- Glyptal is an alkyl resin.
- Alkyd resins are polyesters that contain dibasic acids, polyols, and fatty acids.
- They belong to a thermosetting polymer.
- Glyptal is a polyester of ethylene glycol and phthalic acid.
- The structure of glyptal is
Therefore, glyptal is a alkyd resin which is a polymer of ethylene glycol and phthalic acid.