Plural Coatings Patents (Class 428/380)
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Patent number: 10726969Abstract: A multilayer insulated wire includes a conductor, an inner insulation layer, and an outer insulation layer. A gel fraction of the inner insulation layer defined below is not less than 80%. A gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%. An insulation covering layer including the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min. Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110° C. for 24 hours, then left at 20° C. and atmospheric pressure for 3 hours and vacuum-dried at 80° C.Type: GrantFiled: July 25, 2016Date of Patent: July 28, 2020Assignee: HITACHI METALS, LTD.Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Tamotsu Kibe, Mitsuru Hashimoto
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Patent number: 9960289Abstract: A solder joint material includes a copper-based metal material including mainly a copper, a surface-treated layer that is provided on the copper-based metal material and includes an amorphous layer including oxygen and a metal with a higher oxygen affinity than a copper, and a Sn-based solder plating layer provided on the surface-treated layer.Type: GrantFiled: September 26, 2014Date of Patent: May 1, 2018Assignee: HITACHI METALS, LTD.Inventors: Hideyuki Sagawa, Keisuke Fujito, Takayuki Tsuji, Hiromitsu Kuroda
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Patent number: 9769933Abstract: A printed circuit board includes a substrate, and a wiring provided on the substrate. The wiring includes a copper-based metal wire provided on the substrate and a surface-treated layer provided on the copper-based metal wire. The copper-based metal wire includes mainly a copper. The surface-treated layer includes an amorphous layer including oxygen and a metal with a higher oxygen affinity than the copper.Type: GrantFiled: October 15, 2014Date of Patent: September 19, 2017Assignee: HITACHI METALS, LTD.Inventors: Hideyuki Sagawa, Keisuke Fujito, Takayuki Tsuji, Kotaro Tanaka, Hiromitsu Kuroda
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Patent number: 9378868Abstract: A low-smoke, non-halogenated flame retardant composition made from and/or containing polypropylene, magnesium dihydroxide, and aluminum magnesium layered double hydroxide modified with a hydrogenated fatty acid is disclosed. A composition containing and/or made from (a) a polypropylene, (b) a first distribution of magnesium dihydroxide particles having a d50 in the range of about 0.75 microns to about 1.25 microns, (c) a second distribution of magnesium dihydroxide particles having a d50 in the range of about 1.50 microns to about 3.50 microns, and (d) aluminum magnesium layered double hydroxide modified with a hydrogenated fatty acid is disclosed. A power cable having a jacket made from and/or containing a low-smoke non-halogenated flame retardant composition is also disclosed.Type: GrantFiled: September 5, 2013Date of Patent: June 28, 2016Assignee: Equistar Chemicals, LPInventors: Cindy Flenniken, Chun D. Lee
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Patent number: 9243559Abstract: An aircraft gas turbine engine has first and second electrical harnesses formed from respective first and second flexible printed circuit boards which each provides a plurality of spaced conductive tracks. The conductive tracks carry signal types which either (i) provide engine control and can cause hazardous engine conditions in the event of their failure, (ii) detect or prevent hazardous conditions of the engine, or (iii) are not of type (i) and/or of type (ii). The first flexible printed circuit board provides all the conductive tracks which carry signals of type (i) or the first flexible printed circuit board provides all the conductive tracks which carry signals of type (ii). The second flexible printed circuit board provides all the remaining conductive tracks. The first electrical harness is fire-resistant for a period of five minutes without any exposure of its conductive tracks so that the conductive tracks can carry their signals.Type: GrantFiled: October 24, 2012Date of Patent: January 26, 2016Assignee: ROLLS-ROYCE plcInventors: Richard Andrew Young, Mark Harrison
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Patent number: 8992800Abstract: There is provided an electroactive material having Formula I wherein: Q is the same or different at each occurrence and can be O, S, Se, Te, NR, SO, SO2, P, PO, PO2, and SiR2; R is the same or different at each occurrence and can be hydrogen, alkyl, aryl, alkenyl, or alkynyl; R1 through R10 are the same or different and can be hydrogen, alkyl, aryl, halogen, hydroxyl, aryloxy, alkoxy, alkenyl, alkynyl, amino, alkylthio, phosphino, silyl, —COR, —COOR, —PO3R2, —OPO3R2, or CN.Type: GrantFiled: May 13, 2013Date of Patent: March 31, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Hong Meng, Dengfu Wang
