Patent ID: 7294661

Claim:
A flame retardant polyamide resin composition, comprising: (a) about 20 to about 90 weight percent of an aromatic polyamide that is derived from about 5 to about 75 mole percent of aromatic monomers; (b) about 10 to about 40 weight percent of a flame retardant comprising one or more of a phosphinate of the formula (I), a disphosphinate of the formula (II), or polymers of these wherein R 1 and R 2 are identical or different or are C 1 -C 6 alkyl, linear or branched, and/or aryl; R 3 is C 1 -C 10 -alkylene, linear or branched, C 6 -C 10 -arylene, -alkylarylene or -arylalkylene; M is one or more of calcium ions, magnesium ions, aluminum ions and zinc ions, m is 2 to 3; n is 1 or 3; x is 1 or 2; and (c) 0 to about 60 weight percent of inorganic reinforcing agent and/or filler; (d) about 0.5 to about 8 weight percent of a synergist comprising boehmite, the above stated percentages being based on the total weight of the composition.