Coating Or Impregnation Is Specified As Microporous But Is Not A Foam Patents (Class 442/77)
  • Patent number: 11380927
    Abstract: Embodiments are directed to composite membranes having: increased volume of the microporous polymer structure relative to the total volume of the PEM; decreased permeance and thus increased selectivity; and lower ionomer content. An increased amount of polymers of the microporous polymer structure is mixed with a low equivalent weight ionomer (e.g., <460 cc/mole eq) to obtain a composite material having at least two distinct materials. Various embodiments provide a composite membrane comprising a microporous polymer structure that occupies from 13 vol % to 65 vol % of a total volume of the composite membrane, and an ionomer impregnated in the microporous polymer structure. The acid content of the composite membrane is 1.2 meq/cc to 3.5 meq/cc, and/or the thickness of the composite membrane is less than 17 microns. The selectivity of the composite membrane is greater than 0.05 MPa/mV, based on proton conductance and hydrogen permeance.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: July 5, 2022
    Assignees: W. L. Gore & Associates, Inc., W. L. Gore & Associates G.K.
    Inventors: Takeyuki Suzuki, Alexander Agapov, Mark Edmundson
  • Patent number: 10940669
    Abstract: Described herein are insulating structures that include at least one microporous layer including a plurality of pores, a porous layer adjacent to the microporous layer, and a monolithic aerogel structure extending through the plurality of pores of the microporous layer and through at least part of the porous layer. The microporous layer filters aerogel dust from cracked or damaged aerogel within the scaffold, slowing or preventing loss of dust from the insulating structures.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: March 9, 2021
    Assignees: W. L. Gore & Associates, Inc., Aspen Aerogels, Inc.
    Inventors: Leslie Rikleen, Michael Magyar, Eric O'Bryan, David Mihalcik, Owen Evans, Nicholas Zafiropoulos, George Gould
  • Patent number: 10785355
    Abstract: A method for applying a screen protector to a cell phone screen protector is provided, including: providing a cell phone screen protector and a cell phone to be applied; cleaning a screen of the cell phone to be applied; tearing off the release liner by the label of the release liner, simultaneously lightening the screen of the cell phone to be applied, and sticking the silicone protective film on the screen, and uncovering the first part via the label of the first part; using a scraping card to scrape slightly from top to bottom; uncovering the second part via the label of the second part, and using the scraping card to scrape slightly from top to bottom; using the scraping card to scrape outwardly along a curved edge of the screen; tearing off the PET release film, and smoothing both sides of the screen.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: September 22, 2020
    Assignee: SHENZHEN KANGCHENGTAI INDUSTRIAL CO., LTD.
    Inventor: Zhaofei Liang
  • Patent number: 10618249
    Abstract: Described herein are aerogel composites. The aerogel composites comprise at least one base layer having a top surface and a bottom surface, the base layer comprising a reinforced aerogel composition which comprises a reinforcement material and a monolithic aerogel framework, a first facing layer comprising a first facing material attached to the top surface of the base layer, and a second facing layer comprising a second facing material attached to the bottom surface of the base layer. At least a portion of the monolithic aerogel framework of the base layer extends into at least a portion of both the first facing layer and the second facing layer. The first facing material and the second facing material each consist essentially of fluoropolymer material.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 14, 2020
    Assignees: W. L. Gore & Associates, Inc., Aspen Aerogels, Inc.
    Inventors: Leslie Rikleen, Michael Magyar, Eric O'Bryan, David Mihalcik, Owen Evans, Nicholas Zafiropoulos, George Gould
  • Patent number: 9070910
    Abstract: According to the present invention, a porous material for a fuel cell electrolyte membrane, wherein at least one strength auxiliary layer is provided inside and/or on the surface of a high porosity layer, the high porosity layer and the strength auxiliary layer constitute a multilayer structure, and the average diameter of pores of the high porosity layer is different from the average diameter of pores of the strength auxiliary layer, is provided. Also, a porous material having high porosity and high strength, which is suitable as a base material for an electrolyte membrane of a solid polymer fuel cell, is provided and a high-performance fuel cell using such material is realized.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: June 30, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Harada
  • Patent number: 9040436
    Abstract: Laminates are described having a durable outer film surface for use in making lightweight liquidproof articles, including articles of apparel, such as outerwear garments. A method of making the laminate and a lightweight outerwear garment having an abrasion resistant exterior film surface is described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Matthew A. Johnson, Edward C. Gunzel
  • Patent number: 9029277
    Abstract: A breathable laminate has a liquid-resistant backing film layer having varied vapor permeability that includes breathable thinned localized regions and thicker non-breathable regions, wherein the film layer is co-extensively directly joined with a liquid- and vapor-permeable nonwoven fabric. The breathable laminate can have unidirectional air permeability. The present invention also relates to disposable apparel and absorbent products which incorporate the breathable laminate, and methods of making the breathable laminate.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: May 12, 2015
    Assignee: Polymer Group, Inc.
