Polymer, Vol.35, No.9, 2001-2003, 1994
Radiation-Cured Polyurethane Methacrylate Pressure-Sensitive Adhesives
New oligomeric polyurethanes have been prepared from polyether diols, chain extender and 4,4’-dicyclohexylmethane diisocyanate or 4,4’-diphenylmethane diisocyanate, which are terminated with a mixture of 2-hydroxyethyl methacrylate (2-HEMA) and non-functional terminators such as n-propanol or technical hydroabietyl alcohol. The oligomers may be cured by electron beam or u.v. radiation to give pressure-sensitive adhesives.