Artificial Fiber Or Filament Patents (Class 428/392)
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Patent number: 7419721Abstract: The present invention is directed to sizing compositions for glass fibers and glass fiber reinforced thermoplastic resins. The sizing composition comprises a maleic anhydride copolymer. Thermoplastic polyamide resin articles reinforced with glass fibers at least partially coated with a residue of the sizing composition can demonstrate a surprising improvement in strength of the reinforced polyamide resin when lubricated with a fatty acid metal salt and in the hydrolysis resistance when exposed to boiling water/ethylene glycol medium.Type: GrantFiled: December 19, 2003Date of Patent: September 2, 2008Assignee: PPG Industries Ohio, Inc.Inventors: Henri Beerda, Ronald Boelman, Jacob Cornelis Dijt, Bertho van de Heisteeg, Johannes Leonardus Tabak
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Publication number: 20080193757Abstract: The invention relates to a method of producing a composite part that is formed from a thermoplastic matrix which is reinforced with long glass fibres. The inventive method comprises an injection or injection-compression moulding step which is performed by a device comprising a single screw which is supplied with the material and the reinforcement. The method is characterised in that the reinforcing fibres are introduced into the device in the form of long cut fibre granules having a glass density of between 90 and 99.5%, preferably between 95 and 99%, and having a length to diameter (L/D) ratio of less than L, expressed in mm. The invention also relates to the composite part obtained using said method.Type: ApplicationFiled: May 2, 2006Publication date: August 14, 2008Inventors: Yohann Barnaud, Jean-Philippe Gasca, Ludovic Chichignoud
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Patent number: 7351473Abstract: The invention relates to glass strands coated with an essentially aqueous sizing composition which comprises the combination of at least one bissilane (A) of formula in which: R1, R2, R3, R4, R5 and R6, which are identical or different, represent a C1-C6, preferably C1-C3, alkyl radical, Z represents a C1-C6 hydrocarbonaceous chain which can comprise one or more N, O and/or S heteroatoms, and of at least one unsaturated monosilane (B) chosen from vinylsilanes and (meth)acrylosilanes. The glass strands obtained exhibit an improved ability to be cut which renders them capable of being used to reinforce polymers, in particular by moulding by simultaneous spraying.Type: GrantFiled: July 12, 2006Date of Patent: April 1, 2008Assignee: Saint-Gobain Vetrotex France S.A.Inventor: Michel Gonthier
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Patent number: 7348059Abstract: A yarn, fabric and garment suitable for use in arc and flame protection contains modacrylic, p-aramid and m-aramid fibers wherein the m-aramid fibers have a degree of crystallinity of at least 20%.Type: GrantFiled: July 26, 2005Date of Patent: March 25, 2008Assignee: E. I. du Pont de Nemours and CompanyInventors: Reiyao Zhu, Debbie Guckert, Susan L. Lovasic
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Patent number: 7329459Abstract: The subject matter herein is directed to a polymer-based cap ply reinforcement material that has a shrinkage component, wherein the reinforcement material is treated such that the shrinkage component increases at least about 10% over a reference shrinkage component of a reference polymer-based reinforcement material. The subject matter herein is further directed to a method of producing a product comprising a polymer-based cap ply reinforcement material, wherein the method includes: a) providing a reference polymer-based cap ply reinforcement material having a reference shrinkage component; b) providing a polymer-based cap ply reinforcement material having a shrinkage component; c) treating the polymer-based cap ply reinforcement material such that the shrinkage component increases at least about 10% over the reference shrinkage component of the reference polymer-based cap ply reinforcement material.Type: GrantFiled: March 7, 2003Date of Patent: February 12, 2008Assignee: Performance Fibers, Inc.Inventor: Peter Bryan Rim
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Publication number: 20080003435Abstract: Faux fibers, more particularly faux fibers including a dye, methods for making such faux fibers and fibrous structures employing such faux fibers are provided.Type: ApplicationFiled: June 20, 2007Publication date: January 3, 2008Inventors: Arnold William Trueman, Kenneth Douglas Vinson
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Patent number: 7306846Abstract: Discrete particles of cellulosic material are flowable and meterable. They are easily dispersible in an aqueous or a dry medium. The particles comprise singulated cellulose fibers that have been densified. The particles have a density of at least 0.3 g/cc.Type: GrantFiled: August 19, 2005Date of Patent: December 11, 2007Assignee: Weyerhaeuser CompanyInventors: Ramon C. Dezutter, Michael R. Hansen
