| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 05.99 |
| PATENT ASSIGNEE | Sumitomo Chemical (Osaka) |
| PATENT CLAIMS |
Ph-SO2-CH=CH2 mfg process - Reacting Ph-SO2-CH2CH2-X with Na2CO3 in the presence of amine catalyst |
| PATENT PHOTOCOPY | Available on request |
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