| 摘要 |
<p>An electrically insulating film having a total halogen content of about 1% to about 8%, comprising a resin component containing: a) from 0 to about 40 parts of a rubber selected from EP or EPDM rubber, b) correspondingly, from about 60 to about 100 parts of an ethylene vinyl acetate polymer, c) from about 20% to about 40% based on said resin component, of a flame retardant system comprising i) from about 5 to about 25% of a bromine containing flame retardant, ii) from about 1.5% to about 10% of an antimony containing flame retardant, and iii) from 1% to about 20% of a flame retardant selected from granular metal oxide hydrates, wherein said flame retardant system has a ratio of metal oxide hydrate to bromine of no more than about 3; said film being free of vinyl chloride wherein a nonoriented film self-extinguishes in less than about 5 seconds, has an elongation at break of at least about 500%, a dielectric strength of at least about 1200 V/Mil, and a stress-strain curve having a wholly positive slope.</p> |
