Abstract: A nonaqueous sizing for glass fibers useful for reinforcement of polymers. The sizing composition comprises one or more film formers miscible with the polymer to be reinforced, one or more coupling agents and one or more powders. The sizing composition of the invention provides a glass fiber which has improved processability and notched izod without any loss in dispersability characteristics of the glass pellets.
Type:
Grant
Filed:
December 23, 1998
Date of Patent:
June 4, 2002
Assignee:
Owens Corning Fiberglas Technology, Inc.
Inventors:
David G. Miller, Leonard J. Adzima, David J. Wamer
Abstract: There is disclosed an optical fiber core wire binder, comprising (A) a radical-polymerizable oligomer, (B) a radical-polymerizable monomer, (C) a photopolymerization initiator, and at least one compound selected from the group consisting of (D) modified silicone compounds and (E) nitrogen/sulfur atom-containing compounds, with the content of the compound selected from the group consisting of the components (D) and (E) being 0.01 to 20% by weight of the total of the components (A) to (E), and with the surface tension being 30 &mgr;N/m or less at 23° C. The optical fiber core wire binder can restrain bubbles from being involved or remaining when optical fiber core wires are being twisted while it is filled and applied around them, and it can form a cured product (solid material) that is excellent in workability and adhesion to a tension member.
Type:
Grant
Filed:
November 28, 2000
Date of Patent:
May 28, 2002
Assignees:
The Furukawa Electric Co., Ltd., Dainippon Ink and Chemicals, Inc.
Abstract: The invention pertains to a finish composition for treating yarns comprising a mixture of silicone oil emulsion and a wax emulsion wherein the amount of silicone oil is 0.5 to 30 wt. %, the amount of wax is 1.5 to 45 wt. %, the total of silicone oil and wax is 2 to 60 wt. %, and the ratio silicone oil:wax is <1, and to a yarn comprising the same. Preferably, the yarn is aramid yarn.
Abstract: A method for manufacture of an electric device having at least one conductor and a porous, fibrous and/or laminated electrically insulating dielectric system comprising a solid electrically insulating part impregnated with a dielectric fluid and a porous, fibrous and/or laminated body for use in an electric device produced with the method.
Type:
Grant
Filed:
August 3, 2000
Date of Patent:
May 21, 2002
Assignee:
ABB AB
Inventors:
Anna Kornfeldt, Johan Felix, Mikael Bergkvist, Per Nordberg
Abstract: Textile elements made of fibres which contain from 40% to 99.9% silicon dioxide and are coated with a silicone-containing emulsion are disclosed. The emulsion includes an anionically stabilized hydroxylated polydiorganosiloxane contains two hydroxyl groups which are linked with silicone by molecule and colloidal silica. The textile elements demonstrate considerable wear resistance. Methods of preparing the same are also disclosed.
Abstract: Provided is a glass fiber prepared by combining two glasses, preferably at least one of which is biosoluble, in a core/sheath arrangement. Such an arrangement can provide fibers potentially stronger than those of single glasses, while also having a permanent twist or curl to impart improved loft and recovery to blankets or mats comprised of them. Preferably, the core is offset from the center of the fiber. In one embodiment, the glass fibers of the present invention comprise a core and a sheath, where the core glass of the structure contracts as it cools to a greater extent than the sheath glass of the structure. Benefits are achieved in this manner, preferably with regard to biosoluble fibers.
Abstract: Disclosed is a dielectric gelling composition, exhibiting a thermo-reversible liquid-gel transition at a transition temperature, Tt, wherein the gel comprises an oil and a combined gelator system having molecules of a polymer compound together with fine dielectric particles with a particle size in the nanomneter, 6 nm, range, preferably a particle size within the range from 0.001 to 1000 nm, the use of this dielectric gelling composition in an electric device comprising one or more conductors, a casing or enclosure and an insulation system comprising the dielectric gelling composition. An electric DC-cable having a conductor and an electrical insulation comprising a solid part with a porous, fibrous and/or laminated structure impregnated with the dielectric gelling composition and a method for production of such DC-cable wherein the combined gelator is prepared prior to impregnation are also disclosed.
