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WO/1999/000218A1 |
The invention relates to a flexible abrasive body with a flexible support. This support has a layer of flexible substrate with a first surface-covering metal coating on one side. A second metal coating, in which an abrasive material is a...
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WO/1998/058769A1 |
An abrasive article is provided that includes a bond system formed from a binder precursor and about 15 % by weight or less of a wax-containing modifier. An abrasive article that includes the bond system exhibits an increase of workpiece...
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WO/1998/058341A1 |
Character strings inter alia are inputted into a data processing unit (1) during the normal course of operation. Said strings are outputted in a sequential character sequence via an output interface (4). The primary output signal flow th...
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WO/1998/055265A1 |
A combined cutting and grinding tool comprising columnar diamonds (22) arranged so as to protrude from the surface of the tool and conductive bonding member (24) for integrally bonding the columnar diamonds (22) to the surface of the too...
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WO/1998/053956A1 |
A low-density abrasive article comprising a nonwoven web and a multiplicity of abrasive particles which are bonded to the nonwoven web by means of an adherent binder. Abrasive particles useful in the present invention have particle sizes...
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WO/1998/051448A1 |
A method of making a metal bonded, abrasive tool uses a perforated stencil to place abrasive parcels in a pattern on the cutting surface of the tool. The stencil is placed against the tool preform so that the perforations define cavities...
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WO/1998/050200A1 |
Polishing with an abrasive comprising abrasive particles composed mainly of silica particles, water as a solvent, and water-soluble cellulose and having an alkali metal impurity content of not more than 5C ppm wherein C represents the co...
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WO/1998/049361A1 |
The present invention relates to the use of a pre-alloyed powder as a binder in the manufacture of diamond tools by hot sintering. This powder is characterized in that it has an average particle size of less than 10 $g(m)m as measured wi...
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WO/1998/047663A1 |
An abrasive material for the needle point of a probe card which can effectively remove foreign matter adhering to the needle point of the probe, protect the needle point from damage and deformation, and prolong the life of the probe. The...
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WO/1998/047662A1 |
A polishing pad for polishing a semiconductor wafer which includes an open-celled, porous substrate having sintered particles of synthetic resin. The porous substrate is a uniform, continuous and tortuous interconnected network of capill...
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WO/1998/045112A1 |
A polishing pad is provided which is comprised of vertically oriented fibers. Such pads can be produced by electrostatically flocking fibers onto a substrate. Preferably the fibers are hollow.
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WO/1998/045087A1 |
This invention describes improved polishing pads useful in the manufacture of semiconductor devices or the like. The pads of the present invention have an advantageous hydrophilic polishing material and have an innovative surface topogra...
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WO/1998/045092A1 |
An abrasive tool (10) that contains abrasive particles (20) distributed in a predetermined pattern. Such a pattern is produced by fabricating two-dimensional slices (14, 16, 18) and assembling them. Abrasive particles (20) may be incorpo...
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WO/1998/045091A2 |
The present invention describes a diamond tool (10) with diamond bonded chemically by a braze (28) that contains either Cr, Mn, Si, or Al or mixtures or alloys thereof. The diamond tool (10) is made by infiltrating the braze (28) into a ...
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WO/1998/041361A1 |
Segment body (10; 16) for cutting, said segment body including diamond particles that are embedded in a binder, said diamond particles and their binder being subjected on one hand to pressing and on the other hand to sintering. Segment b...
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WO/1998/039142A1 |
An abrasive article is provided which comprises a backing; and at least one three-dimensional abrasive coating comprising diamond particles dispersed within a binder bonded to a surface of the backing, the binder comprising a cured binde...
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WO/1998/036872A1 |
The present invention is directed to a structured abrasive article that provides an enhanced cut rate and extended productive life when abrading mild steel workpieces. This abrasive article includes a backing having a surface that contai...
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WO/1998/035788A1 |
A vitrified diamond wheel with both excellent grinding ability and high impact resistance is disclosed. In an embodiment, the vitrified diamond wheel has a wheel-type iron shank and a vitrified layer provided on the top surface of the ir...
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WO/1998/035789A1 |
A method of manufacturing a flexible abrasive member, comprises the steps of: providing a porous substrate, impregnating the substrate with an electrically isolating material, treating a side of the impregnated substrate so as to provide...
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WO/1998/033624A1 |
A honing tool for machining workpieces, specially metal workpieces, by cutting, e.g. grinding, polishing, or honing, comprising at least one stock-removing tool portion with one or more cutting surfaces, wherein at least said cutting sur...
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WO/1998/033625A1 |
A tool for machining workpieces, specially metal workpieces, by cutting, e.g. grinding, polishing, milling, separating or honing, comprising at least one stock-removing tool portion and whose machining range consists of a composite mater...
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WO/1998/032566A1 |
In a coated abrasive product which comprises a backing with abrasive granules supported thereby and adhered thereto, a make coat of a resinous binder and a size coat of a resinous binder, at least one coat of the coated abrasive product ...
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WO/1998/030361A1 |
Coated abrasives suitable for very fine abrading applications can be obtained by depositing formulations comprising abrasive grits, fillers, grinding aid, additives and a binder resin and in patterns on a surface using a rotogravure tech...
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WO/1998/030360A1 |
An abrasive body for grinding optical glass, precious and natural stones (marble) or other materials such as wood, metal, plastics or the like, consists of a base body (3) made of a woven, knitted or embroidered fabric made of carbon fib...
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WO/1998/030357A1 |
An abrasive body (13) for a grinding disk (11), a grinding wheel or the like for grinding optical glass, precious and natural stones (marble) or the like has a base body (16) made of a sintered hard material upon which a diamond coating ...
