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Article: Polyphosphonate: new flame-retardant cousin of polycarbonate.(close up: materials)
- Article from:
- Plastics Technology
- Article date:
- July 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 Gardner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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A new thermoplastic made by a polycondensation process similar to that used for polycarbonate offers high clarity, inherent flame resistance, and broad potential for copolymerization with PC and alloying with styrenics and polyesters. FRX Polymers Inc., a two-year-old unit of Triton Systems Inc. in Chelmsford, Mass., developed technology to produce a phosphorus-based monomer and polymerize it into what will be the first commercial polyphosphonate (PPh) resins. FRX is qualifying PPh homopolymers and copolymers for melt blending as polymeric flame-retardant additives in engineering resins and for use as inherently flame-retardant transparent plastics in consumer electronics ...