Abstract: This invention relates to a unitary roofing shingle sheet comprising (a) an undivided cop section having an unexposable upper portion and a lower portion carrying a partially exposable horizontal band of distinguishable colors or color patterns and (b) exposable tabs in a butt bottom section depending from the lower boundary of the band in the partially exposable portion of (a); the exposable portions of said shingle being covered with weather resistant granules of distinguishable hues or patterns disposed in discrete exposable areas in the band of section (a) and on each of said tabs so as to provide a distinctive color or pattern for each tab and a contrasting color or color pattern above each tab in the adjoining exposable portion of said band of section (a).

Abstract: The biodegradable foamed product is made from a starch graft copolymer with an add-on level of about 5 to about 60%.

Abstract: A bitumen-based waterproofing membrane is provided with an improved edge for sealing with a contiguous membrane to provide a membrane system with improved waterproofing characteristics. A bitumen-based reinforced membrane sheet is coated with granular material to protect the membrane sheet from ultraviolet rays. However, a section of the membrane sheet is first covered with a piece of protective tape which prevents any granular material from being deposited on the lateral section of exposed bitumen beneath the tape. The membrane sheets are then cut immediately prior to the tape or at the edge of the granular coating and then rolled up. Accordingly, the lateral section of bitumen which is covered by the protective tape is on the innermost part of the rolled-up membrane sheet. During installation, the tape is removed and the exposed bitumen or selvage section is disposed below an adjacent or contiguous membrane. Heat is then applied for an easy and effective seal between two adjacent membrane sheets.

Abstract: The disclosure describes a non-magnetic undercoating layer for a magnetic recording medium, coated on the surface of a non-magnetic substrate comprising:non-magnetic particles selected from the group consisting of particles (1) and (2):(1) coated acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles which are produced by adhering not less than 0.01 to 20 wt % (calculated as Al, SiO.sub.2 or Al and SiO.sub.2, and based on acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles as a core material) of an oxide or a hydroxide containing Al, Si or both Al and Si to the surfaces of acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles as a core material, and have a molecular weight-dependent parameter .alpha. represented by the following formula of not less than 0.5:As=K.sub.1 .multidot.M.sup..alpha.wherein M represents the number-average molecular weight of a binder resin, As represents the saturation adsorption of said binder resin, and K.sub.

Abstract: A method for manufacturing bands of bituminized roofing material, wherein a band of porous carrier material is impregnated with bitumen, wherein the band of porous carrier material is provided on a supporting surface provided with openings, hot bitumen is provided on the side of the band of carrier material remote from the supporting surface, and a pressure difference is created across the supporting surface, so that the hot bitumen penetrates into the carrier material.

Abstract: The invention relates to a method of patterning a concrete surface and a pattern transfer mat for use in the method. The pattern transfer mat has a transfer surface having three-dimensional irregularities and carrying a multiplicity of grains to be transferred to the substrate concrete. Concrete is cast against the transfer surface of the mat and cured in situ and the mat is then detached. The aesthetic grains are grains having a cement powder deposited thereon beforehand. The cement powder absorbs water to cause fine air cells therein to collapse. Thus, the finished surface of the case concrete structure is made smoother.

Abstract: A method of coating paper with a paper coating composition having a solids concentration of at least 45% by weight, consisting essentially of an aqueous cationic dispersion of a particulate calcium carbonate pigment and a nonionic or cationic adhesive, wherein the pigment has a particle size distribution such that no more than 1% by weight of the particles have an equivalent spherical diameter larger than 10 microns, at least 65% by weight of the particles have an equivalent spherical diameter smaller than 2 microns and not more than 10% by weight of the particles have an equivalent spherical diameter smaller than 0.25 micron, and wherein said pigment is dispersed with a combination of a cationic polyelectrolyte and an anionic polyelectrolyte, with the amount of cationic polyelectrolyte being in the range of about 0.01% to about 1.5% by weight, based on the weight of the dry pigment, and with the amount of anionic polyelectrolyte being in the range of about 0.01% to about 0.5% by weight.

Abstract: An abrasive tape for cleaning a magnetic information reading apparatus for photographic use. The tape comprises an abrasive layer including an abrasive and a binder and a support therefor. The support havs a characteristic thickness between 40 .mu.m and 180 .mu.m. An abrasive tape package for the apparatus comprises a cartrigde body, and a spool which is placed inside the cartrigde and rotatably supported by the cartrigde through a shaft. In the package, the spool is wound by the abrasive tape wherein the support has a thickness between 40 .mu.m and 180 .mu.m; the cartrigde has a feed passway for sending out the abrasive tape; and a pair of apparatus abrasive tape retainers are attached to the inside of the both ends of the shaft.

