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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/1998/047705A1 |
The invention relates to an apparatus (1) for distribution of hard particles to the surface of a paper web (20) impregnated with resin. The apparatus includes a feed hopper (3), a rotating doctor-roll (2) placed under the feed hopper (3)...
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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/1998/045092A1 |
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/1998/042479A1 |
The invention relates to a part for polishing, comprised of a substrate of a rigid material and an underlying flexible support. The substrate consists of contacts (1) separated by intervals (3, 4), said intervals (3, 4) defining at least...
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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/1998/038369A1 |
A loop material suitable for use in a hook-and-loop fastening system, which loop material includes a bonded carded web having a first side and a second side. The bonded carded web has a basis weight of from about 15 to about 140 grams pe...
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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/1998/035786A1 |
An integrated pad and belt for polishing a surface comprising a belt integrated with a polishing pad that forms a seamless polishing surface.
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WO/1998/035785A1 |
An integrated pad and belt for polishing a surface comprising a belt integrated with a polishing pad that forms a seamless polishing surface.
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WO/1998/036442A2 |
An integrated pad and belt for polishing a surface comprising a belt integrated with a polishing pad that forms a seamless polishing surface.
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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/1998/030361A1 |
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/1998/030359A1 |
An attachment means for attaching a sheet-formed abrasive and/or polishing means to a magnetized support, said attachment means comprising a ferromagnetic base layer and an external adhesive layer to which the abrasive and/or polishing m...
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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/1998/023411A1 |
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/1998/019830A1 |
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/1998/019829A1 |
An abrasive article is formed from a lofty nonwoven abrasive pad and one or more abrasive sheets. Each sheet has an abrasive layer on its front side and a plurality of engagement stems on its back side. Enough of the engagement stems eng...
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WO/1998/014304A1 |
A polishing pad (42) for use in chemical-mechanical planarization (CMP) of semiconductor wafers includes a multiplicity of elongated microcolumns (48) embedded in a matrix material body (44). The elongated microcolumns (48) are oriented ...
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WO/1998/012958A1 |
A cleaner and polish article comprises a substrate capable of absorbing and retaining a fluid and having two opposed surfaces wherein at least one surface is abrasive, and a nonabrasive aqueous cleaner and polish formulation absorbed in ...
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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/1998/010896A1 |
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/1998/006541A1 |
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/1998/004380A1 |
An abrasive plate having an abrasive surface for performing abrading applications is provided. The plate includes a base member having a substantially smooth surface with a plurality of holes formed therethrough. A plurality of pairs of ...
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WO/1998/003307A1 |
Waterproof coated abrasive paper made using a maker and/or size coat comprising a radiation-curable binder that is hydrophobic when polymerized.
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WO/1998/003306A1 |
An abrasive article comprising a plurality of composites (15), where the composites comprise abrasive particles (17) and hollow spheres (18) dispersed in a binder (19). The structured abrasive article of this invention is fabricated at s...
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WO/1997/047434A1 |
A flexible abrasive member comprises a porous layer which carries deposits with embedded abrasive particles, said deposits being separated from each other. The deposits are arranged and shaped in such a way that they are mutually interlo...
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WO/1997/042007A1 |
An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component.
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WO/1997/042003A1 |
A method for making a nonwoven abrasive article. A preferred aspect of the method comprises the steps of: a) providing a nonwoven web having a first side and a second side, the web comprising a plurality of fibers; b) frothing a liquid m...
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WO/1997/042006A1 |
An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component in a peripheral coating of the abrasive article.
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WO/1997/042004A1 |
A method for manufacturing a foraminous abrasive article whereby abrasive particles are concentrated in an external surface region of a foraminous substrate. The method includes the steps of: providing a foamable, hardenable, liquid resi...
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WO/1997/042005A1 |
Abrasive articles and a method for the manufacture of such articles are described. The articles comprise a lofty nonwoven web of fibers, the fibers defining a first major web surface, a second major web surface and a middle web portion e...
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WO/1997/038824A1 |
A profiled, soft cushined roller (14) is provided with an outer profiled abrading surface (15) that conforms to and rides on a contoured substrate surface (21) during an abrading operation. A soft roller (14) usually in the form of a sof...
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WO/1997/038825A1 |
An abrasive belt is formed by releasably-attaching a length of abrasive material (10) to an endless backing belt (11). The ends (12A, 12B) of the length of abrasive material are preferably shaped so that they interlock.
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WO/1997/036713A1 |
A UV-polymerizable formulation comprising a polymerizable formulation and a filler and intended for use in the production of coated abrasives can be used to produce a very much thicker coating if a UV-transparent filler is used.
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WO/1997/035687A1 |
A fibrous substrate for making a coated abrasive article, containing urea or a mixture of urea and at least one hygroscopic material, particularly a mixture of urea and an inorganic salt, and especially of urea and sodium nitrate, is dis...
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WO/1997/033719A1 |
A method of preparing an abrasive article, and the article produced therefrom is provided. The method includes the steps of: providing a backing having a first major surface; coating the first major surface of the backing with a tie coat...
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WO/1997/032693A1 |
A coated abrasive sheet material comprising (a) a backing substrate having at least one major surface, (b) a plurality of abrasive grains, (c) a binder bonding said plurality of abrasive grains to said at least one major surface of the b...
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WO/1997/031754A1 |
A support shoe for supporting an abrasive tape (22) having an abrasive face and an opposed back face (30), wherein the support shoe comprises a pressure face (18) including a frictional engagement material for frictionally engaging the b...
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WO/1997/031079A1 |
Supersize formulations in which the binder medium is hydrophobic and radiation-polymerizable permits the use of larger quantities of supersize additives including additives that are water-soluble.
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WO/1997/029143A1 |
A low VOC curable water-based coating composition is provided. The composition includes a urethane/acrylic copolymer having a Tg of greater than about 50 �C, a polyoxyethylene aryl ether plasticizer, an alkaline-stable cross-linker, an...
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WO/1997/026410A1 |
A paper-based sheet comprising abrasive particles which, in use, impart high abrasion resistance thereto is disclosed. The sheet comprises abrasive particles coated with a non-abrasive material, particularly a polymer. The particles are ...
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WO/1997/025185A1 |
A method for making an abrasive article is described including the steps of providing an organic substrate; contacting the organic substrate with dry particulate solid material comprising a binder material, the binder material comprising...
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WO/1997/021536A1 |
Sheet material is formed by mixing polymer and particulate together in an extruder (2) and passing the mixture through a slot die (1); an electrode assembly (8) applies an electrostatic charge to the extruded sheet from the die (1) so th...
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WO/1997/021531A1 |
Sheet material which incorporates selected particulate is produced using a blown film die (1); polymer containing the selected particulate is supplied to the die inlet so that, when the polymer is extruded through the die and expanded to...
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