Laminate

Details Laminate Laminate

1992-06-11

1994-04-05

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428516, 428412, 428483, 428518, 428519, 4284769, B32B 1508, B32B 2736

Patent

active

053003527

ABSTRACT:
The laminate of the invention comprises a substrate and a resin surface layer having a glossiness of not less than 60% when measured at an incidence angle of 60.degree. laminated on at least one side surface of the substrate, and the substrate is formed from at least one cycloolefin polymer (A) selected from the group consisting of a random copolymer (a-1) of specific cycloolefin and ethylene, a ring opening polymer (a-2) of specific cycloolefin, a ring opening copolymer (a-3) of specific cycloolefin and a hydrogenation product (a-4) of the ring opening polymer or the ring opening copolymer, or formed from a cycloolefin resin composition (B) comprising the cycloolefin polymer (A) and crystalline polyolefin and/or an .alpha.-olefin elastomeric copolymer. The substrate shows excellent resistance to flon gas, so that the resin surface layer is effectively prevented from occurrence of cracks caused by influence of flon gas.

REFERENCES:
patent: 4614778 (1986-09-01), Kajiura et al.
patent: 4918133 (1990-04-01), Moriya et al.

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