Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing terpyridine from 2-cyanopyridine on an industrial scale. SOLUTION: Terpyridine is produced by a method containing a successive reaction process comprising (A) the condensation of a (1-4C alkyl)pyridine-2- carboxylate derivative and acetone in an aprotic solvent in the presence of a base, (B) the reaction of the obtained 1,5-bis(2-pyridyl)pentane-1,3,5-trione derivative with ammonia or an ammonium salt of the formula: (NH4 )q Y while removing produced water from the system and (C) the chlorination of the obtained 2,6-bis(2-pyridyl)-4(1H)pyridinone derivative.
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 an aminoplast resin nonwoven film containing a nonwoven that is impregnated with a cross-linkable aminoplastic resin, the nonwoven containing 1 to 100 % by weight of melamine fibers with regard to the total fiber content. The invention also relates to the use of aminoplast resin nonwoven films for 3D coating substrates with a three-dimensionally structured surface. The invention further relates to laminates containing a substrate, optionally a woven or decorative paper and to the aminoplast resin nonwoven film according to the invention.
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:
Mezclas de ésteres de ácidos carboxílicos di- o tribásicos de la fórmula I [(MOOC)a-b-R1-(COO-)b]m [-R2-]n [-R3-]p [OH]q (I), donde a y b significan respectivamente las cifras 2 o 3, siendo b a, m es un número entero de 1 a 6, preferentemente de 1 a 3, existiendo las relaciones 0 n (b ¿ 2) m + 2 (m - 1) p (b ¿1) m + 1, siendo q = (b ¿ 2) m + 2 ¿ n, M representa hidrógeno o un equivalente metálico, y R1 es un resto hidrocarburo di- o trivalente, saturado o mono- o poliinsaturado, alifático o cicloalifático, con 2 a 6 átomos de carbono, estando al menos un 50 % en moles de estos restos R1 saturados, o a lo sumo monoinsaturados, y presentando un grupo ácido sulfónico, o es un resto hidrocarburo aromático que porta un grupo ácido sulfónico tri- o tetravalente, con 6 átomos de carbono, R2 alquilo predominantemente ramificado, en caso dado substituido por alcoxi, alquilcarboniloxi o alcoxicarbonilo, con 9 a 51, preferentemente 9 a 45 átomos de carbono, y R3 significa alcanodiilo con 10 a 30 átomos de carbono, con éteres y ésteres libres de grupos OH con 18 a 45 átomos de carbono, y en caso dado alcanoles de la fórmula R2OH y alcanodioles de la fórmula R3(OH)2, ascendiendo, referido a la suma SUG de pesos de éteres contenidos en la mezcla, exentos de OH, de ésteres exentos de grupos OH, alcanoles, alcanodioles y grupos ¿OH2- y (-O)2R3, la fracción de grupos ¿OR2 asciende hasta a un 85 % , la fracción de grupos (-O)2R3 hasta un 16 %, y la fracción de éteres y ésteres libres de grupos OH hasta un 45 %.
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:
A fat liquoring agent for use in production or treatment of leather or hides contains a mixture of an oxidized sulfited native oil and an oxidized sulfated native oil; an emulsifier mixture of (i) a 4-12-alkoxylated 6-14C alkanol, (ii) a 15-40-alkoxylated 12-24C alkanol and (iii) a 50-100-alkoxylated 12-24C alkano. A fat liquoring agent for use in production or treatment of leather or hides contains a mixture of an oxidized sulfited native oil and an oxidized sulfated native oil; an emulsifier mixture of a 4-12-alkoxylated 6-14C alkanol, a 15-40-alkoxylated 12-24C alkanol and a 50-100-alkoxylated 12-24C alkanol; and optionally a linear, cyclic or branched polymer of a dialkylsilanediol of formula SiR2(OH)2 (I); R = methyl, ethyl, n-propyl or phenyl; and/or a sulphonated succinic acid, salt or mono- or di-ester of formula (I) . R1 and R2 = H, M, saturated linear 1-18C alkyl or saturated branched 3-18C alkyl, with at least1 of R1 and R2 not being H or M; M = alkali metal or 0.5 alkaline earth metal; and M+ = H+, (NH4)+, alkali metal+ or 0.5 alkaline earth metal+
Abstract:
Fatliquoring agents for the production and/or for the treatment of leather comprising (A) at least one natural lipoid; (B) at least one polymer based on the monomers acrylic acid and/or methacrylic acid; (C) an emulsifier composition containing a C 6 - to C 17 -alkanol alkoxylated with up to 12 alkylene oxide units or a mixture of two or more such alkanols and a C 12 - to C 24 -fatty alcohol mixture alkoxylated with at least 15 alkylene oxide units.