Patents by Inventor XiaoChuan Wang
XiaoChuan Wang 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: 10040928Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: October 27, 2016Date of Patent: August 7, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman
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Patent number: 10035906Abstract: This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Yd) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.869 to about 0.975 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 20% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: October 24, 2016Date of Patent: July 31, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Tieqi Li, XiaoChuan Wang, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman
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Publication number: 20180211618Abstract: A display driver panel device and a method therefor are disclosed. The device includes: an image sensor array consisting of pixel sensor elements arranged in M rows and N columns; and a display driver array consisting of display driver elements arranged in M rows and N columns. Each of the display driver elements corresponds to a respective one of the pixel sensor elements. As such, first display input signals generated by the pixel sensor elements from a received external imaging radiation can be sent to the respective corresponding display driver elements. As a result, the display driver elements respond at the same time, resulting in an increased response speed of the display driver panel device.Type: ApplicationFiled: January 23, 2018Publication date: July 26, 2018Inventor: Xiaochuan WANG
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Patent number: 10023730Abstract: This disclosure relates to manufactured articles containing ethylene interpolymers. Specifically, films, containers and lids comprising at least one layer of an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: October 19, 2016Date of Patent: July 17, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Patrick Lam, Tieqi Li, XiaoChuan Wang, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman
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Patent number: 10023729Abstract: This disclosure relates to films comprising at least one layer of an ethylene interpolymer product. The ethylene interpolymer product comprises a first ethylene interpolymer, a second ethylene interpolymer and optionally a third ethylene interpolymer; wherein the ethylene interpolymer product has ?0.03 terminal vinyl unsaturations per 100 carbon atoms and ?3 parts per million (ppm) of a total catalytic metal; and optionally a Dilution Index, Yd, greater than 0. The disclosed ethylene interpolymer products have a melt index from about 0.4 to about 10 dg/minute, a density from about 0.900 to about 0.940 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 12 and a CDBI50 from about 20% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: April 21, 2016Date of Patent: July 17, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Marcelo Yamane, Tieqi Li, Xiaochuan Wang, Christopher Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman, Stephen John Brown
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Patent number: 10023706Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product and an ethylene polymer, where the ethylene interpolymer product has a Dilution Index (Yd) greater than 0 and improved Environmental Stress Crack Resistance (ESCR). The ethylene interpolymer product has a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: May 31, 2017Date of Patent: July 17, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy, Hamidreza Khakdaman, XiaoChuan Wang, Tieqi Li, Christopher Dobbin, Fazle Sibtain, Kenneth Taylor
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Patent number: 9963529Abstract: This disclosure relates to a continuous solution three reactor polymerization process. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst system are injected into a first and second reactor configured in parallel to one another. A third reactor receives effluent from the first reactor, the second reactor, or a combination of the first and second reactors. Fresh monomer is feed to the third reactor for further polymerization and to give a final polyethylene product.Type: GrantFiled: April 19, 2017Date of Patent: May 8, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Niousha Kazemi, Stephen Brown, Lawrence VanAsseldonk, XiaoChuan Wang, Stephen Salomons, Yves Lacombe
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Publication number: 20180079898Abstract: A polyethylene blend comprises a nucleated polyethylene homopolymer composition and an un-nucleated or nucleated bimodal polyethylene copolymer.Type: ApplicationFiled: September 13, 2017Publication date: March 22, 2018Applicant: NOVA Chemicals (International) S.A.Inventor: XiaoChuan Wang
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Publication number: 20170370135Abstract: A hinged component comprises a polyethylene composition having a density of from 0.940 to 0.965 g/cm3, a melt index of less than 30 g/10 min, a molecular weight distribution Mw/Mn of less than 5.0 and a unimodal profile in a gel permeation chromatograph.Type: ApplicationFiled: June 14, 2017Publication date: December 28, 2017Applicant: NOVA Chemicals (International) S.A.Inventor: XiaoChuan Wang
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Publication number: 20170358265Abstract: A display driver backplane, a display device and a fabrication method thereof are disclosed. The display driver backplane includes: a first semiconductor laminate including pixel driver array consisting of a plurality of pixel driver elements and first peripheral circuit unit; first electrode array formed on second surface of first semiconductor laminate; a second semiconductor laminate containing a second peripheral circuit unit, wherein a first surface of the second semiconductor laminate is bonded to a first surface of first semiconductor laminate; and first vias that are formed within first semiconductor laminate and electrically interconnect first-electrode array and pixel-driver array.Type: ApplicationFiled: June 13, 2017Publication date: December 14, 2017Inventor: Xiaochuan WANG
