Patent ID: 8536276

Claim:
A process for preparing a pressure-sensitive adhesive comprising the crosslinking product of at least one polymer and at least one kind of functionalized particles, the polymer having reactive centres, the functionalized particles having at least one nonpolymeric base unit; the nonpolymeric base unit having a surface modification, the surface modification of the nonpolymeric base unit having at least one kind of functional groups Z, wherein functional groups Z, under conditions during preparation and processing of the polymer and/or of a noncrosslinked pressure-sensitive adhesive, do not enter into any reaction with the reactive centres of the polymer, wherein the process comprises the following steps: decomposition or dissociation of at least some of the functional groups Z of the particles, by supply of at least one of thermal energy and sonic energy, overcoming the activation energy of conversion, into functional groups X of the particles which are capable, under appropriate process conditions, of entering into a reaction with the reactive centres of the polymer, and forming the crosslinking product by subsequently reacting the functional groups X of the particles with the reactive centres of the polymer under appropriate process conditions.