EP0776733A1 - Feuille abrasive pour traitement de surface et procédé pour sa production - Google Patents

Feuille abrasive pour traitement de surface et procédé pour sa production Download PDF

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Publication number
EP0776733A1
EP0776733A1 EP95402676A EP95402676A EP0776733A1 EP 0776733 A1 EP0776733 A1 EP 0776733A1 EP 95402676 A EP95402676 A EP 95402676A EP 95402676 A EP95402676 A EP 95402676A EP 0776733 A1 EP0776733 A1 EP 0776733A1
Authority
EP
European Patent Office
Prior art keywords
binder
surface conditioning
web
latex
article according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95402676A
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German (de)
English (en)
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EP0776733B1 (fr
Inventor
Bernard Vincent
Giovanni Battista Paganessi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to EP19950402676 priority Critical patent/EP0776733B1/fr
Priority to DE1995628370 priority patent/DE69528370T2/de
Priority to PCT/US1996/019188 priority patent/WO1997019786A1/fr
Publication of EP0776733A1 publication Critical patent/EP0776733A1/fr
Application granted granted Critical
Publication of EP0776733B1 publication Critical patent/EP0776733B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0027—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001—Manufacture of flexible abrasive materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds

Definitions

  • the present invention relates to surface conditioning articles formed from an organic matrix coated and engulfed by organic binders.
  • the present invention also relates to a method for making a layered composite from which a surface conditioning article may be machined.
  • Surface conditioning articles are surface treatment articles formed from an organic polymeric matrix formed of a solid or foamed organic polymer or a nonwoven fiber web find utility in treating a surface to prepare it for further coatings. Burrs and flashing from cast, drilled or punched parts must be removed to produce a desired shape or surface finish. Surface conditioning articles in the form of wheels, discs, or belts operating at high speeds and high pressures must have sufficient strength and durability when subjected to high use pressure against the workpiece. It is desirous for the article to be flexible to intrude into crevices in the workpiece. In addition, the propensity of the article to smear onto the workpiece must be taken into consideration. Smearing is generally considered deleterious.
  • the term “smear-resistant” is meant to denote embodiments of the invention exhibiting substantially no visible signs of the surface treatment article remaining on the workpiece after the workpiece article has been treated.
  • the articles of the invention can be urged against a workpiece at high operating speeds and/or pressures without smearing of the article onto the workpiece.
  • surface conditioning is used here to include all steps between preliminary removal of material and final polishing or finishing step. Those steps comprise, grinding, lapping, deburring and the like.
  • Polymeric resinous binders used to bond the matrix or to secure abrasive particles within the matrix of such products have generally been either of the hard thermosetting type or the strong, tough elastomeric type.
  • Hard thermosetting resins such as base catalyzed phenol formaldehyde, are widely used to secure abrasive particles to sheet-like backing or to the fibers of a nonwoven web.
  • Such hard resin binders while usually having high tensile strength, low elongation at break or failure, and resistance to significant change when subjected to elevated temperatures, are undesirably susceptible to brittle fracture.
  • Strong, tough elastomeric resin binders are more desirable in certain applications which require tougher, more durable surface treatment products.
  • Such elastomeric binders have excellent tensile strength, a very high elongation at break, and resistance to brittle fracture but may exhibit significant softening at elevated temperatures as might be encountered when the surface treatment article is urged against a workpiece at high speeds and pressures. Such softening may result in smearing or transfer of portions of the article to the surface of the workpiece, which as described previously is not desired by the user.
  • the surface conditioning industry is continually striving for articles which more closely meet user demands.
  • methods of producing surface conditioning articles that are kind to the environment, particularly the air and water, are especially strived for.
  • the articles of the invention are flexible and conformable to allow for their use on complex or textured surfaces and to permit the manufacture of endless belts, for example.
  • the inventive articles should be resistant to both abrasion and brittle fracture to thereby avoid excessive wear of the articles during use.
  • the articles should be heat resistant to withstand the high temperatures typically experienced when the articles are subjected to high use pressures and/or speeds while simultaneously avoiding smearing on the treated surfaces.