Abstract: A synthetic paper with a multi-layer structure comprising a biaxially stretched film of an olefinic polymer having a melting point (the peak temperature of the DSC curve) of from 130.degree. C. to 210.degree. C. containing from 5 to 40% by weight inorganic fine powders having a mean particle size of from 0.01 to 10 .mu.m as a base material layer (A) having adhered to at least one surface thereof a uniaxially stretched layer (B) having a surface roughness of from 0.3 to 1.5 .mu.m, with the uniaxially stretched layer (B) comprising a propylene .alpha.-olefin copolymer or a high-density polyethylene having a melting point (the peak temperature of the DSC curve) of from 120.degree. C. to 160.degree. C. which is at least 5.degree. C. lower than the melting point of the olefinic polymer of the base material layer (A) and from 8 to 65% by weight inorganic fine powders having a mean particle size of from 0.01 to 5 .mu.

Abstract: Compositions and methods for manufacturing sheets having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more inorganic aggregate materials, fibers, and optional admixtures in the correct proportions in order to form a sheet which has the desired performance criteria. The inorganically filled mixtures are formed into sheets by first extruding the mixtures and the passing the extruded materials between a set of rollers. The rolled sheets are dried in an accelerated manner to form a substantially hardened sheet, such as by heated rollers and/or a drying chamber. The inorganically filled sheets may have properties substantially similar to sheets presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. Such sheets can be rolled, pressed, scored, perforated, folded, and glued.

Abstract: A flexible abrasive member comprising a first porous layer of mesh, non-woven or perforated sheet, conductive or non-conductive material to which on one side deposits are deposited by way of any metal plating technique of either the electrolytic, electroless or vacuum deposition type, or any galvanic process, abrasive particles being embedded in the metal deposits, a layer of filling material, such as a resin, being present between the deposits which filling material is bonded to said first porous layer and/or the deposits, and at least a second porous layer of mesh, non-woven or perforated sheet, conductive or non-conductive material being present and being laid substantially along one side of the first porous layer. The side edge of the deposit has at least one annular groove along at least part of the circumference of the deposit.

Abstract: A self-supporting sheet-like structure is described, which contains a substrate layer and a structured coating on at least one surface of the substrate layer. The structured coating is produced by treating at least one surface of the substrate layer by means of an electric corona discharge, which takes place between a high voltage electrode and a grounded counter-electrode. In this procedure, an aerosol containing discrete inert particles is simultaneously introduced into the corona discharge space during the corona discharge to improve the slip characteristics and reduce friction of the substrate layer.

Abstract: The present invention provides an topically appliable active agent impregnated nonwoven pad, and the pad is fabricated from a nonwoven web that contains crimped conjugate fibers of spunbond fibers or staple fibers, wherein the nonwoven web is characterized as having autogenous interfiber bonds at the crossover contact points of its fibers throughout the web. The invention additionally provides a method of cleaning or buffing a solid surface with the nonwoven web.

Abstract: The disclosure describes a non-magnetic undercoating layer for a magnetic recording medium, coated on the surface of a non-magnetic substrate comprising:non-magnetic particles selected from the group consisting of particles (1) and (2):(1) coated acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles which are produced by adhering not less than 0.01 to 20 wt % (calculated as Al, SiO.sub.2 or Al and SiO.sub.2, and based on acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles as a core material) of an oxide or a hydroxide containing Al, Si or both Al and Si to the surfaces of acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles as a core material, and have a molecular weight-dependent parameter .alpha. represented by the following formula of not less than 0.5:As=K.sub.1 .multidot.M.sup..alpha.wherein M represents the number-average molecular weight of a binder resin, As represents the saturation adsorption of said binder resin, and K.sub.

Abstract: The invention relates to water-repellent composite grains. Each composite grain includes: a first grain; and a low molecular weight polytetrafluoroethylene (PTFE) covering the first grain. The first grain is higher than the PTFE in mechanical strength. With this, the composite grains are improved in mechanical strength. A water-repellent article is produced by anchoring the composite grains to a substrate through an adhesive layer formed on the substrate. The composite grains are partly exposed on the adhesive layer and partly submerged in the adhesive layer. With this, the water-repellent article is made minutely rough. The water-repellent article is improved in mechanical strength and water repellency.

