Patents Assigned to Propex Operating Company, LLC
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Patent number: 11932754Abstract: The present disclosure provides a geosynthetic. In one embodiment, the geosynthetic contains a composition containing (A) a polypropylene and (B) from greater than 0 wt % to less than 3 wt % of a halogen-free flame retardant, based on the total weight of the composition. In another embodiment, the geosynthetic contains a composition containing (A) a polypropylene and (B) greater than 20 wt % zinc sulfide, based on the total weight of the composition. In another embodiment, the geosynthetic contains a composition containing (A) a polypropylene; (B) a halogen-free flame retardant; and (C) greater than 20 wt % zinc sulfide, based on the total weight of the composition. The composition has a specific gravity greater than 1.00 g/cc.Type: GrantFiled: March 7, 2022Date of Patent: March 19, 2024Assignee: Propex Operating Company, LLCInventors: Chastity Adkins, Drew Loizeaux, Scott Manning, Lee Pierce
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BRACE ASSEMBLY FOR A GEOSYNTHETIC WRAPPED SYSTEM USED TO CONSTRUCT STABILIZED EARTH WALLS AND SLOPES
Publication number: 20240003111Abstract: A bracing assembly for a geosynthetic wrapped system is provided. The bracing assembly includes a standing brace bar, a bottom brace bar, and a cross brace bar having different configurations to facilitate both easy and mistake free assembly of the bracing assembly. Furthermore, the standing brace bar and the bottom brace bar include guide tips that are sized and shaped to direct insertion of the standing brace bar and the bottom brace bar respectively into a weave of a geotextile fabric material such that a first connector of the bottom brace bar and a first connection slot of the standing brace bar are aligned together and with a fold line of the geotextile fabric material.Type: ApplicationFiled: September 15, 2023Publication date: January 4, 2024Applicant: Propex Operating Company, LLCInventors: Chastity ADKINS, Scott Manning, Drew Loizeaux -
Brace assembly for a geosynthetic wrapped system used to construct stabilized earth walls and slopes
Patent number: 11840816Abstract: A bracing assembly for a geosynthetic wrapped system is provided. The bracing assembly includes a standing brace bar, a bottom brace bar, and a cross brace bar having different configurations to facilitate both easy and mistake free assembly of the bracing assembly. Furthermore, the standing brace bar and the bottom brace bar include guide tips that are sized and shaped to direct insertion of the standing brace bar and the bottom brace bar respectively into a weave of a geotextile fabric material such that a first connector of the bottom brace bar and a first connection slot of the standing brace bar are aligned together and with a fold line of the geotextile fabric material.Type: GrantFiled: April 29, 2022Date of Patent: December 12, 2023Assignee: Propex Operating Company, LLCInventors: Chastity Adkins, Scott Manning, Drew Loizeaux -
Patent number: 11479924Abstract: A millable, recyclable, paving fabric interlayer system for the construction and repair of roadways and other load-bearing surfaces and method of using such a fabric is disclosed. The paving fabric includes thermoplastic materials and is combined with asphalt cement to provide a flexible, stress relieving, waterproofing layer for roadways. Because of the thickness and asphalt cement absorption of the fabric, the system provides a stress absorbing interlayer to resist fatigue and reflective cracking in pavements. The system also acts as an effective moisture barrier due to the enhanced capability to retain sufficient asphalt cement when paved onto a roadway. Such a system has the required strength and elongation to be installed on smooth or milled surfaces yet is easily milled and recycled owing to the uniquely engineered tensile and tear strengths of the fabric.Type: GrantFiled: January 22, 2019Date of Patent: October 25, 2022Assignee: PROPEX OPERATING COMPANY, LLCInventors: Mark Lee Marienfeld, Noah John Nichols, Gregory Harding Rader
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Patent number: 11464176Abstract: This application discloses a geotextile-based structure for soil stabilization, erosion control, and vegetation-growth enhancement that is made from a cage having a hollow interior lined with a geotextile fabric designed to retain fine materials, which cage is attached to a geotextile mat capable of supporting vegetation.Type: GrantFiled: March 28, 2019Date of Patent: October 11, 2022Assignee: PROPEX OPERATING COMPANY, LLCInventors: D. Scott Manning, R. Lee Pierce
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Patent number: 11124940Abstract: An internally braced synthetic mattress is a geosynthetic structure made of a geosynthetic material. The structure has a bottom side, a top side and at least one upright side joining at least a portion of the bottom side and top side. The at least one upright side is formed by an upright fold of the geosynthetic material. A horizontal bar is woven through a portion of the bottom side of the geosynthetic structure and joined with an upright bar and a diagonal bar to form at least one angle brace to support at least a portion of the geosynthetic structure. The geosynthetic structure contains a filler to prevent/reduce erosion.Type: GrantFiled: March 23, 2020Date of Patent: September 21, 2021Assignee: PROPEX OPERATING COMPANY, LLCInventors: D. Scott Manning, Drew Loizeaux, Chastity Adkins
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Publication number: 20210008850Abstract: A process for the production of a polymeric article directed to (a)forming apply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii)a second layer of a polymeric material; (iii)a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b)subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the firsts layer to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c)cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.Type: ApplicationFiled: July 28, 2020Publication date: January 14, 2021Applicant: Propex Operating Company, LLCInventors: Ian MacMillan WARD, Peter John HINE, Keith Norris
