Patent ID: 7364774
Filing Date: 2008-04-29
Classification: B05D,D21H

Abstract:
1. A method of producing a coated basepaper or paperboard substrate comprising the steps of: a) forming a composite, multilayer free flowing curtain, wherein at least one of the layers of the curtain has a coatweight when dried of less than about 30 g/m b) contacting the curtain with a continuous basepaper or paperboard web substrate having a velocity of at least about 200 m/min., whereby, in case an oil and/or grease barrier layer is present in the multilayer curtain the coated substrate has a Kit value of at least about 5 in the flat-test, in case a water vapor barrier layer is present in the multilayer curtain the coated substrate has a water vapor transmission rate of less than about 50 g/(m in case a water resistance layer is present in the multilayer curtain the coated substrate has a 10 minute Cobb value of less than about 20 g/m in case an oxygen barrier layer is present in the multilayer curtain the coated substrate has an oxygen transmission rate of less than about 200 cm