An ethylene cyclic olefin polymer, particularly an ethylene/norbornene copolymer and an ethylene/norbornene/alpha olefin terpolymer resin, of improved toughness and processibility for film production. This invention provides ethylene based resins which are processible like an LLDPE but which are significantly improved with respect to their capability to be fabricated into a film layer, particularly by a blown bubble extrusion technique. Films prepared of the resins of this invention are significantly improved with respect to certain of their film properties, such as tear strength, without detracting from the beneficial properties that an LLDPE-like resin otherwise provides to a film. Molding application of the above E/NB copolymers and E/NB/O terpolymers is also disclosed.
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机译:具有改善的韧性和用于膜生产的可加工性的乙烯环状烯烃聚合物,特别是乙烯/降冰片烯共聚物和乙烯/降冰片烯/α-烯烃三元共聚物树脂。本发明提供了像LLDPE一样可加工的基于乙烯的树脂,但是其在制造成膜层的能力方面得到了显着改善,特别是通过吹塑气泡挤出技术。由本发明的树脂制备的膜在某些膜性能如撕裂强度方面得到了显着改善,而没有降低类LLDPE树脂对膜提供的有益性能。还公开了上述E / NB共聚物和E / NB / O三元共聚物的模塑应用。
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