Patent ID: 6244500
Filing Date: 2001-06-12
Classification: B31C,B65D,Y10S,Y10T

Abstract:
A multi-ply tubular container for products, comprising:at least one body ply formed of fibrous paperboard and wrapped into a tubular shape and having an inner surface; anda polymeric liner ply including at least an adhesive layer and a seal layer, the adhesive layer comprising a heat-activated non-aqueous polymer material that becomes tacky upon heating to an activation temperature, the seal layer comprising a polymer material having a melting temperature higher than the activation temperature of the adhesive layer, the liner ply being wrapped into a tubular shape and having the adhesive layer adhered to the inner surface of the body ply, one marginal edge portion of the liner ply overlapping an opposite marginal edge portion thereof and having the seal layer on the one edge portion adhered to the adhesive layer on the opposite edge portion.