    Inventor: Mou Chung Ngai
  • Patent number: 9006117
    Abstract: Laminates are described having a durable outer film surface for use in making lightweight liquidproof articles of apparel, such as outerwear garments. A method of making the laminate and a lightweight outerwear garment having an abrasion resistant exterior film surface is described.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: April 14, 2015
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Matthew A. Johnson, Edward C. Gunzel
  • Patent number: 8993081
    Abstract: A method of manufacturing a reinforced tubular membrane comprises the steps of manufacturing the tubular support from monofilament thread, impregnating the support with membrane dope and adjusting the inner and the outer diameter of the membrane. A coating apparatus comprises a casting bob and an orifice to adjust respectively the inner and outer diameter of the membrane. A tubular reinforced polymeric membrane comprises a tubular support and membrane substance. The tubular support is made of monofilament thread and has a sufficiently open structure (openings larger than 0.1 mm). Touching and/or engaging parts of the thread may be linked prior to impregnating the support with membrane dope. The support may comprise loops of the monofilament thread, which are also linked.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: March 31, 2015
    Assignee: Vlaamse Instelling Voor Technologish Onderzoek N.V. (VITO)
    Inventors: Wim Doyen, Marc Verbeke, Herman Beckers, Bart Molenberghs, Rob Muyshondt
  • Publication number: 20140360346
    Abstract: The present invention discloses a bulletproof fabric and a body armor manufactured using the same. The bulletproof fabric includes an aramid fabric 10 including wholly aromatic polyamide multifilaments as warps and wefts, a primary water-repellent coating layer 20 formed on the aramid fabric 10, and a secondary water-repellent coating layer 30 formed on the primary water-repellent coating layer 20. The body armor of the present invention has a laminate structure of stacking up 10 to 50 sheets of the above bulletproof fabrics, preferably, further includes an aramid composite pad 40 inserted in a pocket provided at a part of the body armor. According to the present invention, water-repellent properties are excellent to noticeably improve bulletproof performance in a wet state, and specifically, when the body armor has the aramid composite pad 40 inserted therein, rear deformation of the body armor after the bulletproof performance test is considerably reduced.
    Type: Application
    Filed: December 27, 2011
    Publication date: December 11, 2014
    Applicant: KOLON INDUSTRIES, INC
    Inventor: In-Sik Han
  • Patent number: 8552111
    Abstract: A composition comprises a polyvinylchloride homopolymer, a biodegradable plasticizer and either a swelling agent or a carbohydrate coupled to the polyvinylchloride homopolymer or a combination thereof. The composition may further comprise a blowing agent. A coated fabric comprises a textile substrate and a biodegradable coating at least partially coating the textile substrate, wherein the biodegradable coating degrades at least 60% after 28 days under the ASTM D584 standard. A method of making a biodegradable coating comprises providing a polymer and blending a biodegradable plasticizer with the polymer to form a blend. A method of making a coated textile comprises providing a textile and a composition comprising a polymer, a biodegradable plasticizer, and at least one other component; applying the composition to the textile; and curing the composition, thereby making a coated textile.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: October 8, 2013
    Assignee: Kittrich Corporation
    Inventors: Robert F. Weber, Michael Zagryn
  • Patent number: 8497010
    Abstract: A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: July 30, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ioannis V Bletsos, Edmee Lydie Marie-Jeanne Devaquet, Joseph Anthony King, Jr., Michael G Mikhael, Jose Manuel Rodriguez-Parada, Angelo Yializis
  • Patent number: 8431209
    Abstract: A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 30, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ioannis V Bletsos, Edmee Lydie Marie-Jeanne Devaquet, Michael G Mikhael, Jose Manuel Rodrigues-Parada, Angelo Yializis, Joseph Anthony King, Jr.
