Patent ID: 6427860
Filing Date: 2002-08-06
Classification: B21D,B65D

Abstract:
A metal easy-open can lid superior in can openability having a resin coating on at least one surface thereof;said easy-open can lid having an outer peripheral flat portion, an inner peripheral flat portion, a score line portion located between said outer peripheral flat portion and said inner peripheral flat portion, with a score line located in said score line portion; an outer bead located at a side of said outer peripheral flat portion which is opposite to said score line; an inner bead located at a side of said inner peripheral flat portion which is opposite to said score line; said score line portion having a cross-sectional thickness which gradually becomes thinner at a rate of change of cross-sectional thickness of not more than 1000 &mgr;m/mm from a location adjacent said outer peripheral flat portion to a location at said score line and said score line portion having a cross-sectional thickness which gradually becomes thinner at a rate of change of cross-sectional thickness of not more than 1000 &mgr;m/mm from a location adjacent said inner peripheral flat portion to a location at said score line.