With Carbohydrate Or Reaction Product Thereof Patents (Class 51/302)
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Patent number: 9685343Abstract: [Problem] To provide a method for producing a polished object, which can remarkably reduce a haze level on a surface of the object to be polished while defects are significantly reduced.Type: GrantFiled: June 12, 2014Date of Patent: June 20, 2017Assignee: FUJIMI INCORPORATEDInventors: Makoto Tabata, Shinichiro Takami, Shogaku Ide
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Publication number: 20150107163Abstract: A superabrasive compact and a method of making the superabrasive compact are disclosed. A superabrasive compact may comprise a plurality of polycrystalline superabrasive particles made of surface functionalized superabrasive particle The surface functionalized superabrasive particles may have halogens or organic moiety instead of hydrogen.Type: ApplicationFiled: October 23, 2013Publication date: April 23, 2015Applicant: Diamond Innovations, Inc.Inventor: Valeriy V. Konovalov
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Publication number: 20150027064Abstract: An aqueous polymer binder composition adapted for the manufacture of abrasive articles, such as coated abrasive articles, comprising at least one saccharide, at least one polycarboxylic organic acid, and at least one crosslinking catalyst. The aqueous composition is formaldehyde-free and can further comprise rheology modifiers, fillers, and hydrophobizing agents.Type: ApplicationFiled: December 13, 2012Publication date: January 29, 2015Applicant: SAINT-GOBAIN ABRASIFSInventors: Clément Houga, Boris Jaffrennou, Alix Arnaud
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Publication number: 20150010949Abstract: The present invention relates to an aqueous carbohydrate based binder composition, comprising a carbohydrate component and an amine component, wherein the carbohydrate component comprises one or more pentose sugars, as well as to a method of its production.Type: ApplicationFiled: September 2, 2012Publication date: January 8, 2015Applicant: Knauf InsulationInventors: Roger Jackson, Carl Hampson, James Robinson, Benedicte Pacorel
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Patent number: 8888878Abstract: A coated abrasive product includes a particulate material containing green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles, a nanoparticle binder, a dual function material, and a cross-linking agent. These green unfired abrasive aggregates can also be used in free abrasive products and bonded abrasive products.Type: GrantFiled: December 30, 2011Date of Patent: November 18, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Jianna Wang, James J. Manning, Paul S. Goldsmith, Anthony C. Gaeta
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Publication number: 20140259960Abstract: A nonwoven, fibrous, article including a plurality of entangled fibers is provided. The fibers can have at least one of an anti-microbial agent or a plurality of abrasive particles. A binder material may bond the fibers to each other at points of crossing and contact between the fibers. The fibers may be made from post-consumer materials, post-industrial materials, heavy denier fibers, biodegradable materials, or heat resistant.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Inventor: Martin J. Rotter
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Patent number: 8784520Abstract: Methods of treating a plurality of particles involve functionalizing a plurality of microscale diamond particles by covalently bonding one or more molecular groups selected from OH functional groups, —COOH functional groups, —R—COOH functional groups, wherein R includes alkyls, -Ph-COOH functional groups, wherein Ph includes phenolics, polymers, oligomers, monomers, glycols, sugars, ionic functional groups, metallic functional groups, and organo-metallic functional groups to outer surfaces of at least some particles of the plurality of microscale diamond particles. A stability of the functionalized plurality of microscale diamond particles in dispersion is increased as compared to a plurality of microscale diamond particles that has not been functionalized.Type: GrantFiled: June 30, 2011Date of Patent: July 22, 2014Assignee: Baker Hughes IncorporatedInventors: Soma Chakraborty, Gaurav Agrawal
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Patent number: 8652227Abstract: An abrasive cleaning agent is provided which can be used for a polishing process for polishing a surface of a workpiece to form a mirror surface, which suppresses generation of static electricity and adhesion of stains to the workpiece, which decreases a crushing ratio, and which has a low environmental burden when the abrasive cleaning agent is disposed of. The above abrasive cleaning agent includes an elastic material containing a soluble nitrogen substance as a primary component, which is obtained from tubers of devil's tongue and which contains mannan as a primary component, and a 10% to 30% of water; and 1 to 30 percent by weight, with respect to the elastic material, of abrasive grains of size 53 micron or less, which are supported on surfaces of the elastic material and/or are buried therein, so that the grain diameter on the whole is in the range of 88 to 1,190 ?m.Type: GrantFiled: June 26, 2013Date of Patent: February 18, 2014Assignee: Fuji Kihan Co. LtdInventor: Yoshio Miyasaka