  • Patent number: 8404330
    Abstract: A durable metallized moisture vapor permeable sheet is formed by coating a moisture vapor permeable sheet with at least one metal coating comprising a layer of a corrosion resistant metal or a plurality of metal layers having differing compositions. The metallized moisture vapor permeable sheet material is suitable for use as a building construction wrap such as roof lining and house wrap, and as EMF radiation shielding material.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ioannis V. Bletsos, Peter Francis Carcia
  • Publication number: 20130022876
    Abstract: The present invention relates to new, improved or modified polymer materials, membranes, substrates, and the like and to new, improved or modified methods for permanently modifying the physical and/or chemical nature of surfaces of the polymer materials, membranes, or substrates for a variety of end uses or applications. For example, one improved method uses a carbene and/or nitrene modifier to chemically modify a functionalized polymer to form a chemical species which can chemically react with the surface of a polymer substrate and alter its chemical reactivity. Furthermore, this invention can be used to produce chemically modified membranes, fibers, hollow fibers, textiles, and the like.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 24, 2013
    Inventors: Kristoffer K. Stokes, Karl F. Humiston
  • Patent number: 8334223
    Abstract: A protective drainage wrap includes a mesh and a coating applied to the mesh. The coating is applied to the mesh to form a plurality of interstices, the interstices being configured to facilitate transfer of water vapor therethrough. The mesh includes material extending in a first direction and in a second direction. The material in the first direction includes a polyolefin, polyester, nylon or combinations thereof and has a first thickness. The material in the second direction includes a polyolefin, polyester, nylon or combinations thereof and has a second thickness. The second thickness is at least about twice the first thickness so as to assist in providing drainage for moisture build-up. The material in the second direction can be yarn. The coating includes a polyolefin, polyester, nylon or combinations thereof. A process for the preparation of the protective drainage wrap is provided.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 18, 2012
    Assignee: Pactiv Corporation
    Inventor: John W. Lubker, II
  • Patent number: 8318615
    Abstract: A launderable and reusable, leak-proof, breathable fabric and, more specifically, a composite fabric comprised of a liquid absorptive layer and a liquid impervious but vapor permeable layer. Such fabric is useful in drawing fluids, such as bodily fluids, away from a source, such as the body, and retaining them within the absorptive layer while evaporation thereof takes place though the vapor permeable layer. This material consists of two juxtaposed layers. The inner layer has the characteristic of being liquid permeable so as to allow the body fluids to flow into it and be absorbed. The outer layer has the characteristic of being liquid impermeable but air or vapor permeable, so that the liquid absorbed in the inner layer does not strike through the outer layer.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: November 27, 2012
    Assignee: Tri-Sis Inc.
    Inventors: Martin Filteau, Rene Nantel, Yun Shao
  • Patent number: 8278228
    Abstract: A sound absorbing material 10 as vehicle exterior equipment according to the present invention includes a non-woven fabric 20 including a main fiber and a binder fiber. In the sound absorbing material 10 as vehicle exterior equipment, powdery resin is applied to the surface 20a of the non-woven cloth 20. The powdery resin and the non-woven fabric 20 are heated, compressed and cooled to form a resin layer 30. The resin layer 30 is porous due to particle residue parts 30b where parts of the powdery resin remain in particulate form. The non-woven fabric 20 of the sound absorbing material 10 as vehicle exterior equipment can be constituted from two types of non-woven fabrics 22, 24 superimposed together.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: October 2, 2012
    Assignee: Marusho Natsuyama Felt Co., Ltd.
