Patents by Inventor Scott D. Allen
Scott D. Allen 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: 20130244864Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.Type: ApplicationFiled: August 14, 2012Publication date: September 19, 2013Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Geoffrey W. Coates, Anna E. Cherian, Chris A. Simoneau, Alexei A. Gridnev, Jay J. Farmer
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Publication number: 20130209775Abstract: The present invention provides, among other things, extruded blends of aliphatic polycarbonates and polyolefins. In one aspect, provided blends comprise aliphatic polycarbonates such as poly(propylene carbonate) and a lesser amount of a crystalline or semicrystalline polymer. In certain embodiments, provided blends are characterized in that they exhibit unexpected improvements in their elongation properties. In another aspect, the invention provides methods of making such materials and applications of the materials in applications such as the manufacture of consumer packaging materials.Type: ApplicationFiled: October 11, 2011Publication date: August 15, 2013Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Sanjeev Naik
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Publication number: 20130172482Abstract: The present invention encompasses polymer compositions comprising aliphatic polycarbonate chains containing sites of olefinic unsaturation. In certain embodiments the aliphatic polycarbonate chains comprise sites of olefinic unsaturation capable of participating in radical-promoted olefin polymerizations. In certain embodiments, the invention encompasses composites formed by the polymerization or cross-linking of a combination of olefinic monomers and aliphatic polycarbonate chains containing sites of olefinic unsaturation.Type: ApplicationFiled: August 26, 2011Publication date: July 4, 2013Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Jay J. Farmer, Peter Kopf, David Hurwitz, Thomas R. Welter
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Publication number: 20130165670Abstract: Continuous flow systems and methods produce succinic anhydride by a double carbonylation of ethylene oxide with carbon monoxide and at least one catalyst. In some embodiments, the double carbonylation occurs using a single catalyst. In other embodiments, a first catalyst is used to promote the first carbonylation, and a second catalyst different from the first catalyst is used to promote the second carbonylation. The succinic anhydride is isolated from the product stream by crystallization and the catalyst is recycled to the reaction stream.Type: ApplicationFiled: August 25, 2011Publication date: June 27, 2013Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Bernard Duane Dombek, Olan Stanley Fruchey, Nye A. Clinton
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Patent number: 8470956Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.Type: GrantFiled: August 14, 2012Date of Patent: June 25, 2013Assignee: Novomer, Inc.Inventors: Scott D. Allen, Geoffrey W. Coates, Anna E. Cherian, Chris A. Simoneau, Alexei A. Gridnev, Jay J. Farmer
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Patent number: 8445703Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: GrantFiled: April 7, 2010Date of Patent: May 21, 2013Assignee: Novomer, Inc.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Publication number: 20130066044Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.Type: ApplicationFiled: August 14, 2012Publication date: March 14, 2013Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Geoffrey W. Coates, Anna E. Cherian, Chris A. Simoneau, Alexei A. Gridnev, Jay J. Farmer
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Patent number: 8324337Abstract: A catalyst, co-catalyst, and/or chain transfer agent is added at a time after initiation of an addition polymerization reaction to produce a polymer product with a widened molecular weight distribution relative to having all of the components in the original reaction mixture. The catalyst, co-catalyst, or chain transfer agent may be added discretely or continuously to the reaction to produce a product with a bimodal, trimodal, or other broadened molecular weight distribution.Type: GrantFiled: November 17, 2010Date of Patent: December 4, 2012Assignee: Novomer Inc.Inventor: Scott D. Allen
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Patent number: 8252891Abstract: The present disclosure provides, in part, a method for removing a catalyst from a product of catalyzed aliphatic polycarbonate polymerization reaction.Type: GrantFiled: September 17, 2009Date of Patent: August 28, 2012Assignee: Novomer, Inc.Inventors: Anna E. Cherian, Jeffrey R. Conuel, David E. Decker, Scott D. Allen
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Patent number: 8247520Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.Type: GrantFiled: September 8, 2009Date of Patent: August 21, 2012Assignee: Novomer, Inc.Inventors: Scott D. Allen, Geoffrey W. Coates, Anna E. Cherian, Chris A. Simoneau, Alexei A. Gridnev, Jay J. Farmer
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Publication number: 20120156410Abstract: The present invention provides articles made from structurally precise poly(propylene carbonate) and blends thereof. Provided articles include articles manufactured from poly(propylene carbonate) wherein the PPC has a high head-to-tail ratio, low ether linkage content, narrow polydispersity and low cyclic carbonate content. Also provided are articles made from, incorporating or coated with structurally precise PPC.Type: ApplicationFiled: July 1, 2010Publication date: June 21, 2012Applicant: NOVOMER, INC.Inventor: Scott D. Allen
