Method of improving the color of tall oil rosin esters

Details Method of improving the color of tall oil rosin esters Method of improving the color of tall oil rosin esters

1986-06-10

1987-04-14

Cockeram, Herbert S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 975, C09F 104, C09F 700, C08L 9304

Patent

active

046577068

ABSTRACT:
Disclosed is a method of improving the color of tall oil rosin esters comprising the sequential steps of (a) heating the tall oil rosin in the presence of a carboxylic acid anhydride and a Lewis acid catalyst, (b) distilling the reaction mixture, and (c) esterifying the distilled tall oil rosin with a polyol. The improved tall oil rosin esters produced thereby are useful in the manufacture of a variety of products, such as paper and textile sizes, plasticizers for polyolefin films, paints, varnishes, hot melt adhesives and pressure sensitive adhesives.

REFERENCES:
patent: 3106550 (1963-10-01), Bitting et al.
patent: 3112209 (1963-11-01), Bradley
patent: 3780012 (1973-12-01), Smith
patent: 4548746 (1985-10-01), Duncan et al.
patent: 4585584 (1986-04-01), Johnson et al.

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