Abstract:
The present invention provides a method for preparing a slip-resistant surface on an engineered wood product. The method includes the steps of (i) providing an engineered wood product (panel), (ii) applying a slip-resistant surface coating system, which includes a liquid radiation-curable coating composition and a texturing agent, to at least a portion of at least one surface of the wood product (panel); and (iii) curing the composition. In a preferred embodiment the coating composition is substantially free of solvent and radiation-curable. The coating composition may be applied in one or more layers, and the coating composition is in the form of a UV-curable coating composition.
Abstract:
This invention provides methods for preparing mixtures of styrene and maleic anhydride co-monomer, applying that mixture to the surface of a solid porous substance like wood, allowing the mixture to penetrate the surface zone of the material such as wood and causing it to quickly cure in the surface zone of the material. The keys are the low viscosity of the mixture that causes it to penetrate quickly and well, and its reactivity that causes it to cure before it either evaporates or becomes too dispersed within the material. The polymer reinforcement and hardening is therefore effectively restricted to the surface zone or shell. This produces a reinforced, hardened, protective shell around the porous material.
Abstract:
A coated veneered article has at least one visible wood veneer layer coated with a multilayer finishing system comprising a coating layer nearest the veneer layer comprising a cationically polymerized moiety or moiety polymerized via cationic and free radical cure mechanisms, and an outermost coating layer comprising a free radically polymerized moiety. The article exhibits less veneer checking than a veneered article coated only with free radically polymerized coating layers.
Abstract:
The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.
Abstract:
The invention relates to a method for treating wood or wood material surfaces with surface treatment agents and to the wood or wood materials treated by said method. Said method comprises the steps of a) impregnating wood, a wood material or a material for manufacturing a wood material with a hardenable aqueous composition, which contains at least one cross-linkable compound, selected from &agr;) low-molecular weight compounds V, having at least two N-bonded groups of formula CH2OH, wherein R=hydrogen or C1-C4 alkyl, and/or one 1,2-bishydroxyethan-1,2-diyl group, bridging two nitrogen atoms, &bgr;) precondensates of the compound V and ϝ) reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligoalkylene glycols, b) treating the material obtained in step a) at an elevated temperature and, optionally, transforming said material into a wood material and c) treating at least one surface of the wood or wood material to be treated with a surface treatment agent and, optionally, drying the treated surface in a manner known per se.
Abstract:
A wood product is made from treating wood with two solutions, in series, including a penetrating solution and a topcoat composition. The penetrating solution is made up of boric acid, a metallocene catalyst, a free radical initiator, a first film-forming polymer and an adhesion promoter. The topcoat includes a second continuous film-forming polymer. Application of the penetrating solution to the wood gets the solution into the wood to cross-link boric acid with cellulose fibers, then the topcoat forms the continuous film. The topcoat seals in the penetrating solution so that it does not leach out during subsequent exposure to water and weather, allowing soluble salts such as borax to migrate and infiltrate deeper into the wood. Microbiological growth is prevented by several mechanisms.
Abstract:
Wood is coated or impregnated with a silicone emulsion composition comprising (A) an organopolysiloxane having at least two silicon-bonded hydroxyl groups, (B) the reaction product of an amino-containing organoalkoxysilane and an acid anhydride, and optionally, (C) an epoxy-containing organoalkoxysilane and/or a partial hydrolyzate thereof, (D) colloidal silica and/or polysilsesquioxane, and (E) a curing catalyst, components (A) to (E) being emulsified and dispersed in water in the presence of a surfactant. The modified wood prevents water absorption, has dimensional stability and when previously impregnated with chemicals, is effective for preventing the chemicals from being leached out.
Abstract:
Wood cellulose is treated with a reactive silicate. The reaction is done to cellulose within the wood and may be catalyzed with acid or base catalysts or a carbon silicon halogen combination which produces in situ acid catalysts or a different combination to produce an in situ base catalyst which replaces some of the molecules or atoms within the cellulose structure with silicon, boron or other hydrophobic or anti-degrading agents. Preferably an organic solvent, such as alcohol is used to accelerate the reaction with the water in the wood. Here, the hydroxyl (OH) group on some or all of the cellulose molecules is partially replaced with silicon or an alternative atom or molecule to changes the character of the wood. The process may be modified to insert a preliminary step of adding a reactive agent to be locked into the wood. Manufacturing techniques to enhance the process using ultrasound or other wave generating techniques are also taught.
Abstract:
The present invention relates to in situ polymerization of fluoropolymer into porous substrates, to improve resistance to degradation by wetting and staining, and wood, to improve resistance to degradation, staining and warping.
Abstract:
A process of the manufacturing of decorative boards with an abrasion resistant surface and edges with joining functionality, the process comprising the steps: a) cutting a carrier board to the desired dimension and molding edges with joining functionality, b) treating at least the upper surface of the board, c) applying radiation curable dry acrylic lacquer powder by means of electrostatic spray nozzles, d) heating the acrylic lacquer so that it melts, e) curing the acrylic lacquer by means of radiation being selected from the group consisting of UV-radiation and electron beam radiation.