Patents by Inventor Maarten Antoon Jan Campman
Maarten Antoon Jan Campman 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: 7674872Abstract: The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture.Type: GrantFiled: June 17, 2008Date of Patent: March 9, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Hans Looij, Laurus van der Wekke, Dennis James Patrick Maria Willemse
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Patent number: 7671164Abstract: A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.Type: GrantFiled: May 21, 2008Date of Patent: March 2, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Jorge Garcia Agudo, Jan Henk Kamps, Hans Looij, Fernando Olmedo Fernandez, Dennis James Patrick Maria Willemse
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Publication number: 20090312503Abstract: The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture.Type: ApplicationFiled: June 17, 2008Publication date: December 17, 2009Applicant: SABIC Innovative Plastics IP BVInventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Hans Looij, Laurus Van der Wekke, Dennis James Willemse
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Patent number: 7632913Abstract: The present invention provides a reactor system for producing polycarbonate. The reactor system has one or more reactant vessels, an oligomerization reactor, a first pressure control device, a preheater, a second pressure control device, a distributor, and a flash tank. The one or more reactant vessels contain reactants contain a melt transesterification catalyst, a dihydroxy compound, and an activated diaryl carbonate. The reactor system is connected in the following configuration: (i) the one or more reactant vessels connected to the oligomerization reactor, (ii) the first pressure control device disposed between and connecting the outlet of the oligomerization reactor and the inlet of the preheater; (iii) the second pressure control device disposed between and connecting the outlet of the preheater and the distributor; and (iv) the distributor disposed at the inlet to the flash tank.Type: GrantFiled: September 28, 2007Date of Patent: December 15, 2009Assignee: Sabic Innovative Plastics IP B.V.Inventors: Maarten Antoon Jan Campman, Jan-Willem Goedmakers, Jürg Keller, Peter Willi Kreis
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Patent number: 7619053Abstract: A non-reactive monomer mixture has a monomer component dispersed in a melted diaryl carbonate. The monomer component has one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. Furthermore, the monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and the melting temperature of the diaryl carbonate.Type: GrantFiled: March 26, 2008Date of Patent: November 17, 2009Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Martin Herke Oyevaar, Yohana Perez de Diego, Laurus van der Wekke, Dennis James Patrick Maria Willemse
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Patent number: 7615605Abstract: A non-reactive monomer mixture contains a monomer component and a diaryl carbonate dispersed in the mixture. The monomer component includes one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. The monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and less than 5° C. above the melting point of the diaryl carbonate.Type: GrantFiled: September 19, 2008Date of Patent: November 10, 2009Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Yohana Perez de Diego, Dennis James Patrick Maria Willemse
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Patent number: 7601794Abstract: A non-reactive monomer mixture is formed from a dihydroxy component having one or more dihydroxy compounds dissolved in a melted diaryl carbonate. The dihydroxy component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The dihydroxy compounds of the dihydroxy component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the saturation point of the monomer mixture and the highest melting temperature of the individual dihydroxy compounds. The non-reactive monomer mixture can be stored and transported and then polymerized to form polycarbonate upon addition of a catalyst.Type: GrantFiled: September 28, 2007Date of Patent: October 13, 2009Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Yohana Perez de Diego, Martin Herke Oyevaar, Laurus van der Wekke, Dennis Willemse
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Publication number: 20090247726Abstract: A non-reactive monomer mixture contains a monomer component and a diaryl carbonate dispersed in the mixture. The monomer component includes one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. The monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and less than 5° C. above the melting point of the diaryl carbonate.Type: ApplicationFiled: September 19, 2008Publication date: October 1, 2009Applicant: SABIC INNOVATIVE PLASTICS IP BVInventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Yohana Perez de Diego, Dennis James Patrick Maria Willemse
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Publication number: 20090105443Abstract: A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.Type: ApplicationFiled: May 21, 2008Publication date: April 23, 2009Inventors: Hans-Peter BRACK, Maarten Antoon Jan CAMPMAN, Jorge GARCIA AGUDO, Jan Henk KAMPS, Hans LOOIJ, Fernando OLMEDO FERNANDEZ, Dennis James Patrick Maria WILLEMSE
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Publication number: 20090088549Abstract: A non-reactive monomer mixture has a monomer component dispersed in a melted diaryl carbonate. The monomer component has one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. Furthermore, the monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and the melting temperature of the diaryl carbonate.Type: ApplicationFiled: March 26, 2008Publication date: April 2, 2009Applicant: SABIC INNOVATIVE PLASTICS IP BVInventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Martin Herke Oyevaar, Yohana Perez de Diego, Laurus van der Wekke, Dennis James Patrick Maria Willemse
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Publication number: 20090088538Abstract: The present invention provides a reactor system for producing polycarbonate. The reactor system has one or more reactant vessels, an oligomerization reactor, a first pressure control device, a preheater, a second pressure control device, a distributor, and a flash tank. The one or more reactant vessels contain reactants contain a melt transesterification catalyst, a dihydroxy compound, and an activated diaryl carbonate. The reactor system is connected in the following configuration: (i) the one or more reactant vessels connected to the oligomerization reactor, (ii) the first pressure control device disposed between and connecting the outlet of the oligomerization reactor and the inlet of the preheater; (iii) the second pressure control device disposed between and connecting the outlet of the preheater and the distributor; and (iv) the distributor disposed at the inlet to the flash tank.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Applicant: SABIC INNOVATIVE PLASTICS IP BVInventors: Maarten Antoon Jan Campman, Jan-Willem Goedmakers
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Publication number: 20090088540Abstract: A non-reactive monomer mixture is formed from a dihydroxy component having one or more dihydroxy compounds dissolved in a melted diaryl carbonate. The dihydroxy component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The dihydroxy compounds of the dihydroxy component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the saturation point of the monomer mixture and the highest melting temperature of the individual dihydroxy compounds. The non-reactive monomer mixture can be stored and transported and then polymerized to form polycarbonate upon addition of a catalyst.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Applicant: SABIC INNOVATIVE PLASTICS IP BVInventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Yohana Perez de Diego, Martin Herke Oyevaar, Laurus van der Wekke, Dennis Willemse
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Patent number: 7365149Abstract: A surface of a melt polymerization reactor system having residual reaction components of a melt polymerization reaction thereon can be cleaned by introducing a cleaning agent having a phenolic compound to the polymerization reactor system and into contact with the surface of the melt polymerization reactor system having the residual reaction components of a melt polymerization reaction thereon. The residual reaction components of the melt polymerization reaction include polycarbonate oligomers or polymers or their degradation products. Further, the cleaning agent is maintained in contact with the surface for a period of time and at a temperature sufficient to substantially remove the residual reaction components from the surface.Type: GrantFiled: December 12, 2005Date of Patent: April 29, 2008Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Laurus van der Wekke, Dennis James Patrick Maria Willemse