| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Prepn method by reaction of - Bis(hydroxymethyl) compd of formula: RR'C(CH2OH)2; R & R' are electronegative groups - Orthocarboxylic acid ester of formula HC[O(Alkyl)]3 to form a cyclic orthocarboxylic acid ester & - Reaction with formol |
| PATENT PHOTOCOPY | Available on request |
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