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Patent number: 7303817Abstract: A dental filling material comprising an inner core and outer layer of material disposed and surrounding the inner core, both the inner core and outer layer of material each containing a thermoplastic polymer. The thermoplastic polymer may be biodegradable. A bioactive substance may also be included in the filling material. The thermoplastic polymer acts as a matrix for the bioactive substance. The composition may include other polymeric resins, fillers, plasticizers and other additives typically used in dental materials. The filling material is used for the filing of root canals.Type: GrantFiled: August 6, 2004Date of Patent: December 4, 2007Inventor: Weitao Jia
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Patent number: 7291390Abstract: An aqueous sizing composition for at least partially coating a plurality of glass fibers can comprise at least one rosin, at least one coupling agent, and at least one lubricant. The rosin can be a chemically-modified rosin. A plurality of coupling agents can be included, including combinations of coupling agents that can provide for multi-resin compatibility and desirable fiber glass strand properties. An embodiment of a fiber glass strand at least partially coated with a sizing composition may have properties particularly suited for applications that do not utilize air jet weaving.Type: GrantFiled: November 7, 2003Date of Patent: November 6, 2007Assignee: PPG Industries Ohio, Inc.Inventor: Garry D. Puckett
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Patent number: 7276282Abstract: The present invention relates to reinforcement yarns coated with a sizing composition comprising at least one silane satisfying the formula: Si(R1)(R2)(R3)(R4) in which: R1, R2 and R3 are chosen from the following atoms or groups: —H (except in the case of R3), —Cl, —O—R5, —O—R6—O—R5, —O—(C?O)—R5, —O—R6—(C?O)—R5, R5 and R6 being chosen from hydrocarbon radicals whose main chain has from 1 to 4 carbon atoms; R4?—R7—NHR8 R7 being chosen from branched hydrocarbon radicals whose main chain has from 2 to 6 carbon atoms, R8 being chosen from the following groups: —H, —R9—NH2, —R10—NH—R9—NH2, R9 being chosen from hydrocarbon radicals containing 1 to 12 carbon atoms or from carbonyls, and R10 being chosen from hydrocarbon radicals whose main chain has from 1 to 6 carbon atoms. The glass yarns according to the invention are particularly suitable for reinforcing organic materials, the yarns and composites obtained resisting in a corrosive medium.Type: GrantFiled: March 26, 2003Date of Patent: October 2, 2007Assignee: Saint-Gobain Vetrotex France S.A.Inventors: Eric Dallies, Patrick Moireau
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Patent number: 7270853Abstract: A glass adhesion composition containing a copolymer having an acid and a substituted amide, silanol, or amine oxide functionality. The substituted amide, silanol, or amine oxide functionality provide excellent adhesion of the copolymer to glass, silica, sand and other silicon-based substances. The copolymer is useful as a fiberglass binder, and also useful in providing protective coatings on glass sheets. A fiberglass sizing composition is also provided having a copolymer that includes at least one acid group derived from at least one acid monomer, a hydrophobic comonomer, and a crosslinker.Type: GrantFiled: June 3, 2004Date of Patent: September 18, 2007Assignee: National Starch and Chemical Investment Holding CorporationInventors: Klein A. Rodrigues, James C. Long
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Patent number: 7261936Abstract: An insulation material having insulative properties of a synthetic down, while have a fir-tree structure more similar to natural down, and being in a blown form. The blowable insulation material is composed of plural units each having a number of filaments that are fused at one end of the unit and are open at an opposite end.Type: GrantFiled: May 28, 2003Date of Patent: August 28, 2007Assignee: Albany International Corp.Inventors: Trent W. Davis, Victor P. Laskorski
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Patent number: 7241499Abstract: The invention relates to a sizing composition composed of a solution comprising at least 5% by weight of solvent and comprising a thermally curable base system, said system comprising at least 60% by weight of components with a molecular mass of less than 750 and at least 60% by weight of components of a mixture exhibiting at least one epoxy reactive functional group, at least one amine, preferably primary or secondary amine, reactive functional group, and at least one hydroxyl reactive functional group. Another subject matter of the invention relates to the glass strands coated with the abovementioned sizing composition. The glass strands obtained are capable of being used to reinforce organic or inorganic materials.Type: GrantFiled: December 5, 2002Date of Patent: July 10, 2007Assignee: Saint-Gobain Vetrotex France S.A.Inventor: Patrick Moireau