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WO/1998/030356A1 |
An innovative method of manufacturing polishing pads using photo-curing polymers (14) and photolithography. The photolithography enables the creation of useful surface patterns not possible with conventional machining techniques and enab...
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WO/1998/030358A1 |
Coated abrasives suitable for very fine abrading applications can be obtained by depositing a layer of a formulation comprising abrasive grits, fillers, grinding aid, additives and a binder resin on a substrate, treating the formulation ...
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WO/1998/030362A1 |
System and method for locating and polishing a stain or protrusion on a surface of a vehicle. The stain or protrusion may be located by placing a plastic film between a portion of a human hand and the surface. The stain or protrusion may...
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WO/1998/029217A1 |
The present invention relates to a method and an article for rapidly polishing a glass workpiece surface using a structured abrasive article including cerium oxide particles dispersed in a binder. The abrasive article for rapid polishing...
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WO/1998/028108A1 |
A new method for manufacturing a porous polishing pad by implanting metallic or polymeric filings as pore former on a backing cloth/film inside an electric and/or magnetic field, coating the pad polymer onto the implanted filings and, th...
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WO/1998/024593A1 |
The present invention provides a metal bonded abrasive tool wherein the tool has improved life and mechanical properties. The invention further includes the bond composition which allows for improved life and mechanical properties, parti...
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WO/1998/023411A1 |
Abrasive articles and a method for the manufacture of the articles are described. The articles comprise a backing having a first major surface and a second major surface; a first resin layer comprising a first hardened resin, the first r...
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WO/1998/022260A1 |
An abrasive tool for cutting extremely abrasive-resistant materials includes a novel, abrasive segment with a generally crenelated, rectangular appearance. The segment has a single piece vein of a primary abrasive and first bond material...
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WO/1998/021009A1 |
An abrasive body, in particular a grinding wheel, is made of sintered ceramics and characterised in that the abrasive body is a composite body with at least one previously sintered element sintered together with a ceramic material, in pa...
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WO/1998/019830A1 |
An abrasive article is formed from a lofty nonwoven abrasive pad and one or more abrasive sheets. In one embodiment, each sheet has an abrasive layer on its front side and a plurality of engagement stems on its back side. Enough of the e...
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WO/1998/016664A1 |
A cutting insert which comprises a rake face and a flank face wherein there is a cutting edge at the juncture of the rake face and the flank face. The cutting insert has a coating and a substrate wherein the coating is adherently bonded ...
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WO/1998/016347A1 |
A semiconductor substrate polishing pad dresser adapted to be brought into sliding contact with a surface to be polished of a semiconductor substrate polishing pad and thereby subject the polishing pad to a conditioning operation, the dr...
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WO/1998/015387A1 |
A vitreous bonded abrasive grinding wheel comprises silicon carbide abrasive grain, hollow ceramic spheres and a low temperature, high strength bond. The wheel has improved corner or profile holding characteristics and improved mechanica...
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WO/1998/014307A1 |
A superabrasive tool such as a superabrasive grinding wheel (101; 102), a superabrasive dresser (103; 104; 105), or a superabrasive lap plate (106) has a steel base (20) and a superabrasive layer (10) formed on the base (20). The superab...
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WO/1998/012151A1 |
Method for making alpha alumina-based abrasive grain, wherein during an impregnation step of the method, alpha alumina-based ceramic precursor particles conchoidally fracture. The abrasive grain can be incorporated into abrasive products...
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WO/1998/012276A1 |
Method for making alpha alumina-based abrasive grain. The abrasive grain can be incorporated into abrasive products such as coated abrasives, bonded abrasives, and non-woven abrasives.
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WO/1998/012021A1 |
A coated abrasive article comprises a backing, a first binder (i.e., a make coat) on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable melt-processable resin containin...
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WO/1998/010895A1 |
Abrasive cutting and grinding wheels which are resin bonded and reinforced with glass fiber nets, and which obligatory contain one part of abrasive in the form of abrasive lumps obtained by cold treatment of remains of resin bonded grind...
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WO/1998/010897A1 |
A molded bonded abrasive grinding wheel adapted for relatively rough grinding operations is provided with a plurality of protuberances spaced in a predetermined pattern along the peripheral surface thereof and extending substantially ort...
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WO/1998/010896A1 |
This invention pertains to an abrasive article comprising preci sely shaped particles. The abrasive article may be a coated abrasive article, a bonded abrasive or a nonwoven abrasive article. The precisely shaped particles may further co...
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WO/1998/008655A1 |
Methods for orienting fibers and an apparatus for orienting fibers are provided for the fabrication of improved thin abrasive wheels utilizing uniform non-woven fiber reinforcement discs. The wheels are more resistant to hub push-out fai...
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WO/1998/008654A1 |
A bond for a metal single layer abrasive tool can be easily chemically and electrochemically stripped from the metal core of a recovered used tool to facilitate reuse of the core. Relative to conventionally bonded tools, the speed of str...
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WO/1998/006541A1 |
An abrasive construction for modifying a surface of a workpiece, such as a semiconductor wafer. The abrasive construction comprises: a three-dimensional, textured, fixed abrasive element; at least one resilient element generally coextens...
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WO/1998/005466A1 |
A bond material for a metal single layer abrasive tool, and especially for a tool with diamond abrasive, provides an excellent combination of mechanical properties including structural strength and impact resistance. The bond material is...
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WO/1998/004385A1 |
An efficient method for manufacturing bonded abrasive articles comprises the use of elongated abrasive grain having a length to cross-sectional width aspect ratio of at least 5:1 to yield abrasive articles which are highly permeable to t...
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