FIELD: manufacturing technology.
SUBSTANCE: invention relates to filler compositions (versions) as a nucleating agent for polyolefins. Additive compositions (versions) contain one or more phosphate ester salts and one or more aromatic carboxylate salts containing phosphate ester anions, corresponding to a certain structure, aromatic carboxylate anions, optionally cycloaliphatic dicarboxylate anions, aluminum (III) cations, sodium cations, optionally calcium cations, optionally lithium cations and optionally zinc (II) cations. Anions are present in the additive composition in certain molar percentage ratios. Cations are also present in the filler composition in certain molar percentage ratios.
EFFECT: invention enables to obtain thermoplastic polymer polyolefin compositions which exhibit a more desirable combination of high temperature of the repeated crystallization peak of the polymer, controlled shrinkage and high rigidity.
29 cl, 8 tbl, 4 ex
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