    Inventor: Tatsuo Kaneda
  • Patent number: 8247334
    Abstract: A moisture-vapor-permeable and water-resistant fiber involves a layer of base fabric, a moisture-vapor-permeable layer, and a water absorption layer. The moisture vapor permeable layer is obtained by coating or laminating the inner side of the fabric with a moisture-vapor-permeable resin, which prohibits the penetration of the water droplets but allows the penetration of the moisture vapor molecules. The moisture absorption layer with intricate and colorful design is composed of binding resin blended with fiber powder and/or inorganic powder, and which is dot-coated or dot-printed onto the inner side of the moisture-vapor-permeable and water-resistant layer. The fiber powder or inorganic powder is highly hydrophilic and highly absorbent in its moisture absorption ability, which, when the clothes are fabricated, can prevent the penetration of raindrops but allows the transmission of the evaporated vapor of sweat through the fabric. Moreover, it is capable of absorbing plentiful amount of sweat.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: August 21, 2012
    Assignee: G-Fun Industrial Corporation
    Inventors: Chiu-Shiung Tsai, Kun-Lung Chuang, Fong-Ying Tien, Mou-Chuan Huang
  • Patent number: 8222164
    Abstract: A moisture vapor permeable, water impermeable composite sheet material is provided which is suitable for use as a housewrap material, and is also useful for other applications such as tarpaulins, or as covers for automobile, boats, patio furniture or the like. The composite sheet material includes a nonwoven substrate and an extrusion-coated polyolefin film layer overlying one surface of the substrate. The nonwoven substrate is comprised of polymeric fibers randomly disposed and bonded to one another to form a high tenacity nonwoven web. The nonwoven substrate has a grab tensile strength of at least 178 Newtons (40 pounds) in at least one of the machine direction (MD) or the cross-machine direction (CD). The extrusion coated polyolefin film layer is intimately bonded to the nonwoven substrate. The film layer has micropores formed therein to impart to the composite sheet material a moisture vapor transmission rate (MVTR) of at least 35 g/m2/24 hr. at 50% relative humidity and 23° C.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 17, 2012
    Assignee: Fiberweb, Inc
    Inventors: Gary W. Anderson, Susannah D. Gelotte
  • Patent number: 8193105
    Abstract: An allergen-barrier fabric and method of producing the same is provided. The fabric is formed from weaving yarns and processed such that the resulting pore size is less than approximately 1 micron. The finished fabric may also include exhibit consistent pore to pore variability. The finished fabric may exhibit an MVTR of at least 7,000 and a hydrostatic resistance of at least 10,000 mm.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: June 5, 2012
    Assignee: CleanBrands, LLC
    Inventor: Gary Goldberg
  • Publication number: 20120070635
    Abstract: This invention provides a waterproof and moisture-permeable fabric which prevents to lower in a water pressure resistance, repetitively washed. The waterproof and moisture-permeable fabric consists of a body of a fabric and a microporous film of mainly polyurethane which is laid on the body. The microporous film contains 1 to 9 mass % of fluorinated water repellent agent, 0.1 to 2 mass % of oil-soluble fluorinated surfactant and if necessary 3 to 45 mass % of fine silica powders. The waterproof and moisture-permeable fabric is obtained by the following method. After coating a resin compound on the surface of the body, the resin compound is dipped in a coagulating bath to form the microporous film. The resin compound dissolves or disperses mainly polyurethane, 1 to 9 mass % of fluorinated water repellent agent, 0.1 to 2 mass % of oil-soluble fluorinated surfactant and if necessary 3 to 45 mass % of fine silica powders in N,N-dimethylformamide.
    Type: Application
    Filed: July 15, 2011
    Publication date: March 22, 2012
    Inventors: Kiyoshi Nakagawa, Yoshiaki Kurushima, Munemasa Okubo, Kohei Toyofuku, Masahiro Mizuma, Ken Kato
  • Patent number: 8110283
    Abstract: An article includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a catalytically active nanoparticle. An associated method is also provided.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: February 7, 2012
    Assignee: General Electric Company
    Inventors: Vishal Bansal, Benjamin Hale Winkler, Hieu Minh Duong, Tamaki Ryo
  • Patent number: 8058343
    Abstract: Novel aqueous polyurethane dispersions and adhesive films formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether or polyester polyol, a mixture of MDI isomers, and a diol. The adhesive films from such dispersions can be heat-activated for bonding, lamination, and adhesion of textile fabrics, including stretch fabrics.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: November 15, 2011
    Assignee: Invista North America S.àr.l.
    Inventors: Hong Liu, Carmen A Covelli, Douglas K Farmer
  • Patent number: 7972981
    Abstract: A moisture vapor permeable, water impermeable composite sheet material is provided which is suitable for use as a housewrap material, and is also useful for other applications such as tarpaulins, or as covers for automobile, boats, patio furniture or the like. The composite sheet material includes a nonwoven substrate and an extrusion-coated polyolefin film layer overlying one surface of the substrate. The nonwoven substrate is comprised of polymeric fibers randomly disposed and bonded to one another to form a high tenacity nonwoven web. The nonwoven substrate has a grab tensile strength of at least 178 Newtons (40 pounds) in at least one of the machine direction (MD) or the cross-machine direction (CD). The extrusion coated polyolefin film layer is intimately bonded to the nonwoven substrate. The film layer has micropores formed therein to impart to the composite sheet material a moisture vapor transmission rate (MVTR) of at least 35 g/m2/24 hr. at 50% relative humidity and 23° C.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: July 5, 2011
    Assignee: Fiberweb, Inc.
