Patents Assigned to PMC ORGANOMETALLIX, INC.
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Patent number: 12129358Abstract: The present invention relates to stabilizer composition for halogen-containing polymer. It has recently been found that tin-based thermal stabilizers with a bridging alkyl group between two tin centers are effective stabilizers while having effectively double the molecular weight of the corresponding non-alkyl bridged stabilizer. It is expected that ongoing experimentation will confirm that the alkyl bridged stabilizers have much lower volatility which leads to greater retention of the stabilizer in the finished article.Type: GrantFiled: February 24, 2021Date of Patent: October 29, 2024Assignee: PMC Organometallix, Inc.Inventors: Kevin John Ross, Gene Kelly Norris
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Publication number: 20240254320Abstract: The invention relates to stabilized chlorinated polyvinyl chloride (CPVC) polymer formulations, and the stabilizers used therein. The stabilization is achieved through the use of a sulfide containing organotin species in conjunction with co-stabilizers and organic extenders which provide increased thermal stability relative to traditional organotin stabilizers.Type: ApplicationFiled: January 30, 2024Publication date: August 1, 2024Applicant: PMC Organometallix, Inc.Inventors: Kevin John ROSS, Gene Kelly NORRIS, Robert J SMITH
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Patent number: 12012500Abstract: A novel Low Free 2-MercaptoEthanol Ester has been used to prepare Alkyl Tin Reverse Ester Stabilizers as well as used to enhance the thermal performance of those Alkyl Tin Reverse Ester Stabilizers or Alkyl Tin Thioglycolate Stabilizers or Alkyl Tin Mercaptides for PVC applications where odor during PVC compounding, processing, or of the final PVC article has prevented widespread use of Alkyl Tin Reverse Ester Stabilizers.Type: GrantFiled: December 28, 2020Date of Patent: June 18, 2024Assignee: PMC Organometallix, Inc.Inventors: Kevin John Ross, Gene Kelly Norris, Jeremy Dunlap
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Publication number: 20220267265Abstract: A novel Low Free 2-MercaptoEthanol Ester has been used to prepare Alkyl Tin Reverse Ester Stabilizers as well as used to enhance the thermal performance of those Alkyl Tin Reverse Ester Stabilizers or Alkyl Tin Thioglycolate Stabilizers or Alkyl Tin Mercaptides for PVC applications where odor during PVC compounding, processing, or of the final PVC article has prevented widespread use of Alkyl Tin Reverse Ester Stabilizers. Additional enhancements have been found in cellular PVC production wherein stabilizers including the novel Low Free 2-MercaptoEthanol Ester result in lower density foams, and allow for lower melt density, which improves injection molding cycle times.Type: ApplicationFiled: July 24, 2020Publication date: August 25, 2022Applicant: PMC ORGANOMETALLIX, INC.Inventors: Kevin John ROSS, Gene Kelly NORRIS, Jeremy DUNLAP
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Publication number: 20210261754Abstract: The present invention relates to stabilizer composition for halogen-containing polymer. It has recently been found that tin-based thermal stabilizers with a bridging alkyl group between two tin centers are effective stabilizers while having effectively double the molecular weight of the corresponding non-alkyl bridged stabilizer. It is expected that ongoing experimentation will confirm that the alkyl bridged stabilizers have much lower volatility which leads to greater retention of the stabilizer in the finished article.Type: ApplicationFiled: February 24, 2021Publication date: August 26, 2021Applicant: PMC Organometallix, Inc.Inventors: Kevn John Ross, Gene Kelly Norris
