Spirocyclic boron compounds, a process for their manufacture and their use as a flame-retardant additive

US4265664A · kind A · utility

Assignee

• Chemie Linz GmbH · AT

Inventors

• Gerald Saischek · Graz, AT
• Karlheinz Wegleitner · Budapest, HU
• Ferdinand Heu · Linz, AT
• Roman Wohlmuth · Linz, AT

Key dates

• Filing date: May 11, 1979
• Grant date: May 5, 1981
• Expiry date: May 11, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel spirocyclic boron compounds of the formula ##STR1## in which R.sub.1 and R.sub.2 are various halogen containing organic :radicals and Z.sup.+ is a hydrogen ion, an equivalent of an alkaline-earth metal ion, a guanidinium ion or alkylammonium ion as flame retarding agents in various plastics, such as polyurethanes, epoxide resins and polyesters.