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公开(公告)号：US12122018B2
公开(公告)日：2024-10-22
申请号：US16640439
申请日：2018-08-21
申请人： CIBO N.V.
发明人： Heiko Lipkens , Frederic Frenay
CPC分类号： B24D3/002 , B24D11/001 , B24D18/0009
摘要： Disc-shaped sanding element (1) and method for manufacturing this sanding element (1) with a circular circumference with at least two layers (4,5,6) bonded to each other containing abrasive grains (11, 12), wherein these layers (4,5,6) extend at least to the circumference of the sanding element (1) in order to form a sanding edge (8) on this circumference (7), wherein each of these layers (4,5,6) has layer properties including compressibility, abrasive grain density, abrasive grain size and grain material. The layers (4,5,6) contain a three-dimensional thread or fibre structure in which said abrasive grains (11,12) are distributed, wherein adjacent layers (4,5,6) have at least one different layer property.
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公开(公告)号：US20240198488A1
公开(公告)日：2024-06-20
申请号：US18585859
申请日：2024-02-23
发明人： Samuel S. MARLIN , Ralph BAUER , Stefan VUJCIC , Paul W. REHRIG , Marie-Camille AUSCHER , Darrell K. EVERTS , Hua FAN , Sujatha K. IYENGAR , Christopher ARCONA , Anthony MARTONE , Brahmanandam V. TANIKELLA
CPC分类号： B24D3/00 , C09K3/1409 , C09K3/1436
摘要： A coated abrasive article includes a substrate and a plurality of abrasive particles overlying the substrate, and the plurality of abrasive particles including tapered abrasive particles having a taper fraction standard deviation of at least 0.025 and not greater than 0.090.
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公开(公告)号：US12011807B2
公开(公告)日：2024-06-18
申请号：US17415150
申请日：2019-12-17
CPC分类号： B24D18/0072 , B24D3/004 , B24D3/28
摘要： Various embodiments of the present disclosure relate to a shaped abrasive particle transfer assembly. The shaped abrasive particle transfer assembly includes a substrate including an adhesive and a plurality of shaped abrasive particles adhered to the substrate and forming a predetermined pattern thereon.
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公开(公告)号：US20240116153A1
公开(公告)日：2024-04-11
申请号：US18544685
申请日：2023-12-19
发明人： Anthony MARTONE , Hua Fan , Kelley McNEAL
CPC分类号： B24D11/02 , B24D3/00 , B24D11/005
摘要： An abrasive article includes a backing; a make coat overlying the backing; and a plurality of abrasive particles overlying the backing and at least partially contained in the make coat; and a make coat thickness ratio (Tg/Ta) of not greater than 1.5, wherein Tg is the average thickness of the make coat at the sides of the abrasive particles and the Ta is the average thickness of the make coat.
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公开(公告)号：US11951594B2
公开(公告)日：2024-04-09
申请号：US16110327
申请日：2018-08-23
发明人： Kosei Kawahara
CPC分类号： B24D15/04 , B24B5/06 , B24B5/40 , B24B19/14 , B24B29/08 , B24B57/02 , B24D3/002 , B24D3/004 , B24D18/009
摘要： To uniformly bring an abrasive into contact with a workpiece and to achieve desired surface roughness. A polishing tool sliding on a narrow part of the workpiece includes an abrasive retaining layer configured to allow an abrasive to be retained on a surface, and an elastic layer that is stacked on the abrasive retaining layer and is configured to press the abrasive retained in the abrasive retaining layer against the workpiece. The elastic layer is preferably elastically deformable over a sliding stroke of the polishing tool, and a driving unit that causes the polishing tool to slide on the workpiece is preferably connected to the polishing tool.