  • a first or "prebond” coating of a binder precursor solution which includes one or more of the above-named resins, is coated on the web and cured by exposure to heat in order to impart sufficient strength to the nonwoven web for further processing.
  • a "make” or “slurry” coating comprising a resinous organic binder is applied to the web to secure fine abrasive grains throughout the lofty fibrous mat and cured.
  • a "size” coating of resinous binder material and optional abrasive particles is applied, usually by spray-coating, over the prebonded web to increase the abrasive characteristics of the article, such as preventing the abrasive mineral from shelling.
  • the size coating is cured.
  • the resins of the various "prebond", “slurry”, and “size” coatings may be chemically different.
  • the prebond coat protects the fibers of the web from softening when the article is used under high application pressures.
  • Phenolic resin binders in particular, are used extensively to manufacture nonwoven abrasive articles as a binder for the abrasive particles because of their thermal properties, availability, low cost, and ease of handling.
  • the monomers used in greatest volume to produce phenolic resins are phenol and formaldehyde.
  • a compatibility problem arises from the use of the phenolic binder in particular together with a nonwoven web based on polyamide fibers.
  • a particularly useful known nonwoven abrasive article is one comprising a web of polyamide fibers and a binder comprising resole-type phenolic resins. Such a composition provides for strong, tough, temperature resistant abrasive articles that may be made economically.
  • Rubber-modified phenolic resins have also been used in the manufacture of nonwoven abrasive articles, such as in the disclosure of commonly assigned U.S. Patent N° 2 958 593 (Hoover et al.), as an optional rubber treatment disposed on one side of the structure to increase the resistance of the overall abrasive article structure to tearing and shredding.
  • Hoover et al. Rubber-modified phenolic resins have also been used in the manufacture of nonwoven abrasive articles, such as in the disclosure of commonly assigned U.S. Patent N° 2 958 593 (Hoover et al.), as an optional rubber treatment disposed on one side of the structure to increase the resistance of the overall abrasive article structure to tearing and shredding.
  • Hoover et al. Hoover et al.
  • a nylon fiber web being first coated with a phenol-formaldehyde and amine terminated polyamide resin-containing coating, followed by transmitting the phenol exposed web to a curing oven where the coated web is so heat-treated such that the emitted treated web is cured to a nontacky state while still warm, and, only thereafter, a rubbery composition based on a butadiene acrylonitrile copolymer latex (viz. trade designation "Hycar® Latex 1561", from B.F. Goodrich Co.) is applied to the opposite side of the web and heat-cured in an oven.
  • a rubbery composition based on a butadiene acrylonitrile copolymer latex viz. trade designation "Hycar® Latex 1561", from B.F. Goodrich Co.
  • the goal of the present invention is to provide surface conditioning articles which can be urged against a workpiece at high pressure and/or high speed with no undesirable smearing or other transfer of the article to the workpiece surface.
  • the goal of the present invention is further to provide a surface conditioning article prepared with water-based formulations, said article having properties, especially, flexibility and smear resistance, equivalent to polyurethane standard reference article currently existing.
  • Water-based formulations for surface treating products having a wider range of possible use than the specific surface conditioning article of the present invention have been disclosed in US 5 306 319.
  • the water-based formulations of US 5 306 319 comprise binders consisting in a reaction product of polyurethane prepolymers and a plurality of adducts. These adducts render the preparation method difficult and costly. Moreover, the properties do not totally satisfy all of the customers needs defined as "cut”, “wear resistance”, “smear resistance” and “flexibility” for the specific field of the surface conditioning article.
  • Another goal of the present invention is therefore to provide new water-based formulations particularly useful as surface conditioning article, which are less expensive to manufacture than the articles disclosed in the aforemontioned US patent n° 5 306 319.
  • a first aspect of the invention is a surface conditioning article comprising an organic matrix and water-based organic binders adhered to said matrix, said binders including a first or "prebond” binder and a second or “slurry” binder with abrasive particles dispersed and adhered within said second binder, wherein the first binder comprises a mixture of a phenolic resin and a carboxylated butadiene-acrylonitrile copolymer latex, wherein the weight ratio of dry materials of said latex versus said phenolic resin is in the range of 90/10 to 60/40.