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Publication number: 20210188768Abstract: A novel Low Free 2-MercaptoEthanol Ester has been used to prepare Alkyl Tin Reverse Ester Stabilizers as well as used to enhance the thermal performance of those Alkyl Tin Reverse Ester Stabilizers or Alkyl Tin Thioglycolate Stabilizers or Alkyl Tin Mercaptides for PVC applications where odor during PVC compounding, processing, or of the final PVC article has prevented widespread use of Alkyl Tin Reverse Ester Stabilizers.Type: ApplicationFiled: December 28, 2020Publication date: June 24, 2021Applicant: PMC ORGANOMETALLIX, INC.Inventors: Kevin John ROSS, Gene Kelly NORRIS, Jeremy DUNLAP
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Publication number: 20200071269Abstract: A novel Low Free 2-MercaptoEthanol Ester has been used to prepare Alkyl Tin Reverse Ester Stabilizers as well as used to enhance the thermal performance of those Alkyl Tin Reverse Ester Stabilizers or Alkyl Tin Thioglycolate Stabilizers or Alkyl Tin Mercaptides for PVC applications where odor during PVC compounding, processing, or of the final PVC article has prevented widespread use of Alkyl Tin Reverse Ester Stabilizers.Type: ApplicationFiled: August 28, 2019Publication date: March 5, 2020Applicant: PMC ORGANOMETALLIX, INC.Inventors: Kevin John ROSS, Gene Kelly NORRIS, Jeremy DUNLAP
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Publication number: 20200010638Abstract: The present invention relates to the thermal stabilization of halogen containing polymer compositions. More particularly the invention relates to a tin stabilizer composition for chlorine containing polymers, and more specifically a composition comprising a mono alkyltin compound as major compound of the tin stabilizer composition and a co-stabilizer. The present invention relates as well to the use of a mono alkyl tin compound as major compound of the tin stabilizer and a co-stabilizer as heat stabilizers for processing chlorine containing polymer composition.Type: ApplicationFiled: July 12, 2019Publication date: January 9, 2020Applicant: PMC ORGANOMETALLIX, INC.Inventors: Anne Chabrol, Isabelle Tartarin, Berth Jan Deelman
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Patent number: 10351691Abstract: The present invention relates to the thermal stabilization of halogen containing polymer compositions. More particularly the invention relates to a tin stabilizer composition for chlorine containing polymers, and more specifically a composition comprising a mono alkyltin compound as major compound of the tin stabilizer composition and a co-stabilizer. The present invention relates as well to the use of a mono alkyl tin compound as major compound of the tin stabilizer and a co-stabilizer as heat stabilizers for processing chlorine containing polymer composition.Type: GrantFiled: April 13, 2012Date of Patent: July 16, 2019Assignee: PMC ORGANOMETALLIX, INC.Inventors: Anne Chabrol, Isabelle Tartarin, Berth Jan Deelman
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Publication number: 20170260368Abstract: A liquid organotin heat stabilizer for clear, opaque and/or colored calendered rigid Polyvinyl Chloride (PVC) comprising octyltin mercaptide and methyltin mercaptide. Octyltin mercaptide is used to develop good early color in a clear, opaque or colored calendered rigid PVC film application. Methyltin mercaptide is used to improve the long term heat stability (reduced burning) of the clear, opaque or colored rigid calendered PVC films. Ranges from 50% to 75% octyltin mercaptide, and from 50% to 25% methyltin mercaptide have application. Preferred ranges are 60% to 64% octyltin mercaptide and 40% to 36% methyltin mercaptide. Most preferred is 62% octyltin mercaptide and 38% methyltin mercaptide.Type: ApplicationFiled: January 30, 2017Publication date: September 14, 2017Applicant: PMC Organometallix, Inc.Inventors: Keith Mesch, Anthony Dymek
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Patent number: 9670331Abstract: The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of a tin based blowing agent activator(s). The tin based activator also reduces the activation temperature of a chemical blowing agent, allowing for more optimal evolution of gas during plastic processing. Dibutyl tin oxide or tin maleates are superior activators of vinyl chloride polymer blowing agents.Type: GrantFiled: September 16, 2009Date of Patent: June 6, 2017Assignee: PMC ORGANOMETALLIX, INC.Inventor: Paul R. Lavallee
