| abstract |
The invention relates to a process for the production of teilchenfoermigen substances plates in which a solidifiable teilchenfoermiges organic material is brought into contact with a polyisocyanate composition and formed under heat and pressure to form sheets. The aim of the invention is a simplification of the manufacturing process, wherein the task is to be solved in a rational manner to prevent sticking of the plates to the pressing heating plates. For this purpose, the particulate material according to the invention is brought into contact, in addition to the treatment with the polyisocyanate composition, with 0.1 to 20 parts of one or more particular phosphates. Examples of the phosphates used are mono-O-octyl, mono-O-nonyl, mono-O-heptadecyl or mono-O-docosenyl phosphate, O, O-di (octyl) -, O, O-di (nonyl) , Tetraoctyl or tetra (heneikosyl) phosphate. |