Patents by Inventor Salvatore D'Uva
Salvatore D'Uva 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: 20240043632Abstract: Provided herein are compositions of polyolefin masterbatches containing liquid phosphite antioxidants intended for use as antioxidizing preparations for polyolefins. The polyolefin masterbatches herein exhibit good shelf stability including reduced blooming of the liquid phosphite and reduced consumption of the active phosphite during storage due to hydrolysis or other undesirable reactions.Type: ApplicationFiled: December 21, 2021Publication date: February 8, 2024Inventors: John Zachariah CHARLTON, Paul Marco GIAMMARIA, Salvatore D'UVA, Zhehui LIU, Ahmed KHALED AH SAAD, Kjeld Wiebe MEEREBOER
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Patent number: 9193838Abstract: High concentration pelletized additive concentration or polymer stabilization agent or blends, and their preparations, used in various polymerization processes to enhance stability.Type: GrantFiled: September 13, 2007Date of Patent: November 24, 2015Assignee: Ingenia Polymers, Inc.Inventors: Salvatore D'Uva, Zach Charlton, John Lefas
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Patent number: 8492473Abstract: A purging compound for purging an extruder of polyamides or other polar thermoplastic resins for transitioning to the extrusion of a non-polar thermoplastic resin, includes a non-polar base polymer compounded with an ethylene-methacrylate copolymer, up to 15% of a mineral, and about 1% of a suitable antioxidant.Type: GrantFiled: March 23, 2011Date of Patent: July 23, 2013Assignee: Ingenia Polymers Corp.Inventors: Sushanta Dhar Roy, Viraj Triokekar, Salvatore D'Uva, Ed Hindy
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Patent number: 8361361Abstract: Ultra-fine sodium bicarbonate powder (mean particle size less than 5 microns) is produced by the mixing and reaction under agitation at control temperatures of solutions of ammonium bicarbonate and sodium chloride. Precipitated sodium bicarbonate is separated by filtration as a slurry which is dried to produce ultra-fine sodium bicarbonate. Ultra-fine sodium bicarbonate produced by this method also exhibits a narrow particle size distribution which is advantageous in blowing agents for thermoplastic resins, to produce a foamed resin with small cells of a narrow size distribution.Type: GrantFiled: June 21, 2010Date of Patent: January 29, 2013Assignee: Ingenia Polymers Corp.Inventors: Art Tinson, Salvatore D'Uva, Jianzhong Hu, John Lefas
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Publication number: 20120245269Abstract: A purging compound for purging an extruder of polyamides or other polar thermoplastic resins for transitioning to the extrusion of a non-polar thermoplastic resin, includes a non-polar base polymer compounded with an ethylene-methacrylate copolymer, up to 15% of a mineral, and about 1% of a suitable antioxidant.Type: ApplicationFiled: March 23, 2011Publication date: September 27, 2012Applicant: Ingenia Polymers Corp.Inventors: Sushanta Dhar Roy, Viraj Triokekar, Salvatore D'Uva, Ed Hindy
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Publication number: 20110277669Abstract: A method is described for preparing liquid concentrates of additives for incorporation in polymers, particularly polymers prepared in solution or slurry phase polymerization media. Additive concentrates according to the invention are characterized by a finer dispersion than would result from the direct addition of particulate or granular additives to the same liquid solvent.Type: ApplicationFiled: July 27, 2011Publication date: November 17, 2011Applicant: INGENIA POLYMERS CORP.Inventors: Zach Charlton, Larry Spino, George Kalantzakis, John Lefas, Salvatore D'uva
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Patent number: 8021585Abstract: A method is described for preparing liquid concentrates of additives for incorporation in polymers, particularly polymers prepared in solution or slurry phase polymerization media. Additive concentrates according to the invention are characterized by a finer dispersion than would result from the direct addition of particulate or granular additives to the same liquid solvent.Type: GrantFiled: April 20, 2007Date of Patent: September 20, 2011Assignee: Ingenia Polymers Corp.Inventors: Zach Charlton, Larry Spino, George Kalantzakis, John Lefas, Salvatore D'Uva
