FIELD: chemistry.
SUBSTANCE: invention relates to compositions prepared from polyesters and polyamides for making articles such as sheets, films, fibres, bottles and articles made via pressure casting. The composition contains crystallisable polyester and polyamide dispersed in the polyester. The polyester consists of 85% acid fragments obtained from terephthalic acid, 2,6-naphthalene dicarboxylic acid and diesters thereof. The polyamide consists of a repeating link of aminocaproic acid and a repeating A-D link. A is a residue of adipic acid, isophthalic acid, terephthalic acid, 1,4-cyclohexane dicarboxylic acid or naphthalene dicarboxylic acid or mixtures thereof, and D is a residue of m-xylene diamine, p-xylene diamine, hexamethylene diamine, ethylene diamine or 1,4-cyclohexane dimethyl amine or mixtures thereof. The polyamide has triamine content after hydrolysis less than 0.22, and content of carboxyl outside the range of 20-80% of total amount of terminal groups.
EFFECT: invention enables to obtain partitioned. granules without increasing relative viscosity and without gel formation.
14 cl, 2 tbl, 4 dwg, 16 ex
