Urea → Styrene

HRID 461924

Reaction equation

HRID 461924 reaction equation
[C:1]1([CH:7]([C:9]2[C:10]([CH:16](C3C=CC=CC=3)C)=[C:11]([OH:15])[CH:12]=[CH:13][CH:14]=2)[CH3:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:24]1[O:27][CH:25]1[CH3:26].[CH2:28]1OC1.[NH2:31][C:32](N)=[O:33].P(O)([O-])([O-])=O.[NH4+].[NH4+]>O>[C:24]([O:15][CH2:11][CH2:12][CH2:13][CH3:14])(=[O:27])[CH:25]=[CH2:26].[CH2:8]=[CH:7][C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:11]([O:33][CH2:32][CH3:28])(=[O:15])[CH:10]=[CH2:9].[CH2:32]([NH:31][C:11](=[O:15])[C:10]([CH3:16])=[CH2:9])[OH:33]

Participants

10

Reactant 5

HCID 1176UreaHCID 6354Ethylene OxideHCID 6378Propylene OxideHCID 24540Diammonium hydrogen phosphateHCID 190103942,3-Bis(1-phenylethyl)phenol

Product 4

HCID 7501StyreneHCID 8821Ethyl AcrylateHCID 8846Butyl AcrylateHCID 70208Methylolmethacrylamide

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

5 parts of sodium polyacrylate (molecular weight about 200,000) are dissolved in 277 parts of water. 5 parts of the oxyalkylation product obtained by reacting 1 mole of di-(α-phenylethyl)-phenol first with 7 moles of propylene oxide and then with 20 moles of ethylene oxide, 10 parts of urea and 3 parts of diammonium phosphate are added to the solution. After a brief period, a homogeneous mixture is obtained, to which 500 parts of gasoline (boiling range 140° - 200° C) and 200 parts of a 40% strength aqueous dispersion of a copolymer of 65 parts of butyl acrylate, 24 parts of styrene, 6 parts of ethyl acrylate and 5 parts of N-methylolmethacrylamide are added, with vigorous stirring (3,000 rmp). A very stable oil-in-water emulsion is obtained, which is particularly suitable for use as a carrier for organic pigments.

Workup

  1. custom5 parts of the oxyalkylation product obtained
  2. waitAfter a brief period

Sources & evidence

ORD record
ord-98873e09020145e3b723efc4ce3ef548
Source dataset
uspto-grants-1977_12
Patent number
US04064309

Linked notes

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