Glycerol → 1709-72-4

Temperature

50 °C

4.6 g of glycerine was dissolved in 50 g of ethyl acetate, to which several drops of triethylamine was added while agitating. Thereafter, a 1,4-dioxane solution of 10 g of acrylic chloride was dropped into the solution, followed by agitating at room temperature for further 2 hours and further agitating for 1 hour after raising the temperature up to 50° C. The reaction solution was discharged and admixed with water, followed by shaking, removing water-soluble components from the system and distilling off the 1,4-dioxane to obtain glycerol-1,3-diacrylate. 10 g (0.05 mole) of the glycerol-1,3-diacrylate, 20.2 g (0.03 mole) of a partially esterified product of styrene/maleic anhydride copolymer ("Styrite CM-2L", molecular weight≈5000, product of Sankyo Kasei Co., Ltd.), 20 mg of hydroquinone were dissolved in 85 g of 1,4-dioxane and agitated at 90° C for 4 hours, followed by dropping the reaction solution into 3 liters of water and drying the resulting precipitate in vacuo, thereby obtaining a carboxylic acid semi-ester polymer (polyfunctional resin).

1. additionwas added
2. stirringby agitating at room temperature for further 2 hours
3. stirringfurther agitating for 1 hour
4. stirringby shaking
5. customremoving water-soluble components from the system
6. distillationdistilling off the 1,4-dioxane

ORD record

ord-2cdfa0499c0740d5b7deba37688f5acb

Source dataset

uspto-grants-1985_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04537855