| 摘要 |
The invention relates to a process for the production of compact cellulose-containing moldings by reacting optionally modified organic polyisocyanates with cellulose, in particular lignocellulose, in the presence of mold release agents in an open or closed mold, wherein the mold release agents used are siloxane compounds containing aminopropyl groups and of the general formula (I) (see formula I) in which R1 is CH3 and/or R2, R2 is -(CH2)x-NH-R3 and/or -(0)y-(CH2)x-NH-R3', R3 and R3', independently of one another, may be H or -(CH2)x-NH2, R4 is -(CH2)x-NH-(CH2-CH2-O)z-R5 where R5 is an aryl or alkyl radical n is from 50 to 1000, m is from 0 to 20, with the ratio m : n = 0 to 0.4, k is from 0 to 20, x is from 1 to 20, y is 0 or 1, z is from 1 to 20, with the proviso that at least one amino-functionalized radical is present. |
