Abstract:
A method of using a penetrating protective sealer to mark a message onto a porous surface is provided. Once the sealer has been applied to the surface and is allowed to dry, the message will not be visible. An indicator dye can be used to aid in application of the sealer; once the sealer has fully cured, the indicator dye is no longer visible. When the marked surface becomes wet, the portion of the surface that has been treated by the sealer will repel water; the remainder of the surface will absorb water and turn dark. The contrast in color created between the darker, untreated/wet, surface and the lighter, treated/dry, surface will result in a visible message to an observer. The message can be a warning or an advertisement. A thickened penetrating sealer composition and a method of using the same is provided. The thickened sealer results in neat, clean, crisp edges for the message.
Abstract:
The invention relates to a method for protecting and marking products by using microparticles, which are to be attached or added to the product, each microparticle having several color layers forming a code, wherein for each individual product two or more differently coded microparticle groups are used, with the first microparticle group containing in its code the same information for a plurality of products, and with the second or subsequent microparticle group containing in its code an information which is individual for each individual product or for few products. The method provides that the second microparticle group is formed by microparticles describing the unit place and the tens place of a decimal number; an optionally provided third microparticle group is formed by microparticles describing the hundreds place and the thousands place of a decimal number; an optionally provided fourth microparticle group is formed by microparticles describing the ten thousands place and the hundred thousands place of a decimal number; and the microparticles of each microparticle group have at least one own and distinct group marking color layer.
Abstract:
The present invention is therefore directed to a method and apparatus for warming a stack of cheese slices. In accordance with the invention, the stack of cheese slices is positioned between and in juxtaposition with opposing generally planar electrodes, each of the electrodes having a surface area generally coextensive with that of the cheese stack. Next, a conductive material is interposed between each electrode and the cheese stack to reduce contact resistance. Once properly assembled, an electric current is passed between the electrodes, through both the conductive material and the cheese, thus warming the individual cheese slices through ohmic heating. In accordance with one embodiment of the invention, the conductive material is a moistened paper sheet.
Abstract:
A dispensing system and method for dispensing material onto a substrate. The dispensing system includes a frame, a support, coupled to the frame, that supports the substrate at a dispensing position in the dispensing system, and a dispensing head, coupled to the frame, that dispenses the material onto the substrate. The dispensing head includes a motor unit having a first motor coupled to an output drive mechanism, and a dispensing unit, removably coupled to the motor unit, having a material outlet from which the dispensing material is dispensed, the dispensing unit having a dispensing mechanism coupled to the material outlet and coupled to the output drive mechanism of the motor unit such that operation of the first motor causes the dispensing mechanism to dispense material through the outlet.
Abstract:
A paint injector for digital printing in which paint is deposited in metered amounts on a print medium comprises a wheel rotatable by a shaft of a motor, an idler disposed in a paint reservoir, and an endless cable disposed around the wheel and the idler. The motor is preferably computer controlled such that the rotation of the wheel and thus movement of the cable is selectively controlled. As the wheel is rotated, paint contained within the paint reservoir coats the cable and is thus drawn by the cable in front of an air stream. The air stream pulls the paint from the cable and carries it toward the print medium. By employing a plurality of such paint injectors into a single print head, each containing a different color of paint, and secured to a computer controlled, movable carriage positioned over the print medium, a digital image can be painted by the print head on the print medium.
Abstract:
A method for improving the dirt pick-up resistance and the retention of gloss on exposure to light of a dried coating formed from a coalescent-free aqueous coating composition is provided. The coalescent-free composition composition contains an aqueous emulsion-polymerized polymeric binder having a glass transition temperature from about −35 C. to about +25 C. with from about 2% to about 20%, by weight based on the weight of the polymeric binder, of at least one copolymerized ethylenically-unsaturated active methylene monomer.
Abstract:
A global positioning system (GPS) controlled paint spray system. The system includes a paint sprayer driver program and a GPS paint sprayer. The paint sprayer driver program enables a user of a standard drawing program using a standard personal computer to generate a print file for a drawing pattern. The GPS paint sprayer includes a GPS receiver, a geographical converter for enabling a user to convert the drawing pattern to geographical locations, a location comparator for detecting a location match between the geographical locations of the drawing pattern and a current GPS-based location, and a spray nozzle to spraying paint for matched locations.
Abstract:
A porous ceramic film having micropores of uniform diameter is formed on a substrate by depositing on the substrate a layer of a ceramic sol containing polyethylene glycol or polyethylene oxide and then heating the substrate. This porous ceramic film is used as a catalyst or catalyst support. When the ceramic of this film is titanium oxide, the film is particularly useful as a photocatalyst for the decomposition of harmful and malodorous substances.
Abstract:
An open-pored body (11), in particular a carbon component of an aluminum production cell, which is to be exposed to oxidizing conditions or chemical attack at high temperatures is treated to protect the body against oxidation or corrosion at high temperature by impregnating the surface of the body at about ambient temperature with a hot non-saturated liquid (10). This liquid contains a treating agent at a temperature above the temperature of the body. The concentration of treating agent in the hot liquid is such that when the liquid is cooled, before it reaches the temperature of the body, the liquid saturates and treating agent precipitates. A pressure differential is applied to cause the liquid to impregnate into the surface pores of the body (11) and precipitate a layer of the treating agent from the liquid inside the body by cooling as it impregnates the pores of the body. The treating solution preferably comprises soluble boron compounds and, when the body is exposed to high temperature oxidizing conditions, the precipitated layer of the treating agent inside the body forms a protective, vitreous layer in the surface pores which protects the body against oxidation.
Abstract:
This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain alkylated aminoether compounds of the structure R—HN(CH2)p[O(CH2)n]mO(CH2)qNH—R′ where n is 2-6, m is 0-4, and p and q are 2-6, and R and R′ independently are an alkyl group comprising 5 to 18 carbons, preferably which is branched or in which the point of attachment to nitrogen is on a nonterminal carbon.