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Patent number: 8529650Abstract: An abrasive cleaning agent is provided which can be used for a polishing process for polishing a surface of a workpiece to form a mirror surface, which suppresses generation of static electricity and adhesion of stains to the workpiece, which decreases a crushing ratio, and which has a low environmental burden when the abrasive cleaning agent is disposed of. The above abrasive cleaning agent includes an elastic material containing a soluble nitrogen substance as a primary component, which is obtained from tubers of devil's tongue and which contains mannan as a primary component, and a 10% to 30% of water; and 1 to 30 percent by weight, with respect to the elastic material, of abrasive grains of size #220 or less, which are supported on surfaces of the elastic material and/or are buried therein, so that the grain diameter on the whole is in the range of 88 to 1,190 ?m.Type: GrantFiled: June 19, 2008Date of Patent: September 10, 2013Assignee: Fuji Kihan Co., Ltd.Inventor: Yoshio Miyasaka
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Publication number: 20130067669Abstract: The present invention relates to a liquid cleaning composition comprising abrasive cleaning particles.Type: ApplicationFiled: September 18, 2012Publication date: March 21, 2013Inventor: The Procter & Gamble Company
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Publication number: 20130000209Abstract: Methods of treating a plurality of particles comprise functionalizing a plurality of microscale diamond particles by covalently bonding one or more molecular groups selected from the group consisting of —OH functional groups, —COOH functional groups, —R—COOH functional groups, wherein R comprises alkyls, —Ph—COOH functional groups, wherein Ph comprises phenolics, polymers, oligomers, monomers, glycols, sugars, ionic functional groups, metallic functional groups, and organo-metallic functional groups to outer surfaces of at least some particles of the plurality of microscale diamond particles. A stability of the functionalized plurality of microscale diamond particles in dispersion is increased as compared to a plurality of microscale diamond particles that has not been functionalized.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Soma Chakraborty, Gaurav Agrawal
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Patent number: 8298307Abstract: An abrasive that can impart a mirror finish, glossiness, or the like to a surface of a workpiece by blasting is provided. A crosslinked polyrotaxane compound having a network structure where crosslinking points are circular molecules of polyrotaxane and also having abrasive grains dispersedly mixed therein is obtained by causing chemical bonding between the circular molecules of the polyrotaxane in a state where the abrasive grains and the polyrotaxane are mixed. Then, the crosslinked polyrotaxane compound is granulated to a predetermined grain diameter to obtain a gel-like abrasive where a part of the dispersedly mixed abrasive grain is exposed at the surface. By using the thus-obtained gel-like abrasive in blasting by projecting the abrasive at an angle tilted with respect to a surface of a workpiece, mirror finishing or the like is possible without making the surface of the workpiece pearskin-like.Type: GrantFiled: March 4, 2009Date of Patent: October 30, 2012Assignee: Fuji Manufacturing Co., Ltd.Inventors: Keiji Mase, Shozo Ishibashi, Hirofumi Nakayama, Changming Zhao, Christian Ruslim
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Publication number: 20120192500Abstract: A coated abrasive product includes a particulate material containing green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles, a nanoparticle binder, a dual function material, and a cross-linking agent. These green unfired abrasive aggregates can also be used in free abrasive products and bonded abrasive products.Type: ApplicationFiled: December 30, 2011Publication date: August 2, 2012Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES, INC.Inventors: Jianna Wang, James J. Manning, Paul S. Goldsmith, Anthony C. Gaeta
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Publication number: 20120167477Abstract: An abrasive article comprising an abrasive particle including a core comprising a compressible material, an intermediate layer comprising a binder material overlying an exterior surface of the core, and an outer layer comprising abrasive grains overlying the intermediate layer.Type: ApplicationFiled: December 29, 2011Publication date: July 5, 2012Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES, INC.Inventors: Jianna Wang, Guan Wang, Charles G. Herbert
