Patent ID: 9005701
Filing Date: 2015-04-14
Classification: B29C,B29K,B32B,C08J,Y10T

Abstract:
1. A process for manufacturing a material consisting of a layer (A) and a layer (B) applied thereon to cover said layer (A), said layer (A) being an expanded polyester core being covered with said layer (B) as an outer protective layer, said layer (B) being unexpanded polyester containing functional additives in an amount for providing protection of said material from at least one of physical attack or chemical attack, wherein the outer protective layer is comprised of a polyalkylidene terephthalate and at least one flame retardant agent in an amount from 30 to 60 weight-percent and at least one anti-hydrolysis agent, the process comprising a continuous on-line extrusion of layer (A) and coating layer (B) onto layer (A) using a powder melt coating process, wherein the powder melt coating process comprises recycled polyalkylidene terephthalate as a base material.