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Publication number: 20110112207Abstract: Ultra-fine sodium bicarbonate powder (mean particle size less than 5 microns) is produced by the mixing and reaction under agitation at control temperatures of solutions of ammonium bicarbonate and sodium chloride. Precipitated sodium bicarbonate is separated by filtration as a slurry which is dried to produce ultra-fine sodium bicarbonate. Ultra-fine sodium bicarbonate produced by this method also exhibits a narrow particle size distribution which is advantageous in blowing agents for thermoplastic resins, to produce a foamed resin with small cells of a narrow size distribution.Type: ApplicationFiled: June 21, 2010Publication date: May 12, 2011Applicant: INGENIA POLYMERS CORP.Inventors: Art Tinson, Salvatore D'Uva, Jianzhong Hu, John Lefas
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Patent number: 7906561Abstract: The invention pertains to a process for producing a cross-linked polyolefin foam in a continuous process using standard processing equipment without using a moisture cross-linking step after processing. In this method, a vinyl functional silane compound is melt grafted onto a low density polyethylene in the presence of a free radical generator. The resulting silane grafted polyethylene resin is mixed and melted with a blowing agent in a continuous process in the presence of water to form a vinyl functional silane foam.Type: GrantFiled: December 3, 2007Date of Patent: March 15, 2011Assignee: Ingenia Polymers, Inc.Inventors: Jianzhong Hu, Salvatore D'Uva, Arthur Tinson
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Publication number: 20100152341Abstract: Compacted additive blends, or polymer stabilization agent blends, can be added during the post-polymerization process to enhance the processability performance of polymers. The addition of certain compaction aids, such as high melting or non-melting metallic silicates and others, increases the resistance to friability of the compacted additive pellets. These compaction aids are non-migratory during the compaction process and after introduction into the polymer resin and thus have no deleterious effects. The additive blend can contain a variety of suitable additives in addition to the compaction aids.Type: ApplicationFiled: December 9, 2009Publication date: June 17, 2010Applicant: Ingenia Polymers Inc.Inventors: Ananda M. Chatterjee, Tania M. LaFrance, Salvatore D'Uva
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Publication number: 20080281009Abstract: The invention pertains to a process for producing a cross-linked polyolefin foam in a continuous process using standard processing equipment without using a moisture cross-linking step after processing. In this method, a vinyl functional silane compound is melt grafted onto a low density polyethylene in the presence of a free radical generator. The resulting silane grafted polyethylene resin is mixed and melted with a blowing agent in a continuous process in the presence of water to form a vinyl functional silane foam.Type: ApplicationFiled: December 3, 2007Publication date: November 13, 2008Applicant: Ingenia Polymers, Inc.Inventors: Jianzhong Hu, Salvatore D'Uva, Arthur Tinson
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Publication number: 20080281010Abstract: Foamed film compositions using chemical blowing agents and produced by continuous blown film extrusion or cast film extrusion of polymer foams. The composition has small cell size and is suitable for the production of thin film articles. The articles may be monolayer or multilayered structures.Type: ApplicationFiled: March 28, 2008Publication date: November 13, 2008Applicant: Ingenia Polymers Inc.Inventors: John Lefas, Salvatore D'Uva, Arthur Tinson
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Publication number: 20080076857Abstract: High concentration pelletized additive concentration or polymer stabilization agent or blends, and their preparations, used in various polymerization processes to enhance stability.Type: ApplicationFiled: September 13, 2007Publication date: March 27, 2008Applicant: Ingenia Polymers Inc.Inventors: Salvatore D'Uva, Zach Charlton, John Lefas
