A foam roofing underlayment is provided with a reinforcement membrane having an array of fastener elements for engaging fastener elements on a flexible roof membrane. The underlayment is formed by molding foam between the reinforcement membrane and a carrier membrane. The underlayment in secured to the roof using washers having fastener elements for engaging the fastener elements of the flexible roof membrane. An anti-peel flap with fastener elements is provided around the periphery of the washers. A slip sheet is used between the underlayment and the flexible roof membrane to permit accurate positioning of the flexible roof membrane prior to engagement of the fastener elements. The interstices between the fastener elements provide lateral moisture paths to vents in the flexible roof membrane.

Polypropylene-based sheet materials such as a polypropylene-based foam sheet material and a multilayered sheet material including the polypropylene-based foam as a layer are disclosed. The multilayered sheet material may include the polypropylene-based foam layer sandwiched between and adhered to outer polypropylene-based polymer films to provide a multilayered sheet material. The polypropylene-based foam sheet and multilayered sheet material including the polypropylene-based foam as a layer may be used in the production of printed products such as sign panels.

Polypropylene-based sheet materials such as a polypropylene-based foam sheet material and a multilayered sheet material including the polypropylene-based foam as a layer are disclosed. The multilayered sheet material may include the polypropylene-based foam layer sandwiched between and adhered to outer polypropylene-based polymer films to provide a multilayered sheet material. The polypropylene-based foam sheet and multilayered sheet material including the polypropylene-based foam as a layer may be used in the production of printed products such as sign panels.

The present disclosure relates to a method to produce a substrate comprising at least one foamed layer. The method comprises applying a compounded material on a carrier, wherein the compounded material comprises a thermoplastic material and a blowing agent, applying heat and pressure in a pressing device to the compounded material to form the at least one foamed layer, wherein the blowing agent has an activation temperature being higher than processing temperatures for forming the compounded material.

The present disclosure relates to a method to produce a substrate comprising at least one foamed layer. The method comprises applying a compounded material on a carrier, wherein the compounded material comprises a thermoplastic material and a blowing agent, applying heat and pressure in a pressing device to the compounded material to form the at least one foamed layer, wherein the blowing agent has an activation temperature being higher than processing temperatures for forming the compounded material.

Floor panel for forming a floor covering, where the floor panel includes a carrier on the basis of a thermoplastic material and a top layer provided on the carrier. The thermoplastic material is free from plasticizers or includes a plasticizer in an amount up to maximum 20 phr, where the thermoplastic material is foamed or expanded, and where the carrier is provided with a reinforcement layer.