Siloxane compounds and their use as homogenizer in release agents with matting effect for producing moldings from plastics with matt surfaces

1. A release agent formulation with a matting effect which comprises at least one silicone oil, at least one matting agent and at least one siloxane compound wherein the siloxane compound has the general formula (I)

where

R is an unbranched or branched hydrocarbon radical having from 16 to 50 carbon atoms;

a is a value from 0.8 to 1.5;

b is a value from 0.8 to 3.

2. The release agent formulation of claim 1 , wherein a has a value of from about 1.0 to about 1.3.

3. The release agent formulation of claim 1 , wherein R is a hydrocarbon radical whose average number of carbon atoms is 30.

4. The release agent formulation according to claim 1 wherein the siloxane compound is present in an amount from about 0.5 to about 5% by weight, based upon the total weight of the formulation.

5. The release agent formulation according to claim 4 , wherein the siloxane is present in an amount from about 1.5 to about 4% by weight, based upon the total weight of the formulation.

6. The release agent formulation according to claim 1 wherein the matting agent is a wax, silicate or synthetic polymer particles.

7. A method for preparing matted, molded plastics using a mold which comprises spraying onto a side of the mold the release agent formulation according to claim 1 and adding the plastic to the mold.

8. The method according to claim 7 , wherein the plastic is a polyurethane foam.

9. A method for preparing matted, molded plastics using a mold which comprises spraying onto a side of the mold a release agent formulation according to claim 1 .

10. A matted, molded plastic obtained by the process according to claim 9 .

11. The matted, molded plastic according to claim 10 , wherein the plastic is polyurethane.