ZUSAMMENSETZUNG UND VERFAHREN ZUR HERABSETZUNG DER KLEBRIGKEIT VON ETHYLEN/ALPHA-OLEFIN-COPOLYMEREN.

摘要

PCT No. PCT/FR90/00225 Sec. 371 Date Jan. 28, 1991 Sec. 102(e) Date Jan. 28, 1991 PCT Filed Mar. 30, 1990 PCT Pub. No. WO90/12064 PCT Pub. Date Oct. 18, 1990.The process, which makes it possible to reduce the adhesive nature of a partially crystalline copolymer (E) of ethylene and at least one alpha-olefin with a density of between 0.865 and 0.900 approximately, and to increase its resistance to crushing, consists in mixing closely said ethylene copolymer with at least one non-atactic propylene polymer (P) with a fluidity index (measured according to the ASTM D 1238 standard, condition L) between 35 and 200 dg/min. approximately, in a proportion of between 22 to 50 parts by weight approximately for 100 parts by weight of ethylene copolymer.