Flameproof moulding compositions based on polyolefins

US3943194A · kind A · utility

Assignees

• Hoechst GmbH · DE
• Ruhrchemie Aktiengesellschaft · DE

Inventors

• Franz-Josef Dany · Lechenich, DE
• Joachim Wortmann · Kerpen, DE
• Peter Munch
• Gunther Braun · Wuppertal, DE

Key dates

• Filing date: Oct 1, 1974
• Grant date: Mar 9, 1976
• Expiry date: Oct 1, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S260/24
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Flameproof moulding compositions, which are based on polyolefins and made from a pulverulent blend comprising a polyolefin as its essential ingredient and a plurality of flame-retardant ingredients. The flame-retardant ingredients comprise red phosphorus and at least one organic nitrogen compound which carbonizes after inflammation. The moulding compositions contain the flame-retardant ingredients in a total proportion of at most about 30 weight %. Red phosphorus and organic nitrogen compound are used in a quantitative ratio between 99:1 and 1:99.