Patents Examined by James J. Bell
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Patent number: 5912193Abstract: Disclosed are thermoplastic polyurethanes obtainable by reacting (a) a polyester-polyol that satisfies all the following requirements (1) to (4):(1) its ester group content (number of ester bonds/number of all carbon atoms) is from 0.08 to 0.17;(2) it has hydroxyl groups of from 2.01 to 2.08 per one molecule;(3) it has a number average molecular weight of from 1000 to 7000; and(4) it has a crystallization enthalpy (.DELTA.H) of 70 J/g or less,(b) an organic diisocyanate and (c) a chain extender at a ratio that satisfies the following numerical formula (i):1.00.ltoreq.b/(a+c).ltoreq.1.Type: GrantFiled: March 3, 1998Date of Patent: June 15, 1999Assignee: Kuraray Co., Ltd.Inventors: Shizuo Iwata, Shinya Katoh, Kimio Nakayama, Tetsuya Ashida, Hisao Yoneda, Michihiro Ishiguro, Koji Hirai
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Patent number: 5912195Abstract: A method for preparing an uncured supported elastomer material includes the steps of: providing a fibrous reinforcement material; providing a layer of uncured elastomer material substantially adjacent to the fibrous reinforcement material; exposing the layer and the fibrous reinforcement to a temperature below a curing temperature and above a flow point of the uncured elastomer material, and a pressure sufficient that the uncured elastomer material flows into the fibrous reinforcement material, so as to provide an uncured supported elastomer material.Type: GrantFiled: April 16, 1998Date of Patent: June 15, 1999Assignee: United Technologies CorporationInventors: Lisa A. Walla, Charles R. Watson
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Patent number: 5912196Abstract: A flame retardant composition for treating a high pulp content nonwoven web is provided. The flame retardant composition includes soluble solids formed from inorganic salts, such as ammonium polyphosphate and sulfur. The TGA range of such soluble solids is from about 175.degree. C. to about 370.degree. C. The flame retardant composition may be continuously and uniformly applied to the high pulp content nonwoven web by a non-compressive process.Type: GrantFiled: December 20, 1995Date of Patent: June 15, 1999Assignee: Kimberly-Clark Corp.Inventors: Fred Robert Radwanski, Henry Skoog, Terry Ray Cleveland, Phillip Sherman Warren, William Francis Cartwright
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Patent number: 5910455Abstract: The present invention provides an aqueous cleanser formulation comprising a blend of paramenthadienes together with one or more surfactants and/or solubilisers. Such a formulation has been found to be capable of removing a wide range of heavy soils from the skin surface whilst leaving minimal residual odour.Type: GrantFiled: September 12, 1996Date of Patent: June 8, 1999Assignee: Kimberly Clark Corp.Inventors: Peter Maddern, Serge Khalifa
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Patent number: 5910456Abstract: There is disclosed a prepreg including noncircular cross-section carbon fibers and a matrix resin having a flexural elastic modulus of 2.7 GPa or more and a water absorption of 3.4% or less under hot-wet conditions after curing; and another prepreg including carbon fibers and a matrix resin having an open-hole compression strength under hot-wet conditions and a compression strength after impact under room-temperature conditions of a quasi-isotropic material after curing of each 275 MPa or more. Carbon fiber-reinforced composite materials produced by curing these prepregs are excellent in open-hole compression strength under hot-wet conditions and in compression strength after impact, and can be suitably used especially as an aircraft primary structure material.Type: GrantFiled: September 9, 1996Date of Patent: June 8, 1999Assignee: Toray Industries, Inc.Inventors: Yoji Matsuhisa, Masanobu Kobayashi, Akira Okuda, Kazuharu Shimizu
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Patent number: 5908687Abstract: A heat-sensitive stencil including a thermoplastic resin film, and a porous resin layer formed thereon. The porous resin layer contains fibers having an average length in the range of 30 .mu.m to 10 mm. The stencil is produced by applying a coating liquid over a surface of a thermoplastic resin film to form a coated layer, and drying the coated layer. The coating liquid has a viscosity of 80-250 cp at 25.degree. C. and contains a resin and fibers having an average length in the range of 30 .mu.m to 10 mm.Type: GrantFiled: August 28, 1997Date of Patent: June 1, 1999Assignee: Tohoku Ricoh Co., Ltd.Inventor: Tomiya Mori
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Patent number: 5908793Abstract: Fiber fleeces made entirely of pure artificial (polymeric) fibers or mixed with natural fibers have to be solidified after formation by carding, or laying only in the case of filament fleeces. In the fleece according to the invention, which is particularly bulky and thus needs to be solidified, neither lower-melting binding fibers nor chemical binding agents are used. Also, the mechanical needling process which uses needles is eliminated because this reduces the bulk too severely. The desired bulk is retained by producing solidification by a single water needling process (when performed on one side), with the desired water pressure being no higher than 60 bars, preferably 20-30 bars.Type: GrantFiled: June 17, 1998Date of Patent: June 1, 1999Assignee: Fleissner GmbH & Co. MaschinenfabrikInventor: Gerold Fleissner