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Publication number: 20150064465Abstract: A low-smoke, non-halogenated flame retardant composition made from and/or containing polypropylene, magnesium dihydroxide, and aluminum magnesium layered double hydroxide modified with a hydrogenated fatty acid is disclosed. A composition containing and/or made from (a) a polypropylene, (b) a first distribution of magnesium dihydroxide particles having a d50 in the range of about 0.75 microns to about 1.25 microns, (c) a second distribution of magnesium dihydroxide particles having a d50 in the range of about 1.50 microns to about 3.50 microns, and (d) aluminum magnesium layered double hydroxide modified with a hydrogenated fatty acid is disclosed. A power cable having a jacket made from and/or containing a low-smoke non-halogenated flame retardant composition is also disclosed.Type: ApplicationFiled: September 5, 2013Publication date: March 5, 2015Applicant: Equistar Chemicals, LPInventors: Cindy Flenniken, Chun D. Lee
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Publication number: 20150037581Abstract: The present disclosure comprises providing a cable core encased in a polymeric layer, cabling a first armor wire layer about the cable core, cabling a second armor wire layer about the first armor wire layer to form the cable, each of the armor wire layers comprising a plurality of strength members, at least one of the armor wire layers comprising a plurality of strength members having a polymeric layer bonded thereto.Type: ApplicationFiled: July 22, 2011Publication date: February 5, 2015Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Joseph Varkey, Jushik Yun, Vadim Protasov, Sheng Chang
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Patent number: 8906814Abstract: One aspect of the invention relates to a method of preparing metal oxide coated substrates for various potential applications, and the coated substrate formed thereby.Type: GrantFiled: August 17, 2009Date of Patent: December 9, 2014Assignee: Massachusetts Institute of TechnologyInventors: Jung Ah Lee, Randall M. Hill, Paula T. Hammond, Gregory C. Rutledge, Kevin C. Krogman
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Publication number: 20140349533Abstract: Fibers sized with a coating of amorphous polyetherketoneketone are useful in the preparation of reinforced polymers having improved properties, wherein the amorphous polyetherketoneketone can improve the compatibility of the fibers with the polymeric matrix.Type: ApplicationFiled: August 6, 2014Publication date: November 27, 2014Applicant: Arkema Inc.Inventors: Christopher A. Bertelo, Gregory S. O'Brien
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Publication number: 20140349111Abstract: Flame retardant thermoplastic polyurethane (TPU) compositions are disclosed having a flame retardant package comprising an organo-phosphinate component, an organo-phosphate component, and a polyhydric alcohol. The flame retardant components may be present in an amount from about 5 to about 40 weight percent of the phosphinate compound; from about 5 to about 20 weight percent of the phosphate compound, and from about 0.1 to about 15 weight percent of the polyhydric alcohol, based on the total weight of the TPU composition. Processes are disclosed to make the TPU compositions and to make wire and cable constructions employing the TPU compositions as the jacket of the wire and cable constructions. The TPU compositions exhibit excellent flame retardant capabilities as measured by Limited Oxygen Index testing and/or UL 94 Vertical Burn tests.Type: ApplicationFiled: April 30, 2014Publication date: November 27, 2014Inventors: Sridhar K. Siddhamalli, Carl A. Brown
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Publication number: 20140224653Abstract: Provided is a silver nanowire-containing composition for a biosensor strip, a biosensor strip comprising the same and its preparation method. The biosensor strip comprises a conductive pattern layer made of the silver nanowire-containing composition. With the aspect ratio of 50 to 500, the silver nanowire-containing composition has good dispersion and high conductivity, such that the biosensor strip comprising the same can have high stability and provide a more accurate and efficient detection.Type: ApplicationFiled: January 29, 2014Publication date: August 14, 2014Applicants: Industrial Technology Research Institute, K Cubic Research Co., Ltd.Inventors: Wen-Hsien Sun, Hou-Yu Lee, Shyh-Dar Ko, Ching-Chung Ko
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Publication number: 20140196930Abstract: An insulated wire for high temperature applications features a conductor and a protective outer shell layer. A bonding layer is positioned between the conductor and the protective outer shell layer. The bonding layer secures the protective outer shell layer to the conductor.Type: ApplicationFiled: January 14, 2014Publication date: July 17, 2014Applicant: Harbour Industries LLCInventors: Bruce W. De Bree, Yannick Demers, Daniel Cusson
