Bayer Materialscience Ag

Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Thomas Rüb

Uwe Kuenzel

Johannes Van De Braak

Catherine Lövenich

Ralf Koester, Sr

Uwe Kenzel

Uwe Künzel

Heinrich-Peter Sobik

Uwe KÜNZEL

The invention relates to a high-pressure device for application of an expandable reaction mixture on a surface, to a method for producing expandable foams, to a device for producing sandwich composite elements, and to a method for producing expanded sandwich composite elements. The high-pressure device includes a mixing head, a distributor head fluidically connected downstream of the mixing head, at least three outlet lines attached to the distributor head, a high-pressure feed line of a component A to the mixing head, a high pressure feed line of a component B to the mixing head, at least one static mixer for mixing an inert gas to the component A, the component B or a mixture of components A and B, at least one high-pressure feed line for the inert gas, which is under increased pressure, and at least one measurement and control unit for the desired pressure of the components on the mixing head.

Methods for applying a foamable reaction mixture, high pressure device and device for producing sandwich composite elements

The invention relates to a high-pressure device for the application of an expandable reaction mixture on a surface, to a method for producing expandable foams, to a device for producing sandwich composite elements, and to a method for producing expanded sandwich composite elements. The high-pressure device includes a mixing head, a distributor head fluidically connected downstream of the mixing head, at feast three outlet lines attached to the distributor head, a high-pressure feed line of a component to the mixing head, a high pressure feed line of a component B to the mixing head, at least one static mixer for mixing an inert gas to the component A, the component B or a mixture of components A and B, at least one high-pressure feed line for the inert gas, which is under increased pressure, and at least one measurement and control unit for the desired pressure of the components on the mixing head.

High-pressure device

The invention relates to an application device for the simultaneous and uniform discharge of a foamable reaction mixture on to a surface, a device for the production of sandwich composite elements and a process for the continuous or discontinuous production of sandwich composite elements, especially foam composite elements with rigid and flexible outer layers.

Devices and process for the production of sandwich composite elements

An apparatus for the production of sandwich composite elements which includes at least two feed apparatus for facings, to which an application apparatus for an adhesion promoter, an application apparatus for a core layer, a conveying apparatus and a cutting apparatus are connected one after the other. The application apparatus for the adhesion promoter includes at least one feed line for the adhesion promoter, a rotary table with at least one lateral outlet orifice and a drive for the rotary table.

Apparatus and process for the production of sandwich composite elements

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Leverkusen, Germany

Thomas Rüb