Effective September 1, 2008, LyondellBasell's toluene diisocyanate (TDI) business was acquired by Perstorp. For a period of time, LyondellBasell will provide transition services on behalf of Perstorp. Your TDI sales and business contacts will remain the same during this transition.
Toluene diisocyanate (TDI) is an isocyanate used in the production of polyurethanes for flexible foam applications.
Benefits and Applications
TDI applications range from furniture, bedding and carpet underlay to transportation and packaging. TDI is also used in the manufacture of coatings, sealants, adhesives and elastomers. TDI is manufactured in France at the Pont-de-Claix site and marketed under the Scuranate brand.
Scuranate T80
The two principal isomers of TDI are classified as 2,4-toluene diisocyanate and 2,6-toluene diisocyanate. Scuranate T80 is a mixture of 80% 2,4-toluene diisocyanate and 20% 2,6-toluene diisocyanate. Major applications for TDI-80 and Scuranate T80 include polyurethane flexible foam (slab/molding), elastomers, paints/coatings, adhesives and binders.
Scuranate T65
T65 is a mixture of 68% 2,4-toluene diisocyanate isomer and 32% 2,6-toluene diisocyanate isomer. This mixture is prepared after crystallization and separation of the two isomers. T65 is used for high-load bearing and high-resilience flexible foams.
Scuranate T100
T100 contains more than 99% of 2,4-toluene diisocyanate. This product is prepared after crystallization during the purification stage. T100 is mainly used in the cast elastomer and the paint/coatings industries.
Scuranate TX
Scuranate TX is a mixture of the 2,4 and 2,6 isomers with a high concentration of 2,4 isomer. It is prepared after crystallization during the purification stage and is used principally in paints, coatings, adhesives and binders.
|
TDI |
Applications |
| Product Code |
General Purpose |
High-Load Bearing |
High Resiliency |
Industrial Purpose |
Cast Elastomer |
Paint Coating |
Adhesive Binder |
|
|
|
|
|
|
|
|
| Scuranate T80 |
• |
• |
• |
• |
• |
• |
• |
| Scuranate T65 |
|
• |
• |
• |
|
|
|
| Scuranate T100 |
|
|
|
|
• |
• |
• |
| Scuranate TX |
|
|
|
|
|
• |
• |
Toxicology/Regulatory
TDI (as well as other isocyanates) are toxic and reactive chemicals, which require proper handling to ensure that they are used safely. Exposures by inhalation, skin contact or ingestion should be avoided. In particular, inhalation of vapors, aerosols, and dust should be avoided, since this can lead to irritation and in extreme cases to a reduction of lung function and/or sensitization. Users or handlers should obtain and carefully review a material safety data sheet (MSDS). Additional information regarding the responsible management of empty TDI drums, as well as the loading/unloading, transportation and storage of TDI (bulk) should be reviewed in the Toluene Diisocyanate Handling Guide.
Properties
|
TDI |
Typical Properties |
| Product Code |
Chemical Description |
Specific Gravity 25°C |
Viscosity mPa.s 25°C |
Hydrolysable chlorides % |
Total acidity % |
Colour
APHA |
|
|
|
|
|
|
|
| Scuranate T80 |
TDI 80/20 |
1.22 |
3 |
<0.007 |
<0.004 |
<40 |
| Scuranate T65 |
TDI 68/32 |
1.22 |
3 |
<0.010 |
<0.005 |
<40 |
| Scuranate T100 |
2,4 TDI |
1.22 |
3 |
<0.015 |
<0.013 |
<30 |
| Scuranate TX |
TDI 95/5 |
1.22 |
3 |
<0.010 |
<0.0015 |
<40 |