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Patent number: 8728959Abstract: The present invention relates to a textile digital band which is capable of providing a high-speed communication path with surrounding computing devices, through easy and convenient attachment thereof to a conventional garment, and a fabrication method thereof. For this purpose, disclosed herein is a textile digital band comprising a plurality of warps formed parallel to each other in the first direction, and a plurality of wefts formed parallel to each other in the second direction perpendicular to the first direction, wherein the warp includes at least one digital yarn through which electrical currents can flow.Type: GrantFiled: June 27, 2008Date of Patent: May 20, 2014Assignee: Korea Institute of Industrial TechnologyInventors: Gi Soo Chung, Dae Hoon Lee, Jae Sang An
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Patent number: 8722186Abstract: A yarn or multi-fiber formed of a plurality of micron diameter stainless steel monofilaments which have been rendered more conductive by one or more coatings of electrolytically-deposited metal or metal alloy materials. The metallized yarn provided by the invention has a very low electrical resistance, with consequent benefit in electrical performance, and is particularly useful as an RFI/EMI shielding material.Type: GrantFiled: June 14, 2012Date of Patent: May 13, 2014Assignee: Micrometal Technologies, Inc.Inventors: Thomas F. Burke, James E. Haller
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Publication number: 20140093730Abstract: The invention is directed to a silane crosslinkable polymer composition which comprises a polyolefin (a) bearing hydrolysable silane group(s) containing units. The polymer composition is suitable for producing crosslinkable articles, preferably one or more layers of a cable. The formed article, preferably a cable, is preferably crosslinked before the enduse thereof.Type: ApplicationFiled: April 5, 2012Publication date: April 3, 2014Applicant: BOREALIS AGInventors: Kristian Dahlen, Bernt-Ake Sultan, Martin Anker, Perry Nylander, Ola Fagrell
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Patent number: 8673438Abstract: A solid electrolyte and a piezoelectric material are incorporated into composite shaped articles to provide them with self-healing and adaptive qualities. The piezoelectric constituent converts the mechanical energy concentrated in critical areas into electrical energy which, in turn, guides and drives electrolytic transport of mass within the solid electrolyte towards, and its electrodeposition at critical areas to render self-healing and adaptive effects.Type: GrantFiled: July 10, 2009Date of Patent: March 18, 2014Inventors: Parviz Soroushian, Anagi Manjula Balachandra
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Publication number: 20130316174Abstract: Flame retardant thermoplastic polyurethane (TPU) compositions are disclosed having a flame retardant package comprising an organo-phosphinate component, an organo-phosphate component, and a polyhydric alcohol. The flame retardant components may be present in an amount from about 5 to about 40 weight percent of the phosphinate compound; from about 5 to about 20 weight percent of the phosphate compound, and from about 0.1 to about 15 weight percent of the polyhydric alcohol, based on the total weight of the TPU composition. Processes are disclosed to make the TPU compositions and to make wire and cable constructions employing the TPU compositions as the jacket of the wire and cable constructions. The TPU compositions exhibit excellent flame retardant capabilities as measured by Limited Oxygen Index testing and/or UL 94 Vertical Burn tests.Type: ApplicationFiled: August 1, 2013Publication date: November 28, 2013Applicant: Lubrizol Advanced Materials, Inc.Inventors: Sridhar K. Siddhamalli, Carl A. Brown
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Publication number: 20130269295Abstract: A method for packing polycrystalline silicon in the form of fragments or round rods, wherein at least one film in each case is inserted into a cuboidal cardboard box matched to the dimensions of the polycrystalline silicon to be packed, the polycrystalline silicon is introduced into the at least one film, the at least one film of thickness 10 to 1000 ?m subsequently being welded and enclosing the polycrystalline silicon, and this at least one film being surrounded by a further film having a reinforcing structure or by a shaping element.Type: ApplicationFiled: April 12, 2013Publication date: October 17, 2013Applicant: WACKER CHEMIE AGInventors: Joachim MATTES, Bruno LICHTENEGGER, Matthias VIETZ
