Patents by Inventor Gregory S. Copeland
Gregory S. Copeland 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: 11959196Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI ?50% and/or an initial thermal decomposition temperature in air of ?555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.Type: GrantFiled: June 27, 2016Date of Patent: April 16, 2024Assignee: PBI Performance Products, Inc.Inventors: Brian P. Shiels, Gregory S. Copeland, Feng Qin
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Patent number: 11913140Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI?50% and/or an initial thermal decomposition temperature in air of ?555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.Type: GrantFiled: May 3, 2018Date of Patent: February 27, 2024Assignee: PBI Performance ProductsInventors: Brian P. Shiels, Gregory S. Copeland, Feng Qin
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Patent number: 10934395Abstract: A polybenzimidazole (PBI) resin including a polybenzimidazole oligomer having at least two reactive end groups is provided. Also provided is a method of making a polybenzimidazole oligomer with at least two reactive end groups including the steps of reacting a tetraamine, a dicarboxylic component, and a reactive end group moiety in a solvent at a temperature greater than room temperature for a period of time; precipitating the oligomer from the solvent after reacting; and removing any reaction by-products from the oligomer after precipitating. A method of making a PBI molded article and a PBI molded article are also provided.Type: GrantFiled: June 6, 2019Date of Patent: March 2, 2021Assignee: PBI PERFORMANCE PRODUCTS, INC.Inventors: Brian C. Benicewicz, Amin Daryaei, Ran Liu, Gregory S. Copeland
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Publication number: 20190382531Abstract: A polybenzimidazole (PBI) resin including a polybenzimidazole oligomer having at least two reactive end groups is provided. Also provided is a method of making a polybenzimidazole oligomer with at least two reactive end groups including the steps of reacting a tetraamine, a dicarboxylic component, and a reactive end group moiety in a solvent at a temperature greater than room temperature for a period of time; precipitating the oligomer from the solvent after reacting; and removing any reaction by-products from the oligomer after precipitating. A method of making a PBI molded article and a PBI molded article are also provided.Type: ApplicationFiled: June 6, 2019Publication date: December 19, 2019Inventors: Brian C. Benicewicz, Amin Daryaei, Ran Liu, Gregory S. Copeland
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Patent number: 10273340Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.Type: GrantFiled: October 24, 2017Date of Patent: April 30, 2019Assignee: PBI Performances Products, Inc.Inventors: John B. Hopkins, Jr., Karin M. Hudson, Gregory S. Copeland, Michael Gruender
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Publication number: 20180251915Abstract: A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU. A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI?50% and/or an initial thermal decomposition temperature in air of ?555° C.Type: ApplicationFiled: May 3, 2018Publication date: September 6, 2018Inventors: Brian P. Shiels, Gregory S. Copeland, Feng Qin
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Publication number: 20180251916Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI?50% and/or an initial thermal decomposition temperature in air of ?555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.Type: ApplicationFiled: May 3, 2018Publication date: September 6, 2018Inventors: Brian P. Shiels, Gregory S. Copeland, Feng Qin
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Publication number: 20180044493Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.Type: ApplicationFiled: October 24, 2017Publication date: February 15, 2018Inventors: John B. Hopkins, JR., Karin M. Hudson, Gregory S. Copeland, Michael Gruender
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Patent number: 9828479Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.Type: GrantFiled: July 3, 2013Date of Patent: November 28, 2017Assignee: PBI Performance Products, Inc.Inventors: John B. Hopkins, Jr., Karin M. Hudson, Gregory S. Copeland, Michael Gruender
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Patent number: 9732224Abstract: The polymer mixture comprises polybenzimidazole (PBI)/polyvinylbutyral (PVB). The weight ratio (PVB:PBI) of this mixture may range from 0.25-50:50-99.75 or 15-85:15-85. The coating is based upon the polymer mixture.Type: GrantFiled: May 18, 2012Date of Patent: August 15, 2017Assignee: PBI Performance Products, Inc.Inventors: John C. Moore, Gregory S. Copeland, Michael Gruender
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Publication number: 20170145162Abstract: A method of making a polybenzimidazole (PBI) includes the steps of: reacting, in a solution, an organic compound having at least 2 amino groups with an organic aldehyde adduct, the reactants comprise at least 8% by weight of the solution. A solvent of the solution may be selected from the group of: N,N-dimethylacetamide (DMAc), N,N-dimethylformamide (DMF), dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), tetramethylene sulfone, and combinations thereof. The organic aldehyde adduct may be an organic aldehyde bisulfite adduct. The organic aldehyde portion of the organic aldehyde adduct being aliphatic, alicyclic, aromatic, heterocyclic, or heteroaromatic aldehyde or mixtures thereof. The polybenzimidazole may have an intrinsic viscosity of at least 0.40 dl/g.Type: ApplicationFiled: February 8, 2017Publication date: May 25, 2017Inventors: Brian C. Benicewicz, Alexander Lanier Gulledge, Warren P. Steckle, JR., Gregory S. Copeland, Bobby G. Dawkins
