Barrier layer for use in refrigerator cabinets

Abstract

Disclosed herein is a composition for barrier layers for use in insulative cabinet wall structures, particularly those used in appliances such as refrigerators and dishwashers. The compositions of the barrier layer is resistant to the action of polyurethane foam blowing agents, and has (i) an effective amount of a polyethylene modified with a compound such as maleic anhydride, maleic acid, maleic anhydride derivatives, maleic acid derivatives, or mixtures thereof; and (ii) an effective amount of a rubber. The barrier layer composition may contain polyethylene, polypropylene, polybutylene, or copolymers thereof.

Dependencies are inferred from the claim text.