Abstract: A nickel powder having a composite oxide layer comprising lanthanum and nickel and, optionally an oxide of chromium, on at least a part of the surface thereof. The nickel powder is produced by a process comprising the steps of: bringing a solution comprising at least one heat-decomposable nickel compound and at least one heat-decomposable lanthanum compound and, optionally, at least one heat-decomposable chromium compound, to fine droplets; and heating the droplets at a temperature above the decomposition temperatures of these compounds to prepare a nickel powder and, at the same time, to deposit a composite oxide layer comprising lanthanum and nickel and, when present, chromium oxide, in the vicinity of the surface of the nickel powder.
Abstract: A new and useful a plastic article, particularly plastic siding, with an accent color pattern incorporated therein, a specially formed accent color pellet which is useful in manufacturing such an article, and a process for producing the article using the pellets are provided. The process contemplates extruding a plastic product from a base material formed of powder-sized particles and specially formed accent color pellets. The accent color pellets are alloyed masses of resins and pigment which are larger than the powder particles of the base material, and have a higher vicat softening point temperature than the base material. The alloyed pellets are designed to melt controllably and to mix controllably with the base material.
Type:
Grant
Filed:
November 6, 1997
Date of Patent:
February 9, 1999
Assignee:
M. A. HannaColor, a division of M. A. Hanna Company
Inventors:
John J. Dorchester, Bobby D. Smith, Ronald M. Harris
Abstract: The invention relates to interference pigments comprising molecules fixed in a cholesteric configuration, and to the use thereof. The pigments of the invention have a plateletlike structure and a thick ness of from 1 .mu.m to 20 .mu.m. They contain oriented, crosslinked substances with a liquid-crystalline structure having a chiral phase.
Abstract: Coating compositions are disclosed having very fine mica with particle sizes ranging from 0.1 to 15 microns which produce added color to the coating without producing a metallic effect or color travel.
Abstract: Sheet materials according to the present invention comprise a sheet material substrate, such as for example a film or paper sheet, with a polymer release coating overlying and adhered to a surface of the sheet material substrate. Single and multilayer release coatings can be formed on the substrate by vapor deposition of silicone acrylates and/or fluorinated acrylates. These coatings can be applied in thickness of 0.05 micron to 1.0 micron to achieve a range of release properties. These coatings can be applied in a very thin single layer on relatively smooth substrates or in a multilayer form on rough substrates such as paper. The new coating process described here has lower process and materials costs, improved adhesion, low slip, and excellent release characteristics.
Type:
Grant
Filed:
August 11, 1995
Date of Patent:
September 22, 1998
Inventors:
David G. Shaw, Eric Dawson, Daniel Cline, Marc Langlois
Abstract: The front surface of a wooden overlay sheet, having a wooden material on the front surface thereof, is subjected to a color treatment with a colorant comprising a primer resin; the wooden overlay sheet, which was subjected to color treatment, is positioned in a metal mold for molding, and a transparent resin layer is molded on the front surface thereof by means of injection-molding. Furthermore, a synthetic resin core material is molded on the rear surface of the wooden overlay sheet. A composite molded article is thereby produced, wherein a synthetic resin core material is molded on the rear surface of the wooden overlay material, and a transparent resin layer is molded on the front surface of the wooden overlay sheet. Thus, the present invention enables the enhancement of the outer appearance of the product and the enhancement of the adhesion of the wooden overlay sheet and the transparent resin layer.
Abstract: A flexible and efficient bulk micromachining method for fabricating a novel microstructure that is bounded by substantially planar surfaces meeting only at substantially right angle corner features. The novel microstructure of the present invention is useful as a spacer in assembly processes where high accuracy is required, such as precise positioning of optical fibers or conductors. In the preferred embodiment, the microstructure of the present invention includes a shelf feature disposed along a height dimension of the microstructure, which is required for some applications. The bulk micromachining method of the present invention includes providing a first substrate having a top planar surface and an opposing planar surface. The opposing surface of the substrate is anisotropically etched to provide a first thinned region. The top surface of the first substrate is anisotropically etched so that a first recessed feature having a vertical side is made integral with the first thinned region.
Abstract: A recycled wood product is formed from wood products originally made from first cut wood. The recycled wood product is formed by removing external fittings, if any, projecting from the original, wood product and thereafter chipping the original wood product into platelets which are thereafter assembled in layers, glued together and then pressed together. Any excess formaldehyde in the original wood product is removed by the addition of urea. Machinery to practice the process includes a chipping tool which chips the original product into platelets as the original wood product is advanced against the chipping tool on a movable support structure.
Abstract: This invention provides a composite article having discrete microstructures partially encapsulated within a layer. A method of making the same is also provided. The article of the present invention is useful for visible radiation absorbing devices, such as, for example, selective solar absorbers, flat plate solar collectors, solar absorption panels, and solar cells.
Type:
Grant
Filed:
April 12, 1996
Date of Patent:
July 8, 1997
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: The present invention relates to films or sheets of linear polyester having incorporated therein a combination of glass spheres and calcined clay having certain particle sizes and present in specific amounts based upon the weight of the polyester film. The addition of these fillers improves several properties of the film, including the handleability while maintaining acceptable optical clarity and transparency and to the method of making such films or sheets.
