Patents by Inventor Prabuddha Bansal
Prabuddha Bansal 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: 20240010901Abstract: A polymer composition comprising 100 parts by weight of a polymer matrix that includes a polyarylene sulfide and from about 40 to about 200 parts by weight of a plurality of mineral particles dispersed within the polymer matrix is provided. The polymer composition exhibits an in-plane thermal conductivity of about 2.5 W/m-K or more as determined in accordance with ASTM E1461-13(2022).Type: ApplicationFiled: June 22, 2023Publication date: January 11, 2024Inventors: Yuehua Yu, Prabuddha Bansal, Christopher McGrady
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Publication number: 20230203271Abstract: A polymer composition containing a thermoplastic polymer and an electromagnetic interference filler is provided. At a thickness of 3.2 millimeters and over a frequency range from 2 GHz to 18 GHz, the composition may exhibit an average absorbency of about 25% or greater and an average electromagnetic interference shielding effectiveness of about 40 decibels or more, as determined in accordance with ASTM D4935-18.Type: ApplicationFiled: December 21, 2022Publication date: June 29, 2023Inventors: Yuehua Yu, Joseph Grenci, Brian Hokkanen, Darin Grinsteinner, Jun Luo, Prabuddha Bansal
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Publication number: 20230078494Abstract: A multi-layered composite comprising a substrate and a conductive film is provided. The substrate contains a polymer composition that contains a thermoplastic polymer having a deflection temperature under load of about 40° C. or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa. The conductive film contains a noble metal. The composite exhibits an electromagnetic interference shielding effectiveness of about 25 decibels or more as determined in accordance with ASTM D4935-18 at a frequency of 10 GHz and thickness of 3 millimeters.Type: ApplicationFiled: August 23, 2022Publication date: March 16, 2023Inventors: Prabuddha Bansal, Suresh Subramonian, SooHee Choi, Young-Chul Yang
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Publication number: 20220149723Abstract: A power electronic module comprising a housing that receives at least one power converter is provided. The housing contains a polymer composition that includes an electromagnetic interference filler distributed within a polymer matrix. The polymer matrix contains a thermoplastic polymer having a deflection temperature under load of about 40° C. or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa. Further, the composition exhibits an electromagnetic interference shielding effectiveness of about 25 decibels or more as determined in accordance with ASTM D4935-18 at a frequency of 30 MHz and thickness of 3 millimeters.Type: ApplicationFiled: November 9, 2021Publication date: May 12, 2022Inventors: Suresh Subramonian, Prabuddha Bansal, Young-Chul Yang, Cindy Choi, Arno Wolf
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Publication number: 20220151117Abstract: An electronic module that comprises a housing that receives at least one electronic component is disclosed. The housing contains a polymer composition that includes an electromagnetic interference filler distributed within a polymer matrix, wherein the electromagnetic interference filler includes a plurality of carbon fibers and the polymer matrix contains a thermoplastic polymer. Further, the composition exhibits an electromagnetic interference shielding effectiveness of about 30 decibels or more, as determined in accordance with ASTM D4935-18 at a frequency of 5 GHz and thickness of 1 millimeter, and an in-plane thermal conductivity of about 1 W/m-K or more, as determined in accordance with ASTM E 1461-13.Type: ApplicationFiled: November 9, 2021Publication date: May 12, 2022Inventors: Suresh Subramonian, Prabuddha Bansal, Young-Chul Yang, SooHee Choi, Arno Wolf
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Patent number: 9631057Abstract: In one embodiment the instant invention generally pertains to a method for producing glucose for fermentation. The method comprises first treating a biomass with acid and heat under conditions sufficient to produce a composition mixture comprising cellulose suitable for enzymatic hydrolysis. Next, at least a portion of the cellulose of step (a) is enzymatically hydrolyzed under conditions sufficient to form a composition comprising glucose. The glucose is then fermented. Advantageously, one or more reaction conditions are more efficient because they are selected by first measuring an initial hydrolysis rate of said biomass and then selecting one or more appropriate reaction conditions based upon said initial hydrolysis rate.Type: GrantFiled: November 9, 2010Date of Patent: April 25, 2017Assignees: Texaco Inc., Georgia Tech Research CorporationInventors: Matthew James Realff, Ronald W. Smith, Prabuddha Bansal, Andreas Sebastian Bommarius, Melanie Hall, Jay Hyung Lee