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Patent number: 7998229Abstract: The polishing composition contains polyoxyethylene sorbitan mono-fatty acid ester, silicon dioxide, water soluble cellulose, an alkaline compound, and water. The content of polyoxyethylene sorbitan mono-fatty acid ester in the polishing composition is less than 0.0025% by mass. The polishing composition is appropriate for final polishing of silicon wafers.Type: GrantFiled: February 2, 2007Date of Patent: August 16, 2011Assignee: Fujimi IncorporatedInventor: Shuhei Yamada
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Patent number: 7803203Abstract: The invention provides a composition for chemical-mechanical polishing. The composition comprises an abrasive, a first metal rate polishing modifier agent, a second metal rate polishing modifier agent, and a liquid carrier. In one embodiment, the first metal rate polishing modifier agent has a standard reduction potential less than 0.34 V relative to a standard hydrogen electrode, and the second metal rate polishing modifier agent has a standard reduction potential greater than 0.34 V relative to a standard hydrogen electrode. In other embodiments, the first and second metal rate polishing modifier agents are different oxidizing agents.Type: GrantFiled: February 9, 2007Date of Patent: September 28, 2010Assignee: Cabot Microelectronics CorporationInventors: Francesco De Rege Thesauro, Steven Grumbine, Phillip Carter, Shoutian Li, Jian Zhang, David Schroeder, Ming-Shih Tsai
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Publication number: 20100107509Abstract: An abrasive slurry, abrasive article, and method is provided for forming an abrasive coating on a surface of a backing. The abrasive slurry includes a continuous phase, a first discontinuous phase of abrasive particles dispersed in the continuous liquid phase, and a second discontinuous phase of binder precursor particles dispersed in the continuous liquid phase, so that the continuous liquid phase carries the first and second discontinuous phases. A coated abrasive article is formed by coating the abrasive slurry onto the surface of the backing, and then removing the continuous phase.Type: ApplicationFiled: October 23, 2009Publication date: May 6, 2010Inventor: Olivier L. Guiselin
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Publication number: 20090098814Abstract: Polishing tools and their methods of manufacture and use are disclosed. In one aspect, a polishing device is provided, including a plurality of polymeric fibers longitudinally arranged and embedded in a polymeric binder, the polymeric binder having a stiffness that is less than a stiffness of the polymeric fibers, and a working end of the plurality of polymeric fibers configured such that tips of the polymeric fibers are oriented to contact a work piece.Type: ApplicationFiled: October 6, 2008Publication date: April 16, 2009Inventor: Chien-Min Sung
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Publication number: 20090068930Abstract: An abrasive cleaning agent is provided which can be used for a polishing process for polishing a surface of a workpiece to form a mirror surface, which suppresses generation of static electricity and adhesion of stains to the workpiece, which decreases a crushing ratio, and which has a low environmental burden when the abrasive cleaning agent is disposed of. The above abrasive cleaning agent includes an elastic material containing a soluble nitrogen substance as a primary component, which is obtained from tubers of devil's tongue and which contains mannan as a primary component, and a 10% to 30% of water; and 1 to 30 percent by weight, with respect to the elastic material, of abrasive grains of size #220 or less, which are supported on surfaces of the elastic material and/or are buried therein, so that the grain diameter on the whole is in the range of 88 to 1,190 ?m.Type: ApplicationFiled: June 19, 2008Publication date: March 12, 2009Inventor: Yoshio Miyasaka
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Patent number: 7316603Abstract: A composition suitable for tantalum chemical-mechanical polishing (CMP) comprises an abrasive, an organic oxidizer, and a liquid carrier therefor. The organic oxidizer has a standard redox potential (E0) of not more than about 0.5 V relative to a standard hydrogen electrode. The oxidized form comprises at least one pi-conjugated ring, which includes at least one heteroatom directly attached to the ring. The heteroatom can be a N, O, S or a combination thereof. In a method embodiment, a CMP composition comprising an abrasive, and organic oxidizer having an E0 of not more than about 0.7 V relative to a standard hydrogen electrode, and a liquid carrier therefor, is utilized to polish a tantalum-containing surface of a substrate, by abrading the surface of the substrate with the composition, preferably with the aid of a polishing pad.Type: GrantFiled: September 26, 2005Date of Patent: January 8, 2008Assignee: Cabot Microelectronics CorporationInventors: Phillip W. Carter, Jian Zhang, Steven K. Grumbine, Francesco De Rege Thesauro
