what chemicals are in alkyd resin?
The principal polybasic acids used in alkyd preparation include phthalic anhydride, isophthalic acid, maleic anhydride, and fumaric acid, among many others. The principal types of polyols used in alkyd synthesis are glycerol, trimethylolethane, trimethylolpropane, pentaerythritol, ethylene glycol, and neopentyl glycol.