Patents by Inventor Amitabha Kumar
Amitabha Kumar 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: 20240001661Abstract: Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforce-opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.Type: ApplicationFiled: June 5, 2023Publication date: January 4, 2024Applicant: Westlake Royal Building Products Inc.Inventors: Russell HILL, Amitabha KUMAR, Hamed LAKROUT, Li AI, Russ MAJORS, Brian SHAW, Robert F. RATHBONE, Cassandra HILL
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Patent number: 11851373Abstract: Compositions such as concrete compositions are described for use in building materials and products. The composition may comprise an aggregate composition comprising a particulate suppressing component and a cement. The composition may have an impact resistance of at least Class 1 as measured under ANSI/FM 4473. Methods of preparing and using such compositions are also described.Type: GrantFiled: December 20, 2019Date of Patent: December 26, 2023Assignee: WESTLAKE ROYAL ROOFING LLCInventors: Russell L. Hill, Robert F. Rathbone, Amitabha Kumar, Darren Schulz, Eric Miller, James Hill, Hamed Maraghechi, Jacob Myers
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Publication number: 20230303445Abstract: A method of forming a cured cement or concrete object is described that includes printing a carbonatable material and a CO2 source; and hardening the printed carbonatable material by a carbonation reaction. Associated cured and uncured objects, as well as related methods are also described.Type: ApplicationFiled: May 31, 2023Publication date: September 28, 2023Inventors: Amitabha KUMAR, Padmaja PARAKALA, Frederic DUNAND, Russell L. HILL
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Patent number: 11707927Abstract: Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforcement opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.Type: GrantFiled: April 15, 2016Date of Patent: July 25, 2023Assignee: Westlake Royal Building Products Inc.Inventors: Russell Hill, Amitabha Kumar, Hamed Lakrout, Li Al, Russ Majors, Brian Shaw, Robert F. Rathbone, Cassandra Hill
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Publication number: 20230069660Abstract: Polymer composite materials and methods of preparation are discussed. The composite material may comprise a polyurethane foam and a plurality of inorganic particles dispersed in the polyurethane foam. The composite material may have moisture movement properties, such that (a) a sample of the composite material having a length of 48 inches has a moisture movement of less than 0.15% along the length, and/or (b) a sample having a length of 6 inches has a moisture movement of less than 0.8% along the length, when submerged in 45° C. distilled water for 14 days.Type: ApplicationFiled: October 20, 2022Publication date: March 2, 2023Applicant: Westlake Royal Building Products Inc.Inventors: Edward F. CASSIDY, Russell L. HILL, Robert F. RATHBONE, Xi ZHANG, Ying ZHANG, Qi CHEN, Amitabha KUMAR
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Publication number: 20220404677Abstract: Building cladding systems with changeable appearances and methods of use are described. The building cladding system may include a substrate and a coating comprising a switchable material. Varying a voltage, temperature, or wavelength of light on or applied to the coating may change an appearance of the building cladding system.Type: ApplicationFiled: June 16, 2022Publication date: December 22, 2022Applicant: Westlake Royal Building Products Inc.Inventors: Amitabha KUMAR, Andrew B. METZGER
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Publication number: 20220403663Abstract: Building cladding systems with changeable appearances are described. The building cladding system may include a plurality of panels, a substrate, and a controller configured to move the plurality of panels relative to the substrate to change the appearance of the building cladding system, while protecting the substrate. Moving the plurality of panels to change the appearance of the building cladding system may include rotation.Type: ApplicationFiled: June 16, 2022Publication date: December 22, 2022Applicant: Westlake Royal Building Products Inc.Inventor: Amitabha KUMAR
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Patent number: 11518843Abstract: Polymer composite materials and methods of preparation are discussed. The composite material may comprise a polyurethane foam and a plurality of inorganic particles dispersed in the polyurethane foam. The composite material may have moisture movement properties, such that (a) a sample of the composite material having a length of 48 inches has a moisture movement of less than 0.15% along the length, and/or (b) a sample having a length of 6 inches has a moisture movement of less than 0.8% along the length, when submerged in 45° C. distilled water for 14 days.Type: GrantFiled: February 26, 2019Date of Patent: December 6, 2022Assignee: Westlake Royal Building Products Inc.Inventors: Edward F. Cassidy, Russell L. Hill, Robert F. Rathbone, Xi Zhang, Ying Zhang, Qi Chen, Amitabha Kumar
