Patents Assigned to DuPont Safety & Construction, Inc.
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Patent number: 11962025Abstract: A laminate useful as cell-to-cell battery insulation, the laminate having an insulating area and a periphery seal area, the insulating area comprising, in order: a first outer layer of paper comprising aramid material and mica; an inner layer comprising a felt or paper of inorganic short fibers; and a second outer layer of paper comprising aramid material and mica; the periphery seal area being void of the inner layer and being formed by adhering the first and second outer layers of paper to one another; wherein the periphery seal area extends around the periphery of the insulating area.Type: GrantFiled: January 20, 2020Date of Patent: April 16, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventor: Byoung Sam Kang
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Publication number: 20240119581Abstract: An example system for determining construction installation accuracy is provided. The system includes a database configured to electronically store data. The data includes an installation detection model trained based on historical construction installation data. The system includes a processing device in communication with the database. The processing device is configured to receive as input an image associated with a construction installation, electronically detect one or more components installed in the construction installation depicted in the image, execute the installation detection model to determine an accuracy of the installed one or more components, and generate a marker in the image to identify an improperly installed component of the one or more components.Type: ApplicationFiled: October 6, 2023Publication date: April 11, 2024Applicants: DUPONT SAFETY AND CONSTRUCTION, INC., DDP SPECIALTY ELECTRONIC MATERIALS US, LLCInventors: William Ranson, Michael Dubnansky, III, Jessica Robinson, Samantha Kambo, Nicolae Iovanac
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Publication number: 20240117627Abstract: An article comprises a tube and at least one thermoplastic pouch inserted within the tube wherein the tube comprises an upper section, a lower section, an inner section and an outer section, the tube comprises an inner layer and an outer layer, the inner layer being a permeable membrane that is permeable to vapors but impermeable to liquids and the outer layer being a nonwoven fabric, a microporous film, an SMS sheet or an SMMS sheet. In the central area of the upper section 13 and/or the lower section 14 of the tube, at least one slot is cut into the outer layer 18 to reveal the inner layer 17, the slot extending at least partially along the tube length L, the pouch is located within the tube such that it contacts the lower and inner sections of the tube and the pouch contains a foamable composition.Type: ApplicationFiled: April 17, 2023Publication date: April 11, 2024Applicants: DUPONT SAFETY & CONSTRUCTION, INC., DDP Specialty Electronic Materials US, LLC.Inventors: Eric Huebsch, Lars Massueger, Cedric Thomi
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Patent number: 11904280Abstract: The invention relates to filtration system (20), comprising a tank (40) filled at least partly with water to be filtered, and at least one filtration module (30), the at least one filtration module (30) comprising at least one filter membrane (10) for filtering the water comprising a substrate (12) which is penetrated by at least one capillary (16), and at least one filtrate pipe (32) for drawing filtered water out of the tank (40), whereat the at least one filtration module (30) is arranged in the tank (40) such that the at least one filter membrane (10) is submerged at least partly in the water to be filtered. The at least one filtration module (30) is designed and arranged such that water to be filtered flows into the at least one capillary (16) and from the at least one capillary (16) through the substrate (12) into the filtrate pipe (32).Type: GrantFiled: May 29, 2019Date of Patent: February 20, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventor: Martin Heijnen
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Publication number: 20240051258Abstract: A composite sheet comprises a textile component having a first surface and a second surface and a first polymeric coating on the first surface of the textile component wherein the textile component further comprises at least one woven fabric of continuous filament yarns, the fabric having an areal weight of from about 70 to about 508 gsm, and a nonwoven fabric comprising a blend of discontinuous fibers of oxidized polyacrylonitrile fibers and silica fibers wherein the oxidized polyacrylonitrile fibers are present in an amount of from about 30 to about 70 weight percent of the combined weight of the oxidized polyacrylonitrile fibers and silica fibers and, optionally, wherein the nonwoven fabric is mechanically attached to woven fabric.Type: ApplicationFiled: August 9, 2022Publication date: February 15, 2024Applicant: DUPONT SAFETY & CONSTRUCTION, INC.Inventor: Dariusz W. Kawka
