FRX Polymers shows successes with polyphosphonate PIN FR in demanding medical and automotive applications. The company’s polymeric phosphorus PIN FR has received OEM approvals for use in FR PET in medical equipment instrumentation and in PC/PBT blends in automotive interiors. The compound and blends offer high-gloss finish required for aesthetic reasons as well as good chemical resistance. The polymeric PIN FR does not have the plasticising effect of some additives, so does not reduce HDT (heat deflection temperature) in PC/ABS. In PC/ABS the Nofia product offers ease of processing and can achieve UL 94 V-0 down to 0.75 mm. In PET and rPET films, the polymeric PIN FR can achieve UL 94 VTM-0 (vertical thin material) down to 15 microns, with fully transparent film (low haze) and easy processing (the PIN FR can be used in a masterbatch or added directly into twin screw film extruder).
Ina Jiang, FRX Polymers, cited in Compounding World (AMI), December 2020 http://compoundingworld.com/ and FRX Polymers website https://www.frxpolymers.com/nofia-homopolymers