Patents by Inventor Daniel R. Alexander
Daniel R. Alexander 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: 11952475Abstract: A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.Type: GrantFiled: September 12, 2018Date of Patent: April 9, 2024Assignee: Celgard, LLCInventors: Takahiko Kondo, Masaaki Okada, Stefan Reinartz, Daniel R. Alexander
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Patent number: 11949124Abstract: New and/or improved coatings, layers or treatments for porous substrates, including battery separators or separator membranes, and/or coated or treated porous substrates, including coated battery separators, and/or batteries or cells including such coatings or coated separators, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, new or improved coatings for porous substrates, including battery separators, which comprise at least a matrix material or a polymeric binder, and heat-resistant particles with additional additives, materials or components, and/or to new or improved coated or treated porous substrates, including battery separators, where the coating comprises at least a matrix material or a polymeric binder, and heat-resistant particles with additional additives, materials or components are disclosed.Type: GrantFiled: January 4, 2019Date of Patent: April 2, 2024Assignee: Celgard, LLCInventors: Zhengming Zhang, Michael B. Lane, Insik Jeon, Edward Kruger, Xiang Yu, Ronnie E. Smith, Stefan Reinartz, Junqing Ma, Daniel R. Alexander
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Patent number: 11909006Abstract: In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.Type: GrantFiled: February 24, 2023Date of Patent: February 20, 2024Assignee: Celgard, LLCInventors: Paul M. Halmo, Xiaomin Zhang, Paul D. Vido, Zhengming Zhang, Lie Shi, Daniel R. Alexander, Jill V. Watson
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Publication number: 20230381720Abstract: In at least one embodiment, a microporous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The microporous membrane may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The microporous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The microporous membrane may be flat or may have ribs. The microporous membrane may include at least one scrim component. A method for forming the microporous membrane is also disclosed.Type: ApplicationFiled: August 15, 2023Publication date: November 30, 2023Inventors: Matthew Stainer, Eric H. Miller, Matt J. Wolski, Tyler Munhollon, Daniel R. Alexander, Gary L. Fulkerson
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Patent number: 11766642Abstract: In at least one embodiment, a microporous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The microporous membrane may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The microporous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The microporous membrane may be flat or may have ribs. The microporous membrane may include at least one scrim component. A method for forming the microporous membrane is also disclosed.Type: GrantFiled: October 9, 2018Date of Patent: September 26, 2023Assignee: Daramic, LLCInventors: Matthew Stainer, Eric H. Miller, Matt J. Wolski, Tyler Munhollon, Daniel R. Alexander, Gary L. Fulkerson
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Publication number: 20230238587Abstract: Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendaring step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength.Type: ApplicationFiled: January 27, 2023Publication date: July 27, 2023Inventors: Kristoffer K. Stokes, William John Mason, Kang Karen Xiao, Xiaomin Zhang, Barry J. Summey, Robert Moran, Jeffrey Gordon Poley, Brian R. Stepp, Changqing Wang Adams, Daniel R. Alexander, Shante P. Williams, Andrew Edward Voss, Douglas George Robertson
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Publication number: 20230231231Abstract: Disclosed herein is a battery separator comprising two porous or microporous layers and a heat-resistant layer between the two porous or microporous layers. The heat-resistant layer may be a ceramic layer or a layer containing a high melt integrity polymer. In some embodiments, the battery separator may further comprise one or more adhesive layers between the two porous or microporous layers. The resulting battery separator may be safer, have more integrity, and/or have shutdown function.Type: ApplicationFiled: June 4, 2021Publication date: July 20, 2023Inventors: Stefan Reinartz, James Rapley, Daniel R. Alexander
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Publication number: 20230219330Abstract: In at least one embodiment, a building material comprising a porous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The building material may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The porous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The porous membrane may be flat or may have ribs. The porous membrane may include at least one scrim component.Type: ApplicationFiled: May 14, 2021Publication date: July 13, 2023Inventors: Matthew Stainer, Eric H. Miller, Matt J. Wolski, Tyler Munhollon, Daniel R. Alexander, Gary L. Fulkerson
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Publication number: 20230207892Abstract: In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.Type: ApplicationFiled: February 24, 2023Publication date: June 29, 2023Inventors: Paul M. Halmo, Xiaomin Zhang, Paul D. Vido, Zhengming Zhang, Lie Shi, Daniel R. Alexander, Jill V. Watson
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Publication number: 20230180872Abstract: Materials for personal protective equipment (PPE) that is water resistant, blood resistant, and virus resistant are disclosed. The materials described herein are also highly breathable adding to the comfort of PPE made from these materials. The materials for PPE described herein contain one or more uniaxially or biaxially stretched microporous films.Type: ApplicationFiled: April 19, 2021Publication date: June 15, 2023Inventors: Barry J. Summey, Eric R. White, Ronnie E. Smith, David Anzini, Daniel R. Alexander, Anna Verderame, Tamara A. Taylor
