CA3121101C - Siloxanes reactifs - Google Patents

Siloxanes reactifs

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Publication number
CA3121101C
CA3121101C CA3121101A CA3121101A CA3121101C CA 3121101 C CA3121101 C CA 3121101C CA 3121101 A CA3121101 A CA 3121101A CA 3121101 A CA3121101 A CA 3121101A CA 3121101 C CA3121101 C CA 3121101C
Authority
CA
Canada
Prior art keywords
siloxanes
branched
reaction system
groups
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA3121101A
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English (en)
Other versions
CA3121101A1 (fr
Inventor
Wilfried Knott
Horst Dudzik
Philippe Favresse
Michael Fiedel
Andre Brotzmann
Original Assignee
Evonik Operations GmbH
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Filing date
Publication date
Priority claimed from EP18210035.4A external-priority patent/EP3663346B1/fr
Application filed by Evonik Operations GmbH filed Critical Evonik Operations GmbH
Publication of CA3121101A1 publication Critical patent/CA3121101A1/fr
Application granted granted Critical
Publication of CA3121101C publication Critical patent/CA3121101C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

La présente invention concerne (i) des systèmes réactionnels destinés à préparer des siloxanes portant des fonctions acétoxy, comprenant a) des silanes et/ou des siloxanes portant des groupes alkoxy et/ou b) des silanes et/ou des siloxanes portant des groupes acétoxy, c) des silanes et/ou des siloxanes portant des groupes hydroxy, d) éventuellement des cycles siloxane et/ou DT simples, e) un milieu réactionnel, comprenant un anhydride acétique, un acide perfluoroalcane-sulfonique ainsi que de préférence un acide acétique, (ii) un procédé destiné à préparer des siloxanes portant des fonctions acétoxy linéaires ou ramifiées ainsi que leur utilisation pour la préparation de polyéthersiloxanes.
CA3121101A 2018-12-04 2019-11-19 Siloxanes reactifs Active CA3121101C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18210035.4 2018-12-04
EP18210035.4A EP3663346B1 (fr) 2018-12-04 2018-12-04 Siloxane réactif
PCT/EP2019/081728 WO2020114762A1 (fr) 2018-12-04 2019-11-19 Siloxanes réactifs

Publications (2)

Publication Number Publication Date
CA3121101A1 CA3121101A1 (fr) 2020-06-11
CA3121101C true CA3121101C (fr) 2026-03-31

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