Type:
Grant
Filed:
June 5, 1995
Date of Patent:
May 27, 1997
Assignees:
Imperial Chemical Industries PLC, ICI Americas Inc.
Abstract: For titanium and titanium alloys in tribological applications under bound lubrication conditions, there are employed epoxy coatings adhered to the surface of the titanium or titanium alloy by a titanium oxide primer layer. The anti-wear properties of the epoxy coating can be improved by incorporation of an anti-wear filler such as diamond powder. These coatings improve the friction coefficient and anti-wear properties of the titanium and titanium alloys.
Type:
Grant
Filed:
May 31, 1995
Date of Patent:
May 27, 1997
Assignee:
The United States of America as represented by the Secretary of Commerce
Abstract: As an article of manufacture, a durable composite, which comprises in combination a glass bead, and a multifunctional polymeric substance which has a functionality capable of interacting with a species of interest, and a further functionality interacted with a functionality of said glass bead to adhere the substance to the glass, such that there is a decreased tendency of the agent toward removal from the composite by an aqueous medium; and a method of making same.
Abstract: A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having coated thereon an acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon a conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, said adhesive being adhered to said substrate by means of a primer, said primer comprising at least one phenolic resin and at least one rubbery compound, said adhesive tape being capable of surviving immersion in molten solder for at least about 5 seconds.
Type:
Grant
Filed:
June 29, 1995
Date of Patent:
May 20, 1997
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A heat-insulating panel serving also as a concrete frame excellent in bending strength characteristics and dimensional stability and a method of manufacturing the panel. Cut or shredded pieces having lengths of 20 mm or less of magnetic tapes are heated to 100.degree. to 200.degree. C., thus forming contracted pieces of magnetic tapes in curled shapes. The curled contracted pieces of magnetic tapes in an amount of 100 parts by weight are mixed with 10 to 50 parts by weight of a thermosetting resin as a binder, and are compression-molded under a pressure ranging from 2 to 20 kgf/cm.sup.2 at a temperature from 100.degree. to 200.degree. C.
Abstract: A collection of agglomerated anti-friction grains for plasma deposition, the grains each consisting essentially of (a) H.sub.2 O atomized stainless steel particles, (b) solid lubricant particles consisting of at least one of boron nitride or a eutectic of calcium fluoride and lithium fluoride, and (c) a binder holding said steel and solid lubricant particles together for plasma spraying, said binder being present in an amount of 0.5-4.0% by weight and is vaporizable at the temperature of plasma spraying and does not interfere with the deposited process.
Type:
Grant
Filed:
December 9, 1994
Date of Patent:
May 13, 1997
Assignee:
Ford Motor Company
Inventors:
V. Durga N. Rao, Robert A. Rose, David A. Yeager, Carlo A. Fucinari
Abstract: A mass of ferromagnetic particles having a lubricous shell comprising a plurality of organic lubricant particles embedded in a film of a thermoplastic binder.
Abstract: Co-coated acicular magnetite particles each comprising:acicular magnetite particle as the core particle;a lower coating layer of Co-containing spinel ferrite having a spinel structure, which is formed on the surface of said acicular magnetite particle; andan upper coating layer of Co- and Mg-containing spinel ferrite having a spinel structure, which is formed on said lower coating layer.
Abstract: The present invention relates to an X-ray intensifying screen comprising a support, a fluorescent layer coated thereon which comprises fluorescent phosphor particles dispersed in a binder, and a protective top-coat layer covering said fluorescent layer, characterized in that at least one of said fluorescent and top-coat layers comprises at least one salt selected from the group consisting of fluoroalkylsulfonyl methides, fluoroalkylsulfonyl imides, and fluoroalkylsulfonyl amides.
Type:
Grant
Filed:
June 16, 1995
Date of Patent:
May 6, 1997
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Paolo Benso, Dario Ballerini, William M. Lamanna, George G. I. Moore, William A. Huffman
Abstract: A toner recording medium including a substrate, such as paper, containing a coating composition of particulate silica and a polyvinyl alcohol in a coating weight of less than 2.0 g/m.sup.2 per side of the substrate. The composition is preferably about 50 to less than 90 parts by dry weight of particulate silica and about 10 to 50 parts by dry weight binder. A process is also disclosed for coating a substrate, such as paper, to produce a toner recording medium.
Type:
Grant
Filed:
June 2, 1995
Date of Patent:
April 22, 1997
Assignee:
Moore Business Forms, Inc.
Inventors:
Norman Macaulay, Nancy G. Mitchell, Mary R. Dean
Abstract: This invention relates to metal and ceramic matrix composite brake rotors comprising an interconnected matrix embedding at least one filler material. In the case of metal matrix composite materials, the at least one filler material comprises at least about 26% by volume of the brake rotor for most applications, and at least about 20% by volume for applications involving passenger cars and trucks. In a preferred embodiment of the present invention, the metal matrix composite brake rotor comprises an interconnected metal matrix containing at least about 28% by volume of a particulate filler material and more preferably at least about 30% by volume. Moreover, the composite rotors of the present invention exhibit a maximum operating temperature of at least about 900.degree. F. and preferably at least about 950.degree. F. and even more preferably at least about 975.degree. F. and higher.