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Publication number: 20130108851Abstract: A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound of the formula MO—Z—OM wherein M is an alkali metal salt and Z is an aromatic C6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C1-8 alkyl groups, 1 to 8 halogen atoms, or a combination thereof, with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, from more than 45 to less than 75 weight percent of a 3,3?-bis(halophthalimide) of the formula less than 10 weight percent of a 3,4?-bis(halophthalimide) of the formula and from more than 45 to less than 75 weight percent of a (4,4?-bis(halophthalimide) of the formulaType: ApplicationFiled: October 28, 2011Publication date: May 2, 2013Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Matthew L. Kuhlman, Gurulingamurthy M. Haralur
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Patent number: 8426020Abstract: The invention provides an optical fiber coated with a Supercoating, wherein the Supercoating comprises at least two layers, wherein the first layer is a Primary Coating that is in contact with the outer surface of the optical fiber and the second layer is a Secondary Coating in contact with the outer surface of the Primary Coating, wherein the cured Primary Coating on the optical fiber has the following properties after initial cure and after one month aging at 85° C. and 85% relative humidity: A) a % RAU of from about 84% to about 99%; B) an in-situ modulus of between about 0.15 MPa and about 0.60 MPa; and C) a Tube Tg, of from about ?25° C. to about ?55° C.; wherein the cured Secondary Coating on the optical fiber has the following properties after initial cure and after one month aging at 85° C. and 85% relative humidity: A) a % RAU of from about 80% to about 98%; B) an in-situ modulus of between about 0.60 GPa and about 1.90 GPa; and C) a Tube Tg, of from about 50° C. to about 80° C.Type: GrantFiled: December 13, 2007Date of Patent: April 23, 2013Assignee: DSM IP Assets B.V.Inventors: Steven R. Schmid, Petrus Jacobus Hubertus Niels, Paulus Antonius Maria Steeman, Xiaosong Wu, Wendell Wayne Cattron, Tyson Dean Norlin, Edward J. Murphy, John M. Zimmerman, Anthony Joseph Tortorello
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Patent number: 8361618Abstract: A composite configured to release refrigerant therefrom comprises a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite or combinations of two or more thereof having bonded thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal comprising alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0.Type: GrantFiled: April 30, 2010Date of Patent: January 29, 2013Assignee: Rocky ResearchInventors: Uwe Rockenfeller, Kaveh Khalili
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Publication number: 20120301718Abstract: Provided is a metal-resin composite provided with a layer consisting of a heat-resistant resin composition having a low permittivity or a low dielectric loss tangent. The composite can exhibit a low thermal expansion coefficient and a reduced transmission loss of an electric signal. The composite comprises a metal and a resin layer (I). The resin layer (I) is made from a resin composition prepared by blending (A) a heat-resistant resin that exhibits a relative permittivity of 2.3 or more at a frequency of 1 MHz with (B) polyolefin particles having a mean particle diameter of 100 [mu]m or less. The resin composition has both a continuous phase of the heat-resistant resin (A) and a dispersed phase of the polyolefin particles (B), with the relative permittivity of the resin composition being lower than that of the heat-resistant resin (A).Type: ApplicationFiled: January 27, 2011Publication date: November 29, 2012Inventors: Katsunori Nishiura, Masahiro Toriida, Wataru Yamashita
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Patent number: 8134073Abstract: Bond wires for integrated circuits are implemented using a variety of methods. Using one such method, a composite bond wire is produced for use in an integrated circuit. A conductive material is melted and mixed with a material of particles less than 100 micrometers in size to create a mixture. The mixture is used to create the composite bond wire. A composite wire having an inner core and an outer layer having a higher conductivity than the inner core is also provided. The outer layer is designed to be thicker than the skin depth at the operating frequency for carrying AC signals.Type: GrantFiled: May 25, 2007Date of Patent: March 13, 2012Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Chris Wyland
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Publication number: 20120015208Abstract: The present invention relates to a method of accomplishment of a hybrid cord comprising an inner layer (1) in steel cord, an intermediate layer (2) in a high module and high toughness fibre and an outer layer (3) in a Polyolefin fibre. The present invention also refers to its application in an 8 (4×2) cords braided hybrid cable or any other type of hybrid cable presenting another construction, in braided or twisted cables.Type: ApplicationFiled: July 14, 2011Publication date: January 19, 2012Applicant: MANUEL RODRIGUES D'OLIVEIRA SA & FILHOS, S.A.Inventor: Miguel Lages Malafaya Oliveira Sá
