Urethane elastomers have various advantages when compared with rubber, plastic and metal. This is especially true in regard to the urethane elastomers made using our product Tolidine diisocyanate (TODI). TODI-based elastomers offer excellent heat and hydrolysis resistance, along with superior mechanical properties.
Concerning the manufacturing point of view, due to its longer pot life, TODI-based prepolymer is easier to handle in comparison to NDI-based products.
Technical Information:
Physical and Chemical Properties
| Name | TODI (CAS No: 91-97-4) 4,4’-Diisocyanato-3,3’-dimethyl-1,1’-biphenyl |
| Synonyms | 3,3’-Dimethyl-4,4’-biphenyldiisocyanate O-Tolidine diisocyanate |
| Purity | Min. 99.5% |
| Molecular Weight | 264.286 g/mol |
| Package | 50 kg Fiber drum with inner plastic bag |
| Storage | Keep cool and dry place |
| Appearance | White pellets |
| Odor | Odorless |
| Boiling Point | 195-197°C (5 mmHg, or 667 Pa) |
| Melting Point | 71.7°C |
| Specific Gravity | 1.197 (80°C) |
| Solubility | Insoluble in water and slowly hydrolyzed by water. Soluble in aceton, carbon tetrachloride, kerosene, benzene, chlorobenzene, nitrobenzene. |
| Flash Point | 218°C (cleveland open cup) |
| NCO Content | 31,78 2 x 42 (-NCO)/264.286 x 100 |
APPLICATIONS
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Sealing (Oil sealing, piston ring, water sealed, etc.)
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Hydrophobic hydrocarbon main chain
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Automobile parts (Grille, shock absorbers, bumper extensions, etc.)
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Industrial use (Belt, roll, caster, etc.)
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Electric (Coating agent, etc.)
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Medical equipment (Artificial organ, etc.)
Chemical Structure
