| 摘要 |
<p>The invention relates to a rubber composition with improved heat resistance and a polynorbornene base including a mixture of at least 50% by weight of polynorbornene and at most 50% by weight of another rubber, said mixture having been vulcanized by an effective quantity of at least one compound: (I) where R1, R2 = CHnX3-n, with X = F, Cl or Br and n = integral from 0 to 2. The invention also relates to a thermoplastic composition including 10 - 90 parts by weight (pp) of at least one crystal polymer (A) with an olefin base, from 90 - 10 pp of a mixture (B) of at least 50% by weight of polynorbornene and at most 50% by weight of another rubber, and a quantity of polynorbornene plasticator which is sufficient to lower its vitreous transition temperature to that of the range of rubber, the sum of (A) and (B) being equal to 100 pp and (B) being vulcanized by means of an effective quantity of at least one compound (I). Application: manufacture of finished products and industrial articles through extrusion, extrusion-blow moulding, injection moulding and compression moulding.</p> |
