B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/08 (2006.01) B32B 27/36 (2006.01) B32B 31/26 (1990.01)
Patent
CA 2103523
A polyester resin film laminated metal sheet for a retortable can stock having excellent resistance to milky change during retort treatment after packing foods and drinks, is obtained by controlling to the optimum range in a relative ratio of density and a residual degree of biaxial orientation of the laminated biaxially oriented polyester resin film consisting of about 10 to about 60 weight % of polybutylene terephthalate and about to 90 weight % of polyethylene terephthalate having a glass transition temperature of about 40 to about 70°C, in the laminate before retort treatment after lamination to one or both sides of a metal sheet covered with a single layer of hydrated chromium oxide or a double layer consisting of an upper layer of hydrated chromium oxide and a lower layer of metallic chromium.
Inui Tsuneo
Miyachi Akio
Okamura Takaaki
Tanaka Atsuo
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Toyo Kohan Co. Ltd.
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