| 摘要 |
<p>1417535 Polyester coated wire GOODYEAR TIRE & RUBBER CO 22 May 1974 [14 June 1973] 22785/74 Heading B2E [Also in Division C3] Electrical conducting wire is extrusion coated with a flame retardant polyester composition comprising (a) a copolyester, optionally blended with a homopolyester, having an intrinsic viscosity of at least 0.5, (b) from 5 to 10% by weight, based on the total weight of the composition, of polyvinyl chloride, and (c) from 5 to 10% by weight, based on the total weight of the composition, of antimony trioxide, boron trioxide, tetrabromophthalic anhydride, tetrachlorophthalic anhydride or chlorendic acid anhydride. The Examples describe coating wire with compositions comprising (a) a blend of polytetramethylene terephthalate or polyethylene terephthalate with a copolyester derived from isophthalic acid, terephthalic acid, sebacic acid and tetramethylene glycol, (b) polyvinyl chloride and (c) tetrabromophthalic anhydride or antimony trioxide or a mixture of antimony trioxide and chlorendic acid anhydride.</p> |
