reinforced, flame-retardant resin material with improved electrical properties

摘要

A reinforced fire retardant resin composition of improved electrical characteristics, which comprises:PPA BASE RESIN OF POLYTETRAMETHYLENE TEREPHTHALATE ALONE OR IN ADMIXTURE WITH AT LEAST ONE OTHER POLYMER, A FIRE RETARDANT COMBINATION OF A HALOGEN CONTAINING COMPOUND AND AN ANTIMONY COMPOUND, HYDRATED SILICA AND A REINFORCING FILLER, WHEREIN SAID HALOGEN CONTAINING COMPOUND IS PRESENT IN AN AMOUNT OF 3-50 PARTS BY WT. PER 100 PARTS BY WEIGHT OF SAID BASE RESIN, SAID ANTIMONY COMPOUND IS PRESENT IN AN AMOUNT SUCH THAT THE WEIGHT RATIO OF THE HALOGEN CONTAINING COMPOUND TO THE ANTIMONY COMPOUND RANGES FROM 0.25 TO 6 AND THE CONTENT OF SAID HYDRATED SILICA RANGES FROM 0.5 - 10 WT. % OF THE TOTAL RESIN COMPOSITION.