Patent ID: 8146741
Filing Date: 2012-04-03
Classification: B65D

Abstract:
1. A blister package comprising a blister; and a cover sheet, wherein the blister has a groove formed in an outer edge section of the blister, wherein the outer edge section of the blister includes an outer region and an inner region, the groove is formed on the inward side of the outer region, and the inner region is formed on the inward side of the groove, wherein the cover sheet is adhered to the outer region of the outer edge section, the cover sheet is weakly adhered to the inner region of the outer edge section, and the groove is free of adhesion of the sheet, wherein a peel strength between the outer region and the cover sheet is at least 12 N/15 mm, wherein a peel strength between the inner region and the cover sheet is 0.5-10 N/15 mm, wherein the cover sheet has a tear strength of 0.2-1.2 N, and wherein the peel strength between the outer region and the cover sheet is greater than the tear strength of the cover sheet, and the peel strength between the inner region and cover sheet is smaller than the tear strength of the cover sheet.