PROCEDIMIENTO MEJORADO PARA LA OBTENCION DE POLIVINIL BUTIRAL DE PROPIEDADES MEJORADAS

PROCEDIMIENTO MEJORADO PARA LA OBTENCION DE POLIVINIL BUTIRAL DE PROPIEDADES MEJORADAS

The preparation of polyvinylbutyral is commonly effected by the acetalization of polyvinyl alcohol with n-butyraldehyde, either in an organic solvent or in water. By varying the reaction conditions it is possible to obtain the polyvinylbutyral in a coarse-grain or fine-grained form. The production o...

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Hauptverfasser: JOACHIM EBIGT, HANS DIETER HERMANN, ULRICH MARTIN HUTTEN
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Sprache:spa
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator JOACHIM EBIGT
HANS DIETER HERMANN
ULRICH MARTIN HUTTEN
description The preparation of polyvinylbutyral is commonly effected by the acetalization of polyvinyl alcohol with n-butyraldehyde, either in an organic solvent or in water. By varying the reaction conditions it is possible to obtain the polyvinylbutyral in a coarse-grain or fine-grained form. The production of polyvinylbutyral having improved properties is possible by using a polyvinylbutyral having a content of from 17 to 24% by weight of vinyl alcohol units as starting material for an after-treatment in the presence of an organic sulfonic acid having an emulsifying effect. The polyvinylbutyral obtained is particularly suitable for the manufacture of compound sheets.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title PROCEDIMIENTO MEJORADO PARA LA OBTENCION DE POLIVINIL BUTIRAL DE PROPIEDADES MEJORADAS
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