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Patent number: 9598541Abstract: A method of making a polybenzimidazole (PBI) includes the steps of: reacting, in a solution, an organic compound having at least 2 amino groups with an organic aldehyde adduct, the reactants comprise at least 8% by weight of the solution. A solvent of the solution may be selected from the group of: N,N-dimethylacetamide (DMAc), N,N-dimethylformamide (DMF), dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), tetramethylene sulfone, and combinations thereof. The organic aldehyde adduct may be an organic aldehyde bisulfite adduct. The organic aldehyde portion of the organic aldehyde adduct being aliphatic, alicyclic, aromatic, heterocyclic, or heteroaromatic aldehyde or mixtures thereof. The polybenzimidazole may have an intrinsic viscosity of at least 0.40 dl/g.Type: GrantFiled: June 2, 2014Date of Patent: March 21, 2017Assignee: PBI Performance Products, Inc.Inventors: Brian C. Benicewicz, Alexander Lanier Gulledge, Warren P. Steckle, Jr., Gregory S. Copeland, Bobby G. Dawkins
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Publication number: 20170009383Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI?50% and/or an initial thermal decomposition temperature in air of 555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.Type: ApplicationFiled: June 27, 2016Publication date: January 12, 2017Inventors: Brian P. Shiels, Gregory S. Copeland, Feng Qin
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Patent number: 9447242Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.Type: GrantFiled: February 9, 2012Date of Patent: September 20, 2016Assignee: PBI Performance Products, Inc.Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III
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Patent number: 9156983Abstract: A process for producing a solution blend of a polybenzimidazole (PBI) and a polyetherketoneketone (PEKK). The PBI is mixed with sulfuric acid at a temperature between 40° C. and 80° C. for 30 minutes to 2 hours to produce a PBI solution then cooled to room temperature to form a cooled PBI solution. Then PEKK is added to the cooled PBI solution to form a mixture and that mixture is stirred from 30 minutes to 2 hours at room temperature to form a stirred mixture. The stirred mixture is poured into an excess of water being stirred swiftly to form an aqueous mixture. The aqueous mixture is filtered to produce a blend. The blend is washed with water and dried. The resulting blend can yield a blend in all proportion from 1/99 PBI/PEKK to 99/1 PBI/PEKK.Type: GrantFiled: June 27, 2014Date of Patent: October 13, 2015Assignee: PBI Performance Products, Inc.Inventors: Bobby G. Dawkins, Michael Gruender, Gregory S. Copeland, Tim Hsu
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Patent number: 9018308Abstract: PBI compositions include solutions comprising PBI and acrylate monomer and coatings comprising PBI and polyacrylate. The solutions may also include polymerization initiator, solvent, co-polymers. The coatings are thermally resistant, electrically insulating (dielectric), and adhesive. The PBI compositions are used in the manufacture of microelectronics and related products. Methods for applying the PBI compositions are also discussed.Type: GrantFiled: December 1, 2010Date of Patent: April 28, 2015Assignee: PBI Performance Products, Inc.Inventors: John C. Moore, Gregory S. Copeland, Michael Gruender
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Publication number: 20140357831Abstract: A method of making a polybenzimidazole (PBI) includes the steps of: reacting, in a solution, an organic compound having at least 2 amino groups with an organic aldehyde adduct, the reactants comprise at least 8% by weight of the solution. A solvent of the solution may be selected from the group of: N,N-dimethylacetamide (DMAc), N,N-dimethylformamide (DMF), dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), tetramethylene sulfone, and combinations thereof. The organic aldehyde adduct may be an organic aldehyde bisulfite adduct. The organic aldehyde portion of the organic aldehyde adduct being aliphatic, alicyclic, aromatic, heterocyclic, or heteroaromatic aldehyde or mixtures thereof. The polybenzimidazole may have an intrinsic viscosity of at least 0.40 dl/g.Type: ApplicationFiled: June 2, 2014Publication date: December 4, 2014Applicant: PBI Performance Products, Inc.Inventors: Brian C. Benicewicz, Alexander Lanier Gulledge, Warren P. Steckle, JR., Gregory S. Copeland, Bobby G. Dawkins
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Publication number: 20140309377Abstract: A process for producing a solution blend of a polybenzimidazole (PBI) and a polyetherketoneketone (PEKK). The PBI is mixed with sulfuric acid at a temperature between 40° C. and 80° C. for 30 minutes to 2 hours to produce a PBI solution then cooled to room temperature to form a cooled PBI solution. Then PEKK is added to the cooled PBI solution to form a mixture and that mixture is stirred from 30 minutes to 2 hours at room temperature to form a stirred mixture. The stirred mixture is poured into an excess of water being stirred swiftly to form an aqueous mixture. The aqueous mixture is filtered to produce a blend. The blend is washed with water and dried. The resulting blend can yield a blend in all proportion from 1/99 PBI/PEKK to 99/1 PBI/PEKK.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Inventors: Bobby G. Dawkins, Michael Gruender, Gregory S. Copeland, Tim Hsu
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Patent number: 8802789Abstract: A process for producing a solution blend of a polybenzimidazole (PBI) and a polyetherketoneketone (PEKK). The PBI is mixed with sulfuric acid at a temperature between 40° C. and 80° C. for 30 minutes to 2 hours to produce a PBI solution then cooled to room temperature to form a cooled PBI solution. Then PEKK is added to the cooled PBI solution to form a mixture and that mixture is stirred from 30 minutes to 2 hours at room temperature to form a stirred mixture. The stirred mixture is poured into an excess of water being stirred swiftly to form an aqueous mixture. The aqueous mixture is filtered to produce a blend. The blend is washed with water and dried. The resulting blend can yield a blend in all proportion from 1/99 PBI/PEKK to 99/1 PBI/PEKK.Type: GrantFiled: October 9, 2012Date of Patent: August 12, 2014Assignee: PBI Performance Products, Inc.Inventors: Bobby G. Dawkins, Michael Gruender, Gregory S. Copeland, Tim Hsu
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Publication number: 20130331470Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.Type: ApplicationFiled: July 3, 2013Publication date: December 12, 2013Applicant: PBI Performance Products Inc.Inventors: John B. Hopkins, JR., Karin M. Hudson, Gregory S. Copeland, Michael Gruender