Amine-oxides

US5409532A · kind A · utility

Assignee

• LENZING AKTIENGESELLSCHAFT · AT

Inventors

• Stephan Astegger · Vöcklabruck, AT
• Dieter Eichinger · Vöcklabruck, AT
• Heinz Falk · Linz, AT
• Gunter Teubl · Neumarkt am Wallersee, AT

Key dates

• Filing date: Jan 21, 1993
• Grant date: Apr 25, 1995
• Expiry date: Jan 21, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C291/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Amine-oxides of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups with 1 to 4 C-atoms, R.sub.3 is hydrogen, a hydroxyl group or an alkoxy group with 1 to 4 C-atoms and m and n are whole numbers which fulfil the conditions 1.ltoreq.m.ltoreq.8 and 0.ltoreq.n.ltoreq.4 respectively, with the proviso that n is not 0 if R.sub.3 is a hydroxyl group or an alkoxy group, can be used with advantage for the preparation of mouldable or spinnable cellulose solutions which have a reduced tendency to crystallise.