Abstract: The present invention relates to commercial and institutional inlaid floorcoverings having a uniform, unpatterned decorative appearance. Colored spheroidal particles having an aspect ratio no greater than about 2:1 are provided in a dense, uniform matrix layer to create the decorative appearance. Flame retardant and smoke suppressant compositions can be incorporated in the floorcoverings without detrimentally affecting their appearance.

Abstract: A coated abrasive article comprising:(a) a backing;(b) at least one layer comprising a plurality of precisely shaped abrasive particles that comprise abrasive grits and a free-radically polymerized binder, wherein said precisely shaped particles have vertexes and(c) a bonding medium which serves to adhere said precisely shaped particles to said backing;wherein the precisely shaped particles are randomly disposed on the backing such that at least a portion of said particles are oriented with said vertexes pointing toward said backing.

Abstract: An exemplary waterproofing membrane comprises a carrier layer having a non-bituminous pressure-sensitive waterproofing adhesive, a protective layer coated on the non-bituminous adhesive, and a second waterproofing adhesive layer on the other face of the carrier to permit adherence of the membrane to a cementious surface and to permit concrete to be cast against the non-bituminous layer and protective coating and to be bonded thereto when cured. Further exemplary membranes comprise a dusted layer on the protective coating to permit foot traffic. The membranes of the invention are useful in so-called horizontal and vertical lagging installations. Methods for waterproofing between cementious surfaces, in tunnels, and on concrete decks are also disclosed.

Abstract: A coatable composition suitable for reducing dust generation during processing of granular materials consists essentially of a tackifier, an organic oil, and an adhesion agent, the tackifier consisting essentially of an organic material having a glass transition temperature of no less than about 120.degree. C. and a diluent present in sufficient amount to give the tackifier a kinematic viscosity ranging from about 3,000 to about 5,000 centistokes at 100.degree. C. The tackifier is preferably present in the composition at about 0.5 to about 2.0 weight percent of the total weight of the composition, and the adhesion agent is preferably present at about 0.5 to about 5.0 weight percent of the total weight of the composition, with the balance being organic oil.

Abstract: Materials, particularly wood materials and calcium carbonate-containing materials such as concrete and marble, can be protected from the growth of algae by being treated with a compound containing tin covalently bonded to a silylating group such that cleavage of the covalent bonds due to hydrolysis or photolysis is minimized, thus making the treatment ecologically safe. One such compound is (n-Bu).sub.3 SnCH.sub.2 CH.sub.2 Si(OEt).sub.3. The tin compound can either be incorporated into raw materials from which materials are to be made, or it can be applied to the finished materials. When the tin compound is applied to a material that is algae streaked, the streaking should disappear.

Abstract: Paper coating pigments comprising mechanically delaminated kaolin particles. The pigments possess the opacification, smoothness and printability advantages of conventional delaminated kaolin pigments but have desirably low viscosity and gloss not characteristic of conventional delaminated kaolin pigments. Crude kaolins of specified physical characteristics for production of these pigments by controlled delamination.

Abstract: A synthetic resin decorative material including an antistatic layer containing an electrically conductive film formed on a surface thereof without changing the color, design and pattern of the decorative material. The synthetic resin may be a synthetic resin decorative sheet/plate. The antistatic function of the antistatic layer is improved such that occurrence of cracks in the antistatic layer can be prevented when the decorative material having the antistatic layer is thermally molded. To prepare the decorative material, a transfer sheet is pressed while being heated onto a surface of a synthetic resin decorative base material including a synthetic resin sheet or plate. To prepare the transfer sheet, electrically conductive paint containing an electrically conductive matter formed by coating inorganic fine powder having a refractive index of 1.4 to 1.7 with an electrically conductive tin oxide is applied onto a 1 to 5 .mu.

Abstract: Particles of a fine powder of a thermoplastic synthetic resin (host powder) having a suitable broad range between its initial glass transition temperature (initial T.sub.g) and its final T.sub.g, are partially coated with an anti-caking coating powder (coating powder) by blending at an elevated temperature to form "mottled" particles. The elevated temperature is defined in relation to the initial and final T.sub.g s as: (initial T.sub.g -20).degree. C. but below the final T.sub.g. Mottled particles, without being encapsulated, have the unique ability to maintain their individual particulate characteristics at a temperature at least 10.degree. C. above the initial T.sub.g of the uncoated host powder, and flow freely under applied pressure. Such pressure is applied by a rolling drum which spreads the mottled particles onto a target bed where they are selectively sintered With a controlled high energy beam, usually a laser beam.

