Polyolefin multilayer laminate, vessel and packaging material

Details Polyolefin multilayer laminate, vessel and packaging material Polyolefin multilayer laminate, vessel and packaging material

1995-05-26

1996-07-02

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428218, 428516, 428 3691, 428910, 428517, 428520, B29D 2200, B29D 2300

Patent

active

055320309

ABSTRACT:
A polyolefin multilayer laminate in which a first layer (A) made of a cycloolefin-based resin, such as an ethylene/cycloolefin random copolymer resulting from copolymerization of ethylene and a cycloolefin represented by the formula (1) given below, or a cycloolefin-based resin blend and a second layer (B) made of an olefin (co)polymer or a composition containing it are laminated. This laminate can be used as a packaging material which is superior in the interlayer adhesion, shapability, moistureproof property, transparency, flexibility, easiness of hand-cutting, heat-sealability and dead-hold property. Formula (1) comprises ##STR1## in which n and q are 0 or 1, m is 0 or any positive integer, R.sup.1 -R.sup.18 and R.sup.a and R.sup.b denote each H, a halogen atom or a hydrocarbon group, wherein R.sup.15 -R.sup.18 may form, by combining with each other, a monocyclic or polycyclic ring, which may have double bond(s), and wherein R.sup.15 -R.sup.16 may have terminal-located alkylidene group.

REFERENCES:
patent: 4874808 (1989-10-01), Minami et al.
patent: 5298551 (1994-03-01), Yamamoto

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