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| Cubic boron nitride preparation |
| AND BEST MODE The invention provides for deposition of cubic boron nitride on a substrate through ... |
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| Cubic boron nitride preparation |
| OF THE INVENTION The invention involves the deposition of CBN on a substrate through activated ... |
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| Method of producing thin, hard coating |
| An object of this invention is the provision of a hard, tenacious, anti-galling and corrosion-... |
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| Process for production of high-hardness boron nitride film |
| Proceeding from the above-mentioned background, research was performed, and as a result, it was ... |
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| Method of making mixed nitride films with at least two metals |
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| Hot filament CVD of boron nitride films |
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| Process for depositing a layer containing boron and nitrogen |
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| Process for the preparation of an optical structure and optical structure obtained thereby |
| We claim: 1. A process for producing an optical structure comprising a silicon-based coating on an ... |
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Method for producing coated wood-based panels with rounded edges and panels obtained thereby
| Details |
Inventors: Frati, Dante;
Assignee: Bipan S.p.A. (Bicinicco Udine, IT)
Primary Examiner: Ryan; Patrick
Assistant Examiner: Bahta; Abraham
Attorney, Agent or Firm: Steinberg, Raskin & Davidson P.C.
A method for producing coated wood-based panels with rounded edge from a starting panel coated on at least one of its two sides, and which is subjected to a preforming or direct postforming process. The starting panel is coated using coatings based on unsaturated resins of the type curable by ionizing radiation. |
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DETAILED DESCRIPTION Accordingly, it is an object of the present invention to overcome the prior art problems by providing a method for industrially producing coated rounded-edge or curved-end panels.
A further object of the present invention is to obtain a coated panel of the type starting with a standard coated panel, i.
e.
, coated only on its two faces.
These objects are attained by a method for producing coated wood-based panels with rounded edges according to the present invention, in which the starting panel, coated on at least one of its two sides, is subjected to a preforming or direct postforming process, characterized in that the starting panel is coated using coatings based on unsaturated resins of the type curable by ionizing radiation (a curing method known as electron beam curing, EBC).
In this respect, it has been surprisingly found that this type of coating enables a film to be obtained which is easily bendable at the working temperature of the preforming or direct postforming machines, this film preserving on termination of the method the desired mechanical resistance to rubbing, chemical resistance to deterioration with time, and the aesthetic quality of invariability of the initial color.
Conveniently, the unsaturated resin-based coatings are of the acrylic and/or methacrylic and/or vinyl type, which enable a sufficiently high degree of cross-linking to be obtained to ensure resistance to chemical attack, in accordance with the standards of the furniture panel sector.
They must at the same time maintain film flexibility, in addition to not undergoing curing inhibition by those organic and inorganic components present in the coating which are used as dies or solid fillers.
These coatings are moreover free from inert solvents.
Three examples of unsaturated resins of the aforesaid type are given, these examples having been proven to be particularly convenient in implementing the method of the present invention: 1.
Unsaturated polyester resins dissolved in vinyl or acrylic monomers
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Manufacturing Materials 