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Patent number: 7232776Abstract: Disclosed is a surface material for an automobile internal trim panel consisting of a fiber sheet, wherein the fiber sheet contains an oil repellent and substantially consists of non-water absorbent fibers; an oil repellency of at least one surface of the surface material is grade 1 or more in an evaluation by an AATCC Test Method 118-1997; and a grade of the oil repellency of one surface of the surface material is different from that of the other surface thereof. Further, an automobile internal trim panel comprising the same is also disclosed.Type: GrantFiled: April 29, 2003Date of Patent: June 19, 2007Assignee: Japan Vilene Company, Ltd.Inventors: Masaaki Akuzawa, Masami Nakano, Akira Utsumi
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Patent number: 7211199Abstract: Provided are new compositions of ruthenates in the pervoskite and layered pervoskite family, wherein the ruthenate compositions exhibit large magnetoresistance (MR) and electric-pulse-induced resistance (EPIR) switching effects, the latter observable at room temperature. This is the first time large MR and EPIR effects have been shown together in ruthenate compositions. Further provided are methods for synthesizing the class of ruthenates that exhibits such properties, as well as methods of use therefor in electromagnetic devices, thin films, sensors, semiconductors, insulators and the like.Type: GrantFiled: March 17, 2003Date of Patent: May 1, 2007Assignee: The Trustees of the University of PennsylvaniaInventors: I-Wei Chen, Alexander Mamchik
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Patent number: 7189444Abstract: The invention relates to a cladding resin composition curable by heat, ultraviolet radiation, an electron beam or the like. The composition comprises a polyoxyalkylene polyol phosphate ester (hydroxyl value: 10–2,000 mg KOH/g) and a polymerizable or reactive functional group-containing compound. This composition is highly conductive as it is and, without incorporation of the conventional conductive additives, can be used successfully in the field of coatings and protective films where electric conductivity is a requisite.Type: GrantFiled: April 1, 2003Date of Patent: March 13, 2007Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Tetsuo Shiraiwa, Shigeo Mori
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Patent number: 7169463Abstract: An aqueous glass fiber sizing composition that includes a polymeric film forming component, at least one silane coupling agent, and one or more lubricants is provided. The polymeric film forming component of the sizing composition includes a silanated polyvinyl acetate, an epoxidized polyvinyl acetate, and a modified epoxy emulsion. In preferred embodiments, the film formers are present in the sizing composition in ratios of 70:25:5, 50:25:25, or 63:18:18 of silanated polyvinyl acetate, epoxidized polyvinyl acetate, and modified epoxy emulsion respectively. Fibers sized with the sizing composition in a sheet molding compound process have improved wet-out characteristics.Type: GrantFiled: June 21, 2004Date of Patent: January 30, 2007Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Steven E. Baker, Jeffrey L. Antle, Donald R. Holman
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Patent number: 7143611Abstract: Embodiments of the invention include an optical fiber preform assembly and a method for making optical fiber using the preform assembly. The assembly includes a preform core rod, at least one overclad tube formed around the preform core rod, a handle attached to one end of the overclad tube, and a refractory material positioned in the overclad tube between the preform core rod and the handle. The refractory material reduces if not prevents movement of the preform core rod into the handle during the fiber draw process. Preferably, the refractory material is made of, e.g., magnesium oxide and/or aluminum oxide, and has a melting point, e.g., greater than approximately 2000 degrees Celsius. Embodiments of the invention also include a method for making optical fiber using this preform assembly.Type: GrantFiled: September 19, 2003Date of Patent: December 5, 2006Assignee: Fitel USA CorpInventors: Joseph P. Fletcher, III, Andrew W. Jones, Thomas J. Miller, Don H. Smith, Shunhe Xiong
