Non-aqueous sound-deadening composition containing a non-pulverulent polyacrylate binder and a radically polymerizable compound

US9879150B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Dirk Wulff · Schifferstadt, DE
• Ulrike Licht · Mannheim, DE
• Peter Preishuber-Pfluegl · Ludwigshafen, DE

Key dates

• Filing date: Apr 17, 2015
• Grant date: Jan 30, 2018
• Expiry date: Apr 17, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/56
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A description is given of a nonaqueous sound deadener composition comprising (a) a nonpulverulent polyacrylate binder having a K value in the range from 10 to 35, measured as a 1% strength solution in tetrahydrofuran; (b) inorganic fillers; and a radically polymerizable compound which has at least one radically polymerizable C—C double bond and possesses a boiling point at atmospheric pressure of greater than 160° C. Also described is a method for damping oscillations or vibrations of components of vehicles and machines, using the sound deadener composition of the invention.