Abstract: A coatable composition suitable for reducing dust generation during processing of granular materials consists essentially of a tackifier, an organic oil, and an adhesion agent, the tackifier consisting essentially of an organic material having a glass transition temperature of no less than about 120.degree. C. and a diluent present in sufficient amount to give the tackifier a kinematic viscosity ranging from about 3,000 to about 5,000 centistokes at 100.degree. C. The tackifier is preferably present in the composition at about 0.5 to about 2.0 weight percent of the total weight of the composition, and the adhesion agent is preferably present at about 0.5 to about 5.0 weight percent of the total weight of the composition, with the balance being organic oil.

Abstract: A water- and oil-repelling adsorbing film formed on a material having active hydrogen such as hydroxyl group, imino group and amino group at the surface. This film is a chemically adsorbed film having surface irregularities exceeding 10 nanometers. It is directly or indirectly covalently bonded to the material surface and includes a monomolecular film or a polymer film with the molecules thereof containing a fluorocarbon group and a --Si-- bond. The surface irregularities which exceed the molecular level are at least either those formed on the material surface itself, those due to particles formed on the substrate surface or those due to particles present in the chemically adsorbed film.

Abstract: Building materials such as concrete can be protected from the growth of algae by being treated with a compound containing tin covalently bonded to a silylating group such that cleavage of the covalent bonds due to hydrolysis or photolysis is minimized, thus making the treatment ecologically safe. One such compound is (n-Bu).sub.3 SnCH.sub.2 CH.sub.2 Si(OEt).sub.3. The tin compound can either be incorporated into raw materials from which building materials are to be made, or it can be applied to the finished building materials. When the tin compound is applied to a building material that is algae streaked, the streaking should disappear.

Abstract: Electrically conductive elements on two substrates can be electrically interconnected by an adhesive tape containing electrically conductive equiax particles that are individually positioned in the adhesive layer in a predetermined pattern. Each particle is harder than the elements it is to interconnect, so that hand pressure causes the particles to penetrate into the elements, thus creating a reliable electrical connection. Particularly useful particles are glass beads having a metallic coating that is from 0.1 to 2 .mu.m thick.

Abstract: For covering the outer surface of a structure, an outer surface structure of a layer of elastomeric material with a sheet of fabric embedded in the elastomeric material includes an outer coating of silica sand to receive a second layer of rigid material bonded and covering the surface structure, such as a gypsum material or plastic material.

Abstract: Roofing granules having surfaces treated with an oil and an elastomeric rubber. The elastomeric rubber can be an organic block copolymer having elastomeric and nonelastomeric repeating units. The oil and rubber are applied to the roofing granules' surfaces as a thin film. The thin film of oil and rubber impedes granule staining from oils in asphalt roofing materials, and reduces dust formation during granule handling. Also disclosed is a roofing shingle and a process for making the roofing granule composition.

Abstract: A slippery orthopedic cast tape produced by depositing onto a substrate a layer of microencapsulated lubricating or friction-reducing material. The substrate is impregnated with a material which is hardenable upon exposure to an activating agent. The coating of each one of the microgranules is formed of a material which is removable upon the application thereto of a removing stimulus. The microencapsulated lubricious material is applied to the inner end of a rolled cast tape so that it will be adjacent the outer layers of a formed cast. In one embodiment, the microgranules are formed of a water-insoluble polymeric coating over a polyethoxylated surfactant which serves as the lubricious material, the polymeric coating being rupturable upon the application of pressure in order to release the lubricious material.

Abstract: Fine quartzite particles with a colored ceramic coating are used for surfacing roofing membranes to enable easier lapping of the roofing membranes while still maintaining necessary UV and heat protection. The roofing membranes may include modified and unmodified bitumen compositions that may be applied to roofing surfaces using heat welding, hot asphalt, cold adhesive, self adhesion and the like.

Abstract: A phosphor comprising phosphor particles and a surface treating material attached or coated on the phosphor particles, wherein said surface treating material comprises zinc and a polycarboxylic acid.

