# Polyurethanes (MDI, TDI, polyols): Relationships

Source page: https://www.materialinsights.org/chemicals/polyurethanes/links/

Every element and industry that Polyurethanes (MDI, TDI, polyols) is linked to, and how. Each pair has its own card explaining the relationships between the two.

- [Chlorine](https://www.materialinsights.org/links/chlorine-and-polyurethanes-mdi-tdi-polyols/): MDI and TDI, the isocyanate half of polyurethanes, are made with phosgene from chlorine and carbon monoxide. The chlorine does not stay in the foam: it leaves as hydrogen chloride, which plants recycle to chlorine or sell, so isocyanate complexes are built beside chlor-alkali or HCl recovery units. *(researched)*
- [Natural gas](https://www.materialinsights.org/links/natural-gas-and-polyurethanes-mdi-tdi-polyols/): Natural gas is a raw material for polyurethanes (MDI, TDI, polyols); their prices have moved together.
- [Adhesives and sealants](https://www.materialinsights.org/links/adhesives-and-sealants-and-polyurethanes-mdi-tdi-polyols/): Their prices have moved together.
- [Aerospace and defence](https://www.materialinsights.org/links/aerospace-and-defence-and-polyurethanes-mdi-tdi-polyols/): Aerospace and defence depends on polyurethanes (MDI, TDI, polyols).
- [Apparel and footwear](https://www.materialinsights.org/links/apparel-and-footwear-and-polyurethanes-mdi-tdi-polyols/): Apparel and footwear depends on polyurethanes (MDI, TDI, polyols).
- [Benzene](https://www.materialinsights.org/links/benzene-and-polyurethanes-mdi-tdi-polyols/): Their prices have moved together.
- [Building materials](https://www.materialinsights.org/links/building-materials-and-polyurethanes-mdi-tdi-polyols/): Building materials depends on polyurethanes (MDI, TDI, polyols).
- [Construction and infrastructure](https://www.materialinsights.org/links/construction-and-infrastructure-and-polyurethanes-mdi-tdi-polyols/): Construction and infrastructure depends on polyurethanes (MDI, TDI, polyols).
- [Crude oil](https://www.materialinsights.org/links/crude-oil-and-polyurethanes-mdi-tdi-polyols/): Crude oil is a raw material for polyurethanes (MDI, TDI, polyols).
- [Food and beverage processing](https://www.materialinsights.org/links/food-and-beverage-processing-and-polyurethanes-mdi-tdi-polyols/): Food and beverage processing depends on polyurethanes (MDI, TDI, polyols).
- [Formaldehyde](https://www.materialinsights.org/links/formaldehyde-and-polyurethanes-mdi-tdi-polyols/): Their prices have moved together.
- [Furniture](https://www.materialinsights.org/links/furniture-and-polyurethanes-mdi-tdi-polyols/): Furniture depends on polyurethanes (MDI, TDI, polyols).
- [Heat pumps, air conditioning and refrigeration](https://www.materialinsights.org/links/heat-pumps-air-conditioning-and-refrigeration-and-polyurethanes-mdi-tdi-polyols/): Their prices have moved together.
- [Hospitality and tourism](https://www.materialinsights.org/links/hospitality-and-tourism-and-polyurethanes-mdi-tdi-polyols/): Hospitality and tourism depends on polyurethanes (MDI, TDI, polyols).
- [Hydrochloric acid](https://www.materialinsights.org/links/hydrochloric-acid-and-polyurethanes-mdi-tdi-polyols/): Their prices have moved together.
- [Media and entertainment](https://www.materialinsights.org/links/media-and-entertainment-and-polyurethanes-mdi-tdi-polyols/): Media and entertainment depends on polyurethanes (MDI, TDI, polyols).
- [Medical devices](https://www.materialinsights.org/links/medical-devices-and-polyurethanes-mdi-tdi-polyols/): Medical devices depends on polyurethanes (MDI, TDI, polyols).
- [Metal products](https://www.materialinsights.org/links/metal-products-and-polyurethanes-mdi-tdi-polyols/): Metal products depends on polyurethanes (MDI, TDI, polyols).
- [Nitric acid](https://www.materialinsights.org/links/nitric-acid-and-polyurethanes-mdi-tdi-polyols/): Their prices have moved together.
- [Propylene oxide](https://www.materialinsights.org/links/polyurethanes-mdi-tdi-polyols-and-propylene-oxide/): Their prices have moved together.
- [Salt](https://www.materialinsights.org/links/polyurethanes-mdi-tdi-polyols-and-salt/): Salt is a raw material for polyurethanes (MDI, TDI, polyols).
- [Toluene](https://www.materialinsights.org/links/polyurethanes-mdi-tdi-polyols-and-toluene/): Their prices have moved together.
- [Wholesale and retail trade](https://www.materialinsights.org/links/polyurethanes-mdi-tdi-polyols-and-wholesale-and-retail-trade/): Wholesale and retail trade depends on polyurethanes (MDI, TDI, polyols).
- [Wood products](https://www.materialinsights.org/links/polyurethanes-mdi-tdi-polyols-and-wood-products/): Wood products depends on polyurethanes (MDI, TDI, polyols).

## Other sections

- [Summary](https://www.materialinsights.org/chemicals/polyurethanes/index.md)
- [Overview](https://www.materialinsights.org/chemicals/polyurethanes/overview/index.md)
- [Correlation](https://www.materialinsights.org/chemicals/polyurethanes/correlation/index.md)
- [Production route](https://www.materialinsights.org/chemicals/polyurethanes/routes/index.md)
- [Production](https://www.materialinsights.org/chemicals/polyurethanes/production/index.md)
- [Feedstocks](https://www.materialinsights.org/chemicals/polyurethanes/feedstocks/index.md)
- [Cycles](https://www.materialinsights.org/chemicals/polyurethanes/cycles/index.md)
- [Trading](https://www.materialinsights.org/chemicals/polyurethanes/trading/index.md)
- [Movement](https://www.materialinsights.org/chemicals/polyurethanes/movement/index.md)
- [Regulation](https://www.materialinsights.org/chemicals/polyurethanes/regulation/index.md)
- [Characteristics](https://www.materialinsights.org/chemicals/polyurethanes/characteristics/index.md)
- [Emissions](https://www.materialinsights.org/chemicals/polyurethanes/emissions/index.md)