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Patent number: 7135228Abstract: Fibers having improved resistance to moisture at elevated temperatures comprise at least two elastic polymers, one polymer heat-settable and the other polymer heat-resistant, the heat-resistant polymer comprising at least a portion of the exterior surface of the fiber. The fibers typically have a bicomponent and/or a biconstituent core/sheath morphology. Typically, the core comprises an elastic thermoplastic urethane, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer.Type: GrantFiled: July 15, 2002Date of Patent: November 14, 2006Assignee: Dow Global Technologies Inc.Inventors: Ashish Sen, John Klier, Rajen M. Patel, Hongyu Chen, Thoi H. Ho
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Patent number: 7128971Abstract: A coated glass fiber for reinforcing a rubber includes a glass fiber, a first coating layer covering the glass fiber, and a second coating layer covering the first coating layer. The first coating layer is prepared by a process including (a) dispersing a resorcinol-formaldehyde resin and a rubber latex in water to prepare a first coating solution; (b) applying the first coating solution to the glass fiber to form a first precursory layer; and (c) drying the first precursory layer into the first coating layer. The second coating layer is prepared by a second process including (d) dispersing bisallylnadiimide, a rubber elastomer, a vulcanizing agent, and an inorganic filler in an organic solvent to prepare a second coating solution; (e) applying the second coating solution to the first coating layer to form a second precursory layer; and (f) drying the second precursory layer into the second coating layer.Type: GrantFiled: January 22, 2004Date of Patent: October 31, 2006Assignee: Central Glass Company, LimitedInventors: Hiroyuki Hyakutake, Toshiya Monden
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Patent number: 7087302Abstract: The present invention relates to a sizing composition for use on glass fibers which are used to reinforce plastic resins used in the formation of fiber-reinforced plastics (FRPs). The sizing composition comprises a copolymer formed from at least one functional monomer that is selected from the group consisting of hydroxy, phenyl and alkoxylated functional groups. The glass fibers sized with the sizing composition of the invention have excellent computability with resins used in forming FRPs, as seen by a low level of white glass.Type: GrantFiled: February 24, 2003Date of Patent: August 8, 2006Assignee: Celanese International CorporationInventors: Charles R. Key, Rajeev Farwaha
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Patent number: 7078098Abstract: The present invention relates to composites useful for shielding electromagnetic radiation and their manufacture. In general, the composites of the present invention comprise conductive fibers which are highly dispersed in a polymer matrix. The invention also relates to pellets and their manufacture. Such pellets are useful in the manufacture of composites comprising highly dispersed conductive fibers in a polymer matrix.Type: GrantFiled: June 30, 2000Date of Patent: July 18, 2006Assignee: Parker-Hannifin CorporationInventors: Andrew Bencich Woodside, Dale Edwin McCoy
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Patent number: 7045210Abstract: The invention relates to a reinforcing bar for mineral building materials, particularly for cement. The inventive reinforcing bar (10) is made of a bar of plastic material reinforced by fiber, which has a central, elongate core (12) and several ribs (14) which extend along the length of the core, which are disposed at an angular distance from each other, which form a cross or a star in the cross section thereof and which are twisted around the core axis (16) in a helical manner.Type: GrantFiled: January 9, 2002Date of Patent: May 16, 2006Assignee: Sika Schweiz AGInventor: Alexander Bleibler
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Patent number: 7032637Abstract: A tire, in particular an elastomeric pneumatic tire, reinforced by lengths of a monofilament elongate composite element of long glass fibers impregnated in a thermoset resin having a glass transition temperature Tg greater than 130° C., in which the fibers are all parallel to each other, the elongate composite element having, under a bending stress an elastic deformation in compression of at least 2%, in flexion a breaking stress in compression greater than the breaking stress in extension.Type: GrantFiled: June 15, 2001Date of Patent: April 25, 2006Assignee: Conception et Developpement Michelin S.A.Inventor: Jean-Paul Meraldi
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Patent number: 6986899Abstract: A composition for coating an implantable prosthesis, such as a stent is disclosed. A method of forming the composition is also disclosed.Type: GrantFiled: August 12, 2003Date of Patent: January 17, 2006Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Syed F. A. Hossainy, Debbie Sanders-Millare, Steven Z. Wu
