Intumescing material for pipe cuffs

US5934333A · kind A · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Herbert Munzenberger · Wiesbaden, DE
• Stefan Rump · Landsberg, DE
• Horst-Dieter Mika · Landsberg, DE

Key dates

• Filing date: Dec 16, 1997
• Grant date: Aug 10, 1999
• Expiry date: Dec 16, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K21/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A fire retardant molding composition for molded objects such as pipes and pipe cuffs includes a thermoplastic matrix including a matrix stabilizer and intumescing components including expandable graphite.