Interior train components having low smoke and low heat release, and methods of their manufacture
US9352755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2013 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/448
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Interior railway components (seat covers and claddings) comprise a thermoplastic composition comprising: a first polymer comprising bisphenol A carbonate units and monoaryl arylate units, or a second polymer comprising bisphenol A carbonate units, monoaryl arylate units, and siloxane units, or a combination comprising at least one of the foregoing polymers; and an organophosphorus compound; wherein a sample of the thermoplastic composition has: a smoke density after 4 minutes (Ds-4) of equal to or less than 300, an integral of the smoke density as a function of time up to 4 minutes (VOF4) of equal to or less than 600, a maximum average heat release (MAHRE) of equal to or less than 90 kW/m2, and a ductility in multiaxial impact of 100%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.