Abstract:
The invention relates to a dispersion containing (i) at least one liquid polymer and (ii) at least one polymer particle mixture comprising at least one meltable solid substance and at least one copolymer (C). Said at least one copolymer (C) is a copolymer consisting of at least one a,ß-ethylenically unsaturated monomer and at least one polymerisable polymer from the class of liquid polymers in (i). The invention also relates to a method for the production of said dispersion, to the use of said dispersion for producing polyurethanes, and to a method for producing polyurethanes, according to which at least one dispersion of said type is reacted with at least one polyisocyanate.
Abstract:
This invention relates to process for preparing fluorinated dyes selected from the group consisting of compounds of the general formulae (I) and (III) and mixtures thereof by reacting the corresponding compounds which do not have R12 or R30 as substituents with compounds of the general formula R12A or R30A where A is selected from the group consisting of I and Br, the compounds obtained from said process and and the use of these fluorinated dyes in electrophoretic displays.
Abstract:
A process of concentrating a suspension of solid particles in an aqueous medium comprising introducing into the suspension at least one organic polymeric flocculant and addition of an agent system, in which the solid particles in the suspension are flocculated by the action of the at least one organic polymeric flocculant and the so formed flocculated solid particles settle to form a settled layer of solids suspended in the aqueous medium, wherein the agent system comprises: i) at least one oxidising agent; ii) at least one control agent,
Abstract:
Dispersión que contiene (i) al menos un polímero que es líquido a 25°C y 1013 mbar y (ii) al menos una mezcla de partículas de polímero que incluye al menos un sólido fundible y al menos uncopolímero (C), caracterizado porque el al menos un copolímero (C) es un copolímero constituido por al menos un monómero &alpha:, ßetilénicamente insaturado y al menos un polímero que puede ser polimerizado, de la categoría de los polímeroslíquidos elegidos de entre el grupo consistente en polioles, que se basan en un alcohol iniciador insaturado, o sonobtenidos mediante reacción de los polioles con ácidos insaturados o ésteres o isocianatos, isocianatos poliméricos,que son obtenidos mediante reacción de isocianatos poliméricos terminados en NCO con hidroxialcoilacrilatos o -metacrilatos, pre-polímeros de poliuretano, que son obtenidos mediante reacción de pre-polímeros de poliuretanoterminados en NCO con hidroxialcoilacrilatos o -metacrilatos, poli(met)acrilatos, que son obtenidos mediantereacción de poli(met)acrilatos con alcoholes insaturados, poliisobuteno el cual es obtenido mediante reacción dePIBSA (anhídrido de ácido poliisobuten-succínico) con alcoholes insaturados, y mezclas de ellos.
Abstract:
A process of concentrating a suspension of solid particles in an aqueous medium comprising introducing into the suspension at least one organic polymeric flocculant and addition of an agent system, in which the solid particles in the suspension are flocculated by the action of the at least one organic polymeric flocculant and the so formed flocculated solid particles settle to form a settled layer of solids suspended in the aqueous medium, wherein the agent system comprises: i) at least one oxidising agent; ii) at least one control agent,
Abstract:
A process of concentrating a suspension of solid particles in an aqueous medium comprising introducing into the suspension at least one organic polymeric flocculant and addition of an agent system in which the solid particles in the suspension are flocculated by the action of the at least one organic polymeric flocculant and the so formed flocculated solid particles settle to form a settled layer of solids suspended in the aqueous medium wherein the agent system comprises: i) at least one oxidising agent; ii) at least one control agent
Abstract:
A process of concentrating a suspension of solid particles in an aqueous medium comprising introducing into the suspension at least one organic polymeric flocculant and addition of an agent system, in which the solid particles in the suspension are flocculated by the action of the at least one organic polymeric flocculant and the so formed flocculated solid particles settle to form a settled layer of solids suspended in the aqueous medium, wherein the agent system comprises: i) at least one oxidising agent; ii) at least one control agent,
Abstract:
Un proceso de concentración de una suspensión en partículas sólidas en un medio acuoso que comprende introducir en la suspensión floculante por lo menos un polímero orgánico y la adición de un sistema de agente, en donde las partículas sólidas en la suspensión están floculadas por la acción de por lo menos un floculante polimérico orgánico y partículas sólidas así formadas floculadas se depositan para formar una capa asentada de sólidos en suspensión en el medio acuoso, en donde el sistema de agente comprende: i) por lo menos un agente oxidante; ii) por lo menos un agente de control.