Patents by Inventor David VANZIN
David VANZIN 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: 20240092720Abstract: An anti-fouling composition, and uses thereof in the industrial preparation of ethylenically unsaturated monomers comprising at least one heteroatom, such as acrylic monomers are disclosed.Type: ApplicationFiled: February 4, 2021Publication date: March 21, 2024Applicant: SPECIALTY OPERATIONS FRANCEInventors: Jing Jiang, David Vanzin, Rodolphe Sapey-Triomphe, Shujing Cheng, Lars Fischer
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Publication number: 20220411542Abstract: The invention relates to a composition for the immediate termination of a free-radical polymerization, the use thereof for the stabilization of free-radically polymerizable monomers against free-radical polymerization and a method for the immediate termination of free-radical polymerizations.Type: ApplicationFiled: November 6, 2019Publication date: December 29, 2022Applicant: RHODIA OPERATIONSInventors: Jing Jiang, Ding Wang, David Vanzin
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Publication number: 20220048218Abstract: Stabilized compositions having an organic material to be stabilized and a resin masterbatch system provided as closed end pellets are provided herein, along with processes for producing stabilized articles.Type: ApplicationFiled: March 31, 2021Publication date: February 17, 2022Applicant: CYTEC INDUSTRIES INC.Inventors: Joseph Kozakiewicz, Jerry Mon Hei ENG, Ram B. GUPTA, David VANZIN, Shailesh MAJMUDAR
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Publication number: 20210387151Abstract: The present invention relates to new lightly colored prills of hydroquinone. More particularly, the invention provides a new method for preparing said lightly colored prills of hydroquinone. The invention also relates to said prills of hydroquinone obtained by said new method.Type: ApplicationFiled: December 3, 2019Publication date: December 16, 2021Inventors: Rodolphe SAPEY-TRIOMPHE, Lars FISCHER, David VANZIN
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Patent number: 11046631Abstract: The invention relates to a novel solid form of diphenol compound. A process for the preparation of diphenol prills having a spherical shape is disclosed. Said process comprising providing a molten composition comprising from 50 to 100 wt. % of a diphenol compound or a mixture of at least two diphenol compounds, and less than 0.1 wt. % of water; forcing said molten composition through at least one droplet generator means to form droplets; and cooling said droplets to form solid diphenol prills. The diphenol prills obtainable by said process are also one subject-matter of the invention.Type: GrantFiled: February 21, 2018Date of Patent: June 29, 2021Assignee: RHODIA OPERATIONSInventors: Cédric Humblot, David Vanzin, Lars Fischer, Rodolphe Sapey-Triomphe
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Patent number: 10974417Abstract: Resin masterbatch compositions are provided as closed end pellets having a core including at least one additive and an outer layer comprising a polymer encapsulating the core, in which the thickness of the outer layer if from 0.001 mm to 1 cm. A stabilized composition is prepared from an organic material to be stabilized and the resin masterbatch composition. A process for producing the resin masterbatch composition includes co-extruding in tubular form a core material encapsulated by an outer layer, wherein the core material comprises at least one additive, and the outer layer comprises a polymer, to form a filled tube; passing the filled tube into a sealing device that cuts the filled tube into multiple discrete segments seals and simultaneously seals each end of each discrete segment, thereby forming closed end pellets; and cooling the closed end pellets.Type: GrantFiled: July 29, 2016Date of Patent: April 13, 2021Assignee: Cytec Industries Inc.Inventors: Dinand Tijhuis, Erwin Tijhuis, Joseph Kozakiewicz, Jerry Mon Hei Eng, Ram B. Gupta, David Vanzin, Shailesh Majmudar
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Patent number: 10793766Abstract: Sulfosuccinate surfactant compounds blended in binary and ternary combinations to yield synergistic sulfosuccinate surfactant systems and use of the same in enhanced oil recovery and hydraulic fracturing applications.Type: GrantFiled: February 17, 2017Date of Patent: October 6, 2020Assignee: Cytec Industries Inc.Inventors: David Vanzin, Shailesh Majmudar, Nimal Jayasuriya, Azhar M. Awan
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Patent number: 10655054Abstract: This invention relates to foam-forming surfactant compositions having at least two surfactants whereof at least one is a sulfosuccinamate, and at least one is a sulfosuccinate, and optionally including, a solvent. Methods of recovering oil or gas by generating a foam, feeding the foam into a subterranean oil- or gas-bearing geological formation, and collecting mineral oil or natural gas driven by the foam in a production well, wherein the foam is generated by intimate mixing of one or more foam-forming surfactant compositions described herein with a gas in a foam generator, or by introduction of at least one of water and gases, together or intermittently or in alternating sequence, slugs of a gas which may be in a supercritical or non-supercritical state, and of water, wherein the foam-forming surfactant composition(s) can be admixed to the water or to the gas if the gas is in a supercritical state or be introduced separately as solution into the geological formation, are also provided.Type: GrantFiled: May 30, 2016Date of Patent: May 19, 2020Assignee: Cytec Industries Inc.Inventors: Azhar M. Awan, David Vanzin, Dongcheel Lee, Eunyong Kim
