Patents by Inventor Lina Prada
Lina Prada 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: 9243125Abstract: The present application relates to a thermoplastic composition, comprising: a polycarbonate polymer; 0.05 to 0.2 weight percent of a triacylglyceride release agent; and 0.25 to 0.55 weight percent of a tetrastearate second release agent. The total amount of the triacylglyceride release agent and the second release agent is less than or equal to 0.6 weight percent and the weight percent values are based on the total weight of the composition.Type: GrantFiled: September 27, 2013Date of Patent: January 26, 2016Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Mar Diez Diaz, Lina Prada Obis
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Patent number: 8916259Abstract: A multilayer thermoplastic film having polycarbonate layers is disclosed, in which a first layer comprises a first polycarbonate that comprises repeat units derived from one or more of a monoaryl monomer (II) and/or (III), and a diaryl monomer (IV) as defined herein. A second layer, adjacent to the first layer and coextruded therewith, comprises another polycarbonate that is not the same as a polycarbonate in the first layer. The first layer provides improved properties, for example hardness, impact, and/or scratch resistance.Type: GrantFiled: December 18, 2008Date of Patent: December 23, 2014Assignee: Sabic Global Technologies B.V.Inventors: Sapna Kirk Blackburn, David D. Clinnin, Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, André van Zyl
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Patent number: 8765029Abstract: The present invention provides methods for controlling the optical properties of a light transmissive article. The method includes identifying a target window in an Abbe diagram comprising reference polymeric materials. The method further includes selecting a first polymeric material from the reference polymeric materials and compounding the first polymeric material with a stable UV chromophore to provide a first polymer composition. The method further includes transforming the first polymer composition to provide the light transmissive article, wherein the light transmissive article has an Abbe number and a refractive index which falls within the target window. Light transmissive articles prepared using the above methods are also provided.Type: GrantFiled: December 5, 2006Date of Patent: July 1, 2014Assignee: Sabic Innovative Plastics IP B.V.Inventors: Eugene Pauling Boden, Brian Lee Lawrence, Steven James Montgomery, Shreyas Chakravarti, Peter Hendrikus Vollenberg, Edward Kung, Jan Henk Kamps, Lina Prada, John Brian McDermott, Michael Teruki Takemori
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Publication number: 20140094550Abstract: The present application relates to a thermoplastic composition, comprising: a polycarbonate polymer; 0.05 to 0.2 weight percent of a triacylglyceride release agent; and 0.25 to 0.55 weight percent of a tetrastearate second release agent. The total amount of the triacylglyceride release agent and the second release agent is less than or equal to 0.6 weight percent and the weight percent values are based on the total weight of the composition.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: SABIC Innovative Plastics IP B.V.Inventors: Mar Diez Diaz, Lina Prada Obis
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Patent number: 8609786Abstract: A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.Type: GrantFiled: December 18, 2008Date of Patent: December 17, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, André van Zyl
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Patent number: 7786246Abstract: Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and a polysiloxane block.Type: GrantFiled: December 23, 2009Date of Patent: August 31, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam
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Publication number: 20100160575Abstract: A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.Type: ApplicationFiled: December 18, 2008Publication date: June 24, 2010Inventors: Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, Andre van Zyl
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Publication number: 20100159211Abstract: A multilayer thermoplastic film having polycarbonate layers is disclosed, in which a first layer comprises a first polycarbonate that comprises repeat units derived from one or more of a monoaryl monomer (II) and/or (III), and a diaryl monomer (IV) as defined herein. A second layer, adjacent to the first layer and coextruded therewith, comprises another polycarbonate that is not the same as a polycarbonate in the first layer. The first layer provides improved properties, for example hardness, impact, and/or scratch resistance.Type: ApplicationFiled: December 18, 2008Publication date: June 24, 2010Inventors: Sapna Kirk BLACKBURN, David D. Clinnin, Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, Andre van Zyl
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Publication number: 20100099832Abstract: Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and a polysiloxane block.Type: ApplicationFiled: December 23, 2009Publication date: April 22, 2010Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam
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Patent number: 7666972Abstract: Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and optionally, an additional unit different from the isosorbide and aliphatic units, wherein the isosorbide unit, aliphatic unit, and additional unit are each carbonate, or a combination of carbonate and ester units. Also disclosed are a thermoplastic composition and an article comprising the isosorbide-based polycarbonate.Type: GrantFiled: October 18, 2007Date of Patent: February 23, 2010Assignee: SABIC Innovative Plastics IP B., V.Inventors: Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam
