MASTERBATCH AND METHOD FOR OBTAINING POLYAMIDE RESIN COMPOSITION WITH MASTERBATCH APPLICATION Russian patent published in 2016 - IPC C08L77/06 C08G69/26 C08J3/22 C08K5/09 

FIELD: chemistry.

SUBSTANCE: invention relates to masterbatch for polyamide resin composition, used for manufacturing packing material, petrol-impermeable material, fibrous material, materials for hoses, packing bottles, as well as to method for obtaining polyamide resin composition with application of said masterbatch. Masterbatch contains polyamide (X), including diamine unit, consisting by 70 mol % or more of metaxylynediamine unit, and dicarboxylic acid unit, and alkali compound (A). Average diameter of particles of alkali compound (A), contained in masterbatch, equals 50 mcm or less. Number of particles with particle diameter larger than 80 mcm per 5 square millimetres of masterbatch transverse section equals 1.5 particles or less. The sun (m) of values, obtained by multiplication of molar concentration of alkali metal atom and molar concentration of alkali earth metal atom, each contained per 1 g of masterbatch, by valences of said metals, respectively constitutes 60 mcmol/g or higher and 1710 mcmol/g or lower.

EFFECT: provision of possibility to obtain polyamide resin composition, which has good outlook, good colour tone and forms fewer gels, when processed by moulding.

9 cl, 4 tbl, 18 ex