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WO/2000/035633A1 |
Abrasive tools, such as coated abrasives, made using radiation curable resin binders can be given a greater depth of cure of the binder if they include bis(2,4,6-trimethylbenzoyl) phenylphosphine oxide photoinitiator.
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WO/2000/032353A2 |
A machine for abrading or polishing a workpiece (5) comprises a holding surface holding the workpiece, a head member (7) arranged along a rotation axis to rotate about the rotation axis, a working member (8) having a surface for abrading...
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WO/2000/024550A1 |
An improved belt for mechanical polishing of semiconductor wafers, which belt maintains a substantially flat surface in the span between its mounting surfaces. The belt has at least one polymer layer including a polishing layer, and at l...
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WO/2000/019419A1 |
Tape for polishing the substrate surface of a magnetic recording medium, wherein a thin-fineness filament obtained by dissolving a dissolving component in a dissolution-decomposing composite yarn consisting of a nylon component and the d...
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WO/2000/015905A2 |
A curl-resistant, antislip abrasive backing which includes a polymer-reinforced paper having a first surface and a second surface; a synthetic polymeric layer bonded to the first surface; and an amorphous, rubbery polymer film layer bond...
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WO/2000/015390A1 |
Seamless backings (10) and seamless coated abrasive articles are provided. The seamless backings (10) and seamless coated abrasive articles have a backing binder (20) formed from a backing binder precursor comprising an aromatic polysioc...
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WO/2000/015389A2 |
A curl-resistant backside layer for an abrasive paper which includes a surfactant-free, film-forming, carboxy group-containing latex polymer. The latex polymer may be ammonia- or amine-dispersed and the curl-resistant backside layer addi...
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WO/2000/013854A1 |
The present invention relates to a support (4-7) for temporary fixation of a self-sticking abrasive and/or polishing sheet (2) comprising an adhesive layer (3), said support (4-7) comprising a surface for receiving the sheet (2), where t...
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WO/2000/013853A1 |
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/2000/012642A1 |
A polishing cloth includes: a polishing cloth substrate; a first pressure-sensitive adhesive layer formed on a back face of the polishing cloth substrate; a support formed on a back face of the first pressure-sensitive adhesive layer; a ...
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WO/2000/007776A1 |
An abrasive article including: (i) an embossed isolation layer (20) defining inversely contoured first and second surfaces with a plurality of peaks on the first surface producing a plurality of pockets on the second surface; (ii) grindi...
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WO/2000/007775A1 |
An abrasive article including (i) a first backing (20), (ii) a plurality of protrusions (30) attached to the first surface (21) of the first backing (20) and including a grinding aid, wherein the first surface (21) of the first backing (...
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WO/2000/007774A1 |
An abrasive article (10) including (i) a backing (90), (ii) a plurality of grinding aid-containing protrusions (30) integrally molded on the first surface (91) of the backing (90), wherein the first surface (91) of the backing (90) is co...
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WO/2000/008255A1 |
Apparatus and method for grinding levelling of paper, cardboard or a similar continuous web manufactured from vegetative based fibrous raw-material, said apparatus comprising a plurality of grinding means such as rolls or belts preferabl...
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WO/2000/006341A1 |
A dispenser package comprises a box-shaped dispenser (12) containing a longitudinally-extending web (6) of lofty, non-woven, abrasive material comprising fibres having a tenacity of at least 7.0 g/dtex., which is partially cut, at interv...
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WO/2000/005034A1 |
A spliced abrasive web (10) spliced together with splicing medium (16) including a predetermined pattern (18). A preferred embodiment of the invention provides a non-woven abrasive web, in the form of a belt, spliced together with splici...
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WO/2000/003840A1 |
A resilient abrasive article includes a resilient elongatable substrate, abrasive particles adhesively bonded to the substrate with a flexible make coat, and a hard size coat applied over the abrasive particles and flexible make coat. Th...
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WO/2000/002707A1 |
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 capilla...
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WO/1999/065352A1 |
A loop material suitable for use with a hook-and-loop fastening system, wherein the loop material includes a first fibrous nonwoven web having a first surface and a second suface and includes carded sheath-core bicomponent staple fibers ...
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WO/1999/062673A1 |
A polishing pad or belt or other device with increased resistance to moisture absorption for improved planarizing effectiveness and consistency. The relatively moisture resistant polishing pad contains additives to improve wetting of the...
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WO/1999/059778A1 |
An abrasive article is formed having a barrier coating coextensive with and interposed between a backing and an abrasive coating. The hardened barrier coating essentially eliminates penetration of the abrasive coating into the backing, e...
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WO/1999/058299A1 |
A bonded-abrasive tool includes a matrix of an organic bond, abrasive grains dispersed in the organic bond and a grinding aid in the form of either an inorganic nonhalogenated filler or a hydrated filler. The inorganic nonhalogenated fil...
