METHOD FOR PREPARING A THERMOPLASTIC POLYURETHANE HAVING A LOW GLASS TRANSITION TEMPERATURE

METHOD FOR PREPARING A THERMOPLASTIC POLYURETHANE HAVING A LOW GLASS TRANSITION TEMPERATURE

The present invention is directed to a method for preparing a thermoplastic polyurethane having a low glass transition temperature. The process according to the present invention comprises the steps of providing at least one polyol composition (P) comprising a poly-e-caprolactone polyol (P1), and a...

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Hauptverfasser: POPPENBERG, JOHANNES, RICHTER, SEBASTIAN, POESELT, ELMAR
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Sprache:eng ; fre
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator POPPENBERG, JOHANNES
RICHTER, SEBASTIAN
POESELT, ELMAR
description The present invention is directed to a method for preparing a thermoplastic polyurethane having a low glass transition temperature. The process according to the present invention comprises the steps of providing at least one polyol composition (P) comprising a poly-e-caprolactone polyol (P1), and a second polyol (P2) which is different from the first polyol (P1), and reacting the at least one polyol composition (P) with at least one polyisocyanate (P1) and at least one low molecular weight diol (CE) optionally in the presence of at least one catalyst (CA) and/or at least one additive (AD) to obtain a thermoplastic polyurethane. The present invention is also directed to the thermoplastic polyurethane obtained according to the process of the prestn invention and the use thereof in extruded articles and injection molded articles. La présente invention concerne un procédé de préparation d'un polyuréthanne thermoplastique présentant une faible température de transition vitreuse. Le procédé selon la présente invention comprend les étapes consistant à fournir au moins une composition de polyols (P) comprenant un poly-e-caprolactone polyol (P1), et un second polyol (P2) qui est différent du premier polyol (P1), et la réaction de ladite composition de polyols (P) avec au moins un polyisocyanate (P1) et au moins un diol à faible masse moléculaire (CE), en option en présence d'au moins un catalyseur (CA) et/ou d'au moins un additif (AD), pour obtenir un polyuréthanne thermoplastique. La présente invention concerne également le polyuréthanne thermoplastique obtenu conformément au procédé de la présente invention, et son utilisation dans des articles extrudés et des articles moulés par injection.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title METHOD FOR PREPARING A THERMOPLASTIC POLYURETHANE HAVING A LOW GLASS TRANSITION TEMPERATURE
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