Production of multilayered thin plasters comprising a carrier material based on polyurethane
AssigneeBeiersdorf AG
InventorsHolger Kartheus, Andreas Beckmann, Jürgen Christian Quandt, Klaus Ruhnau, Günther Sachau, Thomas Möller
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Abstract
A process for producing multilayered thin plasters with a carrier material based on polyurethane with the steps of applying at least one layer of uncured polyurethane to a transfer layer, applying an adhesive composition to a release layer, laminating the uncured polyurethane on the transfer layer and the adhesive composition on the release layer together using a doctor blade, passing the laminate through nip rolls downstream of the doctor blade, and rolled out the uncured polyurethane and adhesive composition to the ultimate thickness.
Claims6
A process for producing multilayered thin plasters comprising a carrier material based on polyurethane, which comprises
- a) applying at least one layer of an uncured polyurethane to a transfer layer,
- b) applying an adhesive composition to a release layer,
- c) laminating the uncured polyurethane on the transfer layer and the adhesive composition on the release layer together using a doctor blade,
- d) passing the laminate downstream of the doctor blade into a roll nip in which the polyurethane and the adhesive composition are rolled out to the ultimate thickness.
Dependencies are inferred from the claim text.