Verfahren zur Herstellung orientierter Acrylathotmelts

摘要

Preoriented anisotropic contact adhesive compositions based on acrylate and/or methacrylate can be oriented on crosslinking with UV radiation. A contact adhesive composition (CAC) is based on at least 50 wt.% of acrylic monomer from a group of compounds of formula (I): R1 = H or Me; and R2 = H or Me or is selected from a group of optionally branched 2-30C alkyl hydrocarbons of mean Mw = at least 200,000 g/mole. which on application to a support as a hot melt has a preferred direction, which in accordance with the D test via the back-shrinkage (sic) can be determined in a free film and is at least greater than 3% (sic), where the CAC is crosslinked by UV irradiation. An Independent claim is included for a contact adhesive composition (CAC) obtained as below.