Microfiber Is Glass Patents (Class 442/348)
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Patent number: 8956437Abstract: Articles such as filter media, which include dendrimers and/or other components, are provided. The filter media may further include a water repellant (e.g., a fluorinated species) to impart desirable properties to the media such as high water repellency. The filter media may also have a high efficiency as a function of pressure drop (i.e., high gamma values). In some embodiments, the filter media includes a fiber web which may be formed of various components such as glass fibers. The fiber web can also include additional components such as synthetic fibers, binder components, as well as other additives. The media may be incorporated into a variety of filter element products.Type: GrantFiled: December 29, 2011Date of Patent: February 17, 2015Assignee: Hollingsworth & Vose CompanyInventors: David F. Sealey, Stuart Williams
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Publication number: 20140273702Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended iron oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains non-durable in physiological fluids. Also provided are thermal insulation product forms comprising a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: UNIFRAX I LLCInventors: Bruce K. Zoitos, Michael J. Andrejcak
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Publication number: 20140120794Abstract: Provided is a thermal insulation laminate having both of an excellent thermal insulation property and high visible light transmittance, and further having a provided antifouling property and an excellent scratch resistance. A thermal insulation laminate includes a photocatalytic layer (4); a transparent thermal insulation layer (10) having two transparent base plates (1, 1) and composite materials including a fiber assembly (2) and inorganic particles (3) therebetween; and an adhesive layer (5); the photocatalytic layer (4) is an outermost layer of one side thereof, and the adhesive layer (5) is an outermost layer of other side. A hard coat layer may be sandwiched in either at least one of between the photocatalytic layer (4) and the transparent thermal insulation layer (10), and between the transparent thermal insulation layer (10) and the adhesive layer (5).Type: ApplicationFiled: January 3, 2014Publication date: May 1, 2014Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Hiroshi MOGI, Yoshihiro KUBOTA
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Patent number: 8709120Abstract: The present disclosure generally relates to filter media including glass fibers. The fiber characteristics (e.g., composition, dimensions) are selected to impart the desired solubility, filtration and mechanical properties so that the filter media may be used in the desired application.Type: GrantFiled: December 22, 2010Date of Patent: April 29, 2014Assignee: Hollingsworth & Vose CompanyInventor: Yuri Vulfson
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Publication number: 20140113125Abstract: A method of forming a needled fiberglass glass insulation product is provided. The formation of the needled insulation product may be conducted in a process in which the fibers are formed, a binder is sprayed onto the fibers, the fibers are collected and formed into a fiberglass pack, the fiberglass pack is passed through the oven, and at least partially cured insulation blanket is passed through a needling apparatus. The reduction in thickness and increased density caused by the needling process permits the production of lower thickness and high density insulation products.Type: ApplicationFiled: December 19, 2013Publication date: April 24, 2014Applicant: Owens Corning Intellectual Capital, LLCInventors: Jacob Chacko, Robert P. Collier, Edward A. Martine
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Patent number: 8637151Abstract: An objective of this invention is to provide an interlayer dielectric film with a carrier material used in a multilayer printed circuit board, which exhibits sufficient rigidity for a thin multilayer printed circuit board. According to the present invention, there is provided an interlayer dielectric film with a carrier material comprising a carrier material comprised of a metal foil or resin film and an interlayer dielectric film formed on one side of the carrier material, wherein the interlayer dielectric film is comprised of a base material impregnated with a resin; the base material has a thickness of 8 ?m to 20 ?m; and when the resin is cured at 170° C. for one hour under a pressure of 30 kgf/cm2, an elongation percentage of the interlayer dielectric film in a planar direction is 0.05% or less as determined by a TMA method.Type: GrantFiled: February 12, 2008Date of Patent: January 28, 2014Assignee: Sumitomo Bakelite Co., Ltd.Inventor: Toyoaki Kishi
