Abstract:
The present invention provides UV curable coating powders comprising a blend of one or more than one free radical curable resin and one or more than one cationic curable resin, at least one free radical photoinitiator and at least one cationic photoinitiator, including suitable cross-linking agents and additives to enhance the chemical and physical properties of the coating appearance. The coating powder, preferably finely ground to between 5 and 30 microns in average particle size, is applied to a substrate, heat fused, and cured for an amount of time sufficient to form a powder coating having a low gloss finish.
Abstract:
Apparatus (1) and process for treating particulate material or powder (33) of a size capable of being fluidized in a retort (31) mounted for rotation on a pair of end axles (18, 41). Retort (31) is mounted on a tilt frame (5) for tilting movement in a vertical plane. Gas conduits (18A, 18B) are mounted within an axle (18) for the supply and exhaust of gas for retort (31). A conduit (55) mounted within the other axle (41) permits particulate material to be passed into or out of the retort (31) as shown in FIG. 1B. A removable injection assembly (90, FIG. 10) is utilized for the injection of additional particulate material. A removable sampling assembly (95, FIG. 11) is utilized for removing a sample of the particulate material from the retort (31). As the retort (31) is rotated, particles of the particulate material are constantly intermingled with each other and the walls of the retort (31). Microwave energy as shown in FIGS. 13-14 may be utilized to heat or dry materials within the retort (31). A plenum (105H) and a permeable membrane (105R) may be provided in an end wall (105B) of a retort (105A) as shown in FIG. 17.
Abstract:
A method for depositing a substance on a substrate that involves forming a supercritical fluid solution of at least one supercritical fluid solvent and at least one solute, discharging the supercritical fluid solution through an orifice under conditions sufficient to form solid particles of the solute that are substantially free of the supercritical fluid solvent, and electrostatically depositing the solid solute particles onto the substrate. The solid solute particles may be charged to a first electric potential and then deposited onto the substrate to form a film. The solute particles may have a mean particle size of less than 1 micron.
Abstract:
An oxidation-sensitive composite has applied thereto a composition comprising a mixture of boride powder constituted for the most part of TiB2, at least one vitreous refractory oxide powder constituted for the most part by a mixture of borosilicate glass, and a binder containing a ceramic-precursor resin. The resin is cured and is subsequently transformed into a ceramic by heat treatment or during first exposure of the coated part to high temperatures.
Abstract:
A method for applying fibrous cellulose insulation to a substrate such as a wall, ceiling, attic part or floor which includes, in at least certain embodiments, mixing cellulose fibers with an adhesive and a discoloration reducing additive and applying the resulting mixture to the substrate.
Abstract:
An abrasive coating and a process for forming the abrasive coating by co-depositing hard particles within a matrix material onto a substrate using a cold spray process. The cold sprayed combination of hard particles and matrix material provides a coating that is wear, erosion and oxidation resistant. The abrasive coating may have different compositions across its depth. The hard particles may be deposited at different densities across the thickness of the matrix material. A first layer of the abrasive coating proximate the surface of the substrate may be devoid of hard particles.
Abstract:
A process for marking a glass body (14), by depositing directly onto the outer surface of the glass body (14), in a form representing the motif of the mark, a marking product (10) made from a substantially homogenous mixture of an ink and a silica powder, and heating the glass body (14) at a temperature sufficient to result in vitrification of the marking product (10).
Abstract:
Tanned leather is dry dressed by plasma deposition at atmospheric pressure of a matrix material such as ITO, a silicone, or polyurethane, upon the protein fibers of the surface of the leather and the collagen fiber skeleton below the surface protein fibers. The leather retains its toughness, elasticity, breathability and softness or hand.
Abstract:
A stand-off device for tubulars comprising a sleeve adapted to fit around a tubular, the sleeve comprising an outer surface and a plurality of blades extending along the outer surface of the sleeve, the blades comprising a bearing surface, wherein the bearing surface of each blade is curved longitudinally. The device may be metallic or non-metallic. Non-metallic devices further comprise a protective coating to inhibit abrasion, corrosion, sparking, and electrolysis. The stand-off device is particularly suitable for use with casing in deviated wellbores.
Abstract:
A textured coating and method of applying same. The coating comprises a high-solids polyamide epoxy having a resin and a hardener, and the epoxy is mixed with a texture aggregate filler being selected from the group consisting of perlite, glass microballoons, glass bubbles, phenolic microballoons, Q cel microspheres, and extendospheres, with the filler preferably being expanded perlite of a size such that about 20% maximum by weight is retained on a U.S. Std. Sieve No. 50 and such that about 65% maximum by weight is retained on a U.S. Std. Sieve No. 100. The epoxy and the filler are mixed in about equal volume. The method has the steps of: combining the resin and hardener to create the epoxy, then waiting a sweat-in time for the epoxy, then adding and blending the filler to the epoxy then adding thinner to the blended filler and epoxy to create a mixture of sprayable viscosity; then gently blending the mixture; and then spraying said blended filler and epoxy onto a surface using a spray gun, and then allowing the epoxy coating to cure.