OIL-MODIFIED ALKYD TYPE RESIN-BASED ON SECONDARY ESTERS OF CASTOR-OIL

This study investigates the preparation of an oil-modified alkyd resin , starting from secondary esters of castor oil. Secondary esters of ca stor oil with mixed fatty acids of sunflower oil were subjected to the rmal splitting. Partial glycerides resulting from the reaction between the thermal splitting mixture and glycerol were reacted with phthalic anhydride to obtain the proposed oil-modified alkyd resin. Due to the occurrence of diene conjugation on the ricinoleic acid chain during t hermal splitting, this process can be viewed as an alternate way of pr eparing an alkyd resin partially modified with dehydrated castor oil.