2-Butanone oxime → Urethane acrylate

HRID 1835899Notes

Reaction equation

HRID 1835899 reaction equation
[C:1]([O:6][CH2:7][CH2:8]O)(=[O:5])[C:2](C)=[CH2:3].CC(CC)=[N:12]O>>[C:1]([OH:6])(=[O:5])[CH:2]=[CH2:3].[NH2:12][C:1]([O:6][CH2:7][CH3:8])=[O:5]

Participants

3

Reactant 2

HCID 72922-Butanone oximeHCID 133602-Hydroxyethyl Methacrylate

Product 1

HCID 21863578Urethane acrylate

Procedure

Into a four-necked flask provided with a stirrer, a condenser and a thermometer are charged 1500 parts of 3-methylpentane adipate having a molecular weight of 500, 134 parts of trimethylol propane and 1464 parts of tetramethylxylylene isocyanate. Thereafter, they are warmed to 100° C. and reacted for 5 hours to obtain polyfunctional terminal isocyanate prepolymer (ratio of NCO content 4.1%). Then, the temperature of the product is rendered into 60° C. and 174 parts of β-hydroxyethyl methacrylate is added to conduct the reaction for 2 hours. Thereafter, 130 parts of methylethyl ketoxime is further added to conduct the reaction for 2 hours, whereby there is obtained urethane acrylate.

Workup

  1. customis rendered into 60° C.
  2. customthe reaction for 2 hours
  3. customthe reaction for 2 hours

Sources & evidence

ORD record
ord-f3bdbcb3bb0a43fba0414bebe8a8c802
Source dataset
uspto-grants-2004_08
Patent number
US06774172B1

Reaction notes

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