Patent ID: 6613425
Filing Date: 2003-09-02
Classification: B29C,B29K,B32B,Y10S,Y10T

Abstract:
An insulated foam board system, comprising:a first foam layer being made from a material selected from the group consisting of alkenyl aromatic polymers, polypropylenes, polyethylene terephthalates, polyethylenes and combinations thereof, a second foam layer being made from a material selected from the group consisting of alkenyl aromatic polymers, polypropylenes, polyethylene terephthalates, polyethylenes and combinations thereof, and a coated or laminated central layer to provide flexibility that is located between said first layer and said second layer, said second central layer being bonded to said first layer and said second layer, said central layer being made from a material selected from the group consisting of crystal polystyrene, impact polystyrene, polyethylene terephthalate and combinations thereof; wherein the density of the insulated foam board system is from about 1 to about 4 lbs/ft3.