    Inventors: Gary W. Anderson, Susannah D. Gelotte
  • Publication number: 20100255741
    Abstract: A waterproof, vapor-permeable and air-permeable sheet material. The sheet material includes a waterproof microporous polymer substrate and a microporous thermoplastic coating layer attached to the polymer substrate. The thermoplastic coating layer is vapor-permeable and air-permeable. The thermoplastic coating layer is at least partially interpenetrated into pores of the polymer substrate forming an interface that prevents passage of water droplets, while permitting passage of water vapor and air, when a chemical is present on the sheet material that would otherwise cause the polymer substrate to permit passage of water droplets. The interface is resistant to chemical interference with at least the waterproof property of the sheet material.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 7, 2010
    Applicant: BHA Group, Inc.
    Inventors: Yit-Hong Tee, Taher Abujoudeh
  • Patent number: 7805907
    Abstract: A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: October 5, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Ioannis V. Bletsos, Edmee Lydie Marie-Jeanne Devaquet, Joseph Anthony King, Jr., Michael G Mikhael, Jose Manuel Rodriguez-Parada, Angelo Yializis
  • Publication number: 20100223715
    Abstract: A gamma and E-Beam resistant nonwoven web laminate material is provided for use in the industry. The nonwoven web laminate may include at least one layer of a nonwoven material and a second layer of a coating material. The coating material of the nonwoven web laminate material may include a microporous film with water vapor transmission rate of 7500 G/24 hours period.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 9, 2010
    Inventor: Brian W. Lyons
  • Patent number: 7772137
    Abstract: Breathable materials comprise a low-elongation fabric layer and a microporous coating thereon. The microporous coating comprises a crystalline polymer composition and a filler. The materials are suitable for use in various applications including housewrap and other construction embodiments. Methods of making a breathable material comprise extrusion coating a low-elongation fabric layer with a composition comprising a crystalline polymer composition and a filler to form a coating on the low-elongation fabric layer, and incrementally stretching the coated nonwoven layer to render the coating microporous.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: August 10, 2010
    Assignee: Clopay Plastic Products Company, Inc.
    Inventor: Gregory K. Jones
  • Patent number: 7691759
    Abstract: A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert has a breech end, a distal end, and an insert bore, and is configured to be removably housed within a breech portion of the bore of the barrel body. The breech end of the barrel body is configured to attach to a breech end of the paintball gun. The barrel insert collaborates with the barrel body to provide a firing bore for the barrel assembly which guides a paintball fired from the breech end of the gun through the barrel and out the muzzle end of the barrel body. The barrel insert can be constructed having a thin, flexible wall so as to permit lateral deformation of the barrel insert.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 6, 2010
    Assignee: Smart Parts, Inc.
    Inventors: Roderick A. Perry, William Gardner, Jr.
  • Patent number: 7691912
    Abstract: The invention provides reinforced aerogel monoliths as well as fiber reinforced composites thereof for a variety of uses. Compositions and methods of preparing the monoliths and composites are also provided.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: April 6, 2010
    Assignee: Aspen Aerogels, Inc.
    Inventors: Duan Li Ou, George L. Gould
  • Publication number: 20090283480
    Abstract: The invention relates to a porous material comprising a substrate based on at least one organic polymer A and a coating, where vii) the uncoated substrate based on the organic polymer A is macroporous, viii) the surface of the macroporous substrate is coated with a polymer B based on reactive resins, and ix) this coating with a polymer B is nanoporous and the mean diameter of the nanopores is not more than 1000 nm, and recording materials being excepted. The invention also relates to a process for producing the porous material and to the use of the porous material as a filter for gases or liquids. Finally, the invention relates to filters comprising the porous material, and to a process for filtering gases or liquids.
    Type: Application
    Filed: June 6, 2007
    Publication date: November 19, 2009
    Applicant: BASF SE
    Inventors: Volker Schadler, Marc Fricke, Cedric Du Fresne von Hohenesche, Joachim Roser
  • Publication number: 20090117794
    Abstract: A composition for forming an antifogging coating is provided. The composition includes substantially 0.1 to 10 parts by weight of numerous ultrafine particles, substantially 0.1 to 10 parts by weight of a polymeric electrolyte and substantially 80 to 100 parts by weight of water. When a layer of the composition on a material surface is dried, the antifogging coating of super-hydrophilic nanostructure constructed by these ultrafine particles is formed on the material surface.