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Publication number: 20130337251Abstract: A glass fibre mat comprises glass fibres of a first kind, glass fibres of a second kind and a binding agent. Glass fibres of the first kind in this case are characterized by a mean fibre diameter of under 6 ?m and compliance with the EC Protocol “ECB/TM/27 rev. 7” and glass fibres of the second kind by a mean fibre diameter of over 6 ?m. The ratio between the weight component of glass fibres of the first kind and the weight component of glass fibres of the second kind is between 0.01 and 0.15. And the surface weight of the glass fibre mat is between 25 g/m2 and 80 g/m2. In a CV floor covering comprising a usable layer and a structural layer, the structural layer comprises a glass fibre mat of this kind provided with impregnation.Type: ApplicationFiled: February 10, 2012Publication date: December 19, 2013Applicant: JOHNS MANVILLEInventor: Thomas Grassl
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Patent number: 8476175Abstract: The invention relates to glass strands especially for the production of composites having an organic and/or inorganic matrix, the composition of which strands comprises the following constituents in the limits defined below, expressed as percentages by weight: SiO2 50-65% Al2O3 12-23% SiO2 + Al2O3 ??>79% CaO ?1-10% MgO ?6-12% Li2O ?1-3%, preferably 1-2% BaO + SrO ?0-3% B2O3 ?0-3% TiO2 ?0-3% Na2O + K2O ??<2% F2 ?0-1% Fe2O3 ??<1%. These strands are made of a glass offering an excellent compromise between its mechanical properties, represented by the specific Young's modulus, and its melting and fiberizing conditions.Type: GrantFiled: April 22, 2009Date of Patent: July 2, 2013Assignee: Saint-Gobain AdforsInventor: Emmanuel Lecomte
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Publication number: 20130142983Abstract: The present invention relates to a composite core material for a vacuum insulation panel which exhibits excellent initial insulation and long-term durability, a method of manufacturing the same, and a vacuum insulation panel using the same. The vacuum insulation panel includes a composite core material formed of glass fiber wool and a glass fiber board, and an outer skin material having a layered structure comprising a surface protective layer, a metal barrier layer, and a bonding layer from the outside to vacuum-package the core material.Type: ApplicationFiled: July 13, 2011Publication date: June 6, 2013Applicant: LG HAUSYS, LTD.Inventors: Jung - Pil Han, Sung - Seock Hwang
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Publication number: 20130045352Abstract: A burnthrough resistant non-woven mat is made of a glass fibers and includes a binder having a vinyl component and a strengthening component. The vinyl component may be, for example, ethylene vinyl chloride, and the strengthening component may be, for example, melamine formaldehyde. The burnthrough resistant non-woven mat may be used in conjunction with an insulation blanket, and may be especially suited to use in insulating aircraft. Methods of making the burnthrough resistant non-woven mat are discussed.Type: ApplicationFiled: August 15, 2011Publication date: February 21, 2013Inventors: Charles Francis Kern, Elam A. Leed, Guodong Zheng, Monroe William Shumate
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Publication number: 20120177870Abstract: A ballistic impact resistant composite comprising a glass fiber and a resin, where the glass fiber consists essentially of fiber having a diameter of less than 9 microns, is provided. The ballistic impact resistant article or composite comprising fiber less than 9 micron yields a higher V50 value at the same areal density, or the same V50 value at a lower areal density, than an impact resistant article or composite comprising fiber of greater than 9 micron.Type: ApplicationFiled: March 5, 2008Publication date: July 12, 2012Inventor: Phra Douglas Lyle
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Publication number: 20120149271Abstract: A mat material includes a glass fiber. The glass fiber includes 52 to 62% by weight of SiO2, 9 to 17% by weight of Al2O3, 17 to 27% by weight of CaO, 0 to 9% by weight of MgO, 0 to 4% by weight of TiO2, 0 to 5% by weight of ZnO, substantially no B2O3, and 0 to 2% by weight of a total sum of Na2O+K2O. A surface pressure of the mat material is 100 kPa or more when a temperature of an upper base and a temperature of a lower base reaches 700° C. and 400° C., respectively, in a case of increasing the temperature of the upper base at a temperature increase rate of 15° C./minute at a same time of increasing the temperature of the lower base at a temperature increase rate of 8.6° C./minute where GBD (Gap Bolt Density)=0.35 g/cm3.Type: ApplicationFiled: December 29, 2011Publication date: June 14, 2012Applicant: IBIDEN CO., LTD.Inventors: Junichi Sugino, Tsutomu Yamazaki
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Patent number: 8110283Abstract: 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: GrantFiled: September 28, 2007Date of Patent: February 7, 2012Assignee: General Electric CompanyInventors: Vishal Bansal, Benjamin Hale Winkler, Hieu Minh Duong, Tamaki Ryo
