4-Methoxyphenol → HCID 21930543, compound

HRID 381199Notes

Reaction equation

[C:1]([O-:14])(=[O:13])[CH2:2][CH2:3]CCCCCCCCC.[C:15]([O-:28])(=[O:27])[CH2:16][CH2:17]CCCCCCCCC.C([Sn+2]CCCC)CCC.COC1C=CC(O)=CC=1.O=C=[N:49]C1CC(C)(C)CC(C)(CN=C=O)C1.[C:63]([O:67][CH2:68][CH2:69]O)(=[O:66])C=C>C(OCCCC)(=O)C>[C:1]([OH:14])(=[O:13])[CH:2]=[CH2:3].[C:15]([OH:28])(=[O:27])[CH:16]=[CH2:17].[NH2:49][C:63]([O:67][CH2:68][CH3:69])=[O:66]

Participants

Conditions

Temperature: 55 °C

Procedure

Into a 1-liter 3-necked flask provided with a stirrer and thermometer were metered in 425 parts of dodecabutyleneglycol (tradename: PTG-850, manufactured by Hodogaya Chemical Industries Co., Ltd, molecular weight 850), 0.43 parts of di-n-butyltin dilaurate, 0.4 parts of hydroquinone monomethylether, followed by stirring at 55° C. and adding dropwise, 222 parts of isophorone diisocyanate in 3 hours. After completion of the dropwise addition, the reaction was further continued for 3 hours at 70° C. and then temperature was reduced to 60° C., then 122 parts of 2-hydroxyethyl acrylate was added dropwise in 2 hours. Since the viscosity increased, 193 parts of n-butyl acetate was added and the reaction was continued for 5 hours at 70° C. to give an urethane diacrylate (UPA-2) with a solids concentration of 80% by weight.

Workup

customInto a 1-liter 3-necked flask provided with a stirrer
additionadding dropwise
additionAfter completion of the dropwise addition
customwas reduced to 60° C.
temperatureSince the viscosity increased
waitthe reaction was continued for 5 hours at 70° C.

Sources & evidence

ORD record: ord-25db3c0976104457a5855e41a877733b
Source dataset: uspto-grants-2001_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06306502B1

Reaction notes

Loading…