Flame retardant polymethyl methacrylate molding compound

US4585818A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Karl A. Jung · Ober-Ramstadt, DE
• Karl-Heinz Jakob · Lampertheim, DE
• Manfred Munzer · Bensheim, DE
• Wilhelm Wopker · Emmelshausen, DE

Key dates

• Filing date: Mar 19, 1984
• Grant date: Apr 29, 1986
• Expiry date: Mar 19, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5337
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Flame retardant molding compounds comprising polymers of methyl methacrylate having an average molecular weight between 1.times.10.sup.5 and 2.times.10.sup.5, which molding compounds contain from 8 to 15 weight percent of at least one chloroalkylphosphoric acid ester of the formula ##STR1## wherein R.sub.1 is alkyl or ##STR2## and R.sub.2 is hydrogen, methyl, ethyl, or chloro-substituted methyl or ethyl.