Patent ID: 9352755
Filing Date: 2016-05-31
CPC Classification: B61D,C08G,C08K,C08L

Claim Text:
1. A railway component, wherein the component is a molded or extruded train seat component, comprising a thermoplastic composition comprising, based on the total weight of the composition: 3.5 to up to 12 wt. % of an organophosphorus compound; 88 to up to 96.5 wt. % of a first polymer, or a second polymer, or a combination comprising at least one of the foregoing polymers; and optionally, up to 5 wt. % of an additive selected from a processing aid, a heat stabilizer, an ultra violet light absorber, a colorant, or a combination comprising at least one of the foregoing, wherein the first polymer comprises: 2 to 20 mol % of bisphenol-A carbonate units of the formula greater than 60 to 98 mol % of isophthalic acid-terephthalic acid-resorcinol ester units of the formula and optionally, 1 to 20 mol % resorcinol carbonate units of the formula isophthalic acid-terephthalic acid-bisphenol-A ester units of the formula or a combination comprising at least one of the foregoing; the second polymer comprises 1 to 20 mol % of bisphenol A carbonate units of the formula greater than 60 to 90 mol % of isophthalic acid-terephthalic acid-resorcinol units of the formula and siloxane units in an amount effective to provide 0.1 to 10 wt. % of siloxane units, based on the weight of the second polymer, wherein the siloxane units are of the formula or a combination comprising at least one of the foregoing, wherein E has an average value of 2 to 90; wherein the aromatic organophosphorus compound is of the formula wherein each of R X is of the formula each n is 1, and q is from 1 to 5; and wherein a sample of the thermoplastic composition has: a smoke density after 4 minutes (Ds-4) of equal to or less than 300 measured in accordance with ISO 5659-2 on a 3 mm thick plaque at 50 kW/m an integral of the smoke density as a function of time up to 4 minutes (VOF4) of equal to or less than 600 measured in accordance with ISO 5659-2 on a 3 mm thick plaque at 50 kW/m a maximum average heat release (MAHRE) of equal to or less than 90 kW/m a ductility in multiaxial impact of 100%, measured at +23° C. at an impact speed of 4.4 m/second in accordance with ISO 6603 on 3.2 mm thick discs, and wherein the thermoplastic composition is free of a polyetherimide.