Abstract: An adhesive for a porous material is made of a curing agent composition and a principal component including an epoxy resin. The curing agent composition for the epoxy resin adhesive includes a water-based polyaminoamide curing agent or a water-based polyamide curing agent, having both a hydrophilic group and lipophilic group, tertiary amine, and water. The water-based polyaminoamide curing agent or the water-based polyamide curing agent is a condensate which is produced via a condensation reaction of polyaminoamide or polyamide with a dimer acid or trimer acid. The adhesive for a porous material precluding formaldehyde indicates a long pot life while demonstrating high adhesion in a short period of time.

Abstract: An adhesive, comprising (A) a polymeric MDI, (B) modified polyvinyl acetate emulsion, (C) aqueous polyvinyl alcohol solution, and (D) a filler. Preferably, a mass ratio of A:B:C:D is 30:(60–160):(50–160):(10–140) provided that the aqueous polyvinyl alcohol solution (C) is in a concentration of 10% by mass.

Abstract: An adhesive, comprising (A) a polymeric MDI, (B) modified polyvinyl acetate emulsion, (C) aqueous polyvinyl alcohol solution, and (D) a filler.

Abstract: An adhesive, comprising (A) a polymeric MDI, (B) modified polyvinyl acetate emulsion, (C) aqueous polyvinyl alcohol solution, and (D) a filler. Preferably, amass ratio of A:B:C:D is 30:(60-160):(50-160):(10-140) provided that the aqueous polyvinyl alcohol solution (C) is in a concentration of 10% by mass.

Abstract: In production of a decorative board with overlaid wood pieces used for surface covering of various furniture, building materials and car interior decoration, wood pieces supplied from an overhead hopper by gravity are dispersed on a flat feeder by application of vibration and are transferred in a dispersed state onto base boards successively supplied by a transfer conveyor in a horizontal direction. Almost no need for manual operation raises production efficiency and dispersion by mechanical vibration assures high degree of uniformity of patterns on the products. Fully automatic processing enables reproduction of patterns with commerically acceptable fidelity.

Abstract: In production of a planar wooden decorative article used for surface covering of furnitures and home interior decorations, a resin prepregnated sheet is prepared by impregnating a material sheet with hardenable resin solution and plurality of resin prepregnated sheets are combined with small wooden pieces to form a laminated composite which is then hardened by heating under pressure. The product has a rich woody impression due to inclusion of the small wooden pieces predominant in the surface region and high toughness coming from the laminated construction.

Abstract: A decorative board has a small timber dispersed, colored, opaque resin layer in which a multiplicity of small timber pieces are dispersed, the small pieces of timber in this layer are exposed on the surface of the layer, and the surface of the layer is flat. In addition, a transparent resin layer or a glass fiber-mixed, transparent resin layer is provided on the small timber piece-dispersed, colored, transparent resin layer, or the small timber piece-dispersed, colored, opaque resin layer is provided on a substrate. Consequently, a beautiful decorative board can be provided in which the side surface of the small timber pieces exposed to the surface of the small timber piece-dispersed, colored opaque resin layer are arranged and disposed parallel with the surface of the decorative board, the figure patterns of the small timber pieces appear on the surface of the decorative board effectively without waste, and the figure patterns are thus emphasized.