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Publication number: 20160369455Abstract: A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.Type: ApplicationFiled: March 11, 2015Publication date: December 22, 2016Inventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E. Kizer
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Publication number: 20160040360Abstract: A process for treating a cellulosic material comprising pretreating the cellulosic material and then extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises a cellulose solvent and a co-solvent. The cellulosic product advantageously retains its cellulosic fiber morphology. The processes involve separating and recovering the hemicellulose and separating and recycling various process streams employed in the process.Type: ApplicationFiled: August 3, 2015Publication date: February 11, 2016Inventors: Bin Li, Leslie Allen, Dinesh Arora, Prabuddha Bansal, Monica Boatwright, Christopher M. Bundren, Michael T. Combs, Denis G. Fallon, Rongfu Li, Jay Mehta, Tianshu Pan
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Publication number: 20150275033Abstract: A film containing an aromatic polyester with aromatic biphenyl repeating units having the following general Formula I: is provided. The film is annealed and exhibits a relatively isotropic tensile property.Type: ApplicationFiled: October 29, 2014Publication date: October 1, 2015Inventors: Yi Li, Kamlesh P. Nair, Prabuddha Bansal, Tsz Ming Tsang, James P. Shepherd
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Patent number: 9145469Abstract: An aromatic polyester that contains one or more aromatic ester repeating units and one or more biphenyl repeating units is provided. While a wide variety of aromatic ester repeating units may be employed, the polymer is nevertheless “low naphthenic” to the extent that it contains a minimal content of repeating units derived from naphthenic hydroxycarboxylic acids and naphthenic dicarboxylic acids. Despite the absence of a high level of conventional naphthenic acid repeating units, the present inventors have discovered that selective control over the type and relative concentration of the biphenyl repeating units can lead to “low naphthenic” polymers that are not only soluble in certain solvents, but also capable of exhibiting good mechanical properties. Thus, the ability of the resulting polymer to be dissolved or dispersed in various solvents can be enhanced without sacrificing performance.Type: GrantFiled: September 16, 2013Date of Patent: September 29, 2015Assignee: Ticona LLCInventors: Kamlesh P. Nair, Young Shin Kim, James P. Shepherd, Prabuddha Bansal
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Publication number: 20150184343Abstract: A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.Type: ApplicationFiled: March 11, 2015Publication date: July 2, 2015Inventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E. Kizer
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Publication number: 20150184337Abstract: A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an ionic liquid and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.Type: ApplicationFiled: March 11, 2015Publication date: July 2, 2015Inventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E. Kizer
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Patent number: 8986501Abstract: A method for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.Type: GrantFiled: March 14, 2013Date of Patent: March 24, 2015Assignee: Celanese International CorporationInventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E Kizer
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Patent number: 8980050Abstract: A method for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.Type: GrantFiled: March 14, 2013Date of Patent: March 17, 2015Assignee: Celanese International CorporationInventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E Kizer
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Publication number: 20140326421Abstract: A process for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises a cellulose solvent and a co-solvent. The cellulosic product advantageously retains its cellulosic fiber morphology. The processes involve separating and recovering the hemicellulose and separating and recycling various process streams employed in the process.Type: ApplicationFiled: May 2, 2014Publication date: November 6, 2014Applicant: Celanese International CorporationInventors: Denis G. Fallon, Thomas S. Garrett, Lawton Kizer, Bin Li, Rongfu Li, Jay Mehta, Tianshu Pan, Xiaoyan Tu, Leslie Allen, Dinesh Arora, Prabuddha Bansal, Michael T. Combs
