Polyurethane foam in 1937: Otto Bayer
Read the condition on Polyurethane foam before the nickname. Year 1937, line “Otto Bayer,” figure 0. Polyurethane foam is one of 32 materials in this atlas, grouped under thermal: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number. Polyurethane foam (R-NH-COO-R′ network + blowing agent) is a family of grades whose density 30–60 kg/m³ rigid boards, heat band pyrolyses; does not melt cleanly, and fire letter typically E–B with facers; not A1.
Polyurethane foam is sold as grades, not as a single substance. Chemistry R-NH-COO-R′ network + blowing agent, density 30–60 kg/m³ rigid boards, heat band pyrolyses; does not melt cleanly. This atlas treats Polyurethane foam as a system: mill route, coatings, tests and the cavity it sits in.
Conductivity note: λ ~0.022–0.028 W/m·K (aged PIR boards, bands). Insulation score 88/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Fire letter in editorial use: typically E–B with facers; not A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
The label keeps Polyurethane foam, 1937, and 0. “Otto Bayer” is the condition on the figure.1937
Figures to keep
- Year of the condition
- 1937
- Property figure
- 0
- Material
- Polyurethane foam
- Use line
- Otto Bayer
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