Patent ID: 8871874

Claim:
A thermoplastic melt-mixed composition comprising: a) 15 to 89.5 weight percent of a poly(hexamethylene hexanediamide); b) 0.5 to 10 weight percent of a poly(amino acid)-polyol compound provided by reacting: b1) 90 to 10 weight percent of one or more amino acids selected from the group consisting of primary amino acids and secondary amino acids and combinations of these; said amino acid having no more than one hydroxyl group; b2) 10 to 90 weight percent of one or more polyepoxy compounds comprising at least two or more epoxy groups; the polyepoxy compounds having an epoxide equivalent weight of 43 to 4000 g/equivalent as determined by calculation, or if one or more of the polyepoxy compounds is an oligomer, by titration using ASTM D1652-11 method; and a number average molecular weight (Mn) of less than 8000; wherein the weight percent of component b) is based on the total weight of b1) and b2); said poly(amino acid)-polyol compound having a range of at least 10 percent conversion of epoxy equivalents of component (b1) up to, but excluding, the gel point of the components b1) and b2) as determined with 1 H NMR analysis of the poly(amino acid)-polyol; c) 10 to 60 weight percent of reinforcing agent; d) 0 to 30 weight percent polymeric toughener; and e) 0 to 10 weight percent further additives; wherein the weight percentages a), b), c), d), and e) are based on the total weight of the thermoplastic melt-mixed composition.