Abstract:
The invention relates to flexible, flat substrates having an abrasive surface, characterised in that they can be obtained by applying an aqueous solution or dispersion of at least one pre-condensate of a thermocurable resin on the upper and/or lower side of a flexible, flat substrate, in an amount of at least 5 to 90% in weight in relation to the non-coated, dry substrate, the pre-condensate is cross-linked and the treated substrate is dried.
Abstract:
The invention relates to a light material containing wood having an average density in the region of between 200 to 600 kg/m 3 , and which comprises, in relation to the material containing wood, A) 30 to 95% by wt. of wood particles, B) 1 to 25% by wt. of a filling material having a bulk density in the region of between 10 to 150 kg/m 3 , selected from the group consisting of foamable plastic particles and already foamed plastic particles, C) 0.1 to 50% by wt. of a binding agent, and optionally, D) additives. Said claimed material containing wood is characterised by the following relation between the d' values in accordance with the Rosin-Rammler-Sperling-Bennet distribution of the wood particles (A) and the particles of the filling material (B): d' of the particles (A) =2,5 OEd' of the particles (B).
Abstract:
Procedimiento para la elaboración de una mezcla de reacción alcanólica, que se produce en la obtención de alcoxicarbonilaminotriazinas, que contiene al menos una alcoxicarbonilaminotriazina, al menos un carbonato cíclico y/o acíclico, al menos un alcanol con 1 a 13 átomos de carbono, que contiene en caso dado uno o dos átomos de oxígeno como enlace tipo éter, y en caso dado substituido por alquilo con 1 a 4 átomos de carbono y/o hidroxi, así como al menos un alcanolato alcalino o alcalinotérreo, en caso dado melamina, y en caso dado catalizador, en el que se eliminan componentes polares y/o iónicos mediante extracción con un agente de extracción polar, no miscible completamente con la fase orgánica presente en la mezcla de reacción, mediante lo cual se obtienen una fase alcanólica, que contiene al menos una alcoxicarbonilaminotriazina, y una fase polar, que contiene agente de extracción con componentes polares y/o iónicos disueltos en la misma, caracterizado porque la extracción se lleva a cabo en una unidad mezcladora/asentadora, una columna de extracción, un extractro basado en separación por campo centrífugo, o combinaciones de los mismos.
Abstract:
The invention relates to the acceleration of the hardening of compositions of epoxy compounds and amino or anhydrid hardeners by adding highly-branched polyetheramines. Said highly branched polyetheramines can comprise terminal hydroxy groups (polyols) and/or amino groups (amino-modified). Said amino-modified highly branched polyetheramines can be obtained by subsequent modification of the terminal hydroxy groups of highly branched polyetheramine polyols.
Abstract:
The invention relates to light wood-based materials containing 30 - 92.5 % by wt. of wood particles, in relation to the wood-based material. Said wood particles have an average density of between 0.4 - 0.85 g/cm 3 , 2.5 - 20 % by wt. of polystyrene and/or styrene copolymer as filling material, in relation to the wood-based material. Said filling material has a bulk density of between 10 -100 kg/m 3 , and 5 - 50 % by wt. of binding agents, in relation to wood-based material. The average density of the light wood-based material is less than or equal to 600 kg/m 3 .
Abstract:
A composite foam containing A) foamed particles containing A1) 25 to 95% by weight styrene polymer(s), A2) optionally a blowing agent, A3) optionally one or more additives, B) an aminoplast component containing B1) 1 to 65% by weight cured, optionally modified, and optionally foamed aminoplast resin, B2) 0.1 to 20% by weight of one or more flame retardant organic phosphorous compounds having a phosphorous content of 5 to 80% by weight (based on the respective compound) and/or expanded graphite, B3) optionally one or more flame retardant synergists or the component B2), B4) optionally a blowing agent, B5) optionally one or more additives, wherein the percentages by weight - where not stated otherwise - relate to the sum of the components A1), B1) and B2), is suitable, in particular, as insulating material.
Abstract:
The invention relates to compounds of formula (I) wherein R 1 represents an organic group having a (meth)acrylic group, and R 2 , R 3 and R 4 independently of one another represent an H atom or a C1 to C10 alkyl group.
Abstract:
La presente invención se refiere a una composición aglutinante que comprende a) el componente A que comprende polímero(s) A1 que tienen grupos amino primarios y/o secundarios, en donde el(los) polímero(s) A1 tiene(n) un contenido de nitrógeno del grupo amino primario y secundario de al menos 1% en peso y b) el componente B que comprende el componente B1 que es 1,3-dihidroxiacetona, glicolaldehído, gliceraldehído o cualquier mezcla de los mismos, en donde el(los) polímero(s) A1 tiene(n) un peso molecular promedio en peso total Mw,total de al menos 800 g/mol. (Traducción automática con Google Translate, sin valor legal)