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Publication number: 20200031749Abstract: The invention relates to a novel solid form of diphenol compound. A process for the preparation of diphenol prills having a spherical shape is disclosed. Said process comprising providing a molten composition comprising from 50 to 100 wt. % of a diphenol compound or a mixture of at least two diphenol compounds, and less than 0.1 wt. % of water; forcing said molten composition through at least one droplet generator means to form droplets; and cooling said droplets to form solid diphenol prills. The diphenol prills obtainable by said process are also one subject-matter of the invention.Type: ApplicationFiled: February 21, 2018Publication date: January 30, 2020Inventors: Cédric HUMBLOT, David VANZIN, Lars FISCHER, Rodolphe SAPEY-TRIOMPHE
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Publication number: 20180222087Abstract: Resin masterbatch compositions are provided as closed end pellets having a core including at least one additive and an outer layer comprising a polymer encapsulating the core, in which the thickness of the outer layer if from 0.001 mm to 1 cm. A stabilized composition is prepared from an organic material to be stabilized and the resin masterbatch composition. A process for producing the resin masterbatch composition includes co-extruding in tubular form a core material encapsulated by an outer layer, wherein the core material comprises at least one additive, and the outer layer comprises a polymer, to form a filled tube; passing the filled tube into a sealing device that cuts the filled tube into multiple discrete segments seals and simultaneously seals each end of each discrete segment, thereby forming closed end pellets; and cooling the closed end pellets.Type: ApplicationFiled: July 29, 2016Publication date: August 9, 2018Inventors: Dinand TIJHUIS, Erwin TIJHUIS, Joseph KOZAKIEWICZ, Jerry Mon Hei ENG, Ram B. GUPTA, David VANZIN, Shailesh MAJMUDAR
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Publication number: 20180051201Abstract: Sulfosuccinate surfactant compounds blended in binary and ternary combinations to yield synergistic sulfosuccinate surfactant systems and use of the same in enhanced oil recovery and hydraulic fracturing applications.Type: ApplicationFiled: February 17, 2017Publication date: February 22, 2018Applicant: Cytec Industries Inc.Inventors: David VANZIN, Shailesh MAJMUDAR, Nimal JAYASURIYA
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Publication number: 20170051195Abstract: The invention relates to a surfactant mixture having at least two different sulfosuccinates, and an additional surfactant selected from the group consisting of alkoxylated aliphatic alcohols, and to a method of treating a hydrocarbon oil containing formation by injection of solutions including mixtures of these surfactants.Type: ApplicationFiled: August 18, 2016Publication date: February 23, 2017Applicant: Cytec Industries Inc.Inventors: David VANZIN, Shailesh MAJMUDAR, Nimal JAYASURIYA
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Publication number: 20160347990Abstract: This invention relates to foam-forming surfactant compositions having at least two surfactants whereof at least one is a sulfosuccinamate, and at least one is a sulfosuccinate, and optionally including, a solvent. Methods of recovering oil or gas by generating a foam, feeding the foam into a subterranean oil- or gas-bearing geological formation, and collecting mineral oil or natural gas driven by the foam in a production well, wherein the foam is generated by intimate mixing of one or more foam-forming surfactant compositions described herein with a gas in a foam generator, or by introduction of at least one of water and gases, together or intermittently or in alternating sequence, slugs of a gas which may be in a supercritical or non-supercritical state, and of water, wherein the foam-forming surfactant composition(s) can be admixed to the water or to the gas if the gas is in a supercritical state or be introduced separately as solution into the geological formation, are also provided.Type: ApplicationFiled: May 30, 2016Publication date: December 1, 2016Inventors: David VANZIN, Dongcheel LEE, Eunyong KIM
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Patent number: 6485750Abstract: Phenothiazine and its derivatives products are provided with a minimal level of fines or dust as a result of forming such products in prill form. The prills are generally spherical. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. The prill product achieves improved handling, flowability and dissolution times, while minimizing the generation of phenothiazine fines and dust, and the problems associated with worker exposure, irritation and sensitization to such fines and dust.Type: GrantFiled: August 7, 2001Date of Patent: November 26, 2002Assignee: Avecia, Inc.Inventor: David A. Vanzin
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Publication number: 20020102310Abstract: Phenothiazine and its derivatives products are provided with a minimal level of fines or dust as a result of forming such products in prill form. The prills are generally spherical. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. The prill product achieves improved handling, flowability and dissolution times, while minimizing the generation of phenothiazine fines and dust, and the problems associated with worker exposure, irritation and sensitization to such fines and dust.Type: ApplicationFiled: August 7, 2001Publication date: August 1, 2002Applicant: Avecia, Inc.Inventor: David A. Vanzin
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Patent number: 6284279Abstract: Phenothiazine and its derivatives products are provided with a minimal level of fines or dust as a result of forming such products in prill form. The prills are generally spherical. Also provided is a method for reducing the level of powder in phenothiazine product which includes forming the phenothiazine product in prill form such that the prills have a generally spherical shape. The prill product achieves improved handling, flowability and dissolution times, while minimizing the generation of phenothiazine fines and dust, and the problems associated with worker exposure, irritation and sensitization to such fines and dust.Type: GrantFiled: December 3, 1999Date of Patent: September 4, 2001Assignee: Avecia, Inc.Inventor: David A. Vanzin