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Publication number: 20140322469Abstract: The present invention relates to the thermal stabilization of halogen containing polymer compositions. More particularly the invention relates to a tin stabilizer composition for chlorine containing polymers, and more specifically a composition comprising a mono alkyltin compound as major compound of the tin stabilizer composition and a co-stabilizer. The present invention relates as well to the use of a mono alkyl tin compound as major compound of the tin stabilizer and a co-stabilizer as heat stabilizers for processing chlorine containing polymer composition.Type: ApplicationFiled: April 13, 2012Publication date: October 30, 2014Applicant: PMC ORGANOMETALLIX, INC.Inventors: Anne Chabrol, Isabelle Tartarin, Berth Jan Deelman
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Patent number: 8674142Abstract: The invention relates to the use of polycyclic aromatic hydrocarbons (PAHs) such as naphthalene and its alkyl, aryl, or heteroatom substituted analogs, that act as catalysts in the presence of an alkali metal (Li, K, Na) for the reduction of electron-deficient and electron-rich triaryl phosphines to their corresponding alkali metal diaryl phosphide salts. The process is also useful for the catalysis of triaryl phosphine chalcogen adducts such as the sulfides, oxides, and selenides, diaryl(halo)phosphines, triaryl phosphine-borane adducts, and tetra-aryl bis(phosphines) that can also be reduced to their corresponding alkali metal diaryl phosphide salts. The invention also relates to small molecule PAHs and polymer tethered PAHs naphthenics.Type: GrantFiled: March 11, 2010Date of Patent: March 18, 2014Assignee: PMC Organometallix, Inc.Inventors: Nicholas J. Rodak, Gary S. Silverman, Stephen W. Carson
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Patent number: 8633330Abstract: The invention provides a process for producing monoalkyltin trihalide or a mixture of monoalkyltin trihalide and dialkyltin dihalide by: (a) contacting dialkyltin dihalide with an alkylation agent and, optionally, tin tetrahalide, to form a tetraalkyltin mixture comprising tetraalkyltin, trialkyltin halide, and dialkyltin dihalide; (b) reacting the tetraalkyltin mixture with tin tetrahalide to form a monoalkyltin trihalide mixture comprising monoalkyltin trihalide, dialkyltin dihalide and optionally triaklyltin halide; (c) processing the monoalkyltin trihalide mixture to separately recover the monoalkyltin trihalide and a dialkyltin dihalide stream optionally containing trialkyltin halide; and (d) recycling at least a portion of the dialkyltin dihalide stream recovered in step (c) to the contacting step (a).Type: GrantFiled: July 1, 2011Date of Patent: January 21, 2014Assignee: PMC Organometallix, Inc.Inventors: George J. Merz, III, Michelle F. Walasavage, Berth Jan Deelman, Maarten D. K. Boele, Andrew R. Goddard, William D. Honnick
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Publication number: 20130281725Abstract: The invention provides a process for producing monoalkyltin trihalide or a mixture of monoalkyltin trihalide and dialkyltin dihalide by: (a) contacting dialkyltin dihalide with an alkylation agent and, optionally, tin tetrahalide, to form a tetraalkyltin mixture comprising tetraalkyltin, trialkyltin halide, and dialkyltin dihalide; (b) reacting the tetraalkyltin mixture with tin tetrahalide to form a monoalkyltin trihalide mixture comprising monoalkyltin trihalide, dialkyltin dihalide and optionally triaklyltin halide; (c) processing the monoalkyltin trihalide mixture to separately recover the monoalkyltin trihalide and a dialkyltin dihalide stream optionally containing trialkyltin halide; and (d) recycling at least a portion of the dialkyltin dihalide stream recovered in step (c) to the contacting step (a).Type: ApplicationFiled: July 1, 2011Publication date: October 24, 2013Applicant: PMC ORGANOMETALLIX, INC.Inventors: George J. Merz, III, Michelle F. Walasavage, Berth Jan Deelman, Maarten D.K. Boele, Andrew R. Goddard, William D. Honnick