Releasable compositions based on polyacetals

A curable composition that is liquid at room temperature, comprising:

• A) at least one curable resin component selected from a group consisting of epoxy-containing compounds, oxetanes, vinyl ethers, (meth)acrylates, silanes and combinations thereof;
• B) at least one curing agent and/or one initiator for the polymerization of the at least one curable resin component;
• and
• C) at least one polyacetal-bridged resin component that is obtained by reacting at least one at least difunctional vinyl ether (c1) with at least one at least difunctional alcohol (c2) to form a polyacetal intermediate product having more than two terminal vinyl ether groups or more than two terminal hydroxyl groups, and
• a) reacting the polyacetal intermediate product having more than two terminal vinyl ether groups with at least one compound of mixed functionality (c3) having at least one hydroxyl group or one amine group and at least one further functional group of resin component (A) or a group that can be polymerized therewith;
• or
• b) reacting the polyacetal intermediate product having more than two terminal hydroxyl groups with a hydroxyl group-reactive linker and further reacting it with the compound of mixed functionality (c3) or a difunctional resin component (A);
• or
• c) reacting the polyacetal intermediate product having more than two terminal hydroxyl groups with a compound of mixed functionality (c3) having at least one isocyanate group and another functional group of resin component (A) or a group that can be polymerized therewith;
• wherein at least one of the at least difunctional vinyl ether (c1) and the at least difunctional alcohol (c2) is trifunctional or of a higher functionality.