the role of anti-yellowing agents in preventing yellowing of tpu-based glues 🌟 introduction thermoplastic polyurethane (tpu) is a versatile polymer widely used across industries such as footwear, automotive, electronics, and textiles. its elasticity, transparency, oil resistance, and durability make it an ideal choice for adhesives—especially in high-performance applications. however, one persistent issue with tpu-based glues...