Patent ID: 8470447

Claim:
An easy open end of a stay-on-tab featuring openability at high temperatures, comprising a resin-coated metal plate obtained by coating a metal substrate with a polyester film via a primer, wherein said polyester film comprises a copolymerized polyethylene terephthalate containing not more than 30 mol % of an isophthalic acid and has an intrinsic viscosity of 0.52 to 0.70 dl/g, and said primer comprises an epoxy resin and a resole-type phenol resin, said resole-type phenol resin is a copolymer of formaldehyde and a phenol compound comprising 3,5-xylenol and p-cresol and has 0.2 to 2.0 methylol groups per benzene ring; and the blending ratio of the epoxy resin and the resole-type phenol resin is 60:40 to 85:15.