| abstract |
Polyamide resin compsn. contains (a) melamine cyanurate, and opt. (b) a Cu cpd., (c) a Cu cpd. and an alkali metal halide, (d) a Cu cpd., an alkali metal halide and a Sn cpd., (e) a bisamide of formula R2-CO-NR4-R'-NR5-CO-R3 or R2-NR4-CO-R1-CO-NR5-R3, (where R', R2 and R3 are hydrocarbon residues; and R4 and R5 are H or hydrocarbon residues) and (f) a bis-ureido cpd. of formula R7-NHCONH-R6-NHCONH-R8, (where R6 is an aromatic hydrocarbon residue, and R7 and R8 are alkyl). The compsn. has excellent appearance and good flame resistance. The additives do not bleed from the compsn. They are free from halogem, and difficulties of toxicity or metal corrosion of not occur. Precision articles can be obtd. |