FIELD: chemistry.
SUBSTANCE: invention relates to the use acid-resistant coated pigments in PVC. Pigments which are selected from the group of acid-soluble pigments consisting of Fe2O3, FeOOH, Fe3O4, iron manganese mixed oxides, ZnO, zinc ferrites and a combination of two or more of these pigments, and which are coated with pentaerythritol as an organic compound melting at T > 200 °C, that ensures acid resistance as a color pigment or a white pigment in the synthetic material PVC.
EFFECT: technical result is use of the pigments in PVC and avoiding the formation of burns at the thermoplastically deformed PVC.
12 cl, 1 tbl, 2 ex
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