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Patent number: 6949289Abstract: The present invention provides an at least partially coated fiber strand comprising a plurality of glass fibers having a coating composition on at least a portion of at least one of the glass fibers, the coating composition comprising at least one coating comprising greater than 20 weight percent on a total solids basis of a plurality of particles selected from inorganic particles, organic hollow particles, composite particles, and mixtures of any of the foregoing, wherein the plurality of particles have a Mohs' hardness value which does not exceed the Mohs' hardness value of the glass fibers.Type: GrantFiled: November 3, 2000Date of Patent: September 27, 2005Assignee: PPG Industries ohio, Inc.Inventors: Ernest L. Lawton, Vedagiri Velpari, William B. Rice, Walter J. Robertson, Bruce E. Novich, Xiang Wu, Kami Lammon-Hilinski
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Patent number: 6929857Abstract: Fiber for reinforcing rubber products, which comprises glass fiber coated with a coating film formed by a treating agent comprising a water-soluble condensate of resorcinol and formaldehyde, a latex of a solid acrylonitrile/butadiene copolymer and a latex of a liquid acrylonitrile/butadiene copolymer.Type: GrantFiled: March 11, 2002Date of Patent: August 16, 2005Assignees: Honda Giken Kogyo Kabushiki Kaisha, Asahi Fiber Glass Company, LimitedInventors: Shuji Watanabe, Kaoru Shimamura, Koji Hattori, Masayoshi Abe, Kimihiro Ando
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Patent number: 6929858Abstract: Glass fibers are disclosed. The glass fibers can be used, for example, in a lead acid battery.Type: GrantFiled: March 25, 2002Date of Patent: August 16, 2005Assignee: Squannacook Technologies LLCInventors: George C. Zguris, Antonio L. Ferreira
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Patent number: 6911259Abstract: A process for producing glass fiber-reinforced thermoplastic resin pellets, which comprises a step of drawing out glass fiber strands from the inside of glass fiber rolls and introducing them into a resin impregnation die, a step of supplying a molten thermoplastic resin into the resin impregnation die and impregnating the glass fiber strands with the thermoplastic resin, a step of drawing out the glass fiber strands impregnated with the thermoplastic resin from the resin impregnation die and cooling and solidifying the thermoplastic resin to obtain a linear molded product, and a step of cutting the molded product into a predetermined length, wherein as the glass fibers, glass fiber strands drawn out from rolls, each roll obtained by bundling monofilaments having a diameter of from 6 to 25 ?m and winding them so that the inner diameter will be from 18 to 50 cm, are used.Type: GrantFiled: June 11, 2003Date of Patent: June 28, 2005Assignee: Asahi Fiber Glass Company, LimitedInventors: Toru Mizukami, Kengo Ozaki
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Patent number: 6911258Abstract: A cable containing at least one optical fiber and at least one covering layer containing a material including an organic compound and an inorganic compound, wherein the inorganic compound has a layered structure and the organic compound is inserted between the layers of the inorganic compound.Type: GrantFiled: April 28, 2000Date of Patent: June 28, 2005Assignee: AlcatelInventors: Madeleine Prigent, Sophie Vanpoulle
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Patent number: 6890650Abstract: A sizing composition for glass fibers comprises at least one film-former, at least one silane comprising an alkenyl group comprising a straight chain segment of at least five carbon atoms, wherein at least one carbon-carbon double bond is terminal and wherein the carbon atoms on the terminal double bond are unsubstituted, and at least one lubricant. The sizing composition can be used to coat glass fibers for use as reinforcement for cycloolefins that cure by the ring-opening metathesis polymerization (“ROMP”) reaction.Type: GrantFiled: July 23, 2003Date of Patent: May 10, 2005Assignee: PPG Industries Ohio, Inc.Inventor: Jerry C. Hedden
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Patent number: 6881479Abstract: A reinforcement fiber bundle and method for joining reinforcement fibers to reinforcement fiber bundles for reinforcement wherein a curable material is provided in which reinforcement fibers are bundled in a substantially parallel position and at least at the ends are joined, in which at least the ends of the reinforcement fibers are joined by means of an adhering substance that is substantially inert in relation to the non-cured curable material and that, when the reinforcement fiber bundles are mixed with at least the curable material, loses its cohesion.Type: GrantFiled: December 6, 2001Date of Patent: April 19, 2005Assignee: N. V. Bekaert S.A.Inventor: Yves Maurits Renë Vancraeynest