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Patent number: 7897255Abstract: A porous substrate and method of forming a porous substrate including providing a fiber material, providing at least one extrusion aid, and providing at least one washcoat precursor. The fiber material, the at least one extrusion aid and the at least one washcoat precursor are mixed to provide an extrudable batch. The extrudable batch is extruded into a green substrate. The green substrate is fired to form a porous rigid substrate and to form a washcoat at least partially coating the fiber material.Type: GrantFiled: September 6, 2007Date of Patent: March 1, 2011Assignee: GE02 Technologies, Inc.Inventors: James Jenq Liu, Bilal Zuberi
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Publication number: 20100323138Abstract: Object: To provide an EMI suppression flat yarn, an EMI suppression article using the flat yarn, and a method for manufacturing the flat yarn and article that exhibit excellent flexibility, do not become cracked or rigid even when attached to curved portions, wire harnesses, or electrical cables, and enable electronic devices to be lighter, flatter, shorter, and smaller.Type: ApplicationFiled: May 1, 2009Publication date: December 23, 2010Inventors: Takashi Yoshioka, Hiroki Ohsugi
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Publication number: 20100130082Abstract: One aspect of the invention relates to a method of preparing metal oxide coated substrates for various potential applications, and the coated substrate formed thereby.Type: ApplicationFiled: August 17, 2009Publication date: May 27, 2010Applicant: Massachusetts Institute of TechnologyInventors: Jung Ah Lee, Randall M. Hill, Paula T. Hammond, Gregory C. Rutledge, Kevin C. Krogman
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Patent number: 7722952Abstract: A composite configured to release refrigerant therefrom comprises a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite having bonded thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal selected from the group consisting of alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0.3 grams/cc of open substrate material volume, and a coating composition thereon configured to prevent release of internal gaseous refrigerant therethrough at ambient temperatures and pressure and capable of penetration of gaseous refrigerant therethrough from the composite interior at temperatures causing internal gas pressures of 15% or more above exterior pressure for such refrigerant release.Type: GrantFiled: January 4, 2005Date of Patent: May 25, 2010Assignee: Rocky ResearchInventors: Uwe Rockenfeller, Kaveh Khalili
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Publication number: 20100092776Abstract: A string for use in a string ribbon crystal has a base portion with a refractory material, and an externally exposed layer radially outward of the refractory material. The base portion has a coefficient of thermal expansion that is generally matched with the coefficient of thermal expansion for silicon. The externally exposed layer has a contact angle with silicon of between about 15 and 120 degrees.Type: ApplicationFiled: December 9, 2009Publication date: April 15, 2010Applicant: EVERGREEN SOLAR, INC.Inventors: Christine Richardson, Weidong Huang, Richard Wallace, Daniel Doble, Scott Reitsma
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Patent number: 7610994Abstract: A compensating cable adapted to attach to an elevator car is provided, wherein the compensating cable includes two portions connected by an arcuate portion. The arcuate portion of the compensating cable defines a loop having an extended diameter such that the compensating cable is capable of attaching to a centerline of the elevator car. Thus, the weight force exerted by the compensating cable on the elevator car may be localized about the centerline such that the elevator car is substantially balanced about the centerline while in operation. In some instances, the compensating cable includes a selected structure and materials suitable for forming an arcuate portion having a suitable loop diameter for attaching the compensating cable to the centerline of the elevator car. An associated system and method are also provided.Type: GrantFiled: May 13, 2005Date of Patent: November 3, 2009Assignee: Draka Elevator ProductsInventor: Dillard Hairston Green
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Publication number: 20090258228Abstract: Spring steel wire is formed by drawing steel wire including a phosphate film, the weight of the film being in the range of 3.0 to 5.5 g/m2, and R/d being in the range of 1.06×10?3 to 3.92×10?3 where R represents surface roughness; and d represents the diameter of the spring steel wire.Type: ApplicationFiled: December 5, 2006Publication date: October 15, 2009Applicants: Sumitomo (SEI) Steel Wire Corp., Sumitomo Electric Tochigi Co., Ltd.Inventors: Akifumi Matsuoka, Yuichi Sano, Kenichi Okamoto
