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Patent Searching and Data


Matches 601 - 650 out of 5,055

Document Document Title
WO/2002/078909A1
An electrostatic abrasive grain deposition process can be adapted to produce a patterned abrasive surface by controlling the local intensity of the field by which the grain (5) is projected on to a substrate (3).  
WO/2002/078908A1
The present invention is directed to a method of abrading a surface of a workpiece. The method of the invention comprises bringing a surface of a workpiece and an abrasive article into frictional contact in the presence of an aqueous flu...  
WO/2002/076678A1
The present invention provides a flexible abrasive product comprised of an open cell foam backing (12), a foraminous barrier coating (13) and a shaped foraminous abrasive coating (33). The flexible abrasive article (31) of the invention ...  
WO/2002/074492A2
The present invention provides discrete particles (306) and methods of preparing the discrete particles (306), and abrasive articles (300) having projections attached to a major surface thereof and methods of making such articles (300). ...  
WO/2002/074839A2
The present invention provides abrasive articles and methods of making abrasive articles. The abrasive articles have a polymeric material that includes (1) a reaction product of components that include (a) an epoxy-functional material, (...  
WO2002043536A3
A bi-functional nonwoven fabric wipe (10) embodying the principles of the present invention comprises a hydroentangled, composite fibrous matrix having first and second, opposite expansive surfaces. The first expansive surface of the wip...  
WO/2002/068154A1
The invention provides abrasive articles with optimally oriented abrasive particles (60) and a method of making the same. The method involves contacting a substrate (61) with the contact and mating surfaces of tools to provide an embosse...  
WO/2002/064317A1
The invention concerns a self-adhering support (A) for an applied abrasive product, comprising a support for abrasive (1) secured to a self-adhesive sheet (1a). The invention is characterised in that said self-adhering support (A) has a ...  
WO/2002/062532A1
A composition useful, for example, as a coating on the backside of coated abrasive articles comprising binder precursor selected from the group consisting of acrylic, acrylate, phenolic, epoxy, melamine-formaldehyde and combinations ther...  
WO/2002/062531A1
An abrasive is oversized with a layer consisting essentially of an inorganic anti-loading agent selected from the group consisting of metal silicates, silicas, metal carbonates, and metal sulfates. The metal silicates can be selected fro...  
WO/2002/060648A1
A polishing film (10) which comprises a plastic film (11) and, formed on the surface thereof, a polishing layer (14) having a thickness of 50 $g(m)m or more and comprising 50 to 85 wt % of silica particles having been treated with heat a...  
WO/2002/055261A1
A polisher (1) for polishing a curved surface such as the convex surface of a spectacle lens, comprising a polishing pad (3) having water passing grooves (5) of 0.1 to 5 mm wide stuck on a dome-shaped elastic base material (2), the polis...  
WO2002032625A3
The invention provides abrasive articles (30) comprising: a backing (32) having a first major surface and a second major surface; and an abrasive coating (37) consisting essentially of: a hardened binder coating having a first surface ad...  
WO/2002/055266A1
A wiping film having a flexible film backing, and a wiping layer formed on one surface of the backing, wherein the wiping layer is composed of a binder and plastic particles dispersed therein. The wiping film is useful for removing forei...  
WO/2002/053324A1
A method of chemically modifying a wafer suited for fabrication of semiconductor devices includes a) contacting a surface of wafer with an article (10) that includes a plurality of unit cells repeating across the surface of the article, ...  
WO2002038338A3
The present application discloses an agglomerate. The agglomerate comprises a crystalline matrix. The agglomerate may additionally comprise abrasive particles. The agglomerate has a normalized bulk density of less than about 0.38. The pr...  
WO2002020218A3
The present invention provides an abrasive article formed of a binder, abrasive particles associated with the binder, and a lubricating particulate additive comprising polytetrafluoroethylene associated with the binder. The abrasive arti...  
WO/2002/051587A1
As one of many embodiments of the present invention, a seamless polishing apparatus for utilization in chemical mechanical polishing is provided. The seamless polishing apparatus includes a polishing pad (156) where the polishing pad (15...  
WO2001087543A3
A colored 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 surface and includes side by side bicomponent spunbond fi...  
WO/2002/045906A1
Abrasive cloth comprising composite cloth having a fiber base material and a polymer elastic body filled in the material, characterized in that the fiber base material (1) is composed of fiber bundles each formed by bundling 20-3000 very...  
WO/2002/045908A1
Abrasive grinding wheels having an irregular (i.e., gapped) perimeter shape and/or holes extending therethrough permit one to view the surface of a workpiece being ground in conventional surface finishing, snagging and/or weld blending o...  
WO/2002/043536A2
A bi-functional nonwoven fabric wipe (10) embodying the principles of the present invention comprises a hydroentangled, composite fibrous matrix having first and second, opposite expansive surfaces. The first expansive surface of the wip...  
WO/2002/043925A1
A process for planarizing, polishing, or providing other modification of a wafer surface (22) or other workpiece. The process includes using an abrasive article (140) having a textured abrasive coating affixed (146) to a backing. The abr...  
WO2001026862A8
A conditioner for polishing pad and a method for manufacturing the same are disclosed. The conditioner comprises a substrate having formed with a plurality of geometrical protrusions of a uniformed height on at least one of its sides, an...  
WO/2002/043921A1
A polishing pad capable of stably performing, with a high polishing speed, the flattening processing of the materials requiring a high degree of surface flatness such as silicon wafers for semiconductor devices, magnetic disks, and optic...  