Abstract: Paper coating pigments comprising mechanically delaminated kaolin particles. The pigments possess the opacification, smoothness and printability advantages of conventional delaminated kaolin pigments but have desirably low viscosity and gloss not characteristic of conventional delaminated kaolin pigments.

Abstract: A method of making a shaped thermoplastic article includes the following steps: mixing plastic filler particles of a maximum size of 0.7 mm to a thermoplastic material in a maximum percentage of about 15 weight percent for affecting a surface roughness of the article; processing the mixture resulting from the mixing step to obtain the shaped thermoplastic article; and maintaining the temperature of the mixture during the performance of the mixing and processing steps at a level below the melting temperature of the plastic filler particles.

Abstract: An anti-skid coating composition for coating various substrates including structural panel board surfaces, comprises a binder made of urea formaldehyde resin, polyvinyl acetate, ammonium chloride and a dispersant. The binder is used in conjunction with an aggregate, such as walnut shells. A method is also provided for coating the substrates to impart slip resistance thereto.

Abstract: A transfer recording medium comprising a substrate and a plurality of image forming elements bonded thereto by a binder is provided. The surface of each image forming element at least partially protrudes out of the binder. Such transfer recording medium may be prepared by applying the binder onto the substrate in a prescribed thickness, disposing the image forming elements in excess on the binder, and then removing the excess of the image forming elements. The thus prepared transfer recording medium provides an image having a high density and a faithfully reproducible color.

Abstract: A coated abrasive article comprising a backing bearing on one major surface thereof a layer of abrasive grains overcoated with a loading resistant coating and on the other major surface thereof a layer of pressure-sensitive adhesive. The loading resistant coating comprises a lithium salt of a fatty acid. It may also contain additives selected from the group consisting of surfactants, wetting agents, binders, anti-foaming agents, fillers, plasticizers, and mixtures thereof. The use of a lithium salt of a fatty acid significantly reduces the amount of transfer between the loading resistant coating of a first coated abrasive article and the pressure-sensitive adhesive layer of a second coated abrasive article disposed within a package.

Abstract: A cooking utensil having an enamel coating of a first enamel layer (7) covered in the zone of the bottom (1) of the utensil with a second enamel layer (3) which is in turn covered with a non-continuous third enamel layer (4) constituting a decoration and applied by screen process after drying of the first layer, these three layers (7, 3, 4) being obtained from an enamel frit and being fired simultaneously.The two enamel layers (3, 4) contain glass beads (5, 6), at least a certain number of which have a diameter of greater value than the thickness of these enamel layers and project from the surface of the layers, a certain number of beads (6) of the non-continuous third layer (4) being applied on beads (5) of the second layer (3). The second layer also contains heat-conducting flakes.The enamel coating offers enhanced resistance to wear and high thermal conductivity.

Abstract: A water deflector or shield device particularly suited for use on the inner panel of a vehicle door comprises a water impervious thin, flexible plastic sheet having a peripheral configuration matching the peripheral configuration of a portion of the panel. The sheet is provided with a sealing arrangement to permit electrical wires or the like to pass through the sheet in sealed relationship thereto. The sealing arrangement includes a laterally extending pocket in the sheet at a predetermined point corresponding to the point through which it is desired to extend the wire. A hole is formed at the bottom of the pocket and the interior of the pocket has an adhesive therin. After the wire is passed through the hole, the interior of the pocket is sealingly adhered to the wire.

Abstract: Tack-free silicone gel moldings and methods of making such moldings are prepared by coating tacky silicone gel moldings with a silicone rubber particles, having an average diameter less than about 1 mm.

Abstract: Decorative laminate having improved resistance against marring, abrasion, staining and crocking, and method for the preparation thereof, the laminate comprising a substrate and a decorative sheet, the decorative sheet having on the exposed surface a layer consisting essentially of a thermoset resin, substantially fully hydrolyzed polyvinyl alcohol, fumed amorphous silica, and particulate abrasive material having a hardness higher than that of silica. Abrasion resistance greater than 3000 cycles (NEMA Wear) by the NEMA test LD 3-3.01 is obtained in combination with improved mar resistance.

Abstract: Tape products for diverse end users are obtained by applying to a sheet backing a layer of normally tacky and pressure-sensitive adhesive (PSA) containing and completely surrounding resilient non-tacky hollow thermoplastic polymeric microspheres. When the PSA is permanently bonded to the backing and the exposed surface has an irregular contour, a removable and repositionable product results. When the PSA forms a continuous matrix that is strippably bonded to the backing and is 1 mm or more thick, the resultant product is a foamlike transfer tape or foam tape. Depending on the product, the PSA can contain from about 1/5 to about 2/3% of the microspheres by volume.

