| PATENT ASSIGNEE'S COUNTRY | Germany |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Reacting polyol with excess aldehyde or ketone (1 - 6 C) in the presence of acid catalyst, wherein part of aldehyde or ke tone is distilled out during reaction & wherein distilled part is replaced by fresh carbonyl compd having water content < 1 |
| PATENT PHOTOCOPY | Available on request |
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