Toluene 2,4-Diisocyanate → Urethane acrylate

HRID 23303

Reaction equation

HRID 23303 reaction equation
[C:1]([O:5][CH2:6][CH:7](O)C)(=[O:4])[CH:2]=[CH2:3].CC1C(N=C=O)=CC([N:17]=C=O)=CC=1>>[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[NH2:17][C:1]([O:5][CH2:6][CH3:7])=[O:4]

Participants

3

Reactant 2

HCID 11443Toluene 2,4-DiisocyanateHCID 612492-Hydroxypropyl acrylate

Product 1

HCID 21863578Urethane acrylate

Conditions

Temperature
70 °C

Procedure

In a flask equipped with a stirring blade, 260 parts (2 mol) of 2-hydroxypropyl acrylate(molecular weight of 130) was charged and 174 parts (1 mol) of TDI (2,4-tolylene diisocyanate) was added dropwise. After heating to 70° C. while paying attention to heat generation, the reaction was conducted at the same temperature for 7 hours. After confirming the disappearance of absorption of NCO by infrared absorption spectrum, the reaction product was taken out to obtain a urethane acrylate (H-1) as a radical polymerizable oligomer (A1).

Workup

  1. additionwas charged
  2. temperatureto heat generation
  3. customthe disappearance of absorption of NCO by infrared absorption spectrum

Sources & evidence

ORD record
ord-562bc125bbe84b298e82cd9f09432128
Source dataset
uspto-grants-2005_02
Patent number
US06850682B2

Linked notes

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