AIR-DRY PRIMER COATINGS FROM DEHYDRATED LESQUERELLA OIL

Lesquerella oil (LO), a domestic vegetable oil of hydroxy fatty acid c ontent, was dehydrated (DLO) and the product used to synthesize oil mo dified polyesters. The polyesters were comparatively evaluated with an alogous dehydrated castor oil (DCO) polyesters. Accordingly, polyester s were synthesized from DLO and DCO, and subsequently formulated into air-drying, anti-corrosive primers for evaluation. The DLO and DCO coa tings gave comparable pencil hardness, adhesion, and UV resistant prop erties. However, DLO derived coatings showed reduced drying time, supe rior flexibility, and corrosion resistance in comparison to a DCO coun terpart. (C) 1997 Elsevier Science B.V.