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Publication number: 20080226910Abstract: A method of making a load bearing member (30) for an elevator system (20) includes placing at least one tension member (32) adjacent one side (60) of a first layer (36) of a polymer material. A second layer (38), comprising a urethane in a disclosed example, is added adjacent to at least the one side (60) of the first layer (36) such that the tension member (32) is between the first layer (36) and the second layer (38). Such a technique allows for eliminating the bridges typically used to support the tension members in molding devices. Eliminating such bridges eliminates the resulting grooves associated with previous arrangements. Providing a grooveless exterior on the jacket (34) of the load bearing member (30) eliminates a significant source of potential vibration and noise in an elevator system.Type: ApplicationFiled: September 13, 2005Publication date: September 18, 2008Inventors: Hugh O'Donnell, Hubert E. Goeser
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Publication number: 20080206560Abstract: Provided are a phosphate coated stainless steel wire for cold heading and a self-drilling screw using the stainless steel wire. Since a phosphate coating is formed on a surface of the stainless steel wire, cold headability and clamping force can be significantly improved, and since outer appearance is improved, a post-process after a heading is not required.Type: ApplicationFiled: November 28, 2007Publication date: August 28, 2008Inventors: Ju Hwan PARK, Ki Hong KIM, Jeong Won HA, Sang Jin KIM, Jong Gik HAN
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Patent number: 7208134Abstract: One aspect of the present invention relates to magnetic nanoparticles colloidally stabilized in aqueous milieu by association with an organic phase. The organic phase may be either a fluorinated polymer or an organic hydrocarbon bilayer, wherein the two layers are chemically bonded to each other. The stabilized particles are further non-toxic and provide useful enhancements in bioprocesses. Another aspect of the present invention relates to compositions comprising an oxygen-dissolving fluid vehicle and surface modified, nanometer-sized magnetic particles. The inventive compositions have utility in a wide range of applications, but are particularly suitable for use as recyclable oxygen carriers, separation and purification vehicles, and bioprocessing media, including fermentation processes.Type: GrantFiled: December 20, 2004Date of Patent: April 24, 2007Assignee: Massachusetts Institute of TechnologyInventors: Lev E. Bromberg, T. Alan Hatton, Daniel I. C. Wang, Jin Yin, Bernat Olle
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Patent number: 7152644Abstract: A method of manufacturing a rubber reinforcing steel cord is provided, wherein the steel cord has a steel wire plated with metal containing copper and having on its surface an oil layer containing a cobalt compound, and includes an application step in which the oil containing a cobalt compound is applied to the steel wire or a steel cord plated with metal containing copper, and a step of twisting the steel wires.Type: GrantFiled: May 31, 2002Date of Patent: December 26, 2006Assignees: Sumitomo Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Shinichi Miyazaki, Osamu Toda, Yasuo Sakai
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Patent number: 7129289Abstract: A two-part sizing composition that imparts improved resistance to hydrolysis of reinforced composites including a size composition and a binder composition is provided. The size composition may include one or more coupling agents, one or more lubricants, and at least one wetting agent. The binder composition may include a copolymer formed from maleic anhydride and at least one other copolymerizable monomer, at least one crosslinking agent, and a surfactant or mixture of surfactants. In at least one exemplary embodiment, the maleic anhydride copolymer is a maleic anhydride-butadiene copolymer partial ammonium salt. The size composition may be applied to a reinforcing fiber material before the binder size material is applied. The two-part size composition may be applied to a reinforcing fiber material to form a reinforcing fiber product which may then be densified or compacted to form a densified reinforcing fiber product, such as a pellet.Type: GrantFiled: March 19, 2004Date of Patent: October 31, 2006Assignee: Owens Corning Composites S.P.R.L.Inventors: Willy H. Piret, Nadia Masson