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Patent number: 6875509Abstract: Fiber for reinforcing rubber products, which comprises fiber coated with a coating film formed by a coating agent, wherein the coating agent comprises, as calculated as solid contents, 100 parts by mass of a rubber latex containing at least a vinylpyridine/styrene/butadiene terpolymer, from 7 to 18 parts by mass of a latex of a halogen-containing polymer, and from 2 to 10 parts by mass of a water-soluble condensate of resorcinol and formaldehyde.Type: GrantFiled: June 16, 2004Date of Patent: April 5, 2005Assignee: Asahi Fiber Glass Company, LimitedInventor: Kimihiro Ando
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Patent number: 6855424Abstract: A material and method for providing a laminate of at least two layers to provide breathability and moisture barrier properties without appreciably reducing elastic properties. A first material comprises a woven or nonwoven web and a second material comprises a cellular elastomer film or fiber. Such materials may be integrated into a laminate by forming said first material onto said second material, or by joining the two materials through chemical or physical means such as the use of adhesives. The second material can be prepared by mixing a cell opening agent with the elastomeric polymer resin and extruding the mixture at appropriate conditions whereby the cell opening agent decomposes or reacts to release a gas that forms cells in the elastomer film.Type: GrantFiled: December 28, 1999Date of Patent: February 15, 2005Assignee: Kinberly-Clark Worldwide, Inc.Inventors: Oomman Painumoottil Thomas, Michael Allen Daley, James Russell Fitts, Jr., Steven D. Flack, Jason Asher Bernstein
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Patent number: 6849331Abstract: A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder comprises a fibrous substrate with chemical treatment, applied thereto, comprising a polyester resin, a curing agent, a film former, and a thickener. Additionally, the string binder may be co-roved with one or more ends of a separate fibrous pre-form material to make a product suitable for use in various molding applications.Type: GrantFiled: November 22, 2000Date of Patent: February 1, 2005Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Martin C. Flautt, James R. Priest
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Patent number: 6849332Abstract: A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder comprises a fibrous carrier substrate covered with a solidified coating comprising a binder resin material having an acid value of less than about 30 mg KOH/g of resin. Additionally, the fibrous carrier substrate may be coated with at least one layer of a pre-coating or post-coating comprising a catalyst composition. The string binder may be co-roved with one or more ends of a separate fibrous reinforcing material to make a product suitable for use in various molding applications.Type: GrantFiled: June 14, 2000Date of Patent: February 1, 2005Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Brian William Ables, William G. Hager, Timothy W. Ramey, Jay J. Beckman, Diane M. Hulett
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Patent number: 6849333Abstract: The present invention is directed to a radiation curable primary coating composition and an optical fiber with said coating. The primary coating preferably results in excellent mechanical and physical properties, and when coated on optical fibers in a reduction in micro-bending transmission losses over optical fibers with conventional coatings. In one embodiment of this invention, it relates to a coated optical fiber comprising an optical fiber and a radiation cured primary coating wherein the radiation cured primary coating on the optical fiber comprises an oligomer and wherein the oligomer is formed from a reaction comprising a polyol having “m” hydroxyl functional groups, wherein “n” hydroxyl groups of said polyol are terminated in forming the oligomer and “m” is greater than “n”.Type: GrantFiled: January 25, 2002Date of Patent: February 1, 2005Assignee: Corning IncorporatedInventors: David N Schissel, Michael J Winningham
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Patent number: 6846563Abstract: A sizing composition which is useful for coating glass strands contains a solution having a solvent content of less than 5% by weight. The solution contains at least 45% by weight of components capable of curing. At least 40% of the components capable of curing have a molecular mass of between 750 and 5000. The components capable of curing contain at least one mixture containing a) one or more components having at least one acrylic reactive functional group and/or methacrylic reactive functional group, and b) one or more components having at least one primary amine reactive functional group and/or secondary amine reactive functional group.Type: GrantFiled: May 16, 2001Date of Patent: January 25, 2005Assignee: Saint-Gobain Vetrotex France S.A.Inventor: Patrick Moireau