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Publication number: 20080029741Abstract: A method is described for preparing liquid concentrates of additives for incorporation in polymers, particularly polymers prepared in solution or slurry phase polymerization media. Additive concentrates according to the invention are characterized by a finer dispersion than would result from the direct addition of particulate or granular additives to the same liquid solvent.Type: ApplicationFiled: April 20, 2007Publication date: February 7, 2008Applicant: Ingenia Polymers Corp.Inventors: Zach Charlton, Larry Spino, George Kalantzakis, John Lefas, Salvatore D'Uva
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Publication number: 20070286790Abstract: Ultra-fine sodium bicarbonate powder (mean particle size less than 5 microns) is produced by the mixing and reaction under agitation at control temperatures of solutions of ammonium bicarbonate and sodium chloride. Precipitated sodium bicarbonate is separated by filtration as a slurry which is dried to produce ultra-fine sodium bicarbonate. Ultra-fine sodium bicarbonate produced by this method also exhibits a narrow particle size distribution which is advantageous in blowing agents for thermoplastic resins, to produce a foamed resin with small cells of a narrow size distribution.Type: ApplicationFiled: March 26, 2007Publication date: December 13, 2007Inventors: Art Tinson, Salvatore D'Uva, Jianzhong Hu, John Lefas
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Patent number: 6906137Abstract: A process aid masterbatch comprising a) 0.05 to 25 weight percent fluoropolymer; b) 0.2 to 10 weight percent of an organic soap selected from the group consisting of carboxylic acids having from 6 to 34 carbon atoms; salts thereof; hydrocarbon sulfonates having from 6 to 34 carbon atoms; and salts thereof; c) at least 5 weight percent mineral particulate; and d) a non-fluorinated melt-processable polymer improves the extrusion processability of non-fluorinated melt-processable polymers.Type: GrantFiled: January 21, 2004Date of Patent: June 14, 2005Assignees: DuPont Dow Elastomers LLC, Ingenia Polymers CorporationInventors: Steven Richard Oriani, Salvatore D'Uva, Viraj Pramod Trilokekar
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Publication number: 20040192818Abstract: A process aid masterbatch comprising a) 0.05 to 25 weight percent fluoropolymer; b) 0.2 to 10 weight percent of an organic soap selected from the group consisting of carboxylic acids having from 6 to 34 carbon atoms; salts thereof; hydrocarbon sulfonates having from 6 to 34 carbon atoms; and salts thereof; c) at least 5 weight percent mineral particulate; and d) a non-fluorinated melt-processable polymer improves the extrusion processability of non-fluorinated melt-processable polymers.Type: ApplicationFiled: January 21, 2004Publication date: September 30, 2004Inventors: Steven Richard Oriani, Salvatore D'Uva, Viraj Pramod Trilokekar
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Patent number: 6103153Abstract: Compositions and processing conditions are disclosed for the production by rotomolding of polypropylene foams, hither to satisfactorily produced only by injection molding and extrusion molding. Rheological properties of the polypropylene resin, processing conditions and choice of composition of the chemical blowing agent were found to play important roles in obtaining high quality polypropylene foam structures. High strength fine-cell polypropylene foams could in particular be formed by first melt compounding a suitable chemical blowing agent with the resin under conditions which allow for homogeneous mixing without appreciable decomposition of the blowing agent.Type: GrantFiled: June 2, 1999Date of Patent: August 15, 2000Inventors: Chul B. Park, Guobin Liu, Fangyi Liu, Remon Pop-Iliev, Salvatore D'Uva, Benjamin Zhang
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Patent number: 5928584Abstract: Novel molding compositions consisting essentially of a mixture of a skin-forming component and a foam core-foaming component physically dry-blended together. The skin-forming component comprises two distinct phases blended together, a high zero-shear viscosity material and a low zero-shear viscosity material. The foam core-forming component preferably comprises a foamable polymeric material including a suitable blowing agent. In a preferred embodiment, the three materials are selected from suitable homopolymers and copolymers of ethylene.Type: GrantFiled: February 13, 1997Date of Patent: July 27, 1999Assignee: Wedtech (USA) Inc.Inventors: Clifford C. Lee, Donald T. Beuke, Andrew R. Feder, John Lefas, Salvatore D'Uva