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Patent number: 8057567Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.Type: GrantFiled: May 1, 2006Date of Patent: November 15, 2011Assignee: Donaldson Company, Inc.Inventors: David M. Webb, David E. Carlson, Robert M Rogers, Keh B. Dema
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Patent number: 7897529Abstract: There is provided a substrate (1) capable of carrying uniformly dispersed, finely divided, particulate, solid particles, e.g., catalyst particles (10) and sustaining temperatures in excess of 1200 degrees F. The substrate comprises a top layer (2) for containing the particles (10) and composed of quartz fibers (4) with an average diameter of between about 0.1 and 4 microns and about 0 to 13% of microglass fibers having a softening point of about 1000 degrees F. A support layer (3) is composed of the fibers of the top layer and, in addition, bulk refractory, e.g., ceramic, fibers (6) having and average diameter of about 1 to 4 microns and 0 to 50% of chopped e-glass fiber (7). A method for producing the substrate is provided that includes wet laying the top and bottom layers in spaced apart times so that the juncture (8) between the two layers has intermingled fibers whereby the consolidated layers are not easily separated.Type: GrantFiled: March 21, 2008Date of Patent: March 1, 2011Assignee: Lydall, Inc.Inventors: Abhishek D. Saxena, Paul N. Segit, Stephen E. Gross
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Patent number: 7846545Abstract: An object of the present invention is to provide a glass fiber package where a glass fiber aggregate which contains alkali-containing glass wool fiber of a very small diameter having an average fiber size of 5 ?m or less or, particularly, less than 1 ?m and containing 5% or more by weight or, particularly, 10% or more by weight of alkali metal oxide components is packed in a compressed state to give a form which is able to be handled as a freight, and in which, fiber breakage (lowering in the fiber length) and fiber adhesion caused by compression packing is hardly resulted even upon a long-term storage whereby the properties inherent to the glass fiber immediately after its manufacture is apt to be maintained; to provide a method for packing the glass fiber; and to provide a glass fiber product using the same.Type: GrantFiled: March 27, 2008Date of Patent: December 7, 2010Assignee: Nippon Sheet Glass Company, LimitedInventors: Shoji Sugiyama, Takashi Shidomi, Masahiro Kawachi
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Patent number: 7842629Abstract: A gypsum board comprises a set gypsum layer having a first face and a second face. A fibrous mat is affixed to at least one of the faces. The mat comprises a non-woven web bonded together with a resinous binder. The web comprises a blend of a major portion composed of chopped continuous glass fibers having an average fiber diameter ranging from about 8 to 17 ?m and a minor portion composed of fine staple fibers having an average fiber diameter of less than about 5.5 ?m, the minor portion comprising about 1-30 percent of the dry weight of the web. The board is exceedingly durable. It has a smooth surface that is readily finished in an aesthetically pleasing way, using paint or other wall covering systems.Type: GrantFiled: June 27, 2003Date of Patent: November 30, 2010Assignee: Johns ManvilleInventor: Alan Michael Jaffee
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Patent number: 7807592Abstract: A gypsum wallboard suitable for Level 4 finishing having a coated non-woven first glass fiber mat facing material on one major surface and an optionally coated second glass fiber mat where on the other major surface. The first glass fiber mat has a majority of fibers of a nominal fiber diameter between 8 and 11 microns and a fiber length between ¼ and ¾ inch and has a basis weight between about 1.7 lb./100 ft.2 and about 2.0 lb./100; the second glass fiber mat has a majority of fibers of a nominal fiber diameter of at least 13 microns but no greater than about 16 microns and a fiber length between ¾ and 1 inch and has a basis weight between about 1.8 lb./100 ft.2 and about 2.2 lb./100, and wherein the fibers in both of the non-woven glass fiber mats are bound together with an acrylic-type adhesive binder.Type: GrantFiled: October 28, 2009Date of Patent: October 5, 2010Assignee: Georgia-Pacific Gypsum LLCInventors: Brian W. Bland, Alan E. Currier
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Patent number: 7687416Abstract: An arrangement for producing a fibrous mat from a heated die source wherein the produced mat includes a first layered, preselected fiber portion of substantially straight fibers produced by directing such fibers directly to a collector source and a second layered preselected fiber portion of substantially curled fibers produced by diverting and exerting an external vortically creative curling force thereon before reaching the collector source.Type: GrantFiled: May 12, 2006Date of Patent: March 30, 2010Assignee: AAF-McQuay Inc.Inventor: Kyung Choi
