Patents by Inventor Duen-Wu Hua
Duen-Wu Hua 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: 9388299Abstract: Aluminosilicate pigments enriched by zirconium treatment, and methods of making the pigments, are disclosed. Such zirconium-containing aluminosilicate pigments can have a unique combination of small particle size, high surface area, low oil absorption, and neutral pH. These pigments can be used in various paint and coating applications, such as a TiO2 extender, offering improved properties to the finished paint or coating.Type: GrantFiled: April 28, 2015Date of Patent: July 12, 2016Assignee: J.M. Huber CorporationInventor: Duen-Wu Hua
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Publication number: 20160122512Abstract: Aluminosilicate pigments enriched by zirconium treatment, and methods of making the pigments, are disclosed. Such zirconium-containing aluminosilicate pigments can have a unique combination of small particle size, high surface area, low oil absorption, and neutral pH. These pigments can be used in various paint and coating applications, such as a TiO2 extender, offering improved properties to the finished paint or coating.Type: ApplicationFiled: April 28, 2015Publication date: May 5, 2016Inventor: Duen-Wu Hua
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Patent number: 9045616Abstract: Aluminosilicate pigments enriched by zirconium treatment, and methods of making the pigments, are disclosed. Such zirconium-containing aluminosilicate pigments can have a unique combination of small particle size, high surface area, low oil absorption, and neutral pH. These pigments can be used in various paint and coating applications, such as a TiO2 extender, offering improved properties to the finished paint or coating.Type: GrantFiled: October 30, 2014Date of Patent: June 2, 2015Assignee: J.M. Huber CorporationInventor: Duen-Wu Hua
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Patent number: 8596468Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like.Type: GrantFiled: June 27, 2007Date of Patent: December 3, 2013Assignee: J.M. Huber CorporationInventors: Duen-Wu Hua, Gary W. Loock
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Patent number: 7803343Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like.Type: GrantFiled: June 27, 2007Date of Patent: September 28, 2010Assignee: J.M. Huber CorporationInventors: Duen-Wu Hua, Michael C. Withiam, Francis R. W. Godwin, Fitzgerald A. Sinclair
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Patent number: 7628844Abstract: Filtration materials comprising heat-treated metal-doped precipitated silica or silica gel materials with sulfur-containing functional silane surface treatments are provided. Such materials exhibit excellent mercury removal properties from flue gas emissions through the trapping of mercury vapors within a smokestack (or other like site). The metal dopant and the sulfur-containing functional silane components applied to the surface of the target metal-doped gels effectuate the desired mercury reactions to permit capture thereof. In combination, such components permit versatile utilization in either a fixed bed configuration or through a dynamic mercury removal procedure. Methods of using and specific filter apparatuses are also encompassed within this invention.Type: GrantFiled: October 17, 2007Date of Patent: December 8, 2009Assignee: J.M. Huber CorporationInventor: Duen-Wu Hua
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Publication number: 20090297459Abstract: A gel/precipitate silica composite for use in a dentifrice composition has a maximum light transmission of at least 25% within a refractive index range of from about 1.432 to about 1.455; a relative flavor availability as compared to silica sand of at least 50%; a CTAB of less than about 40; and, when incorporated into a dentifrice composition in an amount of 20% by weight, said dentifrice has a RDA (Relative Dentin Abrasion) value of at most 130; a PCR (Pellicle Cleaning Ratio):RDA ratio of from 0.7 to 1.3; and a haze value after 24 hours of less than about 50%.Type: ApplicationFiled: May 20, 2009Publication date: December 3, 2009Inventors: Duen-Wu Hua, Patrick Donald McGill, William C. Fultz
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Publication number: 20090196929Abstract: New methods of treating silica wetcake during precipitated silica materials manufacturing are provided. Such methods permit a significant increase in high solids content processing while simultaneously reducing high viscosity of the resultant particles for transport facilitation. The resultant precipitated silica wetcake is treated with a borate-containing dispersant to impart the necessary low viscosity characteristics thereto. Such a dispersant accords not only such a viscosity result, but will not char or otherwise discolor the silica particles during evaporation of the liquids within the wetcake itself. Furthermore, such a dispersant, if left on the surfaces of such particles, will not deleteriously affect the abrasivity, fluoride compatibility, or other dentifrice properties of the precipitated silica materials themselves. Also encompassed within this invention are the resultant precipitated silica particles exhibiting borate residues and dentifrices including such materials.Type: ApplicationFiled: February 1, 2008Publication date: August 6, 2009Applicant: J.M. HUBER CORPORATIONInventors: Duen-Wu Hua, Michael William Mullahey, JR.