WO/2002/042034A1
The invention provides an abrasive product having a sheet-like backing (11) including a plurality of concavoconvex portions, the backing (1) also having a first major surface including convex portions and an opposite second major surface...  
WO2001043918A9
A method for making an abrasive material comprising a plurality of hard particles (75) providing the abrasive quality distributed in a retaining matrix for holding the particles in place, the method comprising the steps of placing a mask...  
WO/2002/038338A2
The present application discloses an agglomerate. The agglomerate comprises a crystalline matrix. The agglomerate may additionally comprise abrasive particles. The agglomerate has a normalized bulk density of less than about 0.38. The pr...  
WO/2002/032832A1
A method for making abrasive agglomerate particles from a composition (12) comprising at least a radiation curable binder and solid particulates. The method comprises the steps of forcing the composition through a perforated substrate (5...  
WO/2002/033019A1
Methods for making ceramic aggregate particles (80) comprising forming a plurality of ceramic aggregate precursor particles (20) from a composition (12) by forcing the composition through at least one orifice (21) in a substrate (22), at...  
WO/2002/033020A1
A method for making agglomerate particles from a composition comprising at least a radiation curable binder and solid particulates. The method comprises the steps of forcing the composition through a perforated substrate to form agglomer...  
WO/2002/032626A1
The invention provides coated abrasive products (10) having as a backing material a barrier-coated tear-resistant laminate (11) of fabric (12) and paper (15) overcoated on the barrier coating (17) with an abrasive coating. The coated abr...  
WO/2002/032625A2
The invention provides abrasive articles (30) comprising: a backing (32) having a first major surface and a second major surface; and an abrasive coating (37) consisting essentially of: a hardened binder coating having a first surface ad...  
WO/2002/031874A1
An abrasive cloth having an abrasive layer containing a polymer material which is hydrolyzed by an aqueous medium. The abrasive cloth is capable of exhibiting stable polishing performance for a relatively long period of time with no dres...  
WO2002002274A3
The invention is directed to a base-pad (2) for placement under a polishing pad (1) for use with a polishing fluid during a polishing operation, the base-pad (2) having a layer (7) with vertical elongated pores that absorb polishing flui...  
WO2001043918A3
A method for making an abrasive material comprising a plurality of hard particles (75) providing the abrasive quality distributed in a retaining matrix for holding the particles in place, the method comprising the steps of placing a mask...  
WO/2002/024414A1
The invention relates to an abrasive body (1) for an electric grinding tool, especially a delta, eccentric or vibrating grinder, comprising a support plate (2) on which an abrasive grit (3) that can be connected to a base plate of the gr...  
WO/2002/022308A1
A polishing pad and method, wherein surface dressing is made unnecessary, no deformation occurs with the lapse of working time, there is no clogging otherwise caused by abrasive grains or abraded chips, and the surface of a polish-object...  
WO/2002/020218A2
The present invention provides an abrasive article formed of a binder, abrasive particles associated with the binder, and a lubricating particulate additive comprising polytetrafluoroethylene associated with the binder. The abrasive arti...  
WO2002002278A8
A surface treating article (10) including a surface treating member (40) and a fastener (12) including a fiducial (18). The present invention also provides a preferred method of making a surface treating article that includes to a method...  
WO/2002/006009A1
The invention concerns a cleaning tool, whereof the structure comprises a substrate to at least at one surface of which fibres have been secured by flocking, said fibres covering, at least partly, said surface and having mainly at their ...  
WO/2002/002274A2
The invention is directed to a base-pad (2) for placement under a polishing pad (1) for use with a polishing fluid during a polishing operation, the base-pad (2) having a layer (7) with vertical elongated pores that absorb polishing flui...  
WO/2002/002278A1
A surface treating article (10) including a surface treating member (40) and a fastener (12) including a fiducial (18). The present invention also provides a preferred method of making a surface treating article that includes to a method...  
WO/2001/098027A1
The invention relates to grinding/polishing sheet, which comprises 2 or more annular grinding/polishing zones (1-5) separated by intermediate annular distancing zones (6). One or more of the grinding polishing zones (1-5) comprises one o...  
WO/2001/098032A1
A spiral wound abrasive belt (215) is formed from an abrasive media (210) including a plurality of webs. The webs of the abrasive media may include coated abrasives joined by splicing media or other suitable joining material. Alternative...  
WO/2001/096434A1
A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound with a second ingredient comprising a compound containing an active hydrogen group, characterized by comprising ad...  
WO/2001/094074A1
The present invention is an apparatus and method for manufacturing a window (700) into a polishing pad (100) used during a planarization process of a front surface of a wafer. A hole is created in the polishing pad at a location where a ...  
WO/2001/091975A1
An abrasive material which is especially excellent in the dispersion of abrasive grains even when the grains are contained in a large amount, and which has stable polishing properties and is effective in diminishing scratches. The abrasi...  
WO/2001/092620A1
A method of forming a nonwoven fabric suitable for metal-finishing buffing operations includes providing a precursor web comprising polyester, staple length fibers, with hydroentanglement of the web effected to impart desired physical ch...  
WO/2001/087543A2
A colored 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 surface and includes side by side bicomponent spunbond fi...  

Matches 601 - 650 out of 5,055