POLYMER FOAM INSULATION STRUCTURES HAVING A FACING LAYER OF A POLYLACTIDE RESIN

• Main Authors: NATAL, Manuel, A.W, OWUSU, Osei, A, HOSSIENY, Nemat, BENSON, Richard, Douglas
• Format: Patent
• Language: English; French; German
• Published: 06.03.2019
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BUILDING; BUILDING MATERIALS; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; ROOFS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STRUCTURAL ELEMENTS; TRANSPORTING; WALLS, e.g. PARTITIONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Thermal insulation structures include a polymer foam layer adhered to a non-cellular sheet of a polylactide resin. The polylactide resin is a surprisingly good barrier to the diffusion of atmospheric gases into and blowing agents out of the foam layer. Accordingly, the diffusion of atmospheric gases and the blowing agents is retarded substantially. This greatly reduces the loss of thermal insulation capacity of the structure due to the replacement of the blowing agent with atmospheric gases.