Patents by Inventor Robert J. Kostelnik
Robert J. Kostelnik 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: 20130149536Abstract: A particle of titanium dioxide treated with a polysiloxane is disclosed. One or more silicon atoms of the polysiloxane is substituted with an alkylene group terminating with a silyl group containing three substituents selected from the group consisting of hydroxy, halo, alkoxy, acetoxy, and mixtures thereof. These treated particles are blended with organic polymers to form a polyethylene polymer matrix having dispersed therein at least 55 wt % polysiloxane modified titanium dioxide particles.Type: ApplicationFiled: February 7, 2013Publication date: June 13, 2013Inventors: Robert J Kostelnik, Christopher J. Drury, Charles A. Wheddon
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Patent number: 8394873Abstract: A particle of titanium dioxide treated with a polysiloxane is disclosed. One or more silicon atoms of the polysiloxane is substituted with an alkylene group terminating with a silyl group containing three substituents selected from the group consisting of hydroxy, halo, alkoxy, acetoxy, and mixtures thereof. These treated particles are blended with organic polymers to form a polyethylene polymer matrix having dispersed therein at least 55 wt % polysiloxane modified titanium dioxide particles.Type: GrantFiled: December 2, 2011Date of Patent: March 12, 2013Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Robert J. Kostelnik, Christopher J. Drury, Charles A. Wheddon
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Publication number: 20120077933Abstract: A particle of titanium dioxide treated with a polysiloxane is disclosed. One or more silicon atoms of the polysiloxane is substituted with an alkylene group terminating with a silyl group containing three substituents selected from the group consisting of hydroxy, halo, alkoxy, acetoxy, and mixtures thereof. These treated particles are blended with organic polymers to form a polyethylene polymer matrix having dispersed therein at least 55 wt % polysiloxane modified titanium dioxide particles.Type: ApplicationFiled: December 2, 2011Publication date: March 29, 2012Inventors: Robert J. Kostelnik, Christopher J. Drury, Charles A. Wheddon
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Patent number: 8088853Abstract: A particle of titanium dioxide treated with a polysiloxane is disclosed. One or more silicon atoms of the polysiloxane are substituted with an alkylene group that is terminated with a silyl group containing three substituents selected from the group consisting of hydroxy, halo, alkoxy, acetoxy, and mixtures thereof. These treated particles are blended with organic polymers.Type: GrantFiled: December 21, 2006Date of Patent: January 3, 2012Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Robert J. Kostelnik, Christopher J. Drury, Charles A. Wheddon
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Publication number: 20080152914Abstract: A particle of titanium dioxide treated with a polysiloxane is disclosed. One or more silicon atoms of the polysiloxane are substituted with an alkylene group that is terminated with a silyl group containing three substituents selected from the group consisting of hydroxy, halo, alkoxy, acetoxy, and mixtures thereof. These treated particles are blended with organic polymers.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Inventors: Robert J. Kostelnik, Christopher J. Drury, Charles A. Wheddon
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Patent number: 7259195Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-phosphoric acids and/or their salts, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: GrantFiled: January 16, 2004Date of Patent: August 21, 2007Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Patent number: 6825251Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-acid phosphate molecules, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: GrantFiled: August 13, 2003Date of Patent: November 30, 2004Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Publication number: 20040147637Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-phosphoric acids and/or their salts, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: ApplicationFiled: January 16, 2004Publication date: July 29, 2004Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Patent number: 6765041Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-acid phosphate molecules, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: GrantFiled: November 27, 2000Date of Patent: July 20, 2004Assignee: Millenium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Patent number: 6713543Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-phosphoric acids and/or their salts, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: GrantFiled: November 26, 2001Date of Patent: March 30, 2004Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Publication number: 20040048951Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-acid phosphate molecules, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: ApplicationFiled: August 13, 2003Publication date: March 11, 2004Applicant: Millennium Inorganic Chemicals, Inc.Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Patent number: 6620234Abstract: The present invention provides a treatment method for rendering inorganic oxide particles, such as TiO2 pigment, hydrophobic by predispersing a suitably reactive organohalosilane into an aqueous media, using intensive mixing means (such as a rotor stator emulsifier or inline static mixer) to form a reactive dispersion. When this dispersion is combined with inorganic oxide particles, such as TiO2 pigment, under sufficient agitation, a hydrophobic inorganic oxide can be formed. The oxides formed by the present invention have good mechanical properties, such as dispersibility in nonpolar substances (i.e., plastics), and they do not degrade physical properties of the pigmented nonpolar substance, such as lacing resistance of thermoplastics.Type: GrantFiled: November 10, 2000Date of Patent: September 16, 2003Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Robert J. Kostelnik, Leon Weber, Modasser El-Shoulbary