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公开(公告)号：US11945076B2
公开(公告)日：2024-04-02
申请号：US17261709
申请日：2019-07-23
发明人： Amelia W. Koenig , Liming Song , Stephen M. Sanocki , Yu Yang , Yaohua Gao , Aniruddha A. Upadhye , Morgan A. Priolo , Saurabh Batra , Angela S. McLean
CPC分类号： B24D3/004 , B24D3/007 , B24D3/28 , C08J7/042 , C08J7/043 , C08J2367/02 , C08J2453/02 , C08J2461/06
摘要： An article (100) has a polyester film backing (110) and a primer layer (120) including a carboxylated styrene butadiene copolymer crosslinked with a polyfunctional aziridine disposed on a major surface of the polyester film backing (110). Another article includes a polyester backing (110), a primer layer (120) including a carboxylated styrene butadiene copolymer crosslinked with a polyfunctional aziridine disposed on a major surface of the polyester backing (110), and a phenolic layer (140) disposed on the primer layer (120) on a surface opposite the polyester backing (110). The phenolic layer (120) can include abrasive particles (160). Processes for making the articles are also described, as well as methods for abrading a workpiece and improving adhesion between a polyester film backing (110) and a phenolic layer (120) on the polyester backing (110).
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公开(公告)号：US20240042578A1
公开(公告)日：2024-02-08
申请号：US18382431
申请日：2023-10-20
CPC分类号： B24D3/004 , B24D11/001 , D04H1/413 , D04H1/498 , D04H1/64 , D04H1/74 , D04H1/43912 , D04H1/43918
摘要： Various embodiments disclosed relate to an abrasive article. The abrasive article includes a nonwoven web. The nonwoven web includes a first irregular major surface and an opposite second irregular major surface. The nonwoven web further includes a fiber component comprising staple fibers having a linear density ranging from about 50 denier to about 2000 denier and a crimp index value ranging from about 15% to about 60%. The nonwoven web further includes a binder dispensed on the fiber component and abrasive particles dispersed throughout the nonwoven web.
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公开(公告)号：US11865663B2
公开(公告)日：2024-01-09
申请号：US16408571
申请日：2019-05-10
申请人： George Shuai , Gwo Shin Swei
发明人： George Shuai , Gwo Shin Swei
CPC分类号： B24B13/01 , B24B13/00 , B24B13/02 , B24B37/24 , B24D3/007 , B24D3/10 , C09G1/02 , C09K3/1409
摘要： A polishing pad or polishing tape with abrasive particles (e.g., diamond, aluminum-oxide, silicon-carbide, etc.) having an average particle size of between approximately 0.5 micrometers (μm) and 5.0 μm, which are strongly adhered with water-insoluble binders to a flexible and lens-conformable substrate having a cushion so that there is little-to-no shedding or release of the particles from the substrate.
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公开(公告)号：US11858093B2
公开(公告)日：2024-01-02
申请号：US17555059
申请日：2021-12-17
发明人： Yanjun Zhao , Lihua Wang , Gaoliang Zhang , Guanwen Qian , Donghua Zuo , Jianfeng Cao , Guannan Sun
CPC分类号： B24D5/02 , B24D3/005 , B24D3/344 , B24D18/0009 , B24D18/0018 , C09K3/1436 , C09K3/1454
摘要： The present application relates to a composite binding agent grinding wheel, wherein a weight percentage of each raw material of the grinding wheel is: 45-65% of pretreatment abrasive, 8-20% of resin bonding agent, 5-12% of hexagonal boron nitride, 5-10% of silicon dioxide, 5-15% of ceramic powder, 6-12% of prealloy powder bonding agent, and 1-3% of boron powder. The composite binding agent super-hard grinding wheel prepared by the present application can achieve nano-level grinding surface quality when grinding epitaxial wafers, and the grinding wheel has strong self-sharpening and high sharpness. It has obvious advantages in the finishing of silicon carbide crystal epitaxial wafers, which can solve the current limitations of back thinning processing of silicon carbide crystal epitaxial wafers.
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公开(公告)号：US20230364743A1
公开(公告)日：2023-11-16
申请号：US18013678
申请日：2021-07-07
摘要： The present invention is an abrasive composite including a first crosslinkable binder component, wherein when polymerized, has a glass transition temperature (Tg) below room temperature and a modulus of less than about 150 MPa: a second crosslinkable binder component having a Tg above room temperature; a material capable of initiating addition polymerization; and particulate grains having a Mohs hardness value of less than or equal to about 3.
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