Abstract: A weather resistant sign and a method of printing a sign including the steps of providing a sign component and an image definition, applying dry toner powder to surface portions corresponding to the image definition, and fusing the applied toner. Preferably, the fused toner is protected from weather by a transparent protective layer. A toner composition and a computer program for printing are also disclosed.

Abstract: A diesel particulate trap has a filtering element which is a mass of fibrous filter material that radially fills a tubular casing. The filtering element employs lofty yarn extending in straight lines in a repeating pattern, which lines of lofty yarn have been compacted to form a plurality of fibrous walls that intersect to form tunnels extending in the axial or longitudinal direction of the casing. Some of the tunnels are filled with plugs that afford structural integrity while others of the tunnels remain open. The ends of the filtering element are covered by endplates. Substantially one-half of the open tunnels are axially aligned with openings in the inlet endplate and with imperforate areas in the outlet endplate, and the other open tunnels are axially aligned with openings in the outlet endplate and with imperforate areas in the inlet endplate. Exhaust gases entering tunnels open to the inlet pass through the compact fibrous walls and exit through tunnels open to the outlet.

Abstract: A fabric for filtering particulate matter from a stream of hot gases, e.g., from a diesel engine, has an unknotted weave of flexible, incompressible, uncrimped, spaced support yarns and flexible, lofty, fully crimped, fill yarns. During the weaving process, the fill yarns are pulled tightly against the support yarns so that they do not slip or shift. For greater assurance of good filtering, a filter employs multiple layers of the fabric, with the support yarns of each layer extending orthogonally to those of adjacent layers. For uses involving prolonged exposure to high temperature, both the support yarns and fill yarns can be continuous-filament ceramic yarns such as alumina-boria-silica yarns. For lower temperatures, the yarns can be primarily glass.

Abstract: An efficient, economical, compact diesel particulate filter comprising a casing radially filled with a bundle of tubes comprising woven, braided, or knitted inorganic yarn, wherein each tube is at least about twice the length of the bundle, and is folded at one end to prevent exhaust from traveling through the hollow of the tube without passing through its wall.

Abstract: An efficient, economical, compact diesel particulate filter comprising a casing with a plurality of concentric, spaced, perforated, supported, substantially rigid tubes substantially filling the casing radially, wherein the perforated surface of each tube is covered by a filtering element comprising substantially helically wound inorganic yarn, wherein each space between tubes is blocked at only one end of the tubes so that exhaust entering an unblocked space at one end of the casing passes radially inwardly and outwardly through filtering elements before exiting through an unblocked space at the other end of the casing.

Abstract: Pressure-sensitive adhesive tape having low adhesion backsizes and release coatings that can be written on with solvent and water-based inks, the indicia remaining firmly bonded and resisting smearing. The coatings comprise copolymers of (A) free radically polymerizable vinyl monomer, (B) polar monomer in sufficient amount to impart a hydrated Tg of -15.degree. C. to 35.degree. C. and a difference of at least 20.degree. C. between the hydrated and actual Tgs, and (C) siloxane-based polymer of a type and in an amount that will impart a satisfactory release value.

Abstract: A gelling agent for hydrophobic organic liquids, such as mineral oil, comprising the reaction product of an organic poly-oxo-aluminum salt of a fatty acid and an organic reactant, particularly reactants having hydroxyl or carboxyl groups, in solid form. Preferably, the agent also contains an agent for reducing the settling or agglomeration of the gelling agent, such as particulate silicic acid or caoutchouc.

Abstract: A clean room enclosure comprising wall panels joined together by trim members to support studs, the studs and trim members being slotted to contain a plurality of flexible sealing members therein and means to operatively attach the trim members to the studs in a manner that all sealing members are engaged to prevent passage of air therethrough.

Abstract: A method for sealing the interstices between individual cables of a cable bundle to achieve the sealing of the cable bundle in the longitudinal direction applying a liquid resin system to the area between the cables, the system comprising the reaction of a polyisocyanate and at least one fatty acid polyol having a hydroxy number of at least about 150 and an acid number of no greater than about 1.0, followed by curing thereof to a non-flowable state.

