a linear low density polyethylene having a density of from 0.900 g/cc to 0.965 g/cc and melt index, I2, of from 0.05 g/10 min to 15 g/10 min, or combinations thereof, and optionally, a medium density polyethylene, a high density polyethylene, or combinations thereof, and a coating layer disposed on the top surface of the polyethylene-based film, wherein the coating layer comprises an adhesive and a material that absorbs radiation in the near-infrared, visible, and ultraviolet spectral wavelength ranges.Type: ApplicationFiled: October 21, 2015Publication date: November 30, 2017Inventors: Mauricio E. Leano, Paul R. Elowe, Mary Anne Leugers, Debkumar Bhattacharjee, Todd O. Pangburn, Bruce Peterson
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Publication number: 20170335086Abstract: A polyethylene-based polymer composition suitable for use in a shrink film, the polyethylene-based polymer composition comprising a low density polyethylene having a density of from 0.917 g/cc to 0.935 g/cc and melt index, I2, of from 0.1 g/10 min to 5 g/10 min, a linear low density polyethylene having a density of from 0.900 g/cc to 0.965 g/cc and melt index, I2, of from 0.05 g/10 min to 15 g/10 min, or combinations thereof, a near-infrared absorbent material, and optionally, a medium density polyethylene, a high density polyethylene, or combinations thereof.Type: ApplicationFiled: October 21, 2015Publication date: November 23, 2017Inventors: Mauricio E. Leano, Paul R. Elowe, Mary Anne Leugers, Bruce Peterson, Matthew Toyli
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Publication number: 20170260375Abstract: A polyethylene-based polymer composition suitable for use in a shrink film, the polyethylene-based polymer composition comprising a low density polyethylene having a density of from 0.917 g/cc to 0.935 g/cc and melt index, I2, of from 0.1 g/10 min to 5 g/10 min, a linear low density polyethylene having a density of from 0.900 g/cc to 0.965 g/cc and melt index, I2, of from 0.05 g/10 min to 15 g/10 min, or combinations thereof, a material that absorbs radiation in the near-infrared, visible, and ultraviolet spectral wavelength ranges, and optionally, a medium density polyethylene, a high density polyethylene, or combinations thereof.Type: ApplicationFiled: October 21, 2015Publication date: September 14, 2017Applicants: Dow Global Technologies LLC, Dow Global Technologies LLCInventors: Mauricio E. Leano, Paul R. Elowe, Mary Anne Leugers, Kumar Nanjundiah, Bruce Peterson
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Publication number: 20170259541Abstract: A shrink film comprising a polyethylene-based film having a top surface, a bottom surface, and comprising one or more layers, wherein at least one layer of the polyethylene-based film comprises a low density polyethylene having a density of from 0.917 g/cc to 0.935 g/cc and melt index, I2, of from 0.1 g/10 min to 5 g/10 min, a linear low density polyethylene having a density of from 0.900 g/cc to 0.965 g/cc and melt index, I2, of from 0.05 g/10 min to 15 g/10 min, or combinations thereof, and optionally, a medium density polyethylene, a high density polyethylene, or combinations thereof, and a coating layer disposed on the top surface of the polyethylene-based film, wherein the coating layer comprises an adhesive and a near-infrared absorbent material.Type: ApplicationFiled: October 21, 2015Publication date: September 14, 2017Inventors: Mauricio E. Leano, Paul R. Elowe, Mary Anne Leugers, Debkumar Bhattacharjee, Todd O. Pangburn, Bruce Peterson, Matthew Toyli
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Publication number: 20170246802Abstract: An additive elastomeric manufactured part having an elongation at break of at least 50% may be made by a method comprising the following. A material comprising a prepolymer and filler is first dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.Type: ApplicationFiled: October 13, 2015Publication date: August 31, 2017Inventors: Aleksander J. PYZIK, Scott T. MATTEUCCI, Gary L. JIALANELLA, Daniel L. DERMODY, Mary Anne LEUGERS
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Publication number: 20160333165Abstract: The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles.Type: ApplicationFiled: January 9, 2015Publication date: November 17, 2016Inventors: Roland Bayer, Scott T. Matteucci, Aleksander J. Pyzik, Sharon Allen, Mary Anne Leugers, Daniel L. Dermody, Robert S. Moglia
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Patent number: 9315725Abstract: A method of manufacturing an Eu2+ activated inorganic red phosphor is provided, wherein the phosphor exhibits an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P1; wherein the first Gaussian emission curve peak, P1, has a peak 1 height, HP1, a peak 1 peak wavelength, P?P1, and a peak 1 area, AP1; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P2; wherein the second Gaussian emission curve peak, P2, has a peak 2 height, HP2, a peak 2 peak wavelength, P?P2, a peak 2 full width at half max, FWHMP2, and a peak 2 area, AP2; wherein P?P1<P?P2; and, wherein the peak 2 full width at half max, FWHMP2, is minimized.Type: GrantFiled: August 28, 2014Date of Patent: April 19, 2016Assignees: Lightscape Materials, Inc., Dow Global Technologies LLCInventors: Michael Dennis Romanelli, Alan C. Thomas, Mary Anne Leugers, Yongchi Tian