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Publication number: 20240051261Abstract: A composite sheet comprises a textile component having a first surface and a second surface and a first polymeric coating on the first surface of the textile component wherein the textile component further comprises a first structure of at least one woven fabric of continuous filament yarns, the fabric having an areal weight of from about 70 to about 508 gsm, a second structure of a nonwoven fabric comprising a blend of discontinuous fibers of oxidized polyacrylonitrile fibers and silica fibers wherein the oxidized polyacrylonitrile fibers are present in an amount of from about 30 to about 70 weight percent of the combined weight of the oxidized polyacrylonitrile fibers and silica fibers, a third structure of at least one woven fabric of continuous filament yarns the fabric having an areal weight of from about 70 to about 508 gsm and, optionally, wherein the nonwoven fabric of the second structure is mechanically attached to at least one of the other fabric structures by an attachment means.Type: ApplicationFiled: August 9, 2022Publication date: February 15, 2024Applicant: DUPONT SAFETY & CONSTRUCTION, INC.Inventor: Dariusz Wlodzimierz Kawka
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Publication number: 20240043677Abstract: A composition, made from recycled solid surface material or articles, that is suitable for making solid surface materials or articles, and a solid surface material or article made therefrom, the composition comprising a matrix resin of unsaturated polyester resin, inorganic filler particles, ground solid surface primary particles, ground solid surface secondary particles, and, optionally, solid surface dust particles. The composition is especially useful in making three-dimensional, rigid-surface, polymeric solid surface material and articles that are free of objectionable surface voids and have a smooth and stable continuous surface.Type: ApplicationFiled: July 12, 2023Publication date: February 8, 2024Applicant: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Thi Hoang Ha Nguyen, Keith William Pollak
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Patent number: 11866558Abstract: A sheet comprising a plexifilamentary film-fibril network consisting essentially of high density polyethylene in an overlapping multi-directional configuration, the sheet, as-produced from a spin cell, having a normalized Frazier air permeability of between 0.002 and 0.2 m3/m2·minute at 50 gsm, a BET surface area of between 9 and 20 m2/gm, and a normalized hydrohead of between 150 and 250 cm at 50 gsm, wherein the plexifilamentary film-fibril network in an overlapping multi-directional configuration is flash-spun from a spin fluid comprising polymer and spin agent, the spin fluid temperature being 190° C. or greater, the spin agent comprising dichloromethane, the spin fluid having a polymer concentration of 12 to 14 weight percent.Type: GrantFiled: January 11, 2021Date of Patent: January 9, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jan Van Meerveld, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Patent number: 11834389Abstract: A method of making N-(2,4-dinitrophenyl)-4-nitrobenzamide from a mixture of 2,4-dinitroaniline, 4-nitrobenzoyl chloride, and solid acid catalyst in an organic solvent, wherein the solid acid catalyst is not soluble in the organic solvent, the solid acid catalyst being an acidic clay, an ion exchange resin, a beta zeolite, a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer, or some mixture of these.Type: GrantFiled: May 18, 2021Date of Patent: December 5, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: James A. Schultz, Sourav Kumar Sengupta, Venkateswara Rao Surisetty
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Patent number: 11821220Abstract: A composite structural board having a structural board and a water-resistant barrier (WRB) sheet, and a wall system comprising same, wherein a face of the structural board is discontinuously attached to the inner face of the WRB sheet solely by a first adhesive, the WRB sheet fully covering the face of the structural board; wherein the unattached areas between the face of the structural board and the inner face of the WRB sheet define paths by which a liquid can move between the face of the structural board and the inner face of the WRB sheet; in some instances the WRB sheet material extends beyond at least one edge of the structural board forming a WRB sheet flap.Type: GrantFiled: August 14, 2020Date of Patent: November 21, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Wazir Nobbee, Jesse C Thrower, II, James Dean Katsaros, Stephane Costeux, John Neill, William Brian Lieburn, Bryn Thomas
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Patent number: 11806557Abstract: A protective garment comprising a hood with a face area, the face area provided with an elastomeric interface having an opening for engaging and demountably sealing a full-face mask or full-face respirator to the hood, the opening having a forehead edge and the chin edge that are both incurvate edges with respect to the center of the opening, and two cheek edges that are excurvate edges with respect to the center of the opening; the opening further having a centerline horizontal dimension between the first and second cheek edges and a centerline vertical dimension between the forehead edge and the chin edge; the centerline horizontal dimension to centerline vertical dimension aspect ratio being 1.5 or greater.Type: GrantFiled: October 4, 2019Date of Patent: November 7, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventor: Roberta Espinoza Alleyne
