| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 05.99 |
| PATENT ASSIGNEE | Aventis Research & Technologies GmbH (Frankfurt/M) |
| PATENT CLAIMS |
Mfg process by reacting - Epoxy resin (95-75 parts) having starting epoxide value of 0.1-0.8 mol/g - P-contg ester-anhydride (5-25 parts) being reaction prodt of P pentoxide & phosphonic acid diester in presence of solvent at -20 - 150C & having epoxide value 0.05-0.6 mol/ mol/100 g |
| PATENT PHOTOCOPY | Available on request |
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