  • Phenolic resin provides hardness, cohesion, adhesion of the fiber web and between different layers and high thermal resistance to the coating ; it is a perfect support for the layers which include minerals in abrasive applications. Phenolic resin may be too brittle and too hard to be used alone in an alternative coating to urethanes.
  • the phenolic resin used preferably will have a very high water tolerance to allow admixture with a high percentage of a latex dispersion without the formation of gels denoting incompatibility. Such a phenolic resin would not have advanced much in the condensation reaction between formaldehyde and phenol and would have a low molecular weight.
  • the said phenolic resin of the first binder is a resole-type phenolic resin with a water tolerance of at least 500 % by weight. More particularly, the water tolerance comprises from 500 to 2500 %.
  • a water tolerance of 500 % by weight means that the resin can be mixed with 5 times its own weight with water without precipitation.
  • the first binder has a molecular weight in the range of 100 to 1000.
  • NBR latex carboxylated butadiene-acrylonitrile latex
  • An important function of the carboxylated butadiene-acrylonitrile latex (herein after referred to as "NBR" latex) in the present invention is to provide outstanding thermal resistance for a flexible coating. This protects the fibers from softening at high temperatures. This gives to the final product flexibility and smear resistance in the same time. This function is linked to the way carboxylated NBR latex degrades with temperature -cyclize before melting- in contrast to systems where such a cyclization is not possible. They show no residual thermoplasticity whatever ; a property that makes for example NBR latexes highly suitable components for brake lining and clutch plate facings.
  • NBR latex provides high flexibility (Tg close to -30°C), conformability, softness, and very high resistance to flex fatigue and very good mechanical properties for such flexible coatings. It shows high resistance to abrasion and wear. It keeps high flexibility at low temperatures. In view of all these properties, it is preferred to use a carboxylated NBR latex with high acrylonitrile ratio especially wherein the said butadiene-acrylonitrile latex has a molar percentage of acrylonitrile of at least 25 %. More particularly the molar percentage of acrylonitrile is from 25 to 35 %.
  • the latex particles have a size in the range of 10 to 500 nm.
  • the articles of the invention have a wide available range of flexibility and smear-resistance, thus making them useful in articles designed to abrade a workpiece, deburr a workpiece, wipe the surface of a workpiece, or buff a workpiece.
  • inventive binder is applied to the organic matrix in the form of an aqueous composition, thus eliminating or substantially reducing the release of volatile organic compounds in the process of making the inventive articles.
  • the carboxyl groups allow self crosslinking of the copolymer without use of catalyzing agents.
  • the organic matrix comprises an open, lofty, three-dimensional nonwoven web of the article which comprises a plurality of organic polymeric fibers bound together at mutual contact points by the first binder.
  • the article comprises a third or "size" binder coated over the second binder, said third binder comprising a mixture of phenolic resin and carboxylated butadiene acrylonitrile copolymer latex.
  • the weight ratio of dry materials of said latex versus said phenolic resin in the third binder is in the range of 60/40 to 40/60.
  • the phenolic resin and carboxylated butadiene-acrylonitrile latex are the same in the first and third binders.
  • the phenolic resin of the first and third binders may be selected from commercial materials.
  • Suitable commercial phenolic resins for use in the first and third binders include those available under the trade designation Lacfen 420® available from Satef Huttens Albertus Spa as well as SW378® available from Bakelite.
  • Suitable commercial butadiene-acrylonitrile latex materials include those known under the trade designations Perbunan® N2890 from Bayer as well as LN240S® available from BASF.
  • the second binder of the article according to the present invention may comprise conventional water-based resole-type phenolic resin.
  • Another aspect of the invention is a method of making a layered composite from which a surface conditioning article according to the present invention may be machined, the metod comprising :
  • the method comprises :
  • the nonwoven web may be selected from commercial materials.
  • step a) comprises two sub-steps :
  • Surface conditioning articles of this inventions are suitable for use in a variety of applications. They may be adapted for use on any workpiece composition including metal, wood, plastics, composites, glass, ceramics, concrete, and others. They are designed for a use intermediate between the aggressive removal of material from a workpiece and clean a workpiece in preparation for painting, plating, etc...
  • Surface conditioning articles of the invention are especially effective in conditioning metals without substantial smearing onto the metal workpiece.
