Abstract:
Provided herein is a method of curing a waterborne coating comprising: (1) preparing a waterborne coating comprising: (a) at least one photoinitiator and (b) at least one pigment, wherein the pigment volume concentration of the waterborne coating is 2.0% to 68.7%; (2) curing the waterborne coating using UV radiation; and (3) curing the waterborne coating using EB. The method may further comprise the step of drying the waterborne coating prior to curing the waterborne coating using UV radiation. Also described is a waterborne coating prepared from the method described herein and an article to which the waterborne coating is applied.
Abstract:
An improved inside of can curing technology is provided. One implementation uses narrowband, semiconductor produced infrared energy which is focused into the inside of the can to affect a very high-speed curing result and will directly impact the coating covering the inside walls of the can to rapidly cure the coating. Detempering and annealing of the aluminum can body does not have time to occur, thus leaving a stronger can with the same amount of aluminum or a can of the same strength but with less aluminum. It is also possible to eliminate the natural gas fueled oven that is the current standard and replace it with a completely hydrocarbon-free curing alternative that has superior performance. This high powered radiant, narrowband energy will be digitally controlled to introduce only the needed heat and to not overheat the can.
Abstract:
The present invention has to do with an efficient system for coating and curing engineered wood products (EWP) in general, and the edges of EWPs in particular. An efficient system for coating and curing coatings is provided.
Abstract:
Provided herein is a portable apparatus for controlled venting and curing operations on coating materials through combination of infrared radiation with cold and/or hot turbulent airflows for the purpose of setting optimum conditions during the venting and curing of coating materials in repair coatings.
Abstract:
The present invention has to do with an efficient system for coating and caring engineered wood products (EWP) in general, and the edges of EWPs in particular. An efficient system for coating and curing coatings is provided.
Abstract:
A process for the coating a substrate with a microporous layer includes at least incorporation by mixing of at least one physical and/or chemical blowing agent into an elastomer mixture, shaping of the elastomer mixture including the physical and/or chemical blowing agent by means of a calender or of a roller-head system, and application of the calendered elastomer mixture including the physical and/or chemical blowing agent to a substrate to be coated. Further, heating and blowing of the coating including the physical and/or chemical blowing agent is then provided by means of at least one heat source. In some cases, the blowing agent is composed of microspheres, which in some embodiments, may be present in non-expanded form. In some aspects, the heating and blowing of the coating directly follows the application procedure. The heat source may be an infrared source, such as a ceramic source.
Abstract:
The invention relates to a process for preparing an aqueous dispersion of a polymer P, which comprises the emulsion polymerization of vinyl acetate, an acrylate monomer, which is a C1-C10 alkyl acrylate or a C1-C10 methacrylate, an α,β-ethylenically unsaturated C3-C8 carboxylic acid, glycidyl methacrylate or glycidyl acrylate, optionally an ethylenically unsaturated sulfonic acid and optionally an ethylenically unsaturated other monomer. Furthermore, the aqueous polymer dispersion obtainable from this process and a powder form thereof are disclosed. They are useful for a paper coating slip containing one of the aforementioned forms. A paper or a cardboard, which is coated with the paper coating slip, shows surface strength, which is expressed by a good dry pick resistance, a good wet pick resistance or good offset test results. The aqueous polymer dispersion or the powder form thereof is furthermore useful as a binder.
Abstract:
A method and an arrangement are disclosed for producing an electrically conductive pattern on a surface. Electrically conductive solid particles are transferred onto an area of predetermined form on a surface of a substrate. The electrically conductive solid particles are heated to a temperature that is higher than a characteristic melting point of the electrically conductive solid particles, thus creating a melt. The melt is pressed against the substrate in a nip, wherein a surface temperature of a portion of the nip that comes against the melt is lower than said characteristic melting point.
Abstract:
A device for surface treatment of an object on a workstation surface has a support frame movable in relation to the object and a number of irradiation elements and a control unit for controlling the irradiation. The support frame is movable in at least one direction along the object, surrounds the object on at least two sides, and includes two substantially parallel side sections and an upper section connected with at least one of the side sections. The object is disposed between the side sections and under the upper section. Each side section includes at least one movable, adjustable panel. On the upper section, a movable panel having irradiation elements is arranged. Some of the panels have infrared and ultraviolet sources. Sensor elements sense the position of the object, and are connected with the control unit, which can control position and/or angular setting of the panels and/or irradiation elements.
Abstract:
An infrared pulse radiation heating method for curing board surface powder comprises melting and curing sequentially performed. The curing is to make a board, with a film formed by quickly melting a power coating, pass through a medium wave infrared pulse radiation area to be heated, the heating is performed alternatively at a high temperature and a low temperature, the medium wave infrared pulse radiation area is formed by separate medium wave infrared pulse radiation heating units consecutively arranged, and medium wave infrared heating tubes in the medium wave infrared pulse radiation area are vertically arranged. Further provided is a device for implementing the heating method. By means of the method and the device, thermal damage is prevented from being incurred to the board, the coated film is uniformly cured, and the energy-conserving effect is improved.