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Patent number: 7635657Abstract: A gypsum wallboard suitable for Level 4 finishing having a coated non-woven first glass fiber mat facing material on one major surface and an optionally coated second glass fiber mat where on the other major surface. The first glass fiber mat has a majority of fibers of a nominal fiber diameter between 8 and 11 microns and a fiber length between ¼ and ¾ inch and has a basis weight between about 1.7 lb./100 ft.2 and about 2.0 lb./100; the second glass fiber mat has a majority of fibers of a nominal fiber diameter of at least 13 microns but no greater than about 16 microns and a fiber length between ¾ and 1 inch and has a basis weight between about 1.8 lb./100 ft.2 and about 2.2 lb./100, and wherein the fibers in both of the non-woven glass fiber mats are bound together with an acrylic-type adhesive binder.Type: GrantFiled: April 25, 2005Date of Patent: December 22, 2009Assignee: Georgia-Pacific Gypsum LLCInventors: Brian W. Bland, Alan E. Currier
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Publication number: 20090275250Abstract: A gypsum board which comprises a set gypsum core sandwiched between and faced with fibrous mats, wherein a free surface of one of said mats is pre-coated with a combination of a mineral pigment, optionally an inorganic adhesive binder and an organic binder, preferably a hydrophobic, UV resistant polymer latex adhesive binder applied to said surface as an aqueous coating composition, said aqueous coating composition upon drying and setting providing a pre-coated mat satisfying certain morphology requirements.Type: ApplicationFiled: April 22, 2009Publication date: November 5, 2009Applicant: Georgia-Pacific Gypsum LLCInventors: Russell Smith, Brian Randall
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Patent number: 7608550Abstract: Dispersion of a fire retardant agent in a binder used to form a fire retardant fiberglass mat allows for easy and uniform incorporation of the fire retardant agent into the fire retardant fiberglass mat. The fire retardant fiberglass mat is bonded to a fiberglass insulation batt, providing fire retardant composite useful as duct board or equipment liner.Type: GrantFiled: November 4, 2005Date of Patent: October 27, 2009Assignee: Johns ManvilleInventor: Glenda Beth Bennett
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Publication number: 20090186549Abstract: A gypsum board comprises a set gypsum layer having a first face and a second face. An uncoated fibrous mat is affixed to at least one of the faces. The mat comprises a non-woven web bonded together with a resinous binder. The web comprises glass fiber consisting essentially of a major portion composed of chopped continuous glass fibers having an average fiber diameter ranging from about 8 to 25 ?m and optionally a minor portion consisting essentially of at least one of small diameter glass fibers having a fiber diameter of at most about 13 ?m and microfibers having an average fiber diameter ranging from about 0.05 to about 6.5 ?m. The board is exceedingly durable and has a high resistance to water absorption, rendering it particularly useful for exterior insulation systems.Type: ApplicationFiled: January 22, 2008Publication date: July 23, 2009Inventor: Glenda Beth Bennett
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Patent number: 7252868Abstract: An insulation product, and method of making the same, is provided comprising a mat containing randomly oriented fibers bonded by a binder, the mat having first and second major surfaces and a pair of side portions, and at least one flexible reinforcing layer bonded to the mat between the first and second major surfaces and extending along a length of said mat.Type: GrantFiled: March 23, 2004Date of Patent: August 7, 2007Assignee: CertainTeed CorporationInventors: David I. Suda, Michael J. Lembo
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Patent number: 7064092Abstract: The floor covering includes multiple layers including a non-woven base layer, a VAE precoat applied to the non-woven woven base layer and overlaid by a first PVC layer. A fiberglass mat is applied over the first PVC layer and a second PVC layer is applied over the mat. A woven PVC layer is laminated by heat and pressure to the underlying second PVC layer. The woven PVC layer comprises monofilament or multifilament cores, preferably but not limited to, polyester filaments overlaid by a PVC coating.Type: GrantFiled: June 4, 2003Date of Patent: June 20, 2006Assignee: Mohawk Brands, Inc.Inventors: Robert D. Hutchison, Todd M. Shail
