According to information from the China National Intellectual Property Administration, Honeywell International Inc. has filed a patent titled “Foamable Thermoplastic Composition, Thermoplastic Foam, and Preparation Method Thereof,” with publication number CN121464174A. The application date is June 2024.

The patent abstract describes a foam product comprising a thermoplastic closed-cell foam structure. The foam includes at least a first surface and is formed from a thermoplastic polymer cell wall. This polymer matrix contains at least approximately 0.5% by weight of ethylene furanoate moieties, along with optional copolymer components.

The closed-cell foam also includes a blowing agent containing HFC-152a, which is present within at least a portion of the closed cells. This combination is designed to support the formation of a stable closed-cell foam structure with enhanced material performance characteristics.

The disclosed technology relates to advanced thermoplastic foam materials and their manufacturing methods, with potential applications in insulation, packaging, and other industrial use cases requiring lightweight and durable foam structures.