FIELD: polymer materials.
SUBSTANCE: invention relates to concentrates containing biocide compounds and polyester resin-based carriers. Invention aims at preparing biocide-containing polyester concentrates, which could be further introduced into polymer substrates and thereby prevent decoloration of thus obtained polymer compositions with biocide activity. Biocide-containing polyester concentrate is proposed consisting of biocide, 1-75%, and polyester carrier, 99-25%, and also decoloration-resistant polymer composition consisting of polymer substrate and efficient biocide amount of above concentrate functioning as decoloration stabilizer of polymer substrate. Invention further proposes a method for preparation of such polymer composition and a method for stabilization of polymer substrate.
EFFECT: achieved decoloration resistance of polymer substrate.
13 cl, 3 tbl, 3 ex