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Patent number: 6986939Abstract: The invention relates to a method for the manufacture of chipboard comprising a centre layer (18) of coarse chips and outer layers (20) of chips whose fibers are oriented in the plane of the board. In order to be able to reduce the density of the finished board while retaining the intrinsic characteristic profile of the board, it is proposed in accordance with the invention that the chips used to compose the centre layer (18) will comprise end-grain cut, flake-like chips (22) whose fibers are oriented in the thickness direction (24) of the chips, the chip fibers in the centre layer being oriented substantially transversely to the plane of the chipboard. The invention also relates to chipboard manufactured in accordance with the method.Type: GrantFiled: May 15, 2001Date of Patent: January 17, 2006Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e. V.Inventor: Johann W. Herlyn
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Patent number: 6933252Abstract: The present invention provides nonwoven glass composites formed from an essentially boron free glass wool and an essentially boron free chopped glass fiber, used as a reinforcing material. The nonwoven glass composites are suitable for air filtration apparatus and can be used in the semiconductor industry where the elimination of boron from clean rooms is of importance.Type: GrantFiled: December 14, 2000Date of Patent: August 23, 2005Assignee: Hollingsworth & Vose CompanyInventor: Mary E. Pierce
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Patent number: 6851283Abstract: A mat of mineral fibers has a random or quasi-random fiber orientation. The fibers have diameters which, for the great majority of them, are 2.5 to 4.5 micrometers, and a length of 2 to 15 cm. Its density is less than 40 kg/m3. Its resistance to compression, for a crushing of 10%, is equal to at least 0.5 kN/m2. The fineness of the fibers and their random distribution imparts to the mat an exceptional lightness and an excellent flexibility, making possible the perfect application of the mat on cylindrical surfaces.Type: GrantFiled: October 18, 1999Date of Patent: February 8, 2005Assignee: Isover Saint-GobainInventors: Paolo Baracchini, Jean-Pierre Vullieme
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Publication number: 20040266304Abstract: A gypsum board comprises a set gypsum layer having a first face and a second face. A fibrous mat is affixed to at least one of the faces. The mat comprises a non-woven web bonded together with a resinous binder. The web comprises a blend of a major portion composed of chopped continuous glass fibers having an average fiber diameter ranging from about 8 to 17 &mgr;m and a minor portion composed of fine staple fibers having an average fiber diameter of less than about 5.5 &mgr;m, the minor portion comprising about 1-30 percent of the dry weight of the web. The board is exceedingly durable. It has a smooth surface that is readily finished in an aesthetically pleasing way, using paint or other wall covering systems.Type: ApplicationFiled: June 27, 2003Publication date: December 30, 2004Inventor: Alan Michael Jaffee
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Publication number: 20040248489Abstract: The floor covering includes multiple layers including a non-woven base layer, a VAE precoat applied to the non-woven woven base layer and overlaid by a first PVC layer. A fiberglass mat is applied over the first PVC layer and a second PVC layer is applied over the mat. A woven PVC layer is laminated by heat and pressure to the underlying second PVC layer. The woven PVC layer comprises monofilament or multifilament cores, preferably but not limited to, polyester filaments overlaid by a PVC coating.Type: ApplicationFiled: June 4, 2003Publication date: December 9, 2004Inventors: Robert D. Hutchison, Todd M. Shail
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Publication number: 20040224594Abstract: The present invention relates to wet laid nonwoven glass fiber webs, filter media formed of or containing wet laid nonwoven glass fibers webs, and methods of making the same using a wet laid processing technique. The filter media are particularly advantageous in that it has been discovered that adjusting the pH during wet laid processing will produce a glass fiber web having improved filtration properties. In particular, neutralizing the pH of a slurry containing mainly glass wool fibers unexpectedly yields a non-electret, filter media that has a gamma value of at least about 14, which is a significant improvement over non-electret, wet laid glass filter media currently on the market which have been shown to have a gamma value that does not exceed 13. The nonwoven glass webs prepared according to the present invention preferably contain a combination of glass wool fibers and chopped glass fibers.Type: ApplicationFiled: April 12, 2004Publication date: November 11, 2004Inventors: Wai Ming Choi, Norman Lifshutz
