Flame retardant polyamide compositions

摘要

Predominately amino terminated phosphonamide oligomers and their use as flame retardant additives in polyamides and copolyamides without detracting from melt processability are described herein. Other important properties such as strength, modulus, dyeing and thermal stability are maintained.

主权项

1. A polymer composition comprising at least one phosphonamide oligomer of Formula I: wherein: R is a C1 to C20 alkyl or, optionally substituted aryl group; X is an aromatic or aliphatic group; Z is: n is an integer of from 1 to about 20; and one or more polyamides, copolyamides or combinations thereof.