| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 09.99 |
| PATENT ASSIGNEE | Advanced Delivery & Chemical Systems |
| PATENT CLAIMS |
Si(OR)a[(O)2CR']b(F)c - R = alkyl, alkenyl, aryl or benzyl - R' = -CH2F, -CHF2 or -CF3 - a = 1-3; b = 1-2; c = 0-2 & a+b+c = 4; with the proviso that when a = 3, at least one R is other than Et |
| PATENT PHOTOCOPY | Available on request |
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