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Patent number: 7300478Abstract: The present invention provides an aqueous slurry composition that comprises cerium oxide and/or cerium oxide-containing mixed rare earth oxide abrasive particles, a polyacrylate, and an agent that retards hard settling. The agent that retards hard settling is preferably a polysaccharide such as xanthan gum, microcrystalline cellulose and/or sodium alginate, the latter of which may be treated with a divalent metal salt such as calcium carbonate. The slurry composition according to the invention can be used to polish glass and glass ceramics at a high removal rate, but does not hard settle upon extended static conditions and can be easily resuspended. The present invention also provides a method of polishing a glass or glass ceramic substrate using the slurry composition.Type: GrantFiled: May 22, 2003Date of Patent: November 27, 2007Assignee: Ferro CorporationInventors: Steven A. Ferranti, Dana L. Zagari, LeVern G. Burm, Jr., Karla Marie Goff
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Patent number: 7077879Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.Type: GrantFiled: June 16, 2004Date of Patent: July 18, 2006Assignee: JSR CorporationInventors: Toshihiro Ogawa, Kou Hasegawa, Nobuo Kawahashi
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Publication number: 20040157532Abstract: The present invention relates to novel glass-like polysaccharides, a method of treating a substance with a glass-like polysaccharide, and methods of producing these glass-like polysaccharides.Type: ApplicationFiled: January 14, 2004Publication date: August 12, 2004Inventors: George Koutlakis, Cameron L. Drake
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Publication number: 20040098924Abstract: A polishing composition for reducing the haze level of the surface of silicon wafers contains hydroxyethyl cellulose, polyethylene oxide, an alkaline compound, water, and silicon dioxide.Type: ApplicationFiled: September 29, 2003Publication date: May 27, 2004Inventor: Shoji Iwasa
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Patent number: 6685755Abstract: An abrasive article including from about 40 to about 80 volume percent interconnected porosity, the article being useful as a segment for a segmented grinding wheel, and a method for fabricating the same. The method includes blending a mixture of abrasive grain, bond material and dispersoid particles, the mixture including from about 40 to about 80 volume percent dispersoid particles. In one embodiment the mixture includes from about 50 to about 80 volume percent dispersoid particles. In another embodiment the mixture includes an organic bond material and from about 40 to about 80 volume percent dispersoid particles. The powder mixture is then pressed into an abrasive laden composite and thermally processed. After cooling the composite is immersed into a solvent, which dissolves substantially all of the dispersoid particles, leaving a highly porous, bonded abrasive article.Type: GrantFiled: November 21, 2001Date of Patent: February 3, 2004Assignee: Saint-Gobain Abrasives Technology CompanyInventors: Srinivasan Ramanath, Sergej-Tomislav Buljan, Jason R. Wilson, Jeri Ann S. Ikeda
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Patent number: 6645264Abstract: It is an object of the invention to provide a composition for forming a polishing pad comprising substances having specific functional groups exhibiting excellent hydrophilic properties and the like, a crosslinked body for polishing pad as well as a polishing pad with excellent water resisting and durability which exhibits excellent polishing performance including a high removal rate and method for producing thereof. The composition for forming a polishing pad comprises a crosslinkable elastomer having no carboxyl, amino, hydroxyl, epoxy, sulfonic acid and phosphoric acid groups, and a water-insoluble substance having at least one functional group selected from the group consisting of carboxyl, amino, hydroxyl, epoxy, sulfonic acid and phosphoric acid groups. And a water-soluble substance such as cyclodextrin may be contained. A polishing pad can be manufactured using the composition above or the crosslinked body for polishing pad, and porous polishing pads may also be obtained.Type: GrantFiled: October 23, 2001Date of Patent: November 11, 2003Assignee: JSR CorporationInventors: Kou Hasegawa, Tomoo Koumura, Yutaka Kobayashi
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Publication number: 20020088183Abstract: A microabrasive tool is formed from a slurry including liquid, abrasive grains, a bonding material, and a polymer—for example, gellan gum. The slurry is cast in a mold, and the polymer is ionically cross-linked. Cross-linking the polymer fixes the structure of the bonding material and the abrasive grains, wherein the abrasive grains are dispersed substantially uniformly within the bonding material. The ionically cross-linked structure of bonding material and abrasive grains can then be fired to form a microabrasive tool.Type: ApplicationFiled: January 16, 2002Publication date: July 11, 2002Applicant: Saint-Gobain Abrasives, Inc.Inventors: Kenneth E. Manwiller, Anne B. Hardy