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Publication number: 20040203307Abstract: A wallcovering system, composite wallcovering and method for providing a smooth finished surface to wall substrate are provided. The wallcovering system comprises a composite wallcovering consisting essentially of a decorative wallcovering layer bonded to a base sheet having sufficient stiffness, thickness and compressibility to conceal surface irregularities on a wall surface of a wall substrate. In one aspect of the invention, the composite wallcovering comprises a layer of woven glass fiber adhesively bonded to a nonwoven fiber glass mat. The composite wallcovering can be installed in one step to provide a smooth finished wall surface on the wall substrate.Type: ApplicationFiled: April 11, 2003Publication date: October 14, 2004Inventors: Francis J. Babineau, Donald R. Steinle, Glenda Beth Bennett, Alan Michael Jaffee
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Publication number: 20040161993Abstract: An inorganic fiber composite insulation batt is fabricated from mineral or inorganic fibers, preferably from scrap, and plastic-containing bonding fibers. The inorganic fiber composite insulation batt has substantially uniform density throughout its volume. The plastic-containing bonding fibers are used as the binder in this formulation.Type: ApplicationFiled: February 19, 2004Publication date: August 19, 2004Inventors: Gary Tripp, Alain Yang, Mark Trabbold
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Patent number: 6747215Abstract: A fat conductor electrically interconnecting between a pair of substantially parallel plates wherein each of the plates has a prearranged pattern of conducting surface coating regions on the central interior face side thereof, and the fat conductor is specifically for use in sandwiched constructions of the plates having encapsulated dielectric film there-between, the fat conductor including: two thin conductive surface coating pads of substantially complementary size and one of the two pads is located on each facing plate and the pads are situated to face each other when the plates are sandwiched together and each pad has an associated conductive surface coating path on its respective surface; a perimeter wall of adhesive arranged around one of the pads; and a conductive paste situated within the perimeter wall such that when the plates are sandwiched together there is formed an electrically conductive connection between the pads via the paste.Type: GrantFiled: June 28, 2003Date of Patent: June 8, 2004Inventors: Jack Amir, Amir Ben-Shalom
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Publication number: 20030207628Abstract: The present invention provides nonwoven glass composites formed from an essentially boron free glass wool and an essentially boron free chopped glass fiber, used as a reinforcing material. The nonwoven glass composites are suitable for air filtration apparatus and can be used in the semiconductor industry where the elimination of boron from clean rooms is of importance.Type: ApplicationFiled: December 14, 2000Publication date: November 6, 2003Inventor: Mary E. Pierce
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Patent number: 6485856Abstract: A non-woven fibre web comprising a plurality of first fibres of amorphous silica, said first fibres being orientated in the x-, y- and optionally z-direction, and optionally being bonded with one or more binder substances, characterised in that one or more continuous strands are embedded within the non-woven fibre web, each continuous strand comprising one or more second fibres of amorphous silica, and a method for the manufacture thereof is disclosed. Also disclosed is an ion-conducting membrane comprising said non-woven web and the use thereof, in particular, in a fuel cell.Type: GrantFiled: June 12, 2000Date of Patent: November 26, 2002Assignee: Johnson Matthey Public Limited CompanyInventors: Karen Leanne Brown, John Malcolm Gascoyne
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Patent number: 6358871Abstract: Low-boron, high-barium glass compositions and fine-diameter glass fibers for forming clean room HEPA and ULPA filters, are provided. The compositions and resulting glass fibers preferably comprise a low concentration, less than about 1 weight percent, of boric oxide, a relatively high concentration of barium, such as from about 5.5 to about 18 weight percent barium oxide, and a concentration of alkali oxide ranging from about 10 to about 14.5 weight percent. Alumina is preferably present in the glass fiber compositions and the resulting glass fibers in a range of from about 4 weight percent to about 8 weight percent, and calcium oxide and magnesium oxide are preferably present in a range of from about 1 weight percent to about 6 weight percent and from about 0 weight percent to about 3.5 weight percent, respectively. The glass fiber compositions also preferably include from about 2 to about 6 weight percent zinc oxide, from about 0.1 to about 1.Type: GrantFiled: March 22, 2000Date of Patent: March 19, 2002Assignee: Evanite Fiber CorporationInventor: Anup Sircar
