Abstract:
Disclosed is a method for producing alkoxycarbonylamino triazines of formula (I) by reacting diaminotriazines or triaminotriazines with cyclic carbonic acid esters and optional subordinate quantities of acyclic carbonic acid esters in the presence of an alcohol and an alkaline alkanol or alkaline-earth alkanol as a base. In said formula, Y1 represents hydrogen, C1-C4 alkyl, phenyl that is optionally substituted by C1-C4 alkyl, C1-C4 alkoxy, or halogen, or a radical of formula NR5R6 while R1, R2, R3, R4, R5, and R6 independently represent hydrogen or a radical of formula COOX or X, wherein X represents C1-C13 alkyl, the carbon skeleton of which can be interrupted by 1 or 2 oxygen atoms having the function of ether and/or substituted by hydroxy, or C3-C6 alkenyl provided that at least one of the radicals R1 to R4 in formula (I) represents COOX, or at least one of the radicals R1 to R6 in said formula represents COOX if Y1 represents NR5R6.
Abstract:
The invention relates to a method for preparing alkoxycarbonylamino-triazines of the formula (I) by reacting diaminotriazines or triaminotriazines with dimethylcarbonate in the presence of an alcohol and an alkaline or alkaline-earth methanolate used as a base.
Title translation:WÄSSRIGEMELAMINHARZMISCHUNG,VERFAHREN ZU DEREN HERSTELLUNG UND DEREN VERWENDUNG ZUMTRÄNKENVONSAUGFÄHIGEMTRÄGERMATERIAL,SOWIE UNTER VERWENDUNG DER MELAMINHARZMISCHUNG HERGESTELLTES VERBUNDMATERIAL
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 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 a method for producing polymethylolated melamine and polymethylolated melamine compounds that are polyetherified with alkanol, the methylolation reaction being carried out in a mixing reactor.