Polyester film for laminating metal can end substrate surface
申请(专利)号：
US19970824534
申请日期：
1997-03-26
公开/公告号：
US6045905A
公开/公告日期：
2000-04-04
申请(专利权)人：
MITSUBISHI POLYESTER FILM CORPORATION
被引量：
摘要：
The present invention relates to a coextruded laminated film for laminating the external surface of a metal can end substrate comprising:a polyester (A) layer having the ratio of the ethylene terephthalate units or ethylene naphthalate units to the whole ester units of not less than 85 mol %; anda polyester (B) layer which is laminated on the external surface of a metal can end substrate, having the ratio of the ethylene terephthalate units or ethylene naphthalate units to the whole ester units of 65 to 90 mol %, having 3 to 50 . mu.m thickness, anda printed layer being provided on the surface of the (B) layer of said laminated film at a printed area percentage of not more than 90%, wherein the printed layer directly contacts the metal can end substrate when said film is applied to said substrate. Also disclosed is a pigmented polyester laminating film for the external surface of a beverage can end substrate, said polyester film having a ratio of the maximum to the minimum value of elastic modulus in the in- plane direction of the film of 1.00 to 1.50.
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