  • articles of the invention employ inventive binders which allow the articles to exhibit a high flex fatigue resistance (in other words, able to deform and penetrate into grooves and indentations in a metal workpiece, and then return to its original shape, in a cyclic process).
  • the binders may contain optional additives or fillers such as colorants, thickening agent, pH buffering agent and scavengers._A s previously stated, binders are applied to the organic matrix in the form of aqueous compositions (emulsions, dispersions, or slurries).
  • the aqueous compositions may comprise plasticizers, viscosity modifiers, grinding aids and abrasive particles.
  • Thickeners may be used to adjust the viscosity of the aqueous or solvent dispersed binder system, i.e., when in the liquid state, in order to provide for an easily-coatable composition.
  • suitable thickeners include salt of polyacrylic acid carboxymethyl cellulose, guar gum, gum tragacanth, homo- and copolymers of poly(vinyl alcohol), methyl cellulose, modified starch, and the like.
  • the thickening agent increases viscosity of the wet mix so that sufficient weight can be applied with a roll coat process on the fiber web.
  • Suitable pH buffering agents may include materials like triethanolamine, ammonia. pH buffering agent helps thickening efficiency without leaving residual basic component in the wet coating during drying.
  • Suitable scavengers may include materials like urea, or melamine. Scavengers minimize formaldehyde emissions of phenolic resins during drying.
  • colorants are inorganic pigments, organic dyes, and the like.
  • Fillers may include, for example, short organic or inorganic fibers, spheres, or particles. Grinding aids may be materials such as poly(vinyl chloride), potassium fluoroborate, and the like. Fillers may include calcium carbonate, fumed silica, and other materials which are primarily inert with respect to the utility of the articles.
  • Plasticizers may include, for example, phthalic acid esters, oils, and other relatively low molecular weight materials.
  • Abrasive particles are added to the binder system to render the inventive surface conditioning article more aggressive in its action on a workpiece.
  • Suitable abrasive particles include those commonly used in the art.
  • the abrasive granule size and type may be any of those commonly used to make surface conditioning articles.
  • Suitable abrasive particles include silicon carbide, aluminum oxide, cerium oxide, alumina zirconia, cubic boron nitride, garnet, pumice, sand, emery, mica, flint, talc, corundum, quartz, diamond, boron carbide, fused alumina, sintered alumina, alpha-alumina-based ceramic material (available from Minnesota Mining and Manufacturing Company, Saint-Paul, MN under the trade designation "CUBITRON”),and mixtures thereof.
  • Agglomerate abrasive particles such as those described in U.S. Patents n° 4 652 275 and 4 799 939 may also find utility.
  • Softer abrasive particles such as those made of thermoplastics or thermosetting materials glass as well as other softer abrasive particles may be used for polishing applications. It is considered within the skill of the artisan to select the appropriate abrasive material for the particular use without undue experimentation.
  • the organic matrix serves the function of providing strength and structural integrity to the surface conditioning articles of the present invention while also providing a substrate for the binders and abrasive particles.
  • the organic matrix may be either a solid of foamed organic polymer or a nonwoven web comprised of organic fibers, preferably hydrophilic organic fibers. If hydrophilic organic fibers are employed, a heating step may be eliminated or reduced as the fibers will absorb water from the emulsified binder.
  • An example of a lofty, nonwoven web formed of crimped staple fibers adhered at points of contact with binder which contains abrasive particles is taught in U.S. Patent N° 2 958 593 (Hoover et al.).
  • U.S. Patent N° 4 227 350 discloses a matrix formed of three-dimensionally undulated inter-engaged autogenously bonded continuous filaments.
  • the organic matrix may be comprised of thermoplastic organic staple fibers, such as nylon (polyamide), polyester, and the like or a combination of thermoplastic and cellulosic staple fibers, such as viscose rayon, and the like.
  • thermoplastic fibers are nylon staple fibers, especially nylon 6,6. If a combination of thermoplastic organic fibers and cellulosic fibers are employed.
  • the weight of cellulosic fibers as a percentage of the total fibers weight may range from about 5 weight percent to about 50 weight percent.
  • said open, lofty, three-dimensional nonwoven web comprises organic polyester or polyamide fibers.
  • the fibers preferably have denier ranging from about 10 to 100 and length ranging from about 10 to 100 mm.
  • the surface conditioning article within the present invention may be applied on a support such as a support made of cellulosic fibers, or the surface conditioning article may comprise the said organic matrix affixed to a reinforcing scrim such as a woven scrim of nylon, PET or other fabric in order to consolidate the organic matrix especially the non-woven web.