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Patent number: 6375692Abstract: A microabrasive tool is formed from a slurry including liquid, abrasive grains, a bonding material, and a polymer—for example, gellan gum. The slurry is cast in a mold, and the polymer is ionically cross-linked. Cross-linking the polymer fixes the structure of the bonding material and the abrasive grains, wherein the abrasive grains are dispersed substantially uniformly within the bonding material. The ionically cross-linked structure of bonding material and abrasive grains can then be fired to form a microabrasive tool.Type: GrantFiled: July 29, 1999Date of Patent: April 23, 2002Assignee: Saint-Gobain Abrasives Technology CompanyInventors: Kenneth E. Manwiller, Anne B. Hardy
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Publication number: 20020039875Abstract: The object of the present invention is to provide a polishing agent for processing semiconductor, which can control coagulation and sedimentation and has stable and re-productive polishing properties under a proper dispersing condition to prevent generation of polishing flaw. The polishing agent for processing semiconductor comprises a compound having glucose structure, polishing particles and water.Type: ApplicationFiled: April 19, 2001Publication date: April 4, 2002Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Toshio Kobayashi, Toshiyuki Toyoshima, Suguru Nagae, Masanobu Iwasaki, Kouichirou Tsutahara, Shin Hasegawa
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Patent number: 6162268Abstract: The invention provides a mixture for polishing surfaces. The mixture includes polishing particles having an average size of less than 10 .mu.m and water. It also includes an accelerator for chemically attacking a surface and a starch for reducing vibration of polishing machines.Type: GrantFiled: May 3, 1999Date of Patent: December 19, 2000Assignee: Praxair S. T. Technology, Inc.Inventors: James Kent Knapp, Doris Kwok
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Patent number: 6159257Abstract: The present invention relates to high amylose, water-resistant, glass-like polysaccharide abrasive grits and a method of making the same.Type: GrantFiled: October 21, 1998Date of Patent: December 12, 2000Assignee: ADM Agri-Industries, Ltd.Inventors: George Koutlakis, Paul LeBlanc
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Patent number: 5578362Abstract: The present invention relates to an article of manufacture or polishing pad for altering a surface of a workpiece, such as polishing or planarizing a semiconductor device. The article includes a polymeric matrix impregnated with a plurality of polymeric microelements, each polymeric microelement having a void space therein. The article has a work surface and a subsurface proximate to the work surface. When the article is in contact with a working environment, polymeric microelements at the work surface of the article are less rigid than polymeric elements embedded in the subsurface. As the work surface of the article is abraded during use, the work surface of the pad may be continuously regenerated. In alternative preferred embodiments, the work surface may further include a minitexture and/or a macrotexture. Preferably, the minitexture is formed by fractal patterning at least a portion of the work surface.Type: GrantFiled: July 12, 1994Date of Patent: November 26, 1996Assignee: Rodel, Inc.Inventors: Heinz F. Reinhardt, John V. H. Roberts, Harry G. McClain, William D. Budinger, Elmer W. Jensen
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Patent number: 5367068Abstract: The present invention relates to a method for treating, and in particular for abrading surfaces, utilizing glass-like polysaccharide grits. The invention also extends to novel glass-like polysaccharide products, especially starches, and to processes for the production thereof. Additionally, there is disclosed cross-linked polysaccharide materials and glass-like starches having a substantially occluded water component. Combinations of these various polysaccharide grits and other abrasive grit materials are also disclosed.Type: GrantFiled: November 25, 1992Date of Patent: November 22, 1994Assignee: ADM Agri-Industries, Ltd.Inventors: Christopher C. Lane, Ruben P. Lenz, Costa Athanassoulias
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Patent number: 5360903Abstract: The present invention relates to a method for treating, and in particular for abrading surfaces, utilizing glass-like polysaccharide grits. The invention also extends to novel glass-like polysaccharide products, especially starches, and to processes for the production thereof. Additionally, there is disclosed cross-linked polysaccharide materials and glass-like starches having a substantially occluded water component. Combinations of these various polysaccharide grits and other abrasive grit materials are also disclosed.Type: GrantFiled: November 25, 1992Date of Patent: November 1, 1994Assignee: ADM Agri-Industries, Ltd.Inventors: Christopher C. Lane, Ruben P. Lenz, Costa Athanassoulias