Abstract: In the fabrication of various hybrid devices, it is the practice to provide thick film conductors of two different compositions, namely, a high palladium content silver-palladium film and an essentially pure silver film. The silver-palladium films are used because of their excellent physical and chemical properties, but are relatively expensive. The silver-based films do not have comparably good properties (with the exception of low electrical resistivity), but are less expensive than the silver-palladium films and are used in substitution therefore on less "demanding" areas of the device. However, the two films interact when in contact, and discontinuities or open circuits can occur as a result. The present invention provides a novel silver-based conductor film including a small percentage of palladium and one or both of aluminum oxide and silicon dioxide.

Abstract: A thermal transfer sheet comprising a heat resistive base, a thermally transferable ink layer on one side of the base, and auxiliary particles distributed in the layer so that they partially emerge from the surface of the layer to present an irregular surface. The transferable ink layer comprises a mixture of a coloring agent and a hot melt binder, the mixture being transferable to a writing surface in response to application of heat to the other side of the base to provide continuous tone rendition.

Abstract: Lightning protection apparatus for an exterior structural surface includes an electrically insulating protective coating adhered to the exterior surface, and a plurality of conductive particles supported in the coating. The particles are spaced at distances greater than the dimension of the particles in a direction parallel to the surface. The dielectric strength of the coating is thereby weakened by bridging the thickness of the coating with the particles. This enables lightning attachment to occur at a multiplicity of points rather than at one point, thereby reducing interior sparking in an aircraft and minimizing structual damage to the surface of the aircraft.

Abstract: Containers such as syringes can be coated on their interior surface with biologicals such as heparin by atomizing the biological inside the container and reducing the pressure within the container for a period of time sufficient to allow the atomized biological to "auto-freeze" dry.

Abstract: The dye transfer type thermal printing sheet and method for printing of this invention are a printing sheet comprising a transfer sheet in which a smooth heat-resistant layer composed of fine particles, a liquid lubricating material and a polymer is formed on one side of a substrate, and on the other side is formed a coloring material layer containing at least one sublimable dye, non-sublimable particles and a binder, a part of said non-sublimable particles jutting out from the reference surface of the sublimable dye layer; and an image-receiving sheet having, on a substrate for image-receiving sheet, a development layer composed of, at least, inorganic fine particles; a binder having dye-affinity and another binder immiscible with said binder; and a dye transfer type thermal method for printing which comprises placing the aforesaid coloring material layer and development layer of the above-mentioned printing sheet face to face with each other, heating the printing sheet selectively from the smooth heat-resis

Abstract: A sprayable matting lacquer is preferably applied to a transparent or translucent polymeric base film to provide the composite film with desired non-streaking matte properties so that such film becomes suitable for use by artists and the like. The matting lacquer includes a plastic resin film-forming agent, a soft matting agent formed of discrete uniformly spherical, smooth-surfaced polyolefin, preferably polyethylene particles having an average diameter not in excess of about 40 microns and perferably 10-40 microns and in a ratio of 1-3:3-1 to the resin, a relatively hard matting agent composed of particles of silica, calcium cabonate or the like, in a concentration of about 10% that of the soft matting agent, an organic solvent for the film-former and a plasticizer. The aqueous paint which is utilizable on the matter film includes the described soft matting agent, a resinous film-forming binder and dispersing agent, as well as a transparent coloring agent.

Abstract: A flexible, low mass coated abrasive sheet material magnetically held on a support surface of a magnetized pad providing more than 6 magnetic poles per inch in one direction along the support surface. The coated abrasive sheet material incorporates sufficient ferromagnetic material that only the force of magnetic attraction between the magnetized pad and the ferromagnetic material and any force applied to the sheet material through the magnetized pad normal to the support surface will produce sufficient static friction between the support surface and the coated abrasive sheet material to retain the abrasive coated sheet material on the support surface while it is driven by the magnetized pad to abrade a workpiece.

Abstract: An ink-jet recording medium is characterized in that the recording surface thereof is formed of a mixture of at least a filler and parts of a fibrous base material and that parts of the fiber composing the fibrous base material are laid very closely to the recording surface.