High Performance Polyurethanes Based on New Aro-matic Polyester Polyols Derived from PET Production Wastes

Technische Fachhochschule Wildau, Wildau, Germany: M. Boyadshiev, V. Stoycheva, M. Herzog**, K.-H. Schmidt, G. Behrendt

This paper describes the production and properties of polyurethane foams and cast resins based on a new type of branched aromatic polyester polyols (APP) derived from PET industrial wastes. To produce high quality polyurethanes a modified transesterification of PET by a glycol mixture was used and simultaneously small...

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