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Patent number: 5210982Abstract: A composition for hardening animal or collagen based glue comprising a stabilized product of urea formaldehyde is provided and an article and method of manufacture thereof. Animal glue containing the hardening composition has reduced solubility in water, reduced swelling capacity, increased thermal and mechanical properties, and a reasonable pot-life, without disturbing the natural ability of the animal glue to biodegrade. The disclosed hardened animal glue may be used to adhere abrasive particles to flexible sheets of paper or cloth, commonly used in the manufacture of sandpaper or sandcloth, and eliminates the need for application of a sizing coat to said flexible sheets.Type: GrantFiled: January 22, 1991Date of Patent: May 18, 1993Inventors: Ronald S. Kormanek, Ilie V. Mandru
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Patent number: 5203882Abstract: The use of small amount of silica sol in conjunction with an organic binding agent significantly increases the strength of the bond in a vitreous bonded alumina containing abrasive wheel.Type: GrantFiled: January 27, 1992Date of Patent: April 20, 1993Assignee: Norton CompanyInventors: Lee A. Carman, Xiaoming Li
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Patent number: 5066335Abstract: The present invention relates to a method for treating, and in particular for abrading surfaces, utilizing glass-like polysaccharide grits. The invention also extends to novel glass-like polysaccharide products, especially starches, and to processes for the production thereof. Additionally, there is disclosed cross-linked polysaccharide materials and glass-like starches having a substantially occluded water component. Combinations of these various polysaccharide grits and other abrasive grit materials are also disclosed.Type: GrantFiled: May 2, 1989Date of Patent: November 19, 1991Assignee: Ogilvie Mills Ltd.Inventors: Christopher C. Lane, Ruben P. Lenz, Costa Athanassoulias
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Patent number: 5037452Abstract: A method for making vitreous bonded abrasive articles, particularly grinding wheels, is provided that includes the step of blending sugar/starch particles into the other ingredients for making the wheel. The sugar/starch particles are intimate combinations of sugar and starch. Wheels of improved performance are obtained compared to similar wheels made by a comparable method not including the step of blending sugar/starch particles into the abrasive grain, vitreous bond material and other components used for making the wheel.Type: GrantFiled: December 20, 1990Date of Patent: August 6, 1991Assignee: Cincinnati Milacron Inc.Inventors: Roger A. Gary, Soo. C. Yoon
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Patent number: 4920704Abstract: A grinding wheel for use in precision wet grinding which involves the use of a water soluble based coolant. The grinding wheel includes a mix of at least an abrasive and a resin and also an effective amount of a relatively coarse granular water soluble material. Such material is inert to the other components of the mix and achieves a relatively neutral or slight alkaline pH in water solution. As the grinding wheel is used in wet grinding, the surface of the grinding wheel is gradually worn away to expose granules of the water soluble material to the coolant. This causes dissolving of the granules to form clearance pores to aid the free grinding action of the wheel.Type: GrantFiled: July 23, 1987Date of Patent: May 1, 1990Assignee: Red Hill Grinding Wheel CorporationInventors: Richard T. Caserta, Roy E. Zimmerman
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Patent number: 4853000Abstract: The cleaning and polishing composition for metals described herein comprises (a) a flour component, (b) a mineral spirits component, and (c) an abrasive component. The abrasive component comprises various combinations of aluminum oxide, ferric oxide, and chromic oxide, along with various animal fats, tallow glycerides, process oils, and wetting agents. Various metals and alloys, such as aluminum, magnesium, gold, silver, brass, copper, stainless steel, and chromium can be cleaned and polished by these compositions.Type: GrantFiled: November 25, 1987Date of Patent: August 1, 1989Inventor: John L. Potter
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Patent number: 4795496Abstract: Adherent foreign matters such as metal powders and sludges are removed from the surface of work pieces of metal, ceramics or the like in a treating process thereof. Work pieces where foreign matters adhere and a granules composed of a heat-resisting inorganic substance such as sand are put together into a container. The inside of the container is heated to raise the temperature to the melting point of the adherents or to a temperature near it, and an external force is applied; to the container so that the work pieces will move in the container, for example, to rotate the container.Type: GrantFiled: January 29, 1986Date of Patent: January 3, 1989Assignee: Murata Manufacturing Co., Ltd.Inventors: Shintaro Karaki, Yoshikazu Chigodo, Masaaki Okane, Yukio Tanaka
