B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/140
B32B 27/08 (2006.01) B32B 27/32 (2006.01) C08L 23/04 (2006.01) C08L 51/06 (2006.01)
Patent
CA 1172552
Abstract of the Disclosure The invention relates to a laminated multi-layer structure composed of (A) a layer of a graft-modified ethylene resin grafted with an unsaturated carboxylic acid or a functional derivative thereof and (B) an oxygen- or nitrogen-containing poler resin layer or a metal layer in contact with layer (A). Layer (A) consists of (i) 1 to 100% by weight of said graft-modified ethylene resin derived from an ethylene polymer which contains 0 to 15 mole % of at least one alpha-olefin having 3 to 30 carbon atoms as a comonomer and has an MI2/[n]-8.77 ratio in absolute value of not less than 15 and a density of 0.88 to 0.98 g/cm3, and (ii) 99 to 0% by weight of an unmodified ethylene polymer containing 0 to 50 mole % of at least one alpha-olefin having 3 to 30 carbon atoms as a comonomer and having an MI2/[n]-8.77 ratio in absolute value of not less than 15 and a density of 0.86 to 0.96 g/cm3, and 0.96 g/cm3. Layer (A) has (a) an ethylene content of not less than 80 mole %, (b) a content of the carboxylic acid or the derivative thereof of 0.01 to 10% by weight based on the weight of the layer (A), (c) a density of 0.88 to 0.98 g/cm3, and (d) an MI10/MI2 ratio of from 5 to 18. The laminated multi-layer structure has greatly improved peel strength between layer (A) and (B), greatly improved impact strength, good rigidity and other mechanical properties and is useful in the field of packaging.
371879
Mitsui Chemicals Incorporated
Smart & Biggar
LandOfFree
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