    Type: Application
    Filed: January 30, 2008
    Publication date: May 7, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hung-Chiao Cheng, Wen-Hann Chou, Ya-Hui Lin, Yu-Ming Wang, Yeu-Kuen Wei
  • Publication number: 20090081911
    Abstract: An antibacterial, waterproof and absorbent composite clothe for making special disposable clothing such as surgical gowns. The composite cloth mainly contains a three-layer flexible laminate, namely a middle layer, an outer layer and an inner layer. The middle layer is substantially waterproof and air breathable. The middle layer has an inner side and an outer side on opposite sides thereof. The outer layer is made of antibacterial non-woven fabric to prevent bacteria from migrating through the cloth and is secured to the outer side of the middle layer. The inner layer is made of absorbent non-woven fabric to absorb sweat and is secured to the inner side of the middle layer.
    Type: Application
    Filed: August 11, 2008
    Publication date: March 26, 2009
    Inventor: Gary Keryi Yang
  • Patent number: 7307031
    Abstract: A breathable composite sheet material, a method for making such a sheet material, and an absorbent article utilizing the sheet material are provided. The composite sheet material is comprised of a thermoplastic film adhered directly to a fibrous substrate. The thermoplastic film comprises at least 50% by weight of a polymer material from the group of block copolyether esters, block copolyether amides and polyurethanes. The substrate comprises a fibrous web of at least 50% by weight of polyolefin polymer synthetic fibers. The composite sheet exhibits a peel strength of at least 0.1 N/cm, a dynamic fluid transmission of less than about 0.75 g/m2 when subjected to an impact energy of about 2400 joules/m2, and a moisture vapor transmission rate, according to the desiccant method, of at least 1500 g/m2/24 hr.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: December 11, 2007
    Assignee: The Procter & Gamble Company
    Inventors: Nora Liu Carroll, Hyun Sung Lim, George Joseph Ostapchenko, Shailaja R. Vaidya, J. Michael McKenna, John Joseph Curro, Gary Dean Lavon, Richard L. Sparks
  • Patent number: 7240371
    Abstract: Novel aqueous polyurethane dispersions and adhesive films formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether or polyester polyol, a mixture of MDI isomers, and a diol. The adhesive films from such dispersions can be heat-activated for bonding, lamination, and adhesion of textile fabrics, including stretch fabrics.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: July 10, 2007
    Assignee: Invista North America S.A.R.L.
    Inventors: Hong Liu, Carmen A. Covelli, Douglas K. Farmer
  • Publication number: 20040171322
    Abstract: Disclosed is an air permeable film united with a nonwoven fabric, consisting of a polymer film having an inorganic material extruded to have a basic weight of 35 g/m2 or less and united to a partial or whole surface of a nonwoven fabric. The nonwoven fabric having a basic weight of 50 g/m2 or less is united to one surface of the extruded polymer film in a melted state, with an air permeable region centering around a drawn mark distributed to the whole surface of a nonwoven fabric-united film rolled and drawn by a press roll. A method of preparing such an air permeable film united with a nonwoven fabric and a device for preparing the same are also described.
    Type: Application
    Filed: March 15, 2004
    Publication date: September 2, 2004
    Inventors: Jae-Hun Shim, Soo Young Lee
  • Patent number: 6777356
    Abstract: The present invention is a luminous fabric and garment that have excellent luminescent properties under conditions of poor lighting, that lose their luminescent properties only slightly due to wear degradation and the like during prolonged use, that have the same color tone and design as regular fabrics and garments during day use, and that possess excellent aesthetic qualities and are free from design limitations.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: August 17, 2004
    Assignee: Japan Gore-Tex, Inc.