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Publication number: 20140178654Abstract: A prepreg composite that contains a porous substrate impregnated with an aromatic polyester is provided. In addition to possessing a high degree of heat and moisture resistance, the present inventors have also discovered that the nature of the aromatic polyester can be selectively controlled so that it is soluble in a solvent. This allows for the formation of polymer solutions that can be readily employed to impregnate the porous substrate. The nature of the polyester and its relative concentration in the solution can also be tailored to achieve polymers that not only adhere well to the substrate, but also possess good thermal and mechanical properties for use in a wide variety of potential applications.Type: ApplicationFiled: September 16, 2013Publication date: June 26, 2014Applicant: Ticona, LLCInventors: Kamlesh P. Nair, Prabuddha Bansal, James P. Shepherd
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Publication number: 20140178705Abstract: A method for coating a non-metallic substrate with a polymer solution that includes an aromatic polyester and a solvent is provided. By selectively controlling the nature of the aromatic polyester, the present inventors have discovered that such polymer solutions can be readily formed, thereby enabling the use of simpler and less complex techniques (e.g., solvent casting) for coating substrates with aromatic polyesters. Moreover, the nature of the polyester and its relative concentration in the solution can also be tailored to achieve coatings that not only adhere well to the substrate, but also possess good thermal and mechanical properties for use in a wide variety of potential applications.Type: ApplicationFiled: September 16, 2013Publication date: June 26, 2014Applicant: Ticona LLCInventors: Kamlesh P. Nair, Prabuddha Bansal, James P. Shepherd
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Publication number: 20140087149Abstract: An aromatic copoly(ester-sulfone) that contains one or more aromatic ester repeating units and one or more aromatic sulfonyl repeating units is provided. While a wide variety of aromatic ester repeating units may be employed, the polymer is nevertheless “low naphthenic” to the extent that it contains a minimal content of repeating units derived from naphthenic hydroxycarboxylic acids and naphthenic dicarboxylic acids. Despite the absence of a high level of conventional naphthenic acid repeating units, the present inventors have discovered that selective control over the type and relative concentration of the aromatic sulfonyl repeating units can lead to “low naphthenic” polymers that are not only soluble in certain solvents, but also capable of exhibiting good mechanical properties. Thus, the ability of the resulting polymer to be dissolved or dispersed in various solvents can be enhanced without sacrificing performance.Type: ApplicationFiled: September 16, 2013Publication date: March 27, 2014Applicant: Ticona LLCInventors: Kamlesh P. Nair, Young Shin Kim, James P. Shepherd, Prabuddha Bansal
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Publication number: 20140087165Abstract: An aromatic polyester that contains one or more aromatic ester repeating units and one or more biphenyl repeating units is provided. While a wide variety of aromatic ester repeating units may be employed, the polymer is nevertheless “low naphthenic” to the extent that it contains a minimal content of repeating units derived from naphthenic hydroxycarboxylic acids and naphthenic dicarboxylic acids. Despite the absence of a high level of conventional naphthenic acid repeating units, the present inventors have discovered that selective control over the type and relative concentration of the biphenyl repeating units can lead to “low naphthenic” polymers that are not only soluble in certain solvents, but also capable of exhibiting good mechanical properties. Thus, the ability of the resulting polymer to be dissolved or dispersed in various solvents can be enhanced without sacrificing performance.Type: ApplicationFiled: September 16, 2013Publication date: March 27, 2014Applicant: Ticona LLCInventors: Kamlesh P. Nair, Young Shin Kim, James P. Shepherd, Prabuddha Bansal
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Publication number: 20140048221Abstract: A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an ionic liquid and a non-solvent comprising acetic acid. The cellulosic product retains the cellulosic fiber morphology.Type: ApplicationFiled: March 14, 2013Publication date: February 20, 2014Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E. Kizer