Verfahren zur Reduktion von Regioisomer, Wobei die Doppelbindung von Ethylenisch Ungesättigten Alkoxylierten Alkoholen Verschoben Wird

Details

Veröffentlichungs-Nr.

EP4015481

Aktenzeichen

EP20214389

Anmeldetag

15. Dezember 2020

Veröffentlichung

7. Juni 2023

Erteilung

7. Juni 2023

Rechtsraum

EP

IPC

C04B24/26C07C43/15C08F290/06C08F216/12C07C41/58C04B28/02C08F216/14

Abstract

The present invention relates to a process for the reduction of the content of a compound I of general formula (II)where R¹ is hydrogen or methyl, each R², independently from each other, is hydrogen or methyl, R³ is hydrogen or an aliphatic or cycloaliphatic or aromatic hydrocarbon with 1 - 8 carbon atoms, AO is a C2 - C12 oxyalkylene group,x = 0 or 1, andn = 2 - 350,from a mixture comprising or consisting of a compound I of general formula (II) and an alkoxylated alcohol A of general formula (I)where R¹, R², R³, AO, x, and n are as described in general formula (II) above, characterized in that said process comprises a treatment of said mixture comprising or consisting of a compound I and an alkoxylated alcohol A with an acid.The present invention also relates to the use of such alkoxylated alcohols A for the production of polycarboxylate ethers.

Anmelder

Firma

SIKA TECHNOLOGY AG

Land

🇨🇭 Schweiz

Fachgebiete