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WO/1999/056914A1 |
The present invention involves the use of powder coating methods to form coated abrasives. In one embodiment, the powder is in the form of a multiplicity of binder precursor particles comprising a radiation curable component. In other em...
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WO/1999/056913A1 |
A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable, preferably melt-processable resing containing an ep...
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WO/1999/054424A1 |
Alumina-based abrasive material having at least an internal layer is provided. Preferably, the abrasive material results from co-extrusion of at least two different sols. In some preferred processing, steps to provide multiple internal l...
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WO/1999/052676A1 |
An abrasive article is provided that includes a tie coat which improves adhesion between an abrasive layer and a backing in the abrasive article. The tie coat is preferably formed from a tie coat precursor comprising a sulfopoly(ester-ur...
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WO/1999/046077A2 |
A wire saw has a small diameter metal wire and a layer of abrasive grains firmly affixed to the wire surface by a brazed or soldered active metal bond. Preferably, the grains are present in a single layer. The grains are disposed on the ...
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WO/1999/043491A1 |
The present invention provides an abrasive material (50) comprising a base surface having a plurality of pyramidal shapes protruding therefrom the base surface and the protrusions (52) being formed of the same material, each protrusion (...
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WO/1999/043466A1 |
The present invention relates to an abrasive article. The abrasive article of the present invention contains an abrasive layer, a polyurethane structure bonded to the abrasive layer and a substrate bonded to the polyurethane structure. T...
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WO/1999/041039A1 |
An end effector (11a, 11b) is provided for conditioning pads used to polish semiconductor wafers. The end effector (11a, 11b) has a substrate (13) with a matrix (15) (preferably a polymer) disposed thereon. Abrasive particles such as dia...
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WO/1999/024223A1 |
Abrasive foam articles and a method of manufacture of such articles are described. The articles of the invention comprise a flexible and resilient foam substrate having first and second major substrate surfaces, at least one of the surfa...
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WO/1999/022912A1 |
An abrasive article (10) is provided which includes a peripheral surface formed comprising a grinding aid. The grinding aid is formed from a mixture including an acid and at least one of an inorganic metal phosphate salt or an inorganic ...
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WO/1999/022913A1 |
The present invention relates to an abrasive article containing an abrasive coating having more than one abrasive composite layer, wherein each abrasive composite layer has undergone at least one curing process. The abrasive article of t...
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WO/1999/021683A1 |
The invention relates to plate tool formed as a multi-layer device having a quick-engaging element, provided with a work surface, comprising a substrate. The plate tool according to the present invention is also suitable for fastening to...
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WO/1999/019116A1 |
An abrasive article comprising an abrasive fabric comprising a fabric having discrete areas of electro-deposited metal extending on or therethrough and having abrasive material embedded in the metal, a layer of adhesive, and a backing su...
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WO/1999/016582A1 |
The film with an embedded grained layer comprising at least two layers with different melting points, at least one of them being thermoplastic and grained material is embedded in the top thermoplastic layer having a lower melting point. ...
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WO/1999/015315A1 |
An abrasive article is provided that includes at least one binder system formed from a polymeric additive and a thermosetting resin. The polymeric additive includes a polymeric backbone having substituents attached thereto, wherein the s...
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WO/1999/014016A1 |
Abrasive slurries, abrasive articles made from the abrasive slurries, and method for the production of the abrasive articles are disclosed. The abrasive slurries and abrasive articles made therefrom comprise at least two grades of abrasi...
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WO/1999/012707A1 |
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 in the form of a structure...
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WO/1999/011434A1 |
A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the h...
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WO/1999/010569A1 |
Objective: to provide a combination electrolytic polishing and polishing and grinding machine and processing tape which will enable the formation on the surface of hard disks uniform, accurate texturing without abnormal protrusions. Comp...
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WO/1999/007517A1 |
The method of the invention simplifies the production process of a coated abrasive article and shortens the production time by omitting the step of sealing a porous substrate and by shortening the curing time of a bonding agent. A proces...
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WO/1999/006182A1 |
An integrated, endless belt with a seamless polishing surface for a belt-type polishing machine comprises a support fabric and a polymer layer that acts as the polishing surface. The polymer layer is typically porous and formed with drai...
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WO/1999/003642A1 |
The present invention provides a method of making sheet articles, for example, abrasive articles, retroreflective articles (such as traffic signs), pavement marking articles, or traction or non-skid articles. The method includes passing ...
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WO/1999/002309A1 |
A flat substrate polishing and polishing pad conditioning head for a chemical-mechanical-planarization apparatus is provided which has been shown to double the useable life of a polishing pad used to planarize and/or polish both oxide an...
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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/1998/053956A1 |
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/1998/053955A2 |
A ring-shaped abrasive disc (1) has a series of tabs (3) around the disc (1) which are used to secure it to a backing plate (10), which includes slots (11) arranged around its periphery for receiving the tabs (2). The backing plate (10) ...
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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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