Type:
Grant
Filed:
August 3, 2000
Date of Patent:
May 7, 2002
Assignee:
ABB AB
Inventors:
Anna Kornfeldt, Johan Felix, Mikael Bergkvist, Per Nordberg, Christer Törnkvist, Thorsten Schütte
Abstract: A distinctive absorbent article includes an absorbent core having multiple absorbent layers, wherein the absorbent layers interact in such a manner which preferentially locates absorbed liquid in an appointed, high saturation wicking layer. The localization of the liquid within this wicking layer increases the potential of this layer to move liquid through capillary action due to the higher saturation level and increased amount of liquid available. The intake capability of the absorbent system is maintained or improved over current systems by keeping a second layer of the absorbent system at low saturation levels through as many insults of the product as possible, while providing optimum intake performance through appropriate control of the composite properties.
Type:
Grant
Filed:
March 3, 2000
Date of Patent:
May 7, 2002
Assignee:
Kimberly-Clark Worldwide, Inc.
Inventors:
Rob David Everett, Thomas Gerald Bolwerk, Richard Norris Dodge, II, Violet May Grube, Yong Li, Debra Jean McDowall, Shannon Kathleen Melius, Lawrence Howell Sawyer, David Louis Zenker, Xiaomin Zhang, Sylvia Bandy Little, Billie Jean Matthews, Sridhar Ranganathan, Stanley Michael Gryskiewicz, Kuo-Shu Edward Chang
Abstract: A method for making a shaped article or a shaped article having a volume resistivity of less than 102 ohm-cm with a desired combination of properties and processibility in an injection moldable composition. In particular the shaped articles formed include injection molded bipolar plates as current collectors in fuel cell applications.
Type:
Grant
Filed:
January 7, 2000
Date of Patent:
April 30, 2002
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Mukesh K. Bisaria, Peter Andrin, Mohamed Abdou, Yuqi Cai
Abstract: Disclosed is a composite hollow fiber membrane having a composite structure consisting of a homogeneous thin film interposed between porous substrate layers wherein the ratio of the oxygen permeation flux to the nitrogen permeation flux of the membrane is not less than 1.1 and wherein, after the membrane has been immersed in chemical liquids according to JIS K 7114, the percentage change of the ratio is within ñ10%. This composite hollow fiber membrane can be used to degas chemical liquids without any liquid leakage.
Abstract: A high frequency-resistant thermosetting coating is provided for the manufacture of high frequency-resistant enamelled wires. A high frequency-resistant enamelled wire produced from the high frequency-resistant thermosetting coating is also provided. The adhesion, crosslinking density, abrasion resistance, and softening resistance of the coating are excellent. With the same nominal diameter and a coating thickness more than 85 &mgr;m, the high frequency resistant lifetime of the enamelled wire produced from the high frequency-resistant thermosetting coating is 3 to 4 times as that of conventional thermoplastic enamelled wires.
Type:
Grant
Filed:
January 20, 2000
Date of Patent:
April 23, 2002
Assignee:
Tai-Electric Wire & Cable Co., Ltd.
Inventors:
Chih-Min Jang, Ru-Shi Liu, Chi-Ting Du, Wen-Cheng Wu, Yung-Chin Lin, Shang-Yen Chang, Wen-Lu Tai, Yao-Chung Tu, Wen-Hsiung Liu
Abstract: Hollow carbon microcoils are provided having a pitch that is substantially zero. Also provided are ceramic microcoils comprising a metal nitride, a metal carbide or a metal carbonitride. The invention also includes methods for producing such microcoils.