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Patent number: 6558464Abstract: The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is disclosed which comprises the steps of a) dry milling the anatase titanium dioxide pigment, preferably by pressure rolling, and b) mixing the dry milled pigment with water in the presence of an acrylic acid dispersant.Type: GrantFiled: February 7, 2001Date of Patent: May 6, 2003Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Robert J. Kostelnik, Fu-chu Wen
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Publication number: 20020099126Abstract: A unique treatment for pigments is provided. This treatment, which uses certain organo-phosphoric acids and/or their salts, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices.Type: ApplicationFiled: November 26, 2001Publication date: July 25, 2002Inventors: Modasser El-Shoubary, Robert J. Kostelnik
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Publication number: 20010007231Abstract: The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is disclosed which comprises the steps of a) dry milling the anatase titanium dioxide pigment, preferably by pressure rolling, and b) mixing the dry milled pigment with water in the presence of an acrylic acid dispersant.Type: ApplicationFiled: February 7, 2001Publication date: July 12, 2001Inventors: Robert J. Kostelnik, Fu-chu Wen
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Patent number: 6214106Abstract: The present invention provides a process for the production of hydrophobic inorganic oxide products which comprises reacting the inorganic oxide particles with organohalosilanes, preferably organochlorosilanes, to produce hydrophobic organosilane coated inorganic oxides. It is preferred that the organohalosilane compounds be reacted with the inorganic oxide particles in an aqueous slurry and subjected to intense mixing. The inorganic oxide pigments prepared by the processes of this invention have essentially quantitative retention of the organosilanes and contain no adsorbed aldehydes on their surface. The by-products produced in the preferred embodiments of the invention are innocuous salts, which are environmentally safe and readily disposable.Type: GrantFiled: October 28, 1998Date of Patent: April 10, 2001Assignee: Millenium Inorganic Chemicals, Inc.Inventors: Leon Weber, Robert J. Kostelnik, Charles Wheddon
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Patent number: 6197104Abstract: The present invention discloses high solids slurries of anatase titanium dioxide pigment comprising greater than about 75% by weight of anatase TiO2 pigment dispersed in water. A process for producing the slurries of the present invention is disclosed which comprises the steps of a) dry milling the anatase titanium dioxide pigment, preferably by pressure rolling, and b) mixing the dry milled pigment with water in the presence of an acrylic acid dispersant.Type: GrantFiled: May 4, 1998Date of Patent: March 6, 2001Assignee: Millennium Inorganic Chemicals, Inc.Inventors: Robert J. Kostelnik, Fu-chu Wen
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Patent number: 5746819Abstract: The present invention discloses high solids slurries of sulfate process, anatase titanium dioxide pigment. The improvements of these slurries over those of the prior art are improved slurry stability, tolerance to calcium and magnesium ions, foaming tendencies and reduced tendency to flocculate. The slurries of the present invention are comprised of at least 65% by weight of anatase TiO.sub.Type: GrantFiled: November 14, 1995Date of Patent: May 5, 1998Assignee: SCM Chemicals, Inc.Inventors: Robert J. Kostelnik, Fu-Chu Wen
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Patent number: 5653794Abstract: The present invention provides a process for the production of hydrophobic inorganic oxide products which comprises reacting the inorganic oxide particles with organohalosilanes, preferably organochlorosilanes, to produce hydrophobic organosilane coated inorganic oxides. It is preferred that the organohalosilane compounds be reacted with the inorganic oxide particles in an aqueous slurry. The inorganic oxide pigments prepared by the processes of this invention have essentially quantitative retention of the organosilanes and contain no adsorbed aldehydes on their surface. The by-products produced in the preferred embodiments of the invention are innocuous salts, which are environmentally safe and readily disposable.Type: GrantFiled: December 1, 1995Date of Patent: August 5, 1997Assignee: SCM Chemicals, Inc.Inventors: Leon Weber, Robert J. Kostelnik, Charles Wheddon
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Patent number: 4845178Abstract: The hydrocarbon fluid friction reducing properties of homopolymers of alpha-monoolefins having 6 to 30 carbon atoms or copolymers of two or more alpha-monoolefins having 2 to about 30 carbon atoms is improved by polymerizing the monomers in the liquid state by means of a titanium halide catalyst and a two-component activator system comprised of a dialkylaluminum halide compound and a dialkylaluminum alkoxide compound.Type: GrantFiled: July 13, 1987Date of Patent: July 4, 1989Assignee: Pony Industries, Inc.Inventors: Donald E. Hostetler, Robert J. Kostelnik, Zung-Jung Shanti In