Union Camp Corporation

Nelson E Lawson

Jerome R Olechowski

Gamal I Amer

In the present invention, tall oil acids are prepared by acidulating tall oil soap with supercritical fluid carbon dioxide. The method of preparation is carried out at a temperature of from about 31.degree. to 400.degree. C. and the supercritical carbon dioxide is under a pressure of from about 1075 to about 50,000 psi. The acidulate is extracted into the fluid phase of the supercritical carbon dioxide. The resultant tall oil acids are then recovered from the carbon dioxide fluid phase.

Acidulation and recovery of crude tall oil from tall oil soaps

Polymers having pendant sulfonic acid groups are disclosed as catalysts for polymerizing rosin.

Method of polymerizing rosin

Disclosure is made of radiation curable, solventless compositions useful in coatings, films and in preparing printing inks. The compositions comprise the reaction product of an equivalent excess of an acrylic type acid with a particular class of polyester polyol. The polyester polyol is the condensation product of an excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of from 60 to 250 with a specific class of aliphatic polycarboxylic acids derived from fatty and resin acids.

Novel coating compositions

Radiation curable acrylic resin compositions

Polyacrylate reaction products

Disclosure is made of radiation curable, solvent-less compositions useful in coatings, films and in preparing printing inks. The compositions comprise the reaction product of an equivalent excess of an acrylic type acid with a particular class of polyester polyol. The polyester polyol is the condensation product of an excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of from 60 to 250 with a specific class of aliphatic polycarboxylic acids derived from fatty and resin acids.

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Trenton, NJ, United States of America

Nelson E Lawson