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Patent number: 7553416Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like.Type: GrantFiled: June 27, 2007Date of Patent: June 30, 2009Assignee: J.M. Huber CorporationInventors: Duen-Wu Hua, Michael C. Withiam, Francis R. W. Godwin, Fitzgerald A. Sinclair
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Publication number: 20090101015Abstract: Filtration materials comprising heat-treated metal-doped precipitated silica or silica gel materials with sulfur-containing functional silane surface treatments are provided. Such materials exhibit excellent mercury removal properties from flue gas emissions through the trapping of mercury vapors within a smokestack (or other like site). The metal dopant and the sulfur-containing functional silane components applied to the surface of the target metal-doped gels effectuate the desired mercury reactions to permit capture thereof. In combination, such components permit versatile utilization in either a fixed bed configuration or through a dynamic mercury removal procedure. Methods of using and specific filter apparatuses are also encompassed within this invention.Type: ApplicationFiled: October 17, 2007Publication date: April 23, 2009Inventor: Duen-Wu Hua
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Publication number: 20090071895Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like.Type: ApplicationFiled: June 27, 2007Publication date: March 19, 2009Inventors: Duen-Wu Hua, Michael C. Withiam, Francis R. W. Godwin, Fitzgerald A. Sinclair
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Publication number: 20090004089Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like.Type: ApplicationFiled: June 27, 2007Publication date: January 1, 2009Inventors: Duen-Wu Hua, Michael C. Withiam, Francis R. W. Godwin, Fitzgerald A. Sinclair
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Publication number: 20090001014Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like.Type: ApplicationFiled: June 27, 2007Publication date: January 1, 2009Inventors: Duen-Wu Hua, Gary W. Loock
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Patent number: 7455791Abstract: An aqueous chemical mechanical polishing slurry is provided that comprises precipitated amorphous silica abrasive particles treated with acidic aluminum. Also provided is a method of polishing an electronic component substrate comprising the steps of: a) obtaining an electronic component substrate, the electronic component substrate having an insulating film deposited over it, an interconnection pattern formed in the insulating film, and interconnection material deposited on the insulated film and in the interconnection pattern; and b) polishing the interconnection material until a surface of said insulating film is exposed by using an aqueous chemical mechanical polishing slurry comprising: precipitated amorphous silica abrasive particles treated with acidic aluminum.Type: GrantFiled: December 14, 2004Date of Patent: November 25, 2008Assignee: J.M. Huber CorporationInventors: Duen-Wu Hua, Frands Nielsen
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Publication number: 20070258922Abstract: Unique pigments that exhibit excellent light diffusion when applied to a person's skin within an appropriate medium as well as acceptable feel during such application are provided. To be most efficacious for this application, such pigments should meet specific criteria being a proper particle size, having irregular structure (i.e. not smooth), and a non-spherical shape. In such a manner, the subject pigments effectuate the desired ability to diffuse light when applied to skin (in a film of acceptable cosmetic composition) such that optical blurring takes place thereby preventing the appearance of wrinkles. The shape, particle size and irregularity of the pigments are necessary to permit maximum light diffusion effects. The particle size and particle size range also necessarily provides a feel that is sufficiently soft for skin applications. Specific types of pigments, as well as cosmetic formulations including such novel materials are also encompassed within this invention.Type: ApplicationFiled: November 1, 2004Publication date: November 8, 2007Inventors: Mark Wozniak, Duen-Wu Hua, Karl Gallis
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Publication number: 20070253987Abstract: Unique pigments that exhibit excellent light diffusion when applied to a person's skin within an appropriate medium as well as acceptable feel during such application are provided. To be most efficacious for this application, such pigments should meet specific criteria being a proper particle size, having irregular structure (i.e. not smooth), and a non-spherical shape. In such a manner, the subject pigments effectuate the desired ability to diffuse light when applied to skin (in a film of acceptable cosmetic composition) such that optical blurring takes place thereby preventing the appearance of wrinkles. The shape, particle size and irregularity of the pigments are necessary to permit maximum light diffusion effects. The particle size and particle size range also necessarily provides a feel that is sufficiently soft for skin applications. Specific types of pigments, as well as cosmetic formulations including such novel materials are also encompassed within this invention.Type: ApplicationFiled: November 1, 2004Publication date: November 1, 2007Inventors: Mark Wozniak, Duen-Wu Hua, Karl Gallis
