Patent ID: 8833297
Filing Date: 2014-09-16
Classification: B29C,Y10T

Abstract:
1. A device for applying a foamable reaction mixture to a substrate comprising: a) a mixing head in which components of the foamable reaction mixture are combined, b) a distributor head located flow-wise downstream of the mixing head, c) at least three outlet lines fitted to the distributor head through which the foamable reaction mixture flows and is discharged onto the substrate, d) a first feed line through which a component A is introduced into the mixing head, e) a second feed line through which a component B is introduced into the mixing head, f) at least one static mixer for intermixing an inert gas with component A, component B or a mixture of components A and B prior to entry of component A and/or component B into the mixing head, g) at least one feed line under elevated pressure for the inert gas, the gas being compressed to a pressure of >150 bar prior to introduction into component A, component B and/or the mixture of components A and B, and the feed line being positioned before the static mixer and flow-wise upstream of the mixing head and h) at least one measurement and control unit for establishing the pressures of each components at the mixing head.