The Development of a Sound Insulation Package for Car Floor Coverings Using a Combination of Polyurethane Technologies

Abstract

A patented process is used to produce barium sulphate filled polyurethane elastomers using a mechanical frothing technique. The frothed mixture is coated on the underside of the car carpet and cured in an oven. Cup densities ranging from 0,7 to 2 kg/l are used to apply typically 1,0 to 4,0 kg/m² add-on weight.