    Inventors: Hiroki Sadato, Kiminobu Yamamuro
  • Patent number: 6774071
    Abstract: This invention relates to a low fiber, plyable facer suitable for use in the construction industry, particularly for insulation board manufacture, comprising a dry preformed fiber mat containing a binder for the fibers, preferably a preformed glass mat, coated with a prefoamed composition which contains a polymer latex, a foam sustaining amount of a surfactant and a flame retarding and/or strengthening amount of a mineral filler and also to the use and process for the preparation of the above as well as to a siding underlayment or insulation board having a foamed, thermosetting resin core which is surfaced with said facer as a product for commercial use.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: August 10, 2004
    Assignee: Building Materials Investment Corporation
    Inventors: Charles J. Horner, Jr., William K. Longcor, IV, Lorin J. Lichten
  • Patent number: 6770584
    Abstract: A hybrid insulation material comprises of porous ceramic substrate material impregnated with nanoporous material and method of making the same is the topic of this invention. The porous substrate material has bulk density ranging from 6 to 20 lb/ft3 and is composed of about 60 to 80 wt % silica (SiO2) 20 to 40 wt % alumina (Al2O3) fibers, and with about 0.1 to 1.0 wt % boron-containing constituent as the sintering agent. The nanoporous material has density ranging from 1.0 to 10 lb/ft3 and is either fully or partially impregnated into the substrate to block the pores, resulting in substantial reduction in conduction via radiation and convention. The nanoporous material used to impregnate the fiber substrate is preferably formed from a precursor of alkoxysilane, alcohol, water, and an acid or base catalyst for silica aerogels, and from a precursor of aluminum alkoxide, alcohol, water, and an acid or base catalyst for alumina aerogels.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: August 3, 2004
    Assignee: The Boeing Company
    Inventors: Andrea O. Barney, Vann Heng, Kris Shigeko Oka, Maryann Santos, Alfred A. Zinn, Michael Droege
  • Publication number: 20040029469
    Abstract: A moisture vapor permeable, water impermeable composite sheet material is provided which is suitable for use as a housewrap material, and is also useful for other applications such as tarpaulins, or as covers for automobile, boats, patio furniture or the like. The composite sheet material includes a nonwoven substrate and an extrusion-coated polyolefin film layer overlying one surface of the substrate. The nonwoven substrate is comprised of polymeric fibers randomly disposed and bonded to one another to form a high tenacity nonwoven web. The nonwoven substrate has a grab tensile strength of at least 178 Newtons (40 pounds) in at least one of the machine direction (MD) or the cross-machine direction (CD). The extrusion coated polyolefin film layer is intimately bonded to the nonwoven substrate. The film layer has micropores formed therein to impart to the composite sheet material a moisture vapor transmission rate (MVTR) of at least 35 g/m2/24 hr. at 50% relative humidity and 23° C.
    Type: Application
    Filed: March 11, 2003
    Publication date: February 12, 2004
    Applicant: Reemay, Inc.
    Inventors: Gary W. Anderson, Susannah D. Gelotte
  • Publication number: 20040016502
    Abstract: Breathable materials comprise a low-elongation fabric layer and a microporous coating thereon. The microporous coating comprises a crystalline polymer composition and a filler. The materials are suitable for use in various applications including housewrap and other construction embodiments. Methods of making a breathable material comprise extrusion coating a low-elongation fabric layer with a composition comprising a crystalline polymer composition and a filler to form a coating on the low-elongation fabric layer, and incrementally stretching the coated nonwoven layer to render the coating microporous.
    Type: Application
    Filed: July 18, 2003
    Publication date: January 29, 2004
    Inventor: Gregory K. Jones
  • Patent number: 6632752
    Abstract: An article of clothing has a clothing part adapted to surround and cover a user's body, and a layer of a polymeric adsorbing material applied on the clothing part and formed so as to retain at least some toxic components of a poison gas so as to prevent penetration of the some toxic components to a user's body.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: October 14, 2003
    Assignee: Renal Tech International LLC
    Inventor: James Winchester
  • Patent number: 6602809
    Abstract: A laminate composite material comprises a layer of an open weave supporting fabric having a layer of breathable resin adhered thereto by an extruded layer of a thermoplastic resin blended with a high temperature volatile particulate. The resultant composite material is substantially impervious to air and water and permeable to water vapor and having a water vapor transmission rate exceeding one (1) perm of water vapor.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: August 5, 2003
    Assignee: Tyco Plastic Services AG
    Inventor: Jennifer M. Cabrey
  • Patent number: 6591427
    Abstract: A protective garment such as a glove is knitted from a yarn comprising a heat-resistant core and a core covering comprising a carbon based yarn. The knitted garment is treated (e.g. by heating) to at least partially decompose the carbon based yarn to form activated charcoal in order to provide increased protection against chemical and/or biological risks.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: July 15, 2003
    Assignee: Bennett Safetywear Limited
    Inventor: Brian G. Bennett
  • Publication number: 20030129904
    Abstract: Fabrics having enhanced allergen barrier capabilities are described. The fabrics are woven and calendered, and desirably face finished to provide lightweight, thin fabrics having good aesthetic properties. The fabrics also have good moisture vapor transport characteristics and superior allergen barrier capabilities, and in particular, superior barrier capabilities for cat dander allergen (representing smaller allergen particle size), as well as dust mite allergen. Protective coverings made from the fabrics and methods for their production are also described.
