Patent ID: 7491763

Claim:
A polyamide composition comprising (a) a polyamide, (b) at least one phosphorus compound selected from the group consisting of phosphoric acids, phosphorous acids, hypophosphorous acids, metal phosphates, metal phosphites, metal hypophosphites, phosphoric esters, and phosphorous esters, and (c) a soluble metal aluminate represented by the general formula (M 2 O) x (Al 2 O 3 ) y (wherein X+Y=1 and M is a Group 1 metal of the Periodic Table), wherein the value of Y/X is 0.35≦Y/X<1.0; and the molar ratio of polyvalent metal to monovalent metal in the composition (polyvalent metal/monovalent metal) is from 0.25 to 1.0.