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Patent number: 5908880Abstract: A water-permeable material having good chemical resistance, water resistance and weatherability and in which cracks do not form in the material. The composition for forming a water-permeable material includes aggregate grains, a polysulfide-modified epoxy resin and a curing agent for the polysulfide-modified epoxy resin.Type: GrantFiled: May 27, 1997Date of Patent: June 1, 1999Assignee: Toray Industries, Inc.Inventors: Tadami Kamaishi, Hideaki Tanisugi
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Patent number: 5906873Abstract: A puncture, pierce, and cut resistant fabric comprised of a plurality of sheets of solid objects arranged in a repeating pattern. The solid objects are connected so that they are slideable relative to one another. Each sheet is in a stacked arrangement with the other sheets and are slideably interconnected to one another. Rivets are placed through apertures formed in or between the solid objects to hold the fabric together and to provide the slideable interconnection between the sheets. An interconnecting material interconnects the sheets of solid objects. An interconnecting material of elastomer returns the sheets from a stretched position to a compressed position. The fabric is formed with a means for limiting the movement of the solid objects relative to one another a predetermined amount, such as an elastomeric material inherently stretchable to a predetermined limit. The fabric is twistable, bendable, and stretchable.Type: GrantFiled: May 27, 1997Date of Patent: May 25, 1999Assignee: Higher Dimension Medical, Inc.Inventor: Young Hwa Kim
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Patent number: 5906879Abstract: A 3-dimension thermoformed bicomponent fiber nonwoven material comprising a lofty bicomponent material layer forming a plurality of peaks separated from one another by channels and having a basis weight in the range of about 0.5 to 7.0 ounces per square yard. The bicomponent material layer comprises a structural component and a heat activatable adhesive component suitable for thermoforming. Also disclosed are various configurations of this material suitable for use in absorbent personal care articles such as sanitary napkins, disposable diapers, incontinent-care pads and the like.Type: GrantFiled: April 30, 1997Date of Patent: May 25, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Andrew Edsel Huntoon, Mary Garvie Weber, Gordon Allen Shaw, Marshall Kenneth Bryant, Mark George Everson, Gerald Lewis Clark, Wanda Walton Jackson, Susan Marie Vanage, Mark Charles Jacobs, Pamela Jean Mayberry, James Arthur Davis, Douglas Bryan Cole, Stanley Michael Gryskiewicz, Ann Louise McCormack, Richard Daniel Pike, Leslie Warren Collier, IV, Frank Andrew Rosch, III, Scott Richard Lange
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Patent number: 5906889Abstract: Pavement marking material comprising a top layer, an optional base sheet, and a layer of adhesive, wherein the adhesive comprises a rubber and a high loading of tackifier. Such adhesives have been found to exhibit exceptional impact shear resistance.Type: GrantFiled: May 15, 1997Date of Patent: May 25, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gary R. Miron
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Patent number: 5905046Abstract: A water-disintegrable sheet having biodegradability. The sheet comprises one or more kinds of biodegradable synthetic fibers, and one or more kinds of natural fibers and/or regenerated fibers, all the fibers being bound together by a binder such that the binding power of the binder will be substantially lost in water. The sheet has a given degree of tensile strength and good softness, coupled with a required degree of liquid absorbency, and still has some biodegradation property. Therefore, the sheet can be flushed in a flush toilet without involving any appreciable increase in the volume of solid residues in a septic tank and/or in a sewage disposal plant and is therefore suitable for use in the form of a wet wiper in particular.Type: GrantFiled: April 23, 1997Date of Patent: May 18, 1999Assignees: Uni-Charm Corporation, Unitika Ltd.Inventors: Yasushi Takeda, Toshiya Okubo, Chieko Arita, Chizu Otani, Yoshishige Yoshioka, Fumio Matsuoka, Naoji Ichise
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Patent number: 5902674Abstract: A sheet including an olefin thermoplastic elastomer obtainable by dynamically heat-treating 100 parts by weight of a mixture of 40-90% by weight of (A) an olefin polymer rubber having a Mooney viscosity at 100.degree. C. (ML.sub.1+4 100.degree. C.) of 5-100 and substantially free from unconjugated diene and 60-10% by weight of (B) an olefin polymer in the presence of 0.005-0.5 part by weight of an organic peroxide and 0.05-4 parts by weight of N,N'-m-phenylenebismaleimide or divinylbenzene. Said sheet is excellent in light resistance and thermal aging resistance. A laminate including said sheet and a use thereof are also provided.Type: GrantFiled: May 6, 1997Date of Patent: May 11, 1999Assignee: Sumitomo Chemical Company, LimitedInventors: Makoto Makino, Tatsuo Hamanaka