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Publication number: 20070154412Abstract: Unique dentifrices comprising unique abrasive biogenic silica materials are provided. Such compositions exhibit excellent abrasive characteristics, either alone, or in combination with other types of abrasives. In such combinations (with precipitated silica materials, as one example), simultaneously high pellicle film cleaning properties and moderate dentin abrasion levels are possible in order to accord the user a dentifrice that effectively cleans tooth surfaces without detrimentally abrading such surfaces, even at low levels of such biogenic silica additives. Such biogenic silica particles thus surprisingly accord beneficial properties within dentifrice compositions. Encompassed within this invention is the method of utilizing such biogenic silica products within dentifrices, either as the majority abrasive component, or in combination with any other type of commonly used abrasive material.Type: ApplicationFiled: December 30, 2005Publication date: July 5, 2007Inventors: Nolan Lee Phillips, Duen-Wu Hua, William C. Fultz, Patrick Donald McGill
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Publication number: 20070154413Abstract: Unique dentifrices comprising unique abrasive biogenic silica materials are provided. Such compositions exhibit excellent abrasive characteristics, either alone, or in combination with other types of abrasives. In such combinations (with precipitated silica materials, as one example), simultaneously high pellicle film cleaning properties and moderate dentin abrasion levels are possible in order to accord the user a dentifrice that effectively cleans tooth surfaces without detrimentally abrading such surfaces, even at low levels of such biogenic silica additives. Such biogenic silica particles thus surprisingly accord beneficial properties within dentifrice compositions. Encompassed within this invention is the method of utilizing such biogenic silica products within dentifrices, either as the majority abrasive component, or in combination with any other type of commonly used abrasive material.Type: ApplicationFiled: December 30, 2005Publication date: July 5, 2007Inventors: Nolan Lee Phillips, Duen-Wu Hua, William C. Fultz, Patrick Donald McGill
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Publication number: 20070154602Abstract: The treatment of cooking oils and fats with specific types of calcium silicate-based materials to prolong the useful life of such oils and fats within restaurant settings is provided. More particularly, such an invention encompasses the utilization of calcium-based aluminosilicate materials to filter such oils and/or fats or the incorporation of calcium silicate with or within previously utilized cooking oil filter materials (such as magnesium silicate) for the same purpose. Such calcium silicate-based materials and treatments therewith aid to remove greater amounts of free fatty acids after such oils and/or fats have been utilized to fry foodstuffs, as well as reduce the amount of additional oil and/or fat potentially necessary to bring the used oils and/or fats up to a level of permitted further utilization within a restaurant environment.Type: ApplicationFiled: December 30, 2005Publication date: July 5, 2007Inventors: Michael C. Withiam, Nolan Lee Phillips, Duen-Wu Hua, William C. Fultz, Parick Donald McGill
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Patent number: 6913634Abstract: An aqueous chemical mechanical polishing slurry is provided that comprises precipitated amorphous silica abrasive particles treated with acidic aluminum. Also provided is a method of polishing an electronic component substrate comprising the steps of: a) obtaining an electronic component substrate, the electronic component substrate having an insulating film deposited over it, an interconnection pattern formed in the insulating film, and interconnection material deposited on the insulated film and in the interconnection pattern; and b) polishing the interconnection material until a surface of said insulating film is exposed by using an aqueous chemical mechanical polishing slurry comprising: precipitated amorphous silica abrasive particles treated with acidic aluminum.Type: GrantFiled: February 14, 2003Date of Patent: July 5, 2005Assignee: J. M. Huber CorporationInventors: Duen-Wu Hua, Frands Nielsen