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Publication number: 20190320599Abstract: This application discloses a geotextile-based structure for soil stabilization, erosion control, and vegetation-growth enhancement that is made from a cage having a hollow interior lined with a geotextile fabric designed to retain fine materials, which cage is attached to a geotextile mat capable of supporting vegetation.Type: ApplicationFiled: March 28, 2019Publication date: October 24, 2019Applicant: Propex Operating Company, LLCInventors: D. Scott Manning, R. Lee Pierce
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Patent number: 10285340Abstract: This application discloses a geotextile-based structure for soil stabilization, erosion control, and vegetation-growth enhancement that is made from a cage having a hollow interior lined with a geotextile fabric designed to retain fine materials, which cage is attached to a geotextile mat capable of supporting vegetation.Type: GrantFiled: February 22, 2018Date of Patent: May 14, 2019Assignee: Propex Operating Company, LLCInventors: D. Scott Manning, R. Lee Pierce
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Publication number: 20190075738Abstract: This application discloses a geotextile-based structure for soil stabilization, erosion control, and vegetation-growth enhancement that is made from a cage having a hollow interior lined with a geotextile fabric designed to retain fine materials, which cage is attached to a geotextile mat capable of supporting vegetation.Type: ApplicationFiled: February 22, 2018Publication date: March 14, 2019Applicant: Propex Operating Company, LLCInventors: D. Scott Manning, R. Lee Pierce
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Publication number: 20180371715Abstract: A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.Type: ApplicationFiled: August 7, 2018Publication date: December 27, 2018Applicant: Propex Operating Company, LLCInventor: Sidney M. Weiser
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Patent number: 10081725Abstract: A woven geotextile fabric derived from beta-nucleated polyolefin yarn or monofilament, the method of manufacture of fabric, and the use of such fabric are disclosed. The yarn is made by compounding one or more polyolefins and a beta-nucleator reagent wherein the compounded mixture is extruded then drawn to at least 9 times its original length. The yarn or monofilament is woven into synthetic fabric useful for roadway construction, embankment stabilization, and mechanically stabilized earth.Type: GrantFiled: March 28, 2011Date of Patent: September 25, 2018Assignee: Propex Operating Company, LLCInventors: Kam Chung Lui, Hugh Chester Gardner
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Patent number: 10066354Abstract: A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.Type: GrantFiled: April 14, 2014Date of Patent: September 4, 2018Assignee: Propex Operating Company, LLCInventor: Sidney M. Weiser
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Publication number: 20180126708Abstract: A process for the production of a polymeric article directed to (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the firsts layer to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.Type: ApplicationFiled: December 18, 2017Publication date: May 10, 2018Applicant: Propex Operating Company, LLCInventors: Ian MacMillan Ward, Peter John Hine, Keith Norris
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Patent number: 9873239Abstract: A process for the production of a polymeric article directed to (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the firsts layer to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.Type: GrantFiled: June 28, 2016Date of Patent: January 23, 2018Assignee: Propex Operating Company, LLCInventors: Ian MacMillan Ward, Peter John Hine, Keith Norris
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Patent number: 9403341Abstract: A process for the production of a polymeric article comprises: (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the fits layer, to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.Type: GrantFiled: September 30, 2014Date of Patent: August 2, 2016Assignee: Propex Operating Company LLCInventors: Ian MacMillan Ward, Peter John Hine, Keith Norris
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Patent number: 8912105Abstract: The invention relates to a trauma pack comprising at least one panel of a plastic material and at least one textile fabric layer affixed to the panel and made of yarns with fibers having a tensile strength of at least 900 MPa, wherein the plastic material of the panel is a self-reinforced thermoplastic material made of filaments, fibers, tapes or strips of a polyolefin polymer, and wherein at least one textile fabric layer is bonded over its entire surface to the self-reinforced thermoplastic material.Type: GrantFiled: June 16, 2006Date of Patent: December 16, 2014Assignees: Propex Operating Company, LLC, Teijin Aramid GmbHInventors: Christian Böttger, Achim Fels, Eckhard Wanscheer
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Patent number: 8747995Abstract: A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.Type: GrantFiled: October 6, 2011Date of Patent: June 10, 2014Assignee: Propex Operating Company, LLCInventor: Sidney M. Weiser
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Patent number: 8500372Abstract: A turf reinforcement mat comprises at least one polymer net layer; a non-woven mat comprising a plurality of multi-dimensional polymer fibers; and, a polymer yarn, stitching the net layer to the non-woven mat. A method for erosion control and revegetation facilitation comprises providing a turf reinforcement mat comprising at least one polymer net layer; a non-woven mat comprising a plurality of multi-dimensional polymer fibers; and, a polymer yarn, stitching the net layer to the non-woven mat; laying the turf reinforcement mat on a section of ground to be reinforced; securing the turf reinforcement mat to the ground; distributing soil and seed onto the turf reinforcement mat such that the section of ground is quickly revegetated and thereby protected from further erosion.Type: GrantFiled: September 13, 2010Date of Patent: August 6, 2013Assignee: Propex Operating Company LLCInventors: Sidney M. Weiser, Patti Weaver, Warren Sickler
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Publication number: 20130029108Abstract: A process for the production of a polymeric article comprises: (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the fits layer, to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.Type: ApplicationFiled: July 30, 2012Publication date: January 31, 2013Applicant: Propex Operating Company LLCInventors: Ian MacMillan Ward, Peter John Hine, Keith Norris