Chemistry: natural resins or derivatives; peptides or proteins; – Natural resins or derivatives – Rosin or derivative used as starting material in process – or...
Patent
1998-04-21
1999-10-19
Nutter, Nathan M.
Chemistry: natural resins or derivatives; peptides or proteins;
Natural resins or derivatives
Rosin or derivative used as starting material in process, or...
530215, 530217, C11C 300
Patent
active
059690925
ABSTRACT:
The invention relates to a process for the preparation of a tall oil rosin ester with a low odor level, which process comprises an esterification step wherein a tall oil rosin is esterified with a polyol in order to form a product which contains a tall oil rosin ester, and evaporation is carried out on this product in order to remove odor components and other volatile components from the product, which evaporation is carried out in a short-path evaporator which has an evaporation surface and, in the vicinity of this surface, a condenser on which the vaporized components to be removed condense, whereupon a tall oil rosin ester with a low odor level is recovered from the evaporator.
REFERENCES:
patent: 3780013 (1973-12-01), Smith
patent: 4548746 (1985-10-01), Duncan et al.
patent: 4659514 (1987-04-01), Beuke
patent: 4962186 (1990-10-01), Johnson, Jr.
patent: 5084554 (1992-01-01), Minn
(McSweeny et al., 1987) "Tall Oil and Its Uses-II". Specialty Chemicals.: 37-39.
Arizona Chemical Oy
Nutter Nathan M.
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