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Patent number: 6844065Abstract: A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber has a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an olefin and at least one olefinically unsaturated comonomer selected from the group consisting of an unsaturated carboxylic acid, alkyl acrylate, alkyl methacrylate and vinyl ester.Type: GrantFiled: December 23, 2002Date of Patent: January 18, 2005Assignee: Dow Global Technologies, Inc.Inventors: Hari P. Reddy, Aleksander J. Pyzik, Ted A. Morgan, Sharon M. Allen, Jill R. Marra, Nicholas M. Shinkel
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Patent number: 6835447Abstract: The invention provides a rubber reinforcing cord that can be suitably used as a material for reinforcing rubber materials such as tires, belts and hoses and is excellent in fatigue resistance. This invention is also a rubber reinforcing cord in which a carbon fiber bundle is impregnated with a resin composition comprising a rubber, wherein the elastic modulus of dried film of the rubber latex at 25° C. (G′) is 0.4 MPa or less, and the carbon fiber bundle has a knot-breaking strength of 500 MPa or more.Type: GrantFiled: November 5, 2001Date of Patent: December 28, 2004Assignee: Toray Industries, Inc.Inventors: Takao Manabe, Haruhiko Kondo, Hajime Kishi
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Patent number: 6833182Abstract: A composition suitable for sizing of glass fibers is disclosed. The composition contains water dispersible, water-soluble or water emulsifiable resin selected from the group consisting of polyepoxide, polyester, polyvinyl acetate, polyacrylate and polyurethane, water, an organofunctional silane, and a nucleating agent. Optional components include emulsifiers, lubricants, wetting and anti-static agents. Glass fibers sized with the composition are suitable for preparing composites having improved mechanical properties.Type: GrantFiled: December 6, 1999Date of Patent: December 21, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Raymond Audenaert, Detlev Joachimi, Alexander Karbach, Stephan Kirchmeyer, Joachim Simon
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Patent number: 6828039Abstract: A magnetoresistive sensor including a lower electrode layer, a nanotube structure film composed of an insulator matrix and a plurality of nanotubes dispersively arranged in the insulator matrix, a magnetoresistive film provided on the nanotube structure film, and an upper electrode layer provided on the magnetoresistive film. Each nanotube is composed of a circular tubular nonmetal and a circular cylindrical metal surrounded by the circular tubular nonmetal. The nanotube structure film is partially etched at its central region to make conduction of the upper electrode layer and the lower electrode layer through the magnetoresistive film and the circular cylindrical metal of each nanotube present at the central region.Type: GrantFiled: March 13, 2002Date of Patent: December 7, 2004Assignee: Fujitsu LimitedInventor: Takahiko Sugawara
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Publication number: 20040197556Abstract: The present invention provides monofilaments coated with certain adhesive layers and methods to produce the coated filaments. Also provided are fabrics formed from the monofilaments. The coated monofilaments and fabrics provide improved adhesion with additional coating top layers.Type: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Inventors: Kenneth B. Atwood, Anne-Marie Coffin, John D. Feathers, Richard Allen Hayes, Charles F. Nelson
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Patent number: 6794032Abstract: The present invention relates to a long-fiber-reinforced polyolefin structure with a length of ≧3 mm, comprising from 0.1 to 90% by weight of at least one polyolefin, from 0.1 to 50% by weight of at least one polyamide, from 0.1 to 15% by weight of at least one modified polyolefin, from 5.0 to 75% by weight of at least one reinforcing fiber, from 0.1 to 5.0% by weight of at least one additive. The present invention further relates to a process for producing a long-fiber-reinforced polyolefin structure, where fiber bundles are passed through a flat-film die which has been charged with a melt made from polyolefin, polyamide, modified polyolefin, and dye and/or pigment, the immersed fiber bundles are passed through a shaping die, the fiber bundles are cooled, and the fiber bundles are chopped to the lengths of the structure transversely to the direction of running.Type: GrantFiled: October 31, 2002Date of Patent: September 21, 2004Assignee: Ticona GmbHInventors: Thomas Borgner, Joachim Heydweiller, Heinz Bernd, Gabriele Thomas
