A resin composition comprises a copolymer (A) comprising ethylene as a
major component produced with a single-site catalyst, and an
ethylene-vinyl alcohol copolymer (B) having an ethylene content of 20-60
mol. % and a degree of hydrolysis of 95% or above, the resin composition
satisfying the equation (1):
1/99.ltoreq.{weight of (A)}/{weight of (B)}.ltoreq.<99/1 (1)
A preferred resin composition comprises a copolymer (A) which has a density
of 0.90-0.94 g/cm.sup.3 and the resin composition further comprises a
carboxylic acid-modified polyolefin (C) and satisfies the equations (2)
and (3):
60/40.ltoreq.{weight of (A)}/{(weight of (B)}.ltoreq.: 99/1 (2)
0.1/99.9.ltoreq.X.ltoreq.: 20/80 (3)
wherein X={weight of (C)}/{total weight of (A) and (B)}.
Another preferred resin composition comprises a copolymer (A) which has a
density of 0.85-0.90 g/cm.sup.3, and which satisfies the equation (5):
1/99.ltoreq.{weight of (A)}/{weight of (B)}.ltoreq.40/60 (5)
The resin composition has superior melt moldability, gas barrier
properties, flexural fatigue resistance, and impact resistance. It can be
used in the preparation of a multilayered structure to impart a good
appearance, delamination resistance, transparency, impact resistance, and
gas barrier properties to the structure.
Μια σύνθεση ρητίνης περιλαμβάνει copolymer (A) περιλαμβάνοντας το αιθυλένιο ως σημαντικό συστατικό που παράγεται με έναν καταλύτη ενιαίος-περιοχών, και αιθυλένιο-βινυλίου copolymer οινοπνεύματος (B) που έχει μια περιεκτικότητα σε αιθυλένιο 20-60 mol.% και έναν βαθμό υδρόλυσης 95% ή ανωτέρω, η σύνθεση ρητίνης που ικανοποιεί την εξίσωση (1): 1/99.ltoreq.{weight (A)}/$l*{weight (B)}.ltoreq.