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Patent number: 7067564Abstract: The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. In particular, the primary coatings have a cavitation strength at which a tenth cavitation appears (?10cav) of at least about 1.0 MPa as measured at a deformation rate of 0.20% min?1 and of at least about 1.4 times their storage modulus at 23° C. The coating preferably shows strain hardening in a relative Mooney plot, preferably has a strain energy release rate Go of about 20 J/m2 or more, and preferably has a low volumetric thermal expansion coefficient. The invention furthermore provides a method and apparatus for measuring the cavitation strength of a primary coating.Type: GrantFiled: November 21, 2001Date of Patent: June 27, 2006Assignee: DSM IP Assets B.V.Inventors: Markus J. H. Bulters, Gerrit Rekers, Philippe W. P . V. Bleiman, Jozef M. H. Linsen, Alexander A. M. Stroeks, Johannes A. Van Eekelen, Adrianus G. M. Abel, Marko Dorschu, Paulus A. M. Steeman
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Patent number: 7064154Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure, and comprises a lactone modified polyol.Type: GrantFiled: January 9, 2004Date of Patent: June 20, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Shengkui Hu, Alan B. Weissberg
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Patent number: 7026373Abstract: A polyamphoteric superabsorbent copolymer made up of polymerizerable acid monomer and of polymerizable base monomer and optionally a supplemental monomer. In particular, the invention includes a radiation curable coating composition that comprises from about 20 weight % to about 80 weight % of polymerizerable acid monomer and from about 20 weight % to about 80 weight of polymerizable base monomer; and from 0 weight % to about 50 weight % of supplemental monomer. On exposure to radiation the coating composition forms a polyamphoteric superabsorbent copolymer. The radiation curable coating composition may be used with suitable substrates.Type: GrantFiled: May 6, 2002Date of Patent: April 11, 2006Assignee: Stockhausen GmbHInventors: Scott J. Smith, Seungkoo Kang
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Patent number: 7022402Abstract: An asymmetric multi-layer insulative film of improved internal adhesive strength is made by combining a layer of polyimide and a high-temperature bonding layer, the high-temperature bonding layer being derived from a high temperature base polymer made of poly(tetrafluoroethylene-co-perfluoro[alkyl vinyl ether]) (PFA) and optionally blended with from 0–60 weight percent poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP). The polyimide and high-temperature bonding layer laminate optionally also contains a layer of unsintered, partially sintered, or totally sintered polytetrafluoroethylene (PTFE) bonded directly to the high-temperature bonding layer. In addition, the polyimide high-temperature bonding layer laminate may be adhered to a poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) adhesive primer layer to more effectively bond the polyimide core layer to the high-temperature bonding layer.Type: GrantFiled: July 14, 2003Date of Patent: April 4, 2006Assignee: E. I. du Pont de Nemours and CompanyInventor: Philip Roland Lacourt
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Patent number: 6896963Abstract: A two-part sizing system for making colorless, densified fiber pellets of a reinforcing fiber material. The densified product may be advantageously produced by first applying a precursor size composition to reinforcing fiber strands, chopping the reinforcing fiber strands into chopped strand segments, applying a binder size, and densifying the chopped strand segments to form densified fiber pellets. The binder size is formulated using a copolymer of maleic anhydride which generates a product free from discoloration. In the process of making the pellets, the sized chopped strands are densified by tumbling in a rotating chamber for a period of time sufficient to increase their density but insufficient to degrade the fibers to a point where composite articles formed from such pellets have lower tensile or impact strengths than comparable composite articles formed from unpelletized strand segments.Type: GrantFiled: December 19, 2002Date of Patent: May 24, 2005Assignee: Owens Corning Composites SPRLInventors: Willy H. Piret, Nadia A. Masson
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Patent number: 6872760Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure.Type: GrantFiled: February 6, 2003Date of Patent: March 29, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Shengkui Hu, Alan B. Weissberg
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Patent number: 6869981Abstract: The invention includes an optical fiber coating that exhibits the characteristics of a pressure sensitive adhesive. A viscoelastic window for the coating will include at least one set of coordinates that is within Quadrants 2, 3, or 4 or the Transition Flow Region of the Chang viscoelastic of the rheological master curves or will not include at least one set of coordinates that is not within Quadrant 1 of the Chang viscoelastic of the rheological master curves.Type: GrantFiled: March 1, 2002Date of Patent: March 22, 2005Assignee: Corning IncorporatedInventors: Edward J. Fewkes, Gregory F. Jacobs, Inna I. Kouzmina, Kevin R. McCarthy, Huan-Hung Sheng, Kristi L. Simonton
