Production of separation materials for adhesive tapes

1. A process for producing a separative layer of a release liner, based on a formulation comprising at least one alkenyl-substituted organopolysiloxane, wherein the formulation is present in solution, the process comprising:

adding a metathesis catalyst to the solution;

coating the solution provided with the metathesis catalyst onto a carrier material, wherein, on the carrier material, a metathesis reaction of the alkenyl-substituted organopolysiloxane takes place for crosslinking the formulation,

wherein the formulation further comprises a silicone MQ resin, composed of R 3 Si 1/2 units, as M units, and SiO 4/2 units, as Q units, wherein the substituents R in the M units are methyl groups.

2. The process according to claim 1 , further comprising:

supplying thermal energy necessary for the metathesis reaction to the formulation in the course of drying.

3. The process according to claim 1 , wherein the process is carried out in the absence of hydrosilanes and hydrosiloxanes.

4. The process according to claim 1 , wherein the metathesis catalyst is a metal carbene complex.

5. The process according to claim 4 , wherein the metathesis catalyst is a ruthenium-based catalyst.

6. The process according to claim 1 , wherein the metathesis catalyst is present in an amount of 0.01 to 10 percent by weight, based on the total weight of the formulation.

7. The process according to claim 6 , wherein the metathesis catalyst is present in an amount of 0.1 to 5 percent by weight, based on the total weight of the formulation.

8. A separative layer of a release liner, wherein the separative layer of the release liner is obtained by the process according to claim 1 .

9. The process according to claim 7 , wherein the metathesis catalyst is present in an amount of 0.1 to 2 percent by weight, based on total weight of the formulation.