Patent ID: 8377359

Claim:
A process for the production of compact cellulose-containing moldings by reacting organic polyisocyanates with cellulose in the presence of mold release agents in an open or closed mold, wherein the mold release agents are siloxane compounds containing aminopropyl groups having the general formula (I) in which R 1 is CH 3 and/or R 2 , R 2 is —(CH 2 ) x —NH—R 3 and/or —(O) y —(CH 2 ) x —NH—R 3′ , R 3 and R 3′ , independently of one another, may be H or —(CH 2 ) x —NH 2 , R 4 is —(CH 2 ) x —NH—(CH 2 —CH 2 —O) z —R 5 where R 5 is an aryl or alkyl radical n is from 50 to 1000, m is from 1 to 20, k is from 0 to 20, x is from 1 to 20, y is 0 or 1, z is from 1 to 20, and wherein said release agent is stable, non-volatile and does not degrade thermally or oxidatively to dark colored compounds at a temperature up to 270° C., with the proviso that at least one amino-functionalized radical is present.