  • a support such as a support made of cellulosic fibers
  • the surface conditioning article may comprise the said organic matrix affixed to a reinforcing scrim such as a woven scrim of nylon, PET or other fabric in order to consolidate the organic matrix especially the non-woven web.
  • Surface conditioning articles within the present invention may take any of a variety of conventional forms such as sheets, blocks, strips, belts, brushes, rotary flaps, discs, or solid or foamed wheels.
  • Especially useful forms are wheels in the form of a disc or right circular cylinder having dimensions which may be very small, e.g., a cylinder height on the order of a few millimeters, or very large, e.g., two meters or more, and a diameter which may be very small, e.g., on the order of a few centimeters, or very large, e.g., one meter or more.
  • the wheels typically have a central opening for support by an appropriate arbor or other mechanical holding means to enable the wheel to be rotated in use.
  • Wheel dimensions, configurations, means of support, and means of rotation are well known in the art.
  • a useful summary of various wheel forms of surface treatment articles which may be made using the inventive binders are described in the publication "3M Wheels", published in 1990 by Minnesota Mining and Manufacturing Company, Saint-Paul, MN (“3M”), which is incorporated herein by reference.
  • Surface treatment articles of the present invention comprising an organic matrix and a binder adhered to said matrix may be prepared by forming a layered composite.
  • Layered composites (known in the art as "slabs") may be produced by cutting, punching, or otherwise machining uncured or partially cured webs into sheets or discs which are then overlapped on one another and then compressed and cured to make a higher density slab. Such cutting, punching and other machining techniques are well known to those skilled in the art.
  • a layered composite may be used as the source of a multitude of articles of the invention each having various diameters, or all the same diameter, as required by the user.
  • Article of the invention may be produced form the layered composites by machining using appropriate techniques which are also well known in the art. For example, a wheel shape may be die cut from a slab of the layered composite. Additionally, ribbons, strips, or elongate segments of the layered composite may be spirally wound into a wheel shape while the binder is uncured or partially cured and then fully cured to yield a wheel.
  • Figure 1 represents the results of the study of prebond flexibility versus latex/resin dry ratio for the products of the Examples.
  • Figure 2 represents the results of the study of wear resistance versus latex/resin dry ratio for the products of the Examples.
  • Figure 3 represents the results of the prebond study of the "cut” versus latex/resin dry ratio for the products of the Examples.
  • Figure 4 represents the results of roughness measurements versus latex/resin dry ratio of the size binder at the "size" level for the products of the Examples.
  • Figure 5 represents the results of the effect on disc “wear” versus the dry ratio latex/resin at the "size” level for the products of the Examples.
  • Figure 6 represents the effect on "cut” versus the dry ratio latex/resin at the "size” level for the products of the Examples.
  • Figure 7 represents the results of tables 1 and 2 for "smearing resistance”, “edge resistance”, “paint removal” and “loading resistance”for the articles of Examples 15-25.
  • Figure 8 represents the results for "cut & wear in belt disc form” and for “finish level on stainless steel” for the articles of Examples 15-19.
  • a commercial available surface conditioning belt was used in the examples as control example a.
  • the surface conditioning belt is commercially available from the Minnesota Mining and Manufacturing Company of Saint-Paul, Minnesota under the trade designation SCOTCH-BRITE and is a scrim-backed surface conditioning belt comprising 80 grit aluminium oxide abrasive particles adhered to a nonwoven substrate by a cured phenolic resin.
  • a flexible urethane resin size coat covers the phenolic.
  • the nonwoven substrate comprises 70 and 58 denier fibers needle tacked on a nylon open scrim.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP19950402676 1995-11-28 1995-11-28 Feuille abrasive pour traitement de surface et procédé pour sa production Expired - Lifetime EP0776733B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19950402676 EP0776733B1 (fr) 1995-11-28 1995-11-28 Feuille abrasive pour traitement de surface et procédé pour sa production
DE1995628370 DE69528370T2 (de) 1995-11-28 1995-11-28 Schleiffolie zur Oberflächenkonditionierung und Verfahren zu ihrer Herstellung
PCT/US1996/019188 WO1997019786A1 (fr) 1995-11-28 1996-11-27 Articles pour le conditionnement de surfaces et procedes pour les realiser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19950402676 EP0776733B1 (fr) 1995-11-28 1995-11-28 Feuille abrasive pour traitement de surface et procédé pour sa production

