Preparation of tris-(halophenoxy)-sym.-triazines

US4039538A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Herbert Klinkenberg
• Egon N. Petersen · Neunkirchen, DE
• Werner Schmidt · Rengsdorf, DE

Key dates

• Filing date: Nov 13, 1974
• Grant date: Aug 2, 1977
• Expiry date: Nov 13, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/34924
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for the preparation of tris-(halophenoxy) -1,3,5-triazine of formula I ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 is each a phenoxy substituent having a 0-2 alkyl groups, and 0-2 halo alkyl groups, and has 1-5 halogen atoms which comprises contacting cyanuric acid chloride with alkali phenolate of the formulae R.sub.1 Me, R.sub.2 Me and R.sub.3 Me, wherein Me is alkali metal, and wherein said formulae can be identical or different, in the presence of alkylene diol monoalkyl ether, e.g. methyl or ethyl cellosolve. The ethers are good solvents for the phenolates. The products are used as flame-proofing agents for plastics.