Abstract:
The invention relates to an aqueous impregnating resin solution containing (A) between 77.5 and 99.8 wt. %, in relation to the impregnating resin solution, of aqueous condensates based on melamine and formaldehyde; (B) between 0.1 and 20 wt. %, in relation to the impregnating resin solution, of at least one specific quaternary ammonium compound; and (C) between 0.1 and 2.5 wt. %, in relation to the impregnating resin solution, of an aqueous hardener solution. The invention also relates to an aqueous impregnating resin solution consisting of constituents (A) and (B), and to an aqueous hardener mixture consisting of constituents (B) and (C). The invention further relates to an impregnating resin film containing fibrous substances containing cellulose and impregnated with the aqueous impregnating resin solution, and to the use of the aqueous impregnating resin solution, or impregnating resin film, for the antistatic finishing of coated materials.
Abstract:
The invention relates to aminoplastic resin films containing decorative paper impregnated with a homogeneous, single-phase aminoplastic resin mixture containing (A) between 50 and 99.9 wt. %, in relation to the aminoplastic resin mixture, of aqueous condensation products containing 1 mol melamine and between 1.3 and 2.5 mol formaldehyde, (B) between 0.1 and 30 wt. %, in relation to the aminoplastic resin mixture, of specific polyalkylene glycols and/or polyalkylene glycol derivatives, and (C) between 0 and 20 wt. %, in relation to the aminoplastic resin mixture, of additives, auxiliary agents and/or additives. The invention also relates to the use of said films for coating derived timber products or plastics, especially for coating three-dimensionally structured surfaces. The invention further relates to the use of specific polyalkylene glycols, polyalkylene glycol derivatives and/or alkoxylated polyamides as bonding agents for plastic surfaces in aminoplastic resins, and also to specific aminoplastic resin mixtures.
Abstract:
The invention relates to an aqueous melamine resin mixture with a resin content in the range of 50 to 70 wt. %, based on the aqueous melamine resin mixture, with melamine and formaldehyde present in the resin in a molar ratio of 1:3 to 1:1 and the resin contains 1 to 10 wt. % polyvalent alcohols, 0 to 8 wt. % caprolactam and 0.5 to 10 wt. % 2-(2-phenoxyethoxy)-ethanol and/or polyethylene glycol with an average molecular mass of 200 to 1500 each based on the aqueous melamine resin mixture. The invention further relates to a method for production of said melamine resin mixtures and use thereof for the impregnation of absorbent support materials and a composite material made from the melamine resin mixture and the support material.
Abstract:
The invention relates to a method for producing coated substrates comprising a three-dimensionally structured surface. According to said method, a decorati ve paper containing between 5 and 90 wt. % synthetic polymer fibres, in relatio n to the total fibre content, is impregnated with a cross-linkable amino resin , is applied to the substrate and three-dimensionally shaped. The invention al so relates to amino resin sheets or films and to the use of a modified decorati ve paper for amino resin sheets or films for the 3D coating.
Abstract:
The invention relates to the use of melamine resin foils and/or films for coating three-dimensionally structured surfaces and/or moulded bodies, made of fibrous material containing cellulose, which are post-impregnated or pre- impregnated and post-impregnated with an aqueous solution containing (i) a melamine formaldehyde condensate, (ii) an etherified melamine formaldehyde condensate and (iii) a polymer dispersion.