    Type: Application
    Filed: November 13, 1999
    Publication date: July 10, 2003
    Inventors: EARLE WOLYNES, GREGORY DEWAYNE CARR
  • Patent number: 6521552
    Abstract: A water vapor-permeable waterproof fabric free from an environmental pollution problem upon being discarded is formed by coating a substrate fiber fabric with a composite coating layer including a lower layer (A) directly formed on the substrate fabric and an upper layer (B) formed on the lower layer (B), wherein the lower and upper layers are formed from one of polyetherester elastomers different from each other and each containing polyalkylene glycol (PAG) residues, and satisfy the following requirements: (a) in the polyetherester elastomer (PEEA), the polyalkylene glycol residues contain 90% by weight or more of polytetramethylene glycol residues; (b) in the polyetherester elastomer (PEEB), the polyalkylene glycol residues contain 50% by weight or more of polyethylene glycol residues; (c) the thickness of the composite coating layer is 5 to 50 &mgr;m; and (d) the lower layer (A) is in an amount of 5 to 40% by weight based on the total weight of the composite coating layer.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: February 18, 2003
    Assignee: Teijin Limited
    Inventors: Hiroshi Honna, Ryoji Tsukamoto, Makoto Yoshida, Michikage Matsui
  • Publication number: 20030032350
    Abstract: A new foam coated nonwoven fibrous mat having properties particularly suited for a facer on gypsum wallboard, laminates made therefrom and the method of making the mat is disclosed. The mat preferably contains a major portion of glass fibers and a minor portion of a resinous binder. The foam coating is permeable and reduces fiber dust and abrasion experienced in the past with relatively coarse, relatively inexpensive glass fibers in the mat. Contrary to previous methods, the foam coated fibrous mat is made in-line on a wet mat forming production line by applying a wet foam binder onto a wet, fibrous web followed by drying and curing in-line.
    Type: Application
    Filed: August 7, 2001
    Publication date: February 13, 2003
    Inventors: Richard Emil Kajander, Alan Michael Jaffee, Glenda B. Bennett
  • Publication number: 20030032351
    Abstract: This invention relates to a low fiber, plyable facer suitable for use in the construction industry, particularly for insulation board manufacture, comprising a dry preformed fiber mat containing a binder for the fibers, preferably a preformed glass mat, coated with a prefoamed composition which contains a polymer latex, a foam sustaining amount of a surfactant and a flame retarding and/or strengthening amount of a mineral filler and also to the use and process for the preparation of the above as well as to a siding underlayment or insulation board having a foamed, thermosetting resin core which is surfaced with said facer as a product for commercial use.
    Type: Application
    Filed: April 8, 2002
    Publication date: February 13, 2003
    Inventors: Charles J. Horner, William K. Longcor, Lorin J. Lichten
  • Patent number: RE41539
    Abstract: A breathable composite sheet material, a method for making such a sheet material, and an absorbent article utilizing the sheet material are provided. The composite sheet material is comprised of a thermoplastic film adhered directly to a fibrous substrate. The thermoplastic film comprises at least 50% by weight of a polymer material from the group of block copolyether esters, block copolyether amides and polyurethanes. The substrate comprises a fibrous web of at least 50% by weight of polyolefin polymer synthetic fibers. The composite sheet exhibits a peel strength of at least 0.1 N/cm, a dynamic fluid transmission of less than about 0.75 g/m2 when subjected to an impact energy of about 2400 joules/m2, and a moisture vapor transmission rate, according to the desiccant method, of at least 1500 g/m2/24 hr.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: August 17, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Nora Liu Carroll, Hyun Sung Lim, George Joseph Ostapchenko, Shailaja R. Vaidya, J. Michael McKenna, John Joseph Curro, Gary Dean Lavon, Richard L. Sparks