| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | Shell Oil |
| PATENT CLAIMS |
Mixing - Bitumen having penetration > 300 dmm (ASTM D5 at 25C) - TP rubber (< 10%) - Blowing catalyst (1-3%) & blowing mixt with O |
| PATENT PHOTOCOPY | Available on request |
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