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Publication number: 20160060515Abstract: A method of manufacturing an Eu2+ activated inorganic red phosphor is provided, wherein the phosphor exhibits an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P1; wherein the first Gaussian emission curve peak, P1, has a peak 1 height, HP1, a peak 1 peak wavelength, P?P1, and a peak 1 area, AP1; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P2; wherein the second Gaussian emission curve peak, P2, has a peak 2 height, HP2, a peak 2 peak wavelength, P?P2, a peak 2 full width at half max, FWHMP2, and a peak 2 area, AP2; wherein P?P1<P?P2; and, wherein the peak 2 full width at half max, FWHMP2, is minimized.Type: ApplicationFiled: August 28, 2014Publication date: March 3, 2016Inventors: Michael Dennis Romanelli, Alan C. Thomas, Mary Anne Leugers, Yongchi Tian
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Patent number: 9200198Abstract: A phosphor is provided, comprising an inorganic luminescent compound represented by formula (1) having an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P1; wherein the first Gaussian emission curve peak, P1, has a peak 1 height, HP1, a peak 1 peak wavelength, P?P1, and a peak 1 area, AP1; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P2; wherein the second Gaussian emission curve peak, P2 has a peak 2 height, HP2, a peak 2 peak wavelength, P?P2, a peak 2 full width at half max, FWHMP2, and a peak 2 area, AP2; wherein P?P1<P?P2; and, wherein, at least one of, the peak 2 height, HP2, the peak 2 full width at half max, FWHMP2, and, the peak 2 area, AP2, is minimized.Type: GrantFiled: August 28, 2014Date of Patent: December 1, 2015Assignees: Lightscape Materials, Inc., Dow Global Technologies LLCInventors: Michael Dennis Romanelli, Mary Anne Leugers, Alan C. Thomas, Yongchi Tian
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Patent number: 9199851Abstract: The present invention relates to a nitrate salt-based process for preparing a graphite oxide. The invention nitrate salt-based process employs starting materials comprising a sulfuric acid, an inorganic nitrate salt, an amount of water, a first amount of chlorate salt, and a graphite.Type: GrantFiled: February 4, 2014Date of Patent: December 1, 2015Inventors: Shu T. Chen, Michael S. Paquette, Mary Anne Leugers
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Patent number: 9200199Abstract: A red phosphor is provided, comprising an inorganic luminescent compound represented by formula (1) having an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P1; wherein the first Gaussian emission curve peak, P1, has a peak 1 height, HP1, a peak 1 peak wavelength, P?P1, and a peak 1 area, AP1; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P2; wherein the second Gaussian emission curve peak, P2, has a peak 2 height, HP2, a peak 2 peak wavelength, P?P2, a peak 2 full width at half max, FWHMP2, and a peak 2 area, AP2; wherein P?P1<P?P2; and, wherein the peak 2 full width at half max, FWHMP2, is minimized.Type: GrantFiled: August 28, 2014Date of Patent: December 1, 2015Assignees: Lightscape Materials, Inc., Dow Global Technologies LLCInventors: Michael Dennis Romanelli, Alan C. Thomas, Mary Anne Leugers, Yongchi Tian
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Patent number: 9103966Abstract: Plastic optical fibers or plastic optical fiber cores with good high temperature resistance to optical attenuation loss are prepared from a cyclic block copolymer characterized by a: A. Weight ratio of hydrogenated conjugated diene polymer block to hydrogenated vinyl aromatic polymer block of 35:65 to 10:90; B. Number average molecular weight (Mn) of from 40,000 to 150,000, grams per mole (g/mol); and C. Hydrogenation level such that each hydrogenated vinyl aromatic polymer block and each hydrogenated conjugated diene polymer block has a hydrogenation level of at least 95 percent.Type: GrantFiled: November 3, 2010Date of Patent: August 11, 2015Assignee: Dow Global Technologies LLCInventors: Thomas S. Lin, Anny Flory, Dirk B. Zinkweg, Jeffrey M. Cogen, Mary Anne Leugers, Weijun Zhou
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Publication number: 20140154164Abstract: The present invention relates to a nitrate salt-based process for preparing a graphite oxide. The invention nitrate salt-based process employs starting materials comprising a sulfuric acid, an inorganic nitrate salt, an amount of water, a first amount of chlorate salt, and a graphite.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Shu T. Chen, Michael S. Paquette, Mary Anne Leugers
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Publication number: 20120243842Abstract: Plastic optical fibers or plastic optical fiber cores with good high temperature resistance to optical attenuation loss are prepared from a cyclic block copolymer characterized by a: A. Weight ratio of hydrogenated conjugated diene polymer block to hydrogenated vinyl aromatic polymer block of 35:65 to 10:90; B. Number average molecular weight (Mn) of from 40,000 to 150,000, grams per mole (g/mol); and C. Hydrogenation level such that each hydrogenated vinyl aromatic polymer block and each hydrogenated conjugated diene polymer block has a hydrogenation level of at least 95 percent.Type: ApplicationFiled: November 3, 2010Publication date: September 27, 2012Inventors: Thomas S. Lin, Anny Flory, Dirk B. Zinkweg, Jeffrey M. Cogen, Mary Anne Leugers, Weijun Zhou