Applications of unsaturated polyester resins

Unsaturated polyester resins containing long chain fatty acids and styrene as cross-linking agents are easily available in Pakistan. I have made use of these resins in the preparation of overprint varnish, ornaments, synthetic marble and other related substances. The octates of manganese, cobalt, calcium and lead along with peroxide were used for jelling and drying of the resins. The effects of metal driers, aluminium stearate, peroxides and unsaturated long chain fatty acids in the composition as mentioned in the experimental section were also studied. The merits and demerits developed in the end products resulting from the variation of these chemicals in the compositions were also noted at their respective places. The article was submitted by the author in English.