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Publication number: 20220177637Abstract: Polyurethane foams and methods of manufacturing are described herein. The foam can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; and (b) a filler. The amount of filler in the foam can be from 50 to 90% by weight, based on the total weight of the foam. The filler can include a plurality of fibers and/or a particulate filler. The polyurethane foams described herein are made without adding a surfactant to the reaction mixture. The density of the polyurethane foam can be at least 5 lb/ft3.Type: ApplicationFiled: November 10, 2021Publication date: June 9, 2022Applicant: WESTLAKE ROYAL BUILDING PRODUCTS INC.Inventors: Hamed LAKROUT, Russ MAJORS, Brian SHAW, Guy CROCCO, Li AI, Amitabha KUMAR, Russell HILL
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Publication number: 20220162487Abstract: Dust suppression agents and methods of use, e.g., to reduce operator exposure to particulate matter released during machining of a material, are described. The method may include providing a retained dust suppression agent proximate to a surface of the material and machining the material at the surface with a tool having a mechanized motion. The mechanized motion of the tool may release at least a portion of the retained dust suppression agent to reduce operator exposure to respirable particulate matter from the material as compared to machining the material at the surface absent the retained dust suppression agent.Type: ApplicationFiled: March 19, 2020Publication date: May 26, 2022Applicant: WESTLAKE ROYAL ROOFING LLCInventors: Hamed MARAGHECHI, Matthew Yatco MENESES, Amitabha KUMAR, Russell L. HILL
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Patent number: 11198753Abstract: Polyurethane foams and methods of manufacturing are described herein. The foam can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; and (b) a filler. The amount of filler in the foam can be from 50 to 90% by weight, based on the total weight of the foam. The filler can include a plurality of fibers and/or a particulate filler. The polyurethane foams described herein are made without adding a surfactant to the reaction mixture. The density of the polyurethane foam can be at least 5 lb/ft3.Type: GrantFiled: May 23, 2016Date of Patent: December 14, 2021Assignee: Westlake Royal Building Products Inc.Inventors: Hamed Lakrout, Russ Majors, Brian Shaw, Guy Crocco, Li Al, Amitabha Kumar, Russell Hill
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Patent number: 11174372Abstract: Polyurethane composites comprising non-silane treated glass fibers and methods of manufacturing are described herein. The polyurethane composites can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) a filler; and (c) non-silane treated glass fibers. In some instances, none of the glass fibers in the polyurethane composites are silane treated. The polyurethane composites comprising the non-silane treated glass fibers can have a flexural strength that is greater than the flexural strength of an identical composition wherein the non-silane treated glass fibers are replaced with silane-treated glass fibers. Articles comprising the polyurethane composites are also disclosed herein.Type: GrantFiled: March 13, 2017Date of Patent: November 16, 2021Assignee: BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITEDInventors: Amitabha Kumar, Li Ai, Russell Hill, Cassandra Hill
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Publication number: 20210237313Abstract: Cutting apparatuses and methods of use thereof are discussed. For example, the cutting apparatus may include a chassis with one or more substrate interfaces and a scribe guide. The cutting apparatuses also may include a plurality of support pistons, a deformable support, a locking mechanism, and/or an anchor extension. The support pistons may be adjustable to generally conform to a substrate, such as a non-planar substrate.Type: ApplicationFiled: January 28, 2021Publication date: August 5, 2021Applicant: Boral IP Holdings (Australia) Pty LimitedInventors: William E. JACKSON, II, Jacob MYERS, Russell L. HILL, Amitabha KUMAR, Russ K. MAJORS, Daniel GENORD, Grey PARKER
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Publication number: 20210187925Abstract: Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforcement opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.Type: ApplicationFiled: April 15, 2016Publication date: June 24, 2021Applicant: Boral IP Holdings (Australia) Pty LimitedInventors: Russell HILL, Amitabha KUMAR, Hamed LAKROUT, Li AI, Russ MAJORS, Brian SHAW, Robert F. RATHBONE, Cassandra HILL