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Patent number: 6245696Abstract: This invention concerns lasable bond-ply materials comprising a nonwoven reinforcing material and at least one resin material. The present invention also includes methods for using the bond-ply of this invention to manufacture high density multilayer printed wiring boards.Type: GrantFiled: June 25, 1999Date of Patent: June 12, 2001Assignee: Honeywell International Inc.Inventors: David R. Haas, Chengzeng Xu, Mavyn McAuliffe, Scott Zimmerman, Laura Miller, Meifang Qin, Baopei Xu, Richard J. Pommer
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Patent number: 6093485Abstract: A fiber glass mat especially useful for bonding to foam contains glass fibers and a "B" staged acrylic resin having a glass transition temperature above 45 degrees C., the method of making the mat, a precursor for a foam laminate, a method for making a foam laminate, and the product produced by the latter method are disclosed. The mat conforms well to any curvature on the foam layer and stiffens the foam layer resulting in a superior foam laminate for making automotive parts like headliners.Type: GrantFiled: November 5, 1999Date of Patent: July 25, 2000Assignee: Johns Manville International, Inc.Inventor: Alan Michael Jaffee
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Patent number: 6008147Abstract: A fiber glass mat especially useful for bonding to foam contains glass fibers and a "B" staged acrylic resin having a glass transition temperature above 45 degrees C., the method of making the mat, a precursor for a foam laminate, a method for making a foam laminate, and the product produced by the latter method are disclosed. The mat conforms well to any curvature on the foam layer and stiffens the foam layer resulting in a superior foam laminate for making automotive parts like headliners.Type: GrantFiled: May 28, 1998Date of Patent: December 28, 1999Assignee: Johns Manville International, Inc.Inventor: Alan Michael Jaffee
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Patent number: 5948709Abstract: Oil resistant adhesive compositions and nonwoven articles comprising an adhesive prepared from polymeric dimer fatty acid polyamide resins which are especially suited for use in the elastic attachment of disposable nonwoven products and particularly for leg or waist bond closures for disposable products such as diapers are disclosed.Type: GrantFiled: April 10, 1998Date of Patent: September 7, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventors: Charles W. Paul, Gary F. Raykovitz
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Patent number: 5843554Abstract: Multi-layer covering articles having a base layer adapted to yieldably conform to a surface to be covered and having properties appropriate for a particular application in which the article is to be used, and a thermoplastic surface layer bonded to a surface of the base layer and incorporating a reinforcing material to provide strength and tear resistance for the covering article. The reinforcing material permits the surface layer to function as the strength-providing member of the article, permitting the base layer to be designed solely in accordance with the requirements of a particular application without regard to its strength.Type: GrantFiled: February 18, 1994Date of Patent: December 1, 1998Assignee: Katman, Inc.Inventor: Donald P. Katz
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Patent number: 5719092Abstract: The present invention is a polymer/fiber matrix used as a photographic support. The fibers are of a specific glass composition and the polymer can be polyethylene, polypropylene, polystyrene, polybutylene and copolymers thereof. The matrix preferably includes between 1% and 79% fibers with the fibers having a diameter of between 0.001 mm and 0.01 mm.Type: GrantFiled: May 31, 1996Date of Patent: February 17, 1998Assignee: Eastman Kodak CompanyInventor: Eric Eugene Arrington
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Patent number: RE35984Abstract: A process for producing fiberglass reinforced molded articles of superior surface quality involves preparation of a mat of glass fiber comprised of a majority of fibers having a diameter of less than one micron and a minority of fibers having a diameter greater than one micron. A sizing is applied to the fibers. The sizing includes a coupling agent preselected to be compatible with the moldable material, e.g. nylon. The glass fiber mat is comminuted into pieces shaped and dimensioned for combination with the moldable material to form a composite having a range of to 50% of glass fiber by weight. The composite is then molded by a conventional process to yield a fiberglass reinforced article with superior surface quality.Type: GrantFiled: November 1, 1994Date of Patent: December 8, 1998Assignee: Johns Manville International, Inc.Inventors: James A. Fadell, Stephen E. Gross