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Patent number: 4444570Abstract: Functional agglomerated speckles, for incorporation in dentifrices, include agglomerates of a water insoluble powdered functional material and water insoluble, ethanol soluble ethyl cellulose. Such speckles satisfactorily maintain their integrity and identity during processing of the dentifrice after addition of the speckles to the main dentifrice body but on storage, after packaging of the dentifrice in dispensing tubes, soften sufficiently so as to become essentially impalpable to one utilizing the dentifrice in brushing his teeth. Despite such softening the speckles continue to maintain their identity as speckles in the dentifrice. The speckles are especially useful in translucent or transparent gel dentifrices which contain components, such as flavoring and surface active agents, which may controllably soften the speckles on storage.Type: GrantFiled: August 30, 1982Date of Patent: April 24, 1984Assignee: Colgate-Palmolive CompanyInventors: Jordan Barth, James Norfleet
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Patent number: 4280821Abstract: This invention relates to the manufacturing of a special "lump abrasive grains", which is to be used as polishing agent and in buffing compound. Basically, the production is composed of gypsum (CASO.sub.4.1/2H.sub.2 O), acting as a base carrier, and a certain kind of abrasive grains (e.g. emery, garnet or alumina), which is adopted in proper quantity and in regular size according to the polishing effect or purpose desired. Then by mixing with binder (e.g. water glass, methyl cellulose, glue, PVA, PVAC) and solidifying with water, new abrasive grains are aggregated in lump. As with its special nature, this new product will thereafter be easily processed into any extent of hardness, any particle size and shape as required.The main characteristics of this invention is illustrated as: during the instant of grinding, the lump grains are split into small lumps; and then ground into evenly fine grains so as to be able to extend the contact time and enforce grinding.Type: GrantFiled: October 2, 1979Date of Patent: July 28, 1981Inventor: Liao Chin-Chi
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Patent number: 4260396Abstract: A composition for polishing silicon and germanium comprises a synthetic amorphous silica polishing agent and a suspending agent selected from the group consisting of water-soluble carboxypolymethylene gums and xanthum gums. The composition may be used for polishing in the form of an aqueous alkaline slurry.Type: GrantFiled: January 16, 1978Date of Patent: April 7, 1981Assignee: W. R. Grace & Co.Inventor: Rimantas Glemza
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Patent number: 4226602Abstract: Resinoid abrasive wheels are continuously produced by preparing pore forming granules having predetermined mechanical strength and containing a substance thermally decomposable at a baking temperature for the production of resinoid abrasive wheels and a blowing agent, kneading the pore forming granules with abrasive grains and a thermosetting synthetic resin binder to prepare an abrasive composition, molding the abrasive composition into a block, heating the block by a high frequency heater, rolling the heated block into a sheet by a multiplicity of pairs of rolls, blanking out circular pieces from the sheet, and baking the circular pieces to cure the binder therein and form pores by the decomposition of at least part of the thermally decomposable substance contained in the granules and by the decomposition of the blowing agent contained in the granules. The resinoid abrasive wheels obtained have pores uniformly dispersed therein.Type: GrantFiled: December 20, 1978Date of Patent: October 7, 1980Inventor: Heijiro Fukuda
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Patent number: 4222747Abstract: The invention relates to a polishing material of the type containing powdered cerium oxide suspended in water.According to the invention, this polishing material also contains, in combination, a substance for use as a thickener and a substance for reducing the surface tension.The polishing material is particularly useful for polishing ophthalmic lenses made from organic materials.Type: GrantFiled: December 27, 1978Date of Patent: September 16, 1980Assignee: Essilor International, Cie Generale d'OptiqueInventors: Jean-Claude Dauguet, Jean-Pierre Mazzone, Pierre Moreau
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Patent number: 4161394Abstract: A solution for use in suspending 0.05 to 15 micron ceria or alumina particles to produce a slurry for polishing lenses and semiconductor wafers is disclosed. The solution consists of water containing from 0.06 to 0.75 percent by weight of xanthan gum and from 0.5 to 5.0 percent by weight of a dispersing agent selected from the group consisting of the condensate of formaldehyde with naphthalene monosulfonic acid, polymethacrylic acid and their ammonium and alkali metal salts. The slurry is prepared by mixing one volume of the solution with about two volumes of water and then dispersing alumina, ceria, or zirconia particles in the resultant mixture. The quantity of ceria or alumina dispersed is in the range 10 to 20 percent by weight based on the combined weight of solution and added water.Type: GrantFiled: June 19, 1978Date of Patent: July 17, 1979Inventor: Glen B. Regan