Method and device for the application of at least two chemically different flowing media
AssigneeBASF Akiengesellschaft
InventorsOral Aydin, Andree Dragon, Stefan Kirsch
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Abstract
The invention relates to a process for applying at least two chemically different, flowable media, particularly solutions of polymers, dispersions or combinations thereof as adhesives, coating materials or coatings. By means of a multiple cascade die 1 at least two chemically different, flowable media 30, 32 are applied to web-form substrates 20; 40, 41 continuously in one operation. The total amount within a multilayer application 51 is between 2 g per m2 to 200 g per m2. The ratio of the individual layers 31, 33 within the multilayer application 51 to one another is between 0.1 to 100.
Claims11
A process for applying at least two chemically different flowable media, particularly aqueous solutions of polymers, dispersions or combinations thereof as adhesives and coating materials, or coatings, comprising the following steps:
- a) applying at least two chemically different flowable media to web-form substrates continuously in one operation using a multiple cascade die (1),
- b) the total amount of the multilayer application is between 2 g/m2 to 200 g/m2 and
- c) the ratio of the individual layers within the multilayer application to one another is between 0.1 to 100.
Dependencies are inferred from the claim text.