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Publication number: 20210146655Abstract: Disclosed herein are organic-inorganic composite materials. Also disclosed herein are organic-inorganic composite materials including polymer substrates with at least one cementitious layer comprising inorganic fibers and organic fibers. Also disclosed herein are organic-inorganic composite materials including polymer substrates with at least one cementitious layer comprising fibers of varying length and diameter. Also disclosed herein are organic-inorganic composite materials including polymer substrates with at least one cementitious layer comprising a plurality of fibers having an average diameter of 7 microns or greater. Also disclosed herein are methods of making and using the same.Type: ApplicationFiled: June 27, 2018Publication date: May 20, 2021Applicant: BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITEDInventors: Amitabha KUMAR, Cassandra HILL, Li Al, Russell L. HILL
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Patent number: 10941292Abstract: Polyurethane composites having improved mechanical strength and linear coefficient of thermal expansion (LCTE) and methods of manufacturing are described herein. The composites can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) a filler in an amount of from greater than 50% to 90% by weight, based on the total weight of the polyurethane composite, (c) from 0.25% to 10% by weight, based on the total weight of the composite, of glass fibers; and (d) from 0.025% to 5% by weight, based on the total weight of the composite, of polyester fibers. The polyester fibers can have an average aspect ratio of length to diameter of from 5:1 to 600:1. The LCTE (?40° C. to 70° C.) of the polyurethane composite can be 2.2×10-5/° C. or less.Type: GrantFiled: September 29, 2016Date of Patent: March 9, 2021Assignee: Boral IP Holdings (Australia) PTY LimitedInventors: Amitabha Kumar, Cassandra Hill, Li Al
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Publication number: 20200377425Abstract: Disclosed herein are composite materials, including composite building materials, comprising a polyurethane composite core in physical communication with a cementitious layer. Also disclosed are methods for producing the composite materials.Type: ApplicationFiled: November 28, 2017Publication date: December 3, 2020Inventors: Amitabha KUMAR, Cassandra HILL, Li AI, Russell HILL
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Publication number: 20200317851Abstract: Polyurethane foams and methods of manufacturing are described herein. The foam can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; and (b) a filler. The amount of filler in the foam can be from 50 to 90% by weight, based on the total weight of the foam. The filler can include a plurality of fibers and/or a particulate filler. The polyurethane foams described herein are made without adding a surfactant to the reaction mixture. The density of the polyurethane foam can be at least 5 lb/ft3.Type: ApplicationFiled: May 23, 2016Publication date: October 8, 2020Applicant: BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITEDInventors: Hamed LAKROUT, Russ MAJORS, Brian SHAW, Guy CROCCO, Li AL, Amitabha KUMAR, Russell HILL
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Publication number: 20200010647Abstract: Polyurethane composites comprising non-silane treated glass fibers and methods of manufacturing are described herein. The polyurethane composites can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) a filler; and (c) non-silane treated glass fibers. In some instances, none of the glass fibers in the polyurethane composites are silane treated. The polyurethane composites comprising the non-silane treated glass fibers can have a flexural strength that is greater than the flexural strength of an identical composition wherein the non-silane treated glass fibers are replaced with silane-treated glass fibers. Articles comprising the polyurethane composites are also disclosed herein.Type: ApplicationFiled: March 13, 2017Publication date: January 9, 2020Applicant: BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITEDInventors: Amitabha KUMAR, Li AI, Russell HILL, Cassandra HILL
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Patent number: 10472281Abstract: Polyurethane composites and methods of preparing polyurethane composites are described herein. The polyurethane composite can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) fly ash comprising 50% or greater by weight, fly ash particles having a particle size of from 0.2 micron to 100 microns; and (c) a coarse filler material comprising 80% or greater by weight, filler particles having a particle size of from greater than 250 microns to 10 mm. The coarse filler material can be present in the composite in an amount of from 1% to 40% by weight, based on the total weight of the composite. The weight ratio of the fly ash to the coarse filler material can be from 9:1 to 200:1.Type: GrantFiled: June 29, 2018Date of Patent: November 12, 2019Assignee: BORAL IP HOLDINGS (AUSTRALIA) PTY LIMITEDInventors: Amitabha Kumar, Li Al, Russell Hill