Patent ID: 7252866
Filing Date: 2007-08-07
Classification: B32B,Y10T

Abstract:
1. A container for retaining liquid and/or food that contains oil and/or fatty components, comprising: a molded container formed in a molding process from expandable particles consisting of polystyrene, a blowing agent, and one or more additives selected from the group consisting of pigments, colorants, plasticizers, mold release agents, stabilizers, and ultraviolet light absorbers, and having a sidewall with an inner surface and an outer surface and a base with an inner surface and an outer surface; said sidewall having voids formed by said expandable particles upon expansion of said expandable particles in said molding process for the forming of said container, and a thermoplastic film encircled around and fused to said inner surface of said sidewall of said container to cover said voids in said sidewall and to further expand said particles to prevent said liquid and/or said oil and/or fat components of said food from flowing into the voids in said inner surface of said sidewall, through said sidewall, and out onto said outer surface of said sidewall of said container.