LDPE/FR refers to low-density polyethylene with flame retardant properties. LDPE (Low-Density Polyethylene) is a type of thermoplastic known for its flexibility, toughness, and chemical resistance. When it's treated with flame retardant additives, it becomes LDPE/FR, which is more suitable for applications where fire safety is a concern.

A "mineral-filled thermoplastic core" likely refers to the addition of mineral fillers to the LDPE/FR matrix. Mineral fillers can enhance various properties of thermoplastics, such as stiffness, dimensional stability, and thermal conductivity. Common mineral fillers include calcium carbonate, talc, and mica.

Combining LDPE/FR with a mineral-filled core can result in a composite material that offers improved fire resistance and mechanical properties compared to pure LDPE/FR. This composite could find applications in industries where both fire safety and structural integrity are crucial, such as construction, transportation, and electronics.