Patents by Inventor Thoi H. Ho
Thoi H. Ho 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: 10150858Abstract: Blended compositions that can include one or more thermoplastic polymers and one or more organic fillers and methods for making and using same. The blended composition can have a Notched Izod Impact Strength of at least 20 J/m to about 600 J/m, measured according to ASTM D256-10, and a melt index of about 1 g/10 min to about 100 g/10 min, measured according to ASTM D1238-13, procedure B. The thermoplastic copolymer can include a blend of a polypropylene homopolymer and a copolymer of propylene and a comonomer. The comonomer can include ethylene, a C4 to C20 olefin, or any mixture thereof. The copolymer of propylene and the comonomer can include about 0.5 wt % to about 40 wt % of the comonomer. The blended composition can include about 5 wt % to about 30 wt % of the organic filler based on the combined weight of the thermoplastic copolymer and the organic filler.Type: GrantFiled: February 11, 2015Date of Patent: December 11, 2018Assignee: Flint Hills Resources, LPInventors: Thoi H. Ho, Pierre Donaldson, Billy R. Bodiford, Steve Hooker, Mark Wolverton
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Publication number: 20160347945Abstract: Blended compositions that can include one or more thermoplastic polymers and one or more organic fillers and methods for making and using same. The blended composition can have a Notched Izod Impact Strength of at least 20 J/m to about 600 J/m, measured according to ASTM D256-10, and a melt index of about 1 g/10 min to about 100 g/10 min, measured according to ASTM D1238-13, procedure B. The thermoplastic copolymer can include a blend of a polypropylene homopolymer and a copolymer of propylene and a comonomer. The comonomer can include ethylene, a C4 to C20 olefin, or any mixture thereof. The copolymer of propylene and the comonomer can include about 0.5 wt % to about 40 wt % of the comonomer. The blended composition can include about 5 wt % to about 30 wt % of the organic filler based on the combined weight of the thermoplastic copolymer and the organic filler.Type: ApplicationFiled: February 11, 2015Publication date: December 1, 2016Applicant: Flint Hills Resources, LPInventors: Thoi H. Ho, Pierre Donaldson, Billy R. Bodiford, Steve Hooker, Mark Wolverton
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Patent number: 8791205Abstract: The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CMv) less than ?0.Type: GrantFiled: December 17, 2012Date of Patent: July 29, 2014Assignee: Dow Global Technologies LLCInventors: William J. Michie, Jr., Dane Chang, Lonnie G. Hazlitt, Stephanie M. Whited, Michael A. Kinnan, Anthony C. Neubauer, Thoi H. Ho
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Publication number: 20140004287Abstract: The invention provides a composition comprising the following: A) an ethylene-based polymer; B) a compound selected from Formula 1, as shown herein, wherein R1 and R2 are each independently selected from a C1-C20 alkyl group; X is selected from Cl, Br, I, F, OH, NH2, NHR? or NR?R?, where R? and R? are each independently a C1-C6 alkyl; n is from 1 to 10; and m is from 10 to 30; and wherein this compound is present in an amount greater than, or equal to, 500 ppm, based on the total weight of the composition; C) a compound selected from Formula 2, as shown herein, wherein R1, R2 and R3 are each independently selected N from a C1-C20 alkyl group; R4, R5, R6, R7, R8 and R9 are each independently selected from a C1-C20 alkyl group; X1, X2 and X3 are each independently selected from Cl, Br, I, F, OH, NH2, NHR? or NR?R?, where R? and R? are each independently a C1-C6 alkyl; n is from 1 to 6; m is from 1 to 6; and o is from 1 to 6; and wherein the weight ratio of Component C to Component B (C/B) is greater than 1.Type: ApplicationFiled: March 14, 2012Publication date: January 2, 2014Applicant: DOW GLOBEL TECHNOLOGIES LLCInventors: Carl F. Baker, Thoi H. Ho
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Patent number: 8609779Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: GrantFiled: November 21, 2012Date of Patent: December 17, 2013Assignee: Dow Global Technologies LLCInventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
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Patent number: 8426531Abstract: The present invention relates to an improved process for online measurement of monomer concentration, specifically bisphenol A, in an interfacial polycarbonate manufacturing process. Wherein the measurement is obtained by vibrational spectroscopy for the purpose of improving process control, specifically, controlling the carbonate polymer molecular weight.Type: GrantFiled: February 24, 2010Date of Patent: April 23, 2013Assignee: Styron Europe GmbHInventors: Jean P. Chauvel, Jr., John O. Osby, Wenzel P. Bartlett, Serena K. Stephenson, John S. Hanson, Jeffery S. Bradley, Walter D. Leatherwood, Rajesh P. Paradkar, Thoi H. Ho
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Patent number: 8344068Abstract: The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CM?) less than ?0.Type: GrantFiled: October 19, 2007Date of Patent: January 1, 2013Assignee: Dow Global Technologies LLCInventors: William J. Michie, Jr., Dane Chang, Lonnie G. Hazlitt, Stephanie M. Whited, Michael A. Kinnan, Anthony C. Neubauer, Thoi H. Ho
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Patent number: 8318864Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: GrantFiled: February 21, 2011Date of Patent: November 27, 2012Assignee: Dow Global Technologies LLCInventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
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Patent number: 8211982Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: GrantFiled: February 21, 2011Date of Patent: July 3, 2012Assignee: Dow Global Technologies LLCInventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