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Patent number: 5899785Abstract: A nonwoven lap of very fine continuous filaments, crimped or not, obtained by means of a controlled direct spinning process, with a weight between 5 g/m.sup.2 and 600 g/m.sup.2, and formed, after napping, of composite filaments separable in the direction of their length, characterized in that said composite filaments have a filament number between 0.3 dTex and 10 dTex and are formed, each, of at least three elementary filaments of at least two different materials and comprising between them at least one plane of separation or cleavage, each elementary filament having a filament number between 0.005 dTex and 2 dTex, the ratio between the cross-sectional area of each elementary filament and the total cross-sectional area of the unitary filament being between 0.5% and 90%.Type: GrantFiled: June 17, 1997Date of Patent: May 4, 1999Assignee: Firma Carl FreudenbergInventors: Robert Groten, Jean Baravian, Georges Riboulet
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Patent number: 5900278Abstract: A superalloy component having a substrate article of a superalloy, and a strengthenable coating covering at least a portion of the substrate article. The coating exhibits thermal barrier characteristics and when cured formed a ceramic material. The component may further include a fiber layer between the substrate article and the coating, and the coating may be reinforced with fiber and the ceramic may be imbedded with inorganic particles. The coating is a foam obtained by reacting an admixture of (a) a silane polymer, (b) a silicone-vinyl resin and (c) a catalyst. The article is preferably a turbine blade. The component is useful as a gas turbine element.Type: GrantFiled: August 20, 1998Date of Patent: May 4, 1999Assignee: General Electric CompanyInventors: George A. Coffinberry, John F. Ackerman, William R. Stowell
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Patent number: 5900300Abstract: A process for preparing GMT/foam composites in an integral process without the prior preparation of a separate consolidated GMT part produces lightweight load-bearing structures suitable for use as vehicle components such as load floors, seatbacks, and the like. The structures have fully GMT-encapsulated foam cores abutting at least partially consolidated GMT layers and at least one fully densified GMT portion. The structures may be economically and rapidly molded without resort to necessary adhesives for assembly.Type: GrantFiled: July 2, 1997Date of Patent: May 4, 1999Inventor: John P. Slaven
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Patent number: 5897929Abstract: A coated base fabric for use in an automotive airbag is provided. The coated base fabric includes a substrate of woven nylon or polyester which is overcoated with a porosity blocking layer of polyamide material. The porosity blocking layer of polyamide material is present at a level of about 0.6 ounces per square yard or less. A method for producing the coated fabric of the present invention is also provided.Type: GrantFiled: December 1, 1997Date of Patent: April 27, 1999Assignee: Milliken & CompanyInventors: Shu Long Li, Robert C. Arnott, Ramesh Keshavaraj
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Patent number: 5895301Abstract: Hand-tearable barrier laminates are provided which include a reinforcing layer having a first tensile strength laminated to flexible cellulosic web comprising open porosity and a second tensile strength which is less than the first tensile strength. The web is treated with a water-resistant polymeric resin for providing liquid water resistance to the web while permitting water vapor to pass through it. Inexpensive web materials can be substituted for polymer foam and microperforated plastic films currently employed by the housing industry.Type: GrantFiled: September 8, 1997Date of Patent: April 20, 1999Assignee: Bay Mills, Ltd.Inventors: John Porter, Rosalene Brunka
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Patent number: 5895710Abstract: The disclosed invention relates to split fibers and improved means and methods for obtaining them as well as their use in nonwovens and incorporation into personal care and other products. Multicomponent filaments are formed including at least two incompatible components. These filaments are drawn under hot aqueous, for example, steam, conditions causing them to split into fibers containing the incompatible components. These fibers are collected as a fine fiber nonwoven which finds utility as a component of sanitary napkins, diapers and other products.Type: GrantFiled: July 10, 1996Date of Patent: April 20, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Philip Anthony Sasse, Richard Daniel Pike
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Patent number: 5891558Abstract: Single and double density biopolymer foams, composite biopolymer foams including both single and double density foams, and methods of preparing these foams and composite foams are described. Also described are biocompatible constructs which include single or double density biopolymer foams and extracellular matrix particulates and methods of preparing these constructs. The foams, composite foams, and biocompatible constructs of the invention can be used in tissue repair and reconstruction.Type: GrantFiled: November 21, 1996Date of Patent: April 6, 1999Assignee: Tissue Engineering, Inc.Inventors: Eugene Bell, Tracy M. Sioussat, Timothy W. Fofonoff