C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 61/08 (2006.01) B32B 7/12 (2006.01) B32B 27/32 (2006.01) B65B 51/00 (2006.01) B65D 75/36 (2006.01) C08L 65/00 (2006.01)
Patent
CA 2096079
Disclosure is made for a sheet or film for PTP or blister package excellent in the moistureproof property and transparency and superior also in the processibility by vacuum or pnuematic forming. The sheet or film has at least a layer made of a non- crystalline polyolefin resin selected from the group consisting of (A-a) a cycloolefin random copolymer which is made from ethylene and a cycloolefin having a molecular structure represented by the general formula (1) given below, with an intrinsic viscosity [ .eta. ] of 0.01 - 10 dl/g determined in decalin at 135 °C and a softening temperature (TMA) of 50 - 200 °C , (A-b) a (co)polymer, obtained from a ring-opening polymerization of a cycloolefin represented by the general formula (1) given below, or a hydrogenation product thereof, which has an intrinsic viscosity of 0.01 - 10 dl/g determined in decalin at 135 °C and a softening temperature (TMA) of 50 - 200 °C , and (A-c) a graft-modified product of said cycloolefin random copolymer (A-a) or said ring-opening (co)polymer or its hydrogenation product (A-b). Image in which n is zero or 1, m is zero or any positive integer, q is zero or 1, R1 - R1 8 as well as R a and R b represent each independently with each other an atom or a radical selected from the group consisting of hydrogen atom, halogen atoms and hydrocarbon groups, wherein R1 5 - R1 8 may form a monocyclic ring or a polycyclic ring by combining with each other or may form an alkylidene radical by a chemical combination of R1 5 with R1 6 or R1 7 with R1 8 and wherein the monocyclic or polycyclic ring formed from R1 5 - R1 8 may have one or more double bonds and, in the case of q = 0, a five- membered ring is formed there by combining each of the chemical bonds.
Honma Shiro
Ohsato Shinji
Yamamoto Yohzoh
Mitsui Chemicals Inc.
Mitsui Petrochemical Industries Ltd.
Smart & Biggar
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