| PATENT ASSIGNEE'S COUNTRY | Finland |
| UPDATE | 10.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Process for the prepn of a tall oil rosin ester with a low odor level, which process comprises - Esterifying tall oil rosin with polyol in one vessel to form prodt which contains a tall oil rosin ester - Subjecting the prodt obtained to evaporation in order to remove odor comp. & other volatile comp. from the prodt., which evaporation is carried out in a separate short-path evaporator which has an evaporation surface - Condensing the vaporized comp. on a condenser in the vicinity of the evaporation surface Whereupon a tall oil rosin ester having a low odor level is recovered & the ratio of polyol used in the esterification to the resin is 0.9-1.1:1 |
| PATENT PHOTOCOPY | Available on request |
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