Abstract: Defects in the glass lining of a production-size reactor can be conveniently and inexpensively repaired by (a) applying a thin primer that contains a silane coupling agent, (b) applying a dental composite, and (c) then curing the resin of the composite. This strongly bonds the dental composite to the glass and, when the defect extends to the metal jacket of the reactor, also strongly bonds the composite to the metal. Preferably prior to step (b), the primer is covered by a light-curable adhesive that can covalently bond both to the silane coupling agent of the primer and to the resin of the dental composite. By patching the glass lining in this way, there is little danger of fire or explosion or hazard to the health of the person who applies the patch, and reactor down-time is significantly reduced compared to prior patching methods.

Abstract: A cylindrical sleeve of non-woven web material comprised of partially hydrolyzed acrylic fibers useful as a dampener roll cover in lithographic printing is provided. The sleeve has excellent strength as well as improved water absorption. Methods of preparing the sleeve and of using the sleeve in lithographic printing are also provided.

Abstract: A carbonless copy paper for imaging via electrostatic copiers comprising a paper stock having a basis weight greater than about 18 pounds per ream and containing on at least a portion of a surface thereof a stilt particle-free composition comprising microcapsules, at least 50 volume percent thereof having a size no greater than about 12 microns and at least 95 percent by volume thereof having a size no greater than about 18 microns.

Abstract: Hot-tackifying adhesive tape, the adhesive layer of which is an acrylic polymer which is nontacky or poorly tacky at ordinary room temperature, but at any temperature over a wide range of elevated temperatures, it becomes tacky and adheres upon contact to clean substrates without the application of significant pressure. Good bonds are immediately formed at a tackifying temperature without the necessity of crosslinking or other chemical reactions.

Abstract: A graphic composite having a heat detackifiable adhesive, the composite comprising a carrier film; a graphic design adhered to the top surface of the carrier film; a protective coating lying over the graphic design; a heat detackifiable premask adhesive layer overlying the protective coating; and a premask carrier web adhered to the premask adhesive layer.

Abstract: An end portion for a container having a preformed opening therein and an easy-open closure system therefor, the closure system comprising an exterior tape over the opening which is manually removable, the tape being adhered by an adhesive which comprises the reaction mixture of an aryl isocyanate, an aliphatic glycol, and a defined mixture of hydroxy terminated polyesters.

Abstract: A wood-burning stove comprising a body providing a primary combustion chamber and a secondary combustion chamber, primary air supply means to supply preheated air at lower and intermediate levels of the primary chamber, secondary air supply means to supply preheated air to the secondary chamber, and temperature actuated control means to regulate the supply of primary combustion air based on the temperature of flue gases entering the secondary combustion chamber.

Abstract: A dry transfer article comprising an adhesive layer, a graphic pattern contained thereon, an actinic radiation-transmissive, ink-receptive layer between the adhesive layer and the graphic layer, and an application tape over the graphic pattern. The adhesive layer comprises an actinic radiation-responsive composition. Exposure of the article to actinic radiation selectively differentiates the adhesive potential between those portions of the adhesive layer underlying the graphic pattern and the exposed portions of the adhesive layer. After application of the article to a substrate, removal of the application tape causes selective removal of unwanted areas leaving desired graphic pattern on the substrate, i.e., the transfer article if self-weeding.

Abstract: A process for the preparation of infusible, solvent-insoluble, solvent-dispersible, inherently tacky elastomeric polymeric microspheres without the use of a suspension stabilizer comprising the steps of: (a) charging to a reaction vessel: (1) at least one alkyl acrylate or methacrylate ester monomer; (2) at least one emulsifier at a concentration above its critical micelle concentration; and (3) an effective amount of at least one substantially water insoluble polymerization initiator; (b) agitating the reaction vessel charge prior to the initiation of the reaction sufficient to create a suitable monomer/water emulsion in the reaction vessel; and (c) maintaining the agitation for a time sufficient to allow substantially complete conversion of the monomer. This process forms elastomeric, solvet-dispersible, polymeric micropheres.

Abstract: An adhesive composition which is particularly suitable for use as a die-attach adhesive. The adhesive composition comprises the reaction product of an admixture of an effective amount of a phenoxy resin, at least one epoxy resin and a fluorene curative.

Abstract: A graphic design article comprising a carrier, a first adhesive layer on the carrier, a graphic design on portions of the first adhesive layer, and a second adhesive layer on the graphic design and first adhesive layer.