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Patent number: 8163226Abstract: Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.Type: GrantFiled: May 26, 2010Date of Patent: April 24, 2012Assignee: Dow Global Technologies LLCInventors: Thoi H. Ho, Detlef Schramm, Pak-Meng Cham, Kalyan Sehanobish
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Publication number: 20120041158Abstract: The present invention relates to an improved process for online measurement of monomer concentration, specifically bisphenol A, in an interfacial polycarbonate manufacturing process. Wherein the measurement is obtained by vibrational spectroscopy for the purpose of improving process control, specifically, controlling the carbonate polymer molecular weight.Type: ApplicationFiled: February 24, 2010Publication date: February 16, 2012Inventors: Jean Chauvel, JR., John O. Osby, Wenzel P. Bartlett, Serena K. Stephenson, John S. Hanson, Jeffery S. Bradley, Walter D. Leatherwood, Rajesh P. Paradkar, Thoi H. Ho
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Patent number: 8063126Abstract: An olefine polymer composition comprises a stabilizing amount of a metal deactivator comprising a polymeric hydrazine derivative. The deactivator is of formula (I), in which at least one of R1 and R2 comprise a polymeric radical that includes a substituted or unsubstituted aromatic radical, provided that R1 and R2 are not both of formula (II). The olefin polymers include polyethylene and polypropylene.Type: GrantFiled: March 17, 2008Date of Patent: November 22, 2011Assignee: Dow Global Technologies LLCInventors: Pascal E. R. E. J. Lakeman, Thoi H. Ho, Ronald Wevers
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Publication number: 20110152437Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: ApplicationFiled: February 21, 2011Publication date: June 23, 2011Inventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
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Publication number: 20110144240Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: ApplicationFiled: February 21, 2011Publication date: June 16, 2011Inventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
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Patent number: 7955539Abstract: A reversible, heat-set covered fiber is described, the covered fiber comprising: A. A core comprising an elastic fiber comprising a substantially crosslinked, temperature-stable, olefin polymer, and B. A cover comprising an inelastic fiber. The fiber is heat-set by a method comprising: (a) Stretching the covered fiber by applying a stretching force to the covered fiber; (b) Heating the stretched covered fiber of (a) to a temperature in excess of the crystalline melting point of the olefin polymer for a period of time sufficient to at least partially melt the olefin polymer; (c) Cooling the stretched and heated covered fiber of (b) to a temperature below the crystalline melting point of the olefin polymer for a period of time sufficient to solidify the polymer; and (d) Removing the stretching force from the covered fiber.Type: GrantFiled: March 11, 2003Date of Patent: June 7, 2011Assignee: Dow Global Technologies LLCInventors: Rajen M. Patel, Rona L Reid, Antonio Batistini, Selim Bensason, Thoi H. Ho
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Patent number: 7897689Abstract: The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.Type: GrantFiled: March 15, 2006Date of Patent: March 1, 2011Assignee: Dow Global Technologies Inc.Inventors: William J. Harris, John D. Weaver, Brian W. Walther, Stephen F. Hahn, Yunwa W. Cheung, Pankaj Gupta, Thoi H. Ho, Kenneth N. Reichek, Selim Yalvac, Teresa P. Karjala, Benjamin R. Rozenblat, Cynthia L. Rickey
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Publication number: 20100233403Abstract: Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.Type: ApplicationFiled: May 26, 2010Publication date: September 16, 2010Applicant: Dow Global Technologies Inc.Inventors: Thoi H. Ho, Detlef Schramm, Pak-Meng Cham, Kalyan Sehanobish
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Patent number: 7744972Abstract: Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.Type: GrantFiled: December 3, 2004Date of Patent: June 29, 2010Assignee: Dow Global Technologies Inc.Inventors: Thoi H. Ho, Detlef Schramm, Pak-Meng Cham, Kalyan Sehanobish
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Patent number: 7727286Abstract: Durable stretch fabrics are made and processed from one or more crosslinked, heat-resistant olefin elastic fibers, e.g., a substantially linear, homogeneously branched ethylene polymer. The fabrics can be made by any process, e.g., weaving, knitting, etc., and from any combination of crosslinked, heat-resistant olefin elastic and inelastic (“hard”) fibers, e.g., cotton and wool. These fabrics exhibit excellent chemical, e.g., chlorine, resistance and durability, e.g., they retain their shape and feel (“hand”) over repeated exposure to processing conditions, e.g., stone-washing, dye-stripping, PET-dyeing and the like, and service conditions, e.g., washing, drying, etc.Type: GrantFiled: August 5, 2009Date of Patent: June 1, 2010Assignee: Dow Global Technologies Inc.Inventors: Rona L. Reid, Thoi H. Ho, Selim Bensason, Rajen M. Patel, Antonio Batistini
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Patent number: 7727627Abstract: Fibers having improved resistance to moisture at elevated temperatures comprise at least two elastic polymers, one polymer heat-settable and the other polymer heat-resistant, the heat-resistant polymer comprising at least a portion of the exterior surface of the fiber. The fibers typically have a bicomponent and/or a biconstituent core/sheath morphology. Typically, the core comprises an elastic thermoplastic urethane, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer.Type: GrantFiled: September 25, 2006Date of Patent: June 1, 2010Assignee: Dow Global Technologies Inc.Inventors: Ashish Sen, John Klier, Rajen M. Patel, Hongyu Chen, Thoi H. Ho