Polyester-41 is a complex polyester that is made by condensing Dimethylolcyclohexane, Glycerin, Neopentyl Glycol, Pentaerythritol, Triethylene Glycol, and Trimethylolpropane with Acrylic Acid, Adipic Acid, Fumaric Acid, Maleic Anhydride, Phthalic Anhydride, and Rosin (q.v.),