Polycarbonate (PC)

Transparent engineering plastic tough enough for riot shields, eyeglasses, and every compact disc.

Core Principles & Analysis

• Developed independently at Bayer and General Electric in 1953.
• It is glass-clear yet withstands hammer blows — the material of "bulletproof glass" laminates.
• CDs and DVDs were injection-molded polycarbonate with data pressed as microscopic pits.

Specifications & Metrics

• MONOMER: Bisphenol A + phosgene