摘要:
A method of partially applying a hot-melt pressure sensitive adhesive composition to a backing material, in which the hot-melt pressure sensitive adhesive composition is applied by an applicator to a moving transfer means in such a way that a film formed from the hot-melt adhesive composition comprises voids; the film applied to the transfer means is subsequently applied to a backing material, which is likewise moving.
摘要:
Process for producing a flexible, planar carrier coated with a porous adhesive layer, characterized in thata) a flowable adhesive composition is applied to an intermediate carrier having the following properties:it has a microscopically undulating, pleated, fissured or furrowed surfacethe adhesive composition can be easily detached from the surface thereofit is essentially air-impermeable,b) the microscopic air or solvent inclusions resulting, after coating the intermediate carrier, between the adhesive composition and the intermediate carrier are expanded by increasing the temperature until the surface of the adhesive composition bursts, andc) the adhesive composition is subsequently transferred from the intermediate carrier onto the final carrier.
摘要:
Wound covering which is characterized in that it is made of a hydrophobic bacteria-adsorbing material which comprises an antimicrobial active compound which is not released into the wound. It is preferably made of a mixture of hydrophobic fibres and fibres comprising the antimicrobial active compound.