abstract |
A polyester-grafted polyamide comprising a polyamide as the trunk polymer and a thermoplastic polyester as the grafting polymer and having a number-average molecular weight of 50,000 to 500,000 in terms of standard polymethyl methacrylate according to gel permeation chromatography using 1,1,1,3,3,3-hexafluoro-2-propanol. It is useful as a modifier for polyester and polyamide. |