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Patent number: 6858657Abstract: The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq/g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.Type: GrantFiled: January 23, 2003Date of Patent: February 22, 2005Assignees: DSM IP Assets B.V., JSR CorporationInventors: Zen Komiya, Adrianus G. M. Abel, Duurt P. W. Alkema, Masahito Mase, Takashi Ukachi
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Patent number: 6830826Abstract: A coated metal reinforcement element for polymeric or elastomeric materials comprises a coating of: a polymer or prepolymer compatible with and co-polymerizable, co-vulcanizable or crosslinkable with said polymeric or elastomeric material to be reinforced, and bearing functional groups; either covalently bonding to the metal surface of said reinforcement element; or forming covalent bonds with the outward directed first functional groups of a mono-or multimolecular layer of a bifunctional adhesion promotor intercalated between said metal by its second functional groups. A method for the coating includes a one step and a two step procedure.Type: GrantFiled: April 13, 2001Date of Patent: December 14, 2004Assignee: N.V. Bekaert S.A.Inventors: Johan Van Brabant, Daniel Mauer, Richard Michalitsch, Francis Garnier, Philippe Lang
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Patent number: 6811875Abstract: The prevent invention provides a partial discharge-resistant wire enamel composition wherein at least one fine particle sol selected from the group of metal oxide fine particle sol and silicon oxide fine particle sol is dispersed, and 3 to 100 parts by weight of at least one fine particle selected from the group of a metal oxide fine particle and a silicon oxide fine particle is contained per 100 parts by weight of wire enamel resin. Accordingly, the partial discharge-resistant wire enamel composition having excellent dispersibility of inorganic fine particle can be obtained.Type: GrantFiled: February 16, 2001Date of Patent: November 2, 2004Assignee: Hitachi Cable, Ltd.Inventors: Hideyuki Kikuchi, Yoshiyuki Tetsu
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Patent number: 6740396Abstract: A cable comprising at least one conductor and at least one coating layer based on a composite material comprising: at least one polymer containing a predetermined quantity of polar groups; and at least one inorganic material with lamellar structure surface-treated with a predetermined quantity of a compatibilizer; in which said predetermined quantity of polar groups and said predetermined quantity of compatibilizer are selected in such a way that said inorganic material exhibits, in the composite material, a d-spacing value in X-ray diffraction analysis at least 20% higher with respect to the d-spacing value of the inorganic material as such.Type: GrantFiled: February 26, 2002Date of Patent: May 25, 2004Assignee: Pirelli Cavi e Sistemi S.p.A.Inventors: Antonio Carrus, Antonio Zaopo
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Patent number: 6689463Abstract: The present invention relates to a composition for coating optical fibers that includes a UV curable coating composition. The composition includes at least one component having at least one heterocyclic moiety capable of undergoing ring opening polymerization. The composition may also include at least one acrylate functional end group. The acrylate functional group may be on the same component as the heterocyclic moiety or on a second component. The cured composition has a Young's Modulus of at least about 100 MPa.Type: GrantFiled: December 18, 2001Date of Patent: February 10, 2004Assignee: Corning IncorporatedInventors: Kevin Y Chou, Michelle D Fabian, Jun Hou, Gregory F Jacobs, David N Schissel, Huan-Hung Sheng
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Patent number: 6689474Abstract: The present invention provides compositions comprising (a) a thermally stable polymer comprising resorcinol arylate polyester chain members substantially free of anhydride linkages linking at least two mers of the polymer chain, and (b) at least one auxiliary stabilizer additive selected from the group consisting of 2,2′-(1,4-phenylene)bis(4H-3,1-benzoxazin-4-one) and 1,3-bis[(2-cyano-3,3-diphenylacryloyl)oxy]-2,2-bis[[(2-cyano-3,3-diphenylacryloyl)oxy]methyl]propane. Both multilayer and unitary articles comprising the composition are also provided.Type: GrantFiled: December 5, 2002Date of Patent: February 10, 2004Assignee: General Electric CompanyInventors: James Edward Pickett, Joseph Anthony Suriano, Steven Thomas Rice, Xiangyang Li, Paul Dean Sybert