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Patent number: 6787226Abstract: Chopped strands having a sizing agent impregnated on glass fiber strands, to be used for a molded product of unsaturated polyester resin BMC, wherein the sizing agent comprises a urethane resin, a vinyl acetate resin and a silane coupling agent, and wherein the mass ratio of the urethane resin to the vinyl acetate resin is from 30:70 to 70:30.Type: GrantFiled: October 22, 2002Date of Patent: September 7, 2004Assignees: Asahi Fiber Glass Company Limited, Koito Manufacturing Co., Ltd.Inventors: Yoshirou Niino, Hideki Endou, Manabu Iizuka, Hisayoshi Daicho, Hideki Tanaka, Yuji Yoshimoto
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Patent number: 6759126Abstract: A solid phase microextraction (SPME) fiber including a fiber and a deactivated surface-bonded sol-gel coating on a portion of the fiber to form a solid phase microextraction coating on the portion of the fiber, wherein the solid-phase microextraction coating is capable of preconcentrating trace organic compounds in various matrices. A sol-gel method of preparing SPME fibers with chemically bonded stationary phase coatings that serve as solvent-free extraction media including the step of chemically bonding the sol-gel stationary phase with the SPME fiber surface during its creation through sol-gel reactions.Type: GrantFiled: July 13, 2001Date of Patent: July 6, 2004Assignee: University of South FloridaInventors: Abdul Malik, Dongxin Wang
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Patent number: 6743507Abstract: The present invention provides composites prepared from melt blending compositions that generally include cellulosic pulp fibers having an alpha-cellulose purity of greater than 80% by weight, at least one water soluble binder, at least one lubricant, at least one compatibilizer, and at least one matrix polymer. The present invention further provides advantageous temperature profiles and feeding arrangements to be used in conjunction with the melt blending of such composites. The composites of the present invention exhibit reduced discoloration and improved fiber dispersion.Type: GrantFiled: June 7, 2002Date of Patent: June 1, 2004Assignee: Rayonier Products and Financial Services CompanyInventors: Fred Barlow, Yash Khanna, Daren B. Pietsch, John Underwood
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Publication number: 20040096652Abstract: Unique thermoplastic monofilament fibers and yarns that exhibit heretofore unattained physical properties are provided. Such fibers are basically manufactured through the extrusion of thermoplastic resins that include a certain class of nucleating agent therein, and are able to be drawn at high ratios with such nucleating agents present, that the tenacity and modulus strength are much higher than any other previously produced thermoplastic fibers, particularly those that also simultaneously exhibit extremely low shrinkage rates. Thus, such fibers require the presence of certain compounds that quickly and effectively provide rigidity to the target thermoplastic (for example, polypropylene), particularly after heat-setting. Generally, these compounds include any structure that nucleates polymer crystals within the target thermoplastic after exposure to sufficient heat to melt the initial pelletized polymer and allowing such an oriented polymer to cool.Type: ApplicationFiled: November 16, 2002Publication date: May 20, 2004Inventors: Joseph R. Royer, Brian G. Morin, Martin E. Cowan
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Publication number: 20040096660Abstract: Fiber-reinforced laminates comprising at least two layers at least one of which comprises a polymer curable by irradiation with high-energy light, processes for producing them, and their use.Type: ApplicationFiled: November 12, 2003Publication date: May 20, 2004Applicant: Surface Specialties Austria GmbHInventors: Rami-Raimund Awad, Florian Lunzer
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Publication number: 20040086712Abstract: Improvements in preventing heat- and moisture-shrink problems in specific polypropylene tape fibers are provided. Such tape fibers are basically manufactured through the initial production of polypropylene films or tubes which are then slit into very thin, though flat (and having very high cross sectional aspect ratios) tape fibers thereafter. These inventive tape fibers (and thus the initial films and/or tubes) require the presence of relatively high amounts of certain compounds that quickly and effectively provide rigidity to the target polypropylene tape fiber. Generally, these compounds include any structure that nucleates polymer crystals within the target polypropylene after exposure to sufficient heat to melt the initial pelletized polymer and allowing such an oriented polymer to cool. The compounds must nucleate polymer crystals at a higher temperature than the target polypropylene without the nucleating agent during cooling.Type: ApplicationFiled: November 2, 2002Publication date: May 6, 2004Inventors: Brian G. Morin, Martin E. Cowan, Jack A. Smith