Patent ID: 6989189

Claim:
A laminate with a backing layer and a top layer, which are laminated together with a separable layer of permanently thermoplastic bonding material extruded therebetween by extrusion lamination comprising a mixture of i) silicone-modified low density polyethylene (LDPE), which is a LDPE graft copolymer with LDPE main chains and silicone side chains chemically bonded thereto, and which is a prereacted, linear crosslinked thermoplastic material; and ii) polyolefin which is adherent in state of plastic flow; wherein the backing layer is made of a member selected from the group consisting of paper, plastic film and a combination thereof, and wherein the paper is calendered craft paper with a density of more than 1 g/cm 3 and a smoothness between 40 and 120 Sheffield Units.