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Publication number: 20230155253Abstract: Disclosed herein is an asymmetric porous membrane having two outer layers and at least one inner layers. The outer layers may be asymmetric in thickness, pore size, porosity, tortuosity, or combinations thereof. In some embodiments, the asymmetric porous membrane has two outer layers and no inner layers. The thickness of one of the outer layers to the other of the outer layers is from 1.1 to 25:1, preferably from 1.1:1 to 10:1, 1.1:1 to 5:1 or 4:1 to 10:1. In some embodiments, both outer layers are PP-containing layers and in some embodiments, one outermost layer may be a PE-containing layer and the other may be a PP-containing layer. The asymmetric porous membrane may be used as or to make a battery separator. In some embodiments, the battery separator may include an asymmetric porous membrane having the thinner of the two outer layers or the layer facing the anode coated with a coating such as a ceramic coating. The battery separator may be used in a liquid electrolyte secondary battery.Type: ApplicationFiled: April 16, 2021Publication date: May 18, 2023Inventors: Wenbin Yin, Daniel R. Alexander, Stefan Reinartz, Kang Karen Xiao, Hisashi Takeda, Allen M. Donn
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Publication number: 20230146975Abstract: A wide microporous film comprises one or more layers comprising a polyolefin; wherein the film has a width of a least 40 inches, at least 45 inches, at least 50 inches, at least 55 inches, at least 60 inches, at least 65 inches, or at least 70 inches.Type: ApplicationFiled: May 18, 2021Publication date: May 11, 2023Inventors: David Anzini, Eric R. White, Barry J. Summey, Daniel R. Alexander
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Patent number: 11594765Abstract: In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.Type: GrantFiled: September 7, 2021Date of Patent: February 28, 2023Assignee: Celgard, LLCInventors: Paul M. Halmo, Xiaomin Zhang, Paul D. Vido, Zhengming Zhang, Lie Shi, Daniel R. Alexander, Jill V. Watson
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Patent number: 11569549Abstract: Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendering step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength.Type: GrantFiled: September 14, 2020Date of Patent: January 31, 2023Assignee: Celgard, LLCInventors: Kristoffer K. Stokes, William John Mason, Kang Karen Xiao, Xiaomin Zhang, Barry J. Summey, Robert Moran, Jeffrey Gordon Poley, Brian R. Stepp, Changqing Wang Adams, Daniel R. Alexander, Shante P. Williams, Andrew Edward Voss, Douglas George Robertson
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Publication number: 20210408613Abstract: In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.Type: ApplicationFiled: September 7, 2021Publication date: December 30, 2021Inventors: Paul M. Halmo, Xiaomin Zhang, Paul D. Vido, Zhengming Zhang, Lie Shi, Daniel R. Alexander, Jill V. Watson
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Publication number: 20210296737Abstract: Disclosed herein are exemplary embodiments of improved separators for batteries, particularly lead acid batteries, and more particularly enhanced flooded lead acid batteries, improved lead acid batteries incorporating the improved separators, systems incorporating the improved separators and/or batteries, and methods related thereto. The improved separators may contain a cross-linkable component and a surfactant, agent, or additive. Furthermore, the cross-linkable component may be at least partially cross-linked. In addition, the separator may further be composed of a polymer and a filler, and may be additionally paired with a fibrous mat.Type: ApplicationFiled: July 22, 2019Publication date: September 23, 2021Inventors: James P. Perry, Neal M. Golovin, Daniel R. Alexander, Eric Killmeier, J. Kevin Whear
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Patent number: 11114702Abstract: In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.Type: GrantFiled: July 8, 2019Date of Patent: September 7, 2021Assignee: Celgard, LLCInventors: Paul M. Halmo, Xiaomin Zhang, Paul D. Vido, Zhengming Zhang, Lie Shi, Daniel R. Alexander, Jill V. Watson
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Publication number: 20210184312Abstract: Disclosed herein are soluble content absorbent glass mats or AGM separators for VRLA, AGM, or VRLA AGM batteries. Such glass mats may be prepared from insoluble glass fibers blended with soluble content materials. Upon exposure to a suitable solvent, the dissolving or solvating of the soluble content produces voids within the glass mat. The voids enhance the absorption of the solvent within the glass mat. The soluble content may be acid-soluble glass fibers or microfibers.Type: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Inventors: Ahila Krishnamoorthy, Daniel R. Alexander
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Publication number: 20210143511Abstract: New and/or improved coatings, layers or treatments for porous substrates, including battery separators or separator membranes, and/or coated or treated porous substrates, including coated battery separators, and/or batteries or cells including such coatings or coated separators, and/or related methods including methods of manufacture and/or of use thereof are disclosed. Also, new or improved coatings for porous substrates, including battery separators, which comprise at least a matrix material or a polymeric binder, and heat-resistant particles with additional additives, materials or components, and/or to new or improved coated or treated porous substrates, including battery separators, where the coating comprises at least a matrix material or a polymeric binder, and heat-resistant particles with additional additives, materials or components are disclosed.Type: ApplicationFiled: January 4, 2019Publication date: May 13, 2021Inventors: Zhengming Zhang, Michael B. Lane, Insik Jeon, Edward Kruger, Xiang E. Yu, Ronnie E. Smith, Stefan Reinartz, Junqing Ma, Daniel R. Alexander
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Publication number: 20210113970Abstract: In at least one embodiment, a microporous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The microporous membrane may be used in building applications, including as or as part of a building wrap, a rain screen, a roofing underlayment, a flashing, a sound proofing material, or an insulation material. The microporous membrane may include at least one thermoplastic polymer, at least one filler, and at least one processing oil. The microporous membrane may be flat or may have ribs. The microporous membrane may include at least one scrim component. A method for forming the microporous membrane is also disclosed.Type: ApplicationFiled: October 9, 2018Publication date: April 22, 2021Applicant: Daramic, LLCInventors: Matthew STAINER, Eric H. MILLER, Matt J. WOLSKI, Tyler MUNHOLLON, Daniel R. ALEXANDER, Gary L. FULKERSON