foerfarande foer framstaellning av polyetylenprodukter som har hoeg draghaollfasthet och elasticitetsmodul och laog krypning och sao erhaollna produkter.

摘要

Polyethylene articles having a high tensile strength above 2.0 GPa, a modulus above 70 GPa and a creep below 3 x 10-7 sec-1 are obtained via thermoreversible gelation of a solution of polyethylene with a Mv above 5 x 105 kg/kmole, followed by ultradrawing. As polyethylene a copolymer or a blend is used containing 2-20 lower alkyl side chains per 1000 carbon atoms.