Process for producing moldings of synthetic material based on poly (vinyl alcohol) by thermoplastic methods.

摘要

Process for the production of shaped plastics material by thermoplastic processing of at least one polymer (A), at least one plasticizer, and optionally water and / or other additives, wherein the polymer (A) comprises a.) 15.0 99, 9% by weight of structural units of formula (1) wherein R1 is hydrogen or methyl, b.) 0, 0 to 50, 0% by weight of structural units of formula (2) wherein R2 represents an alkyl radical having 1 to 6 carbon atoms, c.) 0, 0 to 50, 0% by weight of structural units of formula (3) wherein R3, R4, R5 and R6 are each independently each other, radicals with a molecular weight in the range of 1 to 500 g / mol, in each case based on the total weight of the polymer (a), wherein the polymer (a) and the plasticizer are added without premixing in the extruder and that the proportion of water is less than 2% by weight, based on poly (vinyl alcohol).