Patent ID: 9487918
Filing Date: 2016-11-08
CPC Classification: A61J,B05D,B65B,B65D,D21H

Claim Text:
1. Lidding material for blister packaging comprising a base paper on which is present a pre-barrier layer and a latex coating, wherein the pre-barrier layer is present between the base paper and the latex coating, wherein the lidding material has a Mullen burst strength between 80 and 200 kPa, a water vapor transmission rate of ≦4 g/m 2 /day determined at a temperature of 38° C. and at a relative humidity of 100%, as defined by ASTM F1249, and a tear strength between 100 and 400 mN, as defined by ISO standard 1974, and wherein the lidding material optionally further comprises a sealant layer adjacent to the latex coating.