Patent ID: 8759429

Claim:
A flame-retardant copolyetherester composition comprising: (a) at least one copolyetherester; (b) 5-35 wt % of at least one halogen-free flame retardant; (c) 0.1-20 wt % of at least one nitrogen-containing compound; (d) 0.1-10 wt % of at least one aromatic phosphate; and (e) 0.1-10 wt % of at least one novolac resin, with the total wt % of all components of the copolyetherester composition totaling to 100 wt %, wherein the flame-retardant copolyetherester composition passes the UL1581 flammability standard, and wherein the at least one halogen-free flame retardant is selected from the group consisting of phosphinates of the formula (I), disphosphinates of the formula (II), and combinations or polymers thereof with R 1 and R 2 being identical or different and each of R 1 and R 2 is independently selected from hydrogen, a linear, branched, or cyclic C 1 -C 6 alkyl group, or a C 6 -C 10 aryl; R 3 being selected from a linear or branched C 1 -C 10 alkylene group, a C 6 -C 10 arylene group, a C 6 -C 12 alkyl-arylene group, or a C 6 -C 12 aryl-alkylene group; M being selected from the group consisting of calcium ions, aluminum ions, magnesium ions, zinc ions, antimony ions, tin ions, germanium ions, titanium ions, iron ions, zirconium ions, cerium ions, bismuth ions, strontium ions, manganese ions, lithium ions, sodium ions, potassium ions and combinations thereof; and m, n, and x each being the same or different integer from 1 to 4.