Method of improving the color of tall oil rosin ester

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

C - Chemistry, Metallurgy

09

F

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C09F 7/10 (2006.01) C08L 23/02 (2006.01) C09F 1/04 (2006.01) D06M 15/01 (2006.01) D21H 17/62 (2006.01)

Patent

CA 1253142

METHOD OF IMPROVING THE COLOR OF TALL OIL ROSIN ESTERS Abstract of Disclosure 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 anhy- dride 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.

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