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Publication number: 20170342176Abstract: A closure comprising a polyethylene copolymer which has a density of from 0.940 to 0.962 g/cm3, a melt index I2 of less 1.5 g/10 min, high levels of unsaturation and low catalyst component residues, has excellent organoleptic properties.Type: ApplicationFiled: May 23, 2017Publication date: November 30, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: XiaoChuan Wang, Mehdi Keshtkar, Renee Laurel Anseeuw, Ian Robert Gibbons, Gilbert Alexander Arnould
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Patent number: 9796823Abstract: Films suitable for shrink film applications are disclosed comprising at least one heterogeneous ethylene interpolymer having a short chain branching distribution profile index, DPISCB, that satisfies the formula: ?1?DPISCB?1. The at least one heterogeneous ethylene interpolymer has a density from about 0.911 g/cm3 to about 0.942 g/cm3, a melt index from about 0.2 dg/min to about 3.5 dg/min and is produced using an in-line Ziegler-Natta catalyst. Additional embodiments include shrink films prepared from blends of at least one heterogeneous ethylene interpolymer and at least one high pressure ethylene polymer. The disclosed shrink films have improved puncture strength and machine direction shrink tunnel shrink force relative to control shrink films of the same composition but the control heterogeneous ethylene interpolymer, produced with a batch Ziegler-Natta catalyst, has a DPISCB greater than 1.0.Type: GrantFiled: July 7, 2016Date of Patent: October 24, 2017Assignee: NOVA Chemicals (International) S.A.Inventors: XiaoChuan Wang, Douglas Walter Checknita, John Leonard Bayley
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Patent number: 9783663Abstract: A dual reactor solution polymerization process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have high dimensional stability, excellent processability as well as good organoleptic properties and reasonable stress cracking resistance. The polyethylene compositions are suitable for compression molding or injection molding applications and are useful, for example, in the manufacture of caps and closures for bottles, and for example, in bottles containing non-pressurized liquids.Type: GrantFiled: June 1, 2016Date of Patent: October 10, 2017Assignee: NOVA Chemicals (International) S.A.Inventor: XiaoChuan Wang
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Patent number: 9783664Abstract: A hinged component comprising a polyethylene composition having a molecular weight distribution Mw/Mn, of from 2.0 to 7.0; a density of at least 0.949 g/cm3; a melt index, I2 of from greater than 10.0 g/10 min to 20.0 g/10 min, a Z-average molecular weight MZ, of less than 300,000; and a melt flow ratio I21/I2, of from 24 to 38; where the hinged component has an average hinge life of more than 4100 cycles.Type: GrantFiled: June 1, 2016Date of Patent: October 10, 2017Assignee: NOVA Chemicals (International) S.A.Inventor: XiaoChuan Wang
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Publication number: 20170267822Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product and an ethylene polymer, where the ethylene interpolymer product has a Dilution Index (Yd) greater than 0 and improved Environmental Stress Crack Resistance (ESCR). The ethylene interpolymer product has a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: ApplicationFiled: May 31, 2017Publication date: September 21, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy, Hamidreza Khakdaman, XiaoChuan Wang, Tieqi Li, Christopher Dobbin, Fazle Sibtain, Kenneth Taylor
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Patent number: 9758653Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability and ESCR properties. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles or containers.Type: GrantFiled: August 19, 2015Date of Patent: September 12, 2017Assignee: NOVA Chemicals (International) S.A.Inventors: XiaoChuan Wang, Stephen Salomons
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Publication number: 20170207764Abstract: A film bulk acoustic resonator (FBAR) and a method of fabricating the FBAR are disclosed. In the method, formation of several mutually overlapped and hence connected sacrificial material layers above and under a resonator sheet facilitates the removal of the sacrificial material layers. Cavities left after the removal overlap at a polygonal area with non-parallel sides. This reduces the likelihood of boundary reflections of transverse parasitic waves causing standing wave resonance in the FBAR, thereby enhancing its performance in parasitic wave crosstalk. Further, according to the invention, the FBAR is enabled to be integrated with CMOS circuitry and hence exhibits higher reliability.Type: ApplicationFiled: December 23, 2016Publication date: July 20, 2017Inventor: Xiaochuan Wang
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Publication number: 20170190889Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, stiffness, and environmental stress crack resistance. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles.Type: ApplicationFiled: March 16, 2017Publication date: July 6, 2017Applicant: NOVA Chemicals (International) S.A.Inventor: XiaoChuan Wang
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Patent number: 9695309Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than ?1.0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms. The ethylene interpolymer products have a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: April 6, 2016Date of Patent: July 4, 2017Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman
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Publication number: 20170166332Abstract: High density (density ?0.950 g/cm3) polyethylene compositions for use in hot fill closures and processes.Type: ApplicationFiled: January 19, 2016Publication date: June 15, 2017Applicant: NOVA Chemicals (International) S.A.Inventor: XiaoChuan Wang