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Publication number: 20230340778Abstract: An article comprises a tube and at least one thermoplastic pouch inserted within the tube wherein the tube comprises an upper section, a lower section, an inner section and an outer section, the tube comprises an inner layer and an outer layer, the inner layer being a permeable nonwoven fabric and the outer layer being a semipermeable membrane that is permeable to vapors but impermeable to liquids, the tube has a plurality of holes that penetrate through the inner and outer layers of the upper section and/or lower section of the tube, the pouch is located within the tube such that it contacts the lower and inner sections of the tube and the pouch contains a foamable composition.Type: ApplicationFiled: April 17, 2023Publication date: October 26, 2023Applicants: DUPONT SAFETY & CONSTRUCTION, INC., DDP Specialty Electronic Materials US, LLC.Inventors: Eric Huebsch, Lars Massueger, Cedric Thomi
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Publication number: 20230340777Abstract: An article 10 comprises a tube and at least one thermoplastic pouch inserted within the tube wherein the tube comprises an upper section, a lower section, an inner section and an outer section, the tube comprises a semi-permeable single layer of a nonwoven sheet of flashspun polyethylene or a microporous film stabilized by an open weave fabric or scrim, the tube has a plurality of holes that penetrate through the tube in the upper section and/or the lower section of the tube, the pouch is located within the tube such that it contacts the lower and inner sections of the tube and the pouch contains a foamable composition.Type: ApplicationFiled: April 17, 2023Publication date: October 26, 2023Applicants: DUPONT SAFETY & CONSTRUCTION, INC., DDP Specialty Electronic Materials US, LLC.Inventors: Eric Huebsch, Lars Massueger, Cedric Thomi
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Publication number: 20230339153Abstract: An article comprises a tube and at least one thermoplastic pouch inserted within the tube wherein the tube comprises an upper section, a lower section, an inner section and an outer section, the tube comprises an inner layer and an outer layer, the inner layer being a semipermeable membrane that is permeable to vapors but impermeable to liquids and the outer layer being a nonwoven fabric, the tube has a plurality of holes that penetrate through the inner and outer layers of the upper section and/or lower section of the tube, the pouch is located within the tube such that it contacts the lower and inner sections of the tube and the pouch contains a foamable composition.Type: ApplicationFiled: April 17, 2023Publication date: October 26, 2023Applicants: DUPONT SAFETY & CONSTRUCTION, INC., DDP Specialty Electronic Materials US, LLC.Inventors: Eric Huebsch, Lars Massueger, Cedric Thomi
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Patent number: 11795704Abstract: A process for covering, protecting and providing access to mate lines during building construction comprising the steps of preparing a vertical and horizontal mate line closure flap, carrying out a vertical and horizontal mate line access process, carrying out a vertical and horizontal mate line closing process, repeating the vertical and horizontal mate line access and closing processes as required, and carrying out a vertical and horizontal mate line sealing process to complete the building weatherization.Type: GrantFiled: February 23, 2022Date of Patent: October 24, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Thomas Matthew Baiada, Wazir Nobbee
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Patent number: 11788234Abstract: An aramid paper suitable for use as electrical insulation comprising a first outer layer and a second outer layer, each of which comprising 70 to 30 weight percent aramid floc and 30 to 70 weight percent aramid fibrids, and each of which being free of mica and having a first face and a second face; an inner layer comprising 50 to 70 weight percent aramid material and 30 to 50 weight percent mica and having a first face and a second face; wherein the first face of the first outer layer is a first outer face of the aramid paper, and the second face of the first outer layer is coextensive with and bound face-to-face with the first face of the inner layer solely by fibrids in the first outer layer and the inner layer; and wherein the first face of the second outer layer is coextensive with and bound face-to-face with the second face of the inner layer solely by fibrids in the second outer layer and the inner layer, and the second face of the second outer layer is a second outer face of the aramid paper; the aramiType: GrantFiled: July 18, 2022Date of Patent: October 17, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Chris Dembrosky, Roger Curtis Wicks
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Patent number: D1022397Type: GrantFiled: February 4, 2022Date of Patent: April 16, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jeffrey Alan Hanks, Kevin Klemmt, Jesse Thompson
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Patent number: D1023508Type: GrantFiled: February 4, 2022Date of Patent: April 23, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jeffrey Alan Hanks, Kevin Klemmt, Jesse Thompson
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Patent number: D1023509Type: GrantFiled: February 4, 2022Date of Patent: April 23, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jeffrey Alan Hanks, Kevin Klemmt, Jesse Thompson
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Patent number: D1023510Type: GrantFiled: February 4, 2022Date of Patent: April 23, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jeffrey Alan Hanks, Kevin Klemmt, Jesse Thompson