| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 10.99 |
| PATENT ASSIGNEE | ARCO Chemical Technology |
| PATENT CLAIMS |
- Reacting an aromatic diisocyanate with a polyol having a polydispersity < 1.5 to produce an NCO-terminated prepoly mer, wherein the NCO/OH mole ratio is 1.3-3.0 - Mixing the prepolymer with an aliphatic diisocyanate to form a prepolymer/aliphatic diisocyanate mixt that has an NCO content within 2-13% - Reacting said mixt with an aromatic diamine in amount & manner effective to produce clear PU/urea elastomer |
| PATENT PHOTOCOPY | Available on request |
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