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Publication number: 20090105393Abstract: Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and optionally, an additional unit different from the isosorbide and aliphatic units, wherein the isosorbide unit, aliphatic unit, and additional unit are each carbonate, or a combination of carbonate and ester units. Also disclosed are a thermoplastic composition and an article comprising the isosorbide-based polycarbonate.Type: ApplicationFiled: October 18, 2007Publication date: April 23, 2009Inventors: Bernardus Johannes Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Steendam
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Publication number: 20080130129Abstract: The present invention provides methods for controlling the optical properties of a light transmissive article. The method includes identifying a target window in an Abbe diagram comprising reference polymeric materials. The method further includes selecting a first polymeric material from the reference polymeric materials and compounding the first polymeric material with a stable UV chromophore to provide a first polymer composition. The method further includes transforming the first polymer composition to provide the light transmissive article, wherein the light transmissive article has an Abbe number and a refractive index which falls within the target window. Light transmissive articles prepared using the above methods are also provided.Type: ApplicationFiled: December 5, 2006Publication date: June 5, 2008Applicant: General Electric CompanyInventors: Eugene Pauling Boden, Brian Lee Lawrence, Steven James Montgomery, Shreyas Chakravarti, Peter Hendrikus Vollenberg, Edward Kung, Jan Henk Kamps, Lina Prada, John Brian McDermott, Michael Teruki Takemori
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Patent number: 7259223Abstract: A process for the production of polycarbonate having increased end-cap levels, the process comprising adding a terminal blocking agent of the formula: wherein R1 is a propoxy or butoxy and R2 is selected from the group consisting of C1-C30 alkyl, C1-C30 alkoxy, C6-C30 aryl, C7-C30 aralkyl, and C6-C30 aryloxy.Type: GrantFiled: March 17, 2004Date of Patent: August 21, 2007Assignee: General Electric CompanyInventors: Hans Peter Brack, James Anthony Cella, Dennis Karlik, Lina Prada
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Patent number: 7189869Abstract: A method of making polycarbonates comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quaternary phosphonium compound; and purifying the byproduct stream to separate phenol, wherein the separated phenol has a phosphorus concentration of less than or equal to about 3 part per million, based upon the total weight of the phenol separated.Type: GrantFiled: November 1, 2004Date of Patent: March 13, 2007Assignee: General Electric CompanyInventors: Gerardo Hidalgo, Patrick J. McCloskey, Alberto Nisoli, Lina Prada
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Patent number: 7183371Abstract: A method of making polycarbonate comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quaternary phosphonium compound; and purifying the byproduct stream to separate the carbonic acid diester, wherein the separated carbonic acid diester has a phosphorous concentration of less than or equal to about 30 parts per million.Type: GrantFiled: November 1, 2004Date of Patent: February 27, 2007Assignee: General Electric CompanyInventors: Gerardo Hidalgo, Patrick J. McCloskey, Alberto Nisoli, Lina Prada
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Publication number: 20060094854Abstract: A method of making polycarbonate comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quaternary phosphonium compound; and purifying the byproduct stream to separate the carbonic acid diester, wherein the separated carbonic acid diester has a phosphorous concentration of less than or equal to about 30 parts per million.Type: ApplicationFiled: November 1, 2004Publication date: May 4, 2006Inventors: Gerardo Hidalgo, Patrick McCloskey, Alberto Nisoli, Lina Prada
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Publication number: 20040220352Abstract: A process for the production of polycarbonate having increased end-cap levels, the process comprising adding a terminal blocking agent of the formula: 1Type: ApplicationFiled: March 17, 2004Publication date: November 4, 2004Inventors: Hans Peter Brack, James Anthony Cella, Dennis Karlik, Lina Prada
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Publication number: 20040164446Abstract: A method for producing a thermoplastic sheet includes extruding a composition including a melt polycarbonate resin having a Fries content of about 10 ppm to about 2000 ppm. The composition enables the sheet to be extruded with excellent uniformity.Type: ApplicationFiled: February 11, 2004Publication date: August 26, 2004Inventors: Johannes Martinus Dina Goossens, Jan Henk Kamps, Lina Prada, Augustina Martina Tacke-Willemsen, Hendrik Verhoogt, Hendricus Franciscus Zirkzee
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Publication number: 20030214070Abstract: A method for producing a thermoplastic sheet includes extruding a composition including a melt polycarbonate resin having a Fries content of about 10 ppm to about 2000 ppm. The composition enables the sheet to be extruded with excellent uniformity.Type: ApplicationFiled: May 8, 2002Publication date: November 20, 2003Applicant: General Electric CompanyInventors: Johannes Martinus Dina Goossens, Jan Henk Kamps, Lina Prada, Augustina Martina Tacke-Willemsen, Hendrik Verhoogt, Hendricus Franciscus Zirkzee
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Patent number: 6620902Abstract: A process for preparing an end-capped polycarbonate comprises melt reacting an aromatic dihydroxy compound, a carbonic acid diester, and optionally a catalyst in a prepolymerization vessel to form a polycarbonate product; transferring the polycarbonate product from the prepolymerization vessel; mixing the polycarbonate product with an end-capping agent under hermetic seal at a pressure of at least about 760 mm Hg; and transferring the polycarbonate product and end-capping agent mixture to a postpolymerization vessel to endcap the polycarbonate product.Type: GrantFiled: April 8, 2002Date of Patent: September 16, 2003Assignee: General Electric CompanyInventors: Tomoaki Shimoda, Akio Ikeda, Takato Kimura, Ken Tamada, Hans-Peter Brack, Dennis Karlik, Lina Prada, Hendricus Franciscus Zirkzee, James Anthony Cella