Publications (2)

Publication Number Publication Date
EP0776733A1 true EP0776733A1 (fr) 1997-06-04
EP0776733B1 EP0776733B1 (fr) 2002-09-25

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EP19950402676 Expired - Lifetime EP0776733B1 (fr) 1995-11-28 1995-11-28 Feuille abrasive pour traitement de surface et procédé pour sa production

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DE (1) DE69528370T2 (fr)
WO (1) WO1997019786A1 (fr)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN101966694A (zh) * 2010-10-15 2011-02-09 江苏省新型复合研磨材料及制品工程技术研究中心 高效能弹性复合研磨片及其制备方法
CN102039561A (zh) * 2010-10-15 2011-05-04 江苏省新型复合研磨材料及制品工程技术研究中心 高精度pcb板专用研磨材料及制造方法
EP2625002A4 (fr) * 2010-10-06 2016-07-27 Saint Gobain Abrasives Inc Composite non-tissé abrasif comprenant des particules abrasives de diamant
EP3938144A4 (fr) * 2019-03-15 2023-01-04 Cukurova Kimya Endustrisi A.S. Résine pour matériaux abrasifs et procédé de production de celle-ci
US11945076B2 (en) 2018-07-23 2024-04-02 3M Innovative Properties Company Articles including polyester backing and primer layer and related methods

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FR2346106A1 (fr) * 1976-03-31 1977-10-28 Norton Co Support d'abrasif applique
SU1134579A1 (ru) * 1983-02-09 1985-01-15 Украинский Филиал Всесоюзного Научно-Исследовательского Института Абразивов И Шлифования Способ получени основы шлифовальной шкурки
EP0139309A2 (fr) * 1983-10-04 1985-05-02 Rütgerswerke Aktiengesellschaft Adhésif à plusieurs constituants ayant une conservation en pot prolongée
SU1509239A1 (ru) * 1986-06-18 1989-09-23 Тираспольский Завод "Молдавизолит" Состав дл изготовлени абразивного инструмента
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JPS525373A (en) * 1975-07-02 1977-01-17 Japan Vilene Co Ltd Manufacture of rough textured unwoven fabrics
FR2346106A1 (fr) * 1976-03-31 1977-10-28 Norton Co Support d'abrasif applique
SU1134579A1 (ru) * 1983-02-09 1985-01-15 Украинский Филиал Всесоюзного Научно-Исследовательского Института Абразивов И Шлифования Способ получени основы шлифовальной шкурки
EP0139309A2 (fr) * 1983-10-04 1985-05-02 Rütgerswerke Aktiengesellschaft Adhésif à plusieurs constituants ayant une conservation en pot prolongée
SU1509239A1 (ru) * 1986-06-18 1989-09-23 Тираспольский Завод "Молдавизолит" Состав дл изготовлени абразивного инструмента
DE4138717A1 (de) * 1991-11-21 1993-05-27 Axel Klauke Verfahren zur impraegnierung von glasseidengewebe mit einer modifizierten waessrigen dispersion

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EP2625002A4 (fr) * 2010-10-06 2016-07-27 Saint Gobain Abrasives Inc Composite non-tissé abrasif comprenant des particules abrasives de diamant
CN101966694A (zh) * 2010-10-15 2011-02-09 江苏省新型复合研磨材料及制品工程技术研究中心 高效能弹性复合研磨片及其制备方法
CN102039561A (zh) * 2010-10-15 2011-05-04 江苏省新型复合研磨材料及制品工程技术研究中心 高精度pcb板专用研磨材料及制造方法
CN101966694B (zh) * 2010-10-15 2012-03-28 江苏省新型复合研磨材料及制品工程技术研究中心 高效能弹性复合研磨片及其制备方法
CN102039561B (zh) * 2010-10-15 2012-08-08 江苏省新型复合研磨材料及制品工程技术研究中心 高精度pcb板专用研磨材料及制造方法
US11945076B2 (en) 2018-07-23 2024-04-02 3M Innovative Properties Company Articles including polyester backing and primer layer and related methods
EP3938144A4 (fr) * 2019-03-15 2023-01-04 Cukurova Kimya Endustrisi A.S. Résine pour matériaux abrasifs et procédé de production de celle-ci

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DE69528370T2 (de) 2003-06-05
WO1997019786A1 (fr) 1997-06-05
EP0776733B1 (fr) 2002-09-25

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