Verfahren zum Stabilisieren von Polyoxymethylenen

Verfahren zum Stabilisieren von Polyoxymethylenen

The terminal groups of polyoxymethylene diols are modified with epoxides in the presence of compounds containing labile halogen. Specified epoxides are propylene oxide, epichlorohydrin, styrene oxide and phenyl glycidyl ethers -compounds with more than one epoxide group per molecule may also be empl...

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Hauptverfasser: KERN WERNER, DEIBIG HEINRICH, JAACKS VOLKER
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Sprache:ger
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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 KERN WERNER
DEIBIG HEINRICH
JAACKS VOLKER
description The terminal groups of polyoxymethylene diols are modified with epoxides in the presence of compounds containing labile halogen. Specified epoxides are propylene oxide, epichlorohydrin, styrene oxide and phenyl glycidyl ethers -compounds with more than one epoxide group per molecule may also be employed, e.g. butanediol diglycidyl ether. Labile halogen compounds specified are triphenyl methyl chloride (particularly advantageous), alphachloromethyl ether, acetyl chloride, benzoyl chloride and chloroformic acid ethyl ester. The reaction may take place in the presence or absence of an inert medium at from 50 DEG to 240 DEG C.
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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 Verfahren zum Stabilisieren von Polyoxymethylenen
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