The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 1996
Filed:
May. 26, 1995
Toshiyuki Hirose, Kuga-Gun, JP;
Shigetoshi Nishijima, Kuga-Gun, JP;
Yohzoh Yamamoto, Kuga-Gun, JP;
Hideshi Kawachi, Kuga-Gun, JP;
Michio Tsugawa, Kuga-Gun, JP;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
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.