Type:
Grant
Filed:
March 18, 1999
Date of Patent:
April 9, 2002
Assignee:
Japan Science and Technology Corporation
Abstract: The carbon fibers of the present invention have a polymer having polar groups and groups capable of reacting with a matrix resin deposited on the fiber surfaces. The carbon fibers can be produced by depositing a monomer having both polar groups and groups capable of reacting with the matrix resin or a mixture of a monomer having polar groups and a monomer having groups capable of reacting with the matrix resin onto the fiber surface and heating to polymerize the monomer(s) forming a polymer having polar groups and groups capable of reacting with a matrix resin. The resultant fibers have excellent adhesion properties to the matrix resin and are unlikely to cause fluffing and fiber breakage.
Abstract: The invention relates to a cord comprising a core structure and one layer, said core structure consisting of 1 to 4 core filaments (1) having a diameter d1, d1, being greater than 0.15 mm and smaller than 0.40 mm, said layer consisting of n+m layer filaments (2) having a diameter d2 and being twisted in the same direction and at the same pitch as the core filaments (1) of said core, d2 being greater than or equal to d1−0.05 mm and being smaller than or equal to d1−0.015 mm, n being equal to the number of core filaments (1) and m being equal to six if n is greater than one and being equal to five if n is equal to one, whereby the core filaments (1) are visually different from the layer filaments (2).
Abstract: 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:
Grant
Filed:
December 29, 1999
Date of Patent:
April 2, 2002
Assignee:
Owens Corning Fiberglas Technology, Inc.
Inventors:
Nadia Masson, Jean-Marc Henrion, James Laurence Thomason, Leonard Joseph Adzima, Terry Linn Cheney, Willy Piret, Marc Cossement
Abstract: A coated cable includes a structural core made of twined wire or other suitable material, and an outer layer surrounding the structural core, such outer core being transparent to light. The cable further provides a material which is reflective to incident light, effective to reflect light from the cable in a manner discernable to an observer. In an advantageous embodiment, this is accomplished by a reflective layer interposed between the structural core and the outer layer, the reflective layer being provided in the form of a wrapped tape disposed below the outer layer.
Abstract: Metal matrix composite wires that include at least one tow comprising a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers carbon fibers, and mixtures thereof. The wires have certain specified characteristics such as roundness values, roundness uniformity values, and/or diameter uniformity values.
Type:
Grant
Filed:
July 14, 2000
Date of Patent:
February 5, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Colin McCullough, David C. Lueneburg, Paul S. Werner, Herve E. Deve, Michael W. Carpenter, Kenneth L. Yarina
Abstract: The present invention provides compositions, useful for making lyocell fibers, having a high hemicellulose content, a low copper number and including cellulose that has a low average degree of polymerization (D.P.) and a narrow molecular weight distribution. Further, the present invention provides processes for making compositions, useful for making lyocell fibers, having a high hemicellulose content, a low copper number and including cellulose that has a low average degree of polymerization and a narrow molecular weight distribution. The present invention also provides lyocell fibers containing a high proportion of hemicellulose.
Type:
Grant
Filed:
May 18, 2000
Date of Patent:
December 18, 2001
Assignee:
Weyerhaeuser Company
Inventors:
James E. Sealey, II, W. Harvey Persinger, Jr., Mengkui Luo, Vincent A. Roscelli, Amar N. Neogi
Abstract: A strand filling compound for electrical cables, and cables including such a compound, which prevents migration of water lengthwise of the stranded wires of the conductor of the cable. The strand filling compound has a low conductive filler content without reducing the level of conductivity of the compound and is readily pumpable at temperatures above about 100° C. The strand filling compound is provided by employing an immiscible polymer blend containing conductive filler located primarily in one phase, the immiscible polymer blend being comprised of a low molecular weight polymer and a second polymer, preferably an adhesive EVA. Preferably an adhesive extender which is miscible with the low molecular weight polymer, and fine particles of a material admixed with the filling compound and/or provided as a thin layer of fine particles of a material applied over the filling compound which swells when it absorbs water are also included in the filling compound.
Abstract: Metal matrix composite wires that include a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The wire exhibits zero breaks over a length of at least 300 meters when tested according to a specified test.
Type:
Grant
Filed:
July 14, 2000
Date of Patent:
December 11, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Herve E. Deve, Michael W. Carpenter, Colin McCullough, Paul S. Werner