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Publication number: 20120123137Abstract: The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.Type: ApplicationFiled: April 7, 2010Publication date: May 17, 2012Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Ronald R. Valente, Han Lee, Anna E. Cherian, Donald L. Bunning, Nye A. Clinton, Olan Stanley Fruchey, Bernard Duane Dombek
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Publication number: 20110313128Abstract: (Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content>81%, normally at least 99%.Type: ApplicationFiled: August 30, 2011Publication date: December 22, 2011Inventors: Geoffrey W. Coates, Scott D. Allen, Claire Cohen, Kathryn Peretti, Hiroharu Ajiro
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Publication number: 20110257296Abstract: The present invention provides polymer compositions having a tunable decomposition temperature. Suitable additives are disclosed for lowering the decomposition temperature of polymer compositions. The invention further provides methods of preparing such polymer compositions with tunable decomposition temperatures.Type: ApplicationFiled: December 18, 2009Publication date: October 20, 2011Applicant: NOVOMER, INC.Inventors: Robert E. LaPointe, Scott D. Allen, Jeffrey R. Conuel
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Patent number: 8039331Abstract: An opto-thermal annealing method for forming a field effect transistor uses a reflective metal gate so that electrical properties of the metal gate and also interface between the metal gate and a gate dielectric are not compromised when opto-thermal annealing a source/drain region adjacent the metal gate. Another opto-thermal annealing method may be used for simultaneously opto-thermally annealing: (1) a silicon layer and a silicide forming metal layer to form a fully silicided gate; and (2) a source/drain region to form an annealed source/drain region. An additional opto-thermal annealing method may use a thermal insulator layer in conjunction with a thermal absorber layer to selectively opto-thermally anneal a silicon layer and a silicide forming metal layer to form a fully silicide gate.Type: GrantFiled: May 14, 2008Date of Patent: October 18, 2011Assignee: International Business Machines CorporationInventors: Scott D. Allen, Cyril Cabral, Jr., Kevin K. Dezfulian, Sunfei Fang, Brian J. Greene, Rajarao Jammy, Christian Lavoie, Zhijiong Luo, Hung Ng, Chun-Yung Sung, Clement H. Wann, Huilong Zhu
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Patent number: 8026317Abstract: (Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content >81%, normally at least 99%.Type: GrantFiled: June 12, 2008Date of Patent: September 27, 2011Assignee: Cornell Research Foundation, Inc.Inventors: Geoffrey W. Coates, Scott D. Allen, Claire Cohen, Kathryn Peretti, Hiroharu Ajiro
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Publication number: 20110230580Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.Type: ApplicationFiled: September 8, 2009Publication date: September 22, 2011Applicant: Novomer, IncInventors: Scott D. Allen, Geoffrey W. Coates, Anna E. Cherian, Chris A. Simoneau, Alexei A. Gridnev, Jay J. Farmer
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Publication number: 20110218127Abstract: The disclosure pertains to amphiphilic block copolymers comprising an aliphatic polycarbonate chain coupled to a hydrophilic polymer. Such amphiphilic polymers may have the formula A-L-B, where A- is a polycarbonate or polyethercarbonate chain having from about 3 to about 500 repeating units, L is a linker moiety and —B is a hydrophilic oligomer having from about 4 to about 200 repeating units. Provided copolymers are useful as surfactants capable of emulsifying aqueous solutions and supercritical carbon dioxide. Provided copolymers also have utility as additives for use in enhanced oil recovery methods.Type: ApplicationFiled: October 30, 2009Publication date: September 8, 2011Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Chris A. Simoneau, John M. Salladay, David M. Hatfield, John W. Stevens
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Publication number: 20110207899Abstract: The present disclosure is directed to, in part, an aliphatic polycarbonate polymerization reaction initiated by combining an epoxide with carbon dioxide in the presence of a catalytic transition metal-ligand complex to form a reaction mixture, and further quenching that polymerization reaction by contacting the reaction mixture with an acid containing a non-nucleophilic anion produces a crude polymer solution with improved stability and processability.Type: ApplicationFiled: September 17, 2009Publication date: August 25, 2011Applicant: NOVOMER, INC.Inventors: Scott D. Allen, Jeffrey R. Conuel, David E. Decker, Anna E. Cherian
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Publication number: 20110201779Abstract: The present disclosure provides, in part, a method for removing a catalyst from a product of catalyzed aliphatic polycarbonate polymerization reaction.Type: ApplicationFiled: September 17, 2009Publication date: August 18, 2011Applicant: NOVOMER, INC.Inventors: Anna E. Cherian, Jeffrey R. Conuel, David E. Decker, Scott D. Allen