Ethyl Acetate → Urethane acrylate

HRID 1511516Notes

Reaction equation

HRID 1511516 reaction equation
[C:1]([O:6]CC[N:9]=C=O)(=[O:5])[C:2](C)=[CH2:3].[C:12]([O:15][CH2:16][CH3:17])(=[O:14])C>>[C:1]([OH:6])(=[O:5])[CH:2]=[CH2:3].[NH2:9][C:12]([O:15][CH2:16][CH3:17])=[O:14]

Participants

3

Reactant 2

HCID 8857Ethyl AcetateHCID 354092-Isocyanatoethyl methacrylate

Product 1

HCID 21863578Urethane acrylate

Procedure

Next, to a 100-mL round-bottom flask, 8.00 g of the polyester polyol, 2.15 g of methacryloyloxyethyl isocyanate, and 10.0 g of ethyl acetate were charged, and a reaction was conducted under stirring for six hours. The reaction mixture was filtered through a 0.2-μm membrane filter to remove the catalyst. An ethyl acetate solution of a target urethane acrylate with an NCO conversion rate of 95% was obtained. The residual ratio of the catalyst in the ethyl acetate solution was below the detection limit (5 ppm).

Workup

  1. filtrationThe reaction mixture was filtered through a 0.2-μm membrane
  2. filtrationfilter
  3. customto remove the catalyst

Sources & evidence

ORD record
ord-b5331170fcb141a687c7c5a1b177ff3f
Source dataset
uspto-grants-2012_07
Patent number
US08216962B2

Reaction notes

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