Liner for the protection of adhesive masses

Abstract

In the case of a liner for the protection of adhesives, the protective effect is to be enhanced in respect of permeates originating from the environment and also permeates included during winding or stacking and other processing steps. This enhancement is accomplished through provision of a liner which comprises at least one adhesive release layer and at least one layer of a getter material capable of sorbing at least one permeable substance. The getter material is selected from lithium, beryllium, boron, sodium, magnesium, silicon, potassium, calcium, manganese, iron, nickel, zinc, gallium, germanium, cadmium, indium, cesium, barium, boron oxide, calcium oxide, chromium oxide, manganese oxide, iron oxide, copper oxide, silver oxide, indium oxide, barium oxide, lead oxide, phosphorous oxide, sodium hydroxide, potassium hydroxide, metal salts, metal hydrides, anhydrides of mono- and polycarboxylic acids, sodium dithionite, carbohydrazide, ascorbates, gallic acid, zeolites, carbon nanotubes, activated carbon, and carbodiimides, and mixtures of two or more substances selected from the above.

Description

technical field [0001] The invention relates to the technical field of liners for protecting adhesives, eg for adhesive tapes. A new liner of this kind is proposed, characterized by an enhanced protective function, more specifically, an enhanced protective function against permeable substances. The invention also relates to an adhesive at least partially covered with the liner, as well as a method for protecting the adhesive and the use of an absorbent material in the liner. Background technique [0002] Optoelectronic devices are being used in commercial products with increasing frequency, or are close to being introduced on the market. Such devices comprise organic or inorganic electronic structures such as organic, organometallic or polymeric semiconductors or combinations of these. Depending on the desired application, the products are rigid or flexible in form, the demand for flexible devices is increasing. Such devices are often formed by printing techniques such as...

AI Technical Summary

Problems solved by technology

A specific disadvantage of this approach is the increased cost and inconvenience of packaging

[0018] There is a particular problem in the packaging of sheet adhesives (i.e. adhesive tapes or adhesive sheets): when they are stacked in shape or wound to form rolls, they contain gases (e.g. air) which ) is not exchanged with other gas spaces remaining in the package

However, this approach is ineffective against permeates present in the liner or contained between the liner and adhesive

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