Ethylene → HCID 86758380, compound

HRID 488027Notes

Reaction equation

HRID 488027 reaction equation
C=C.[C:3]([O:6][CH:7]=[CH2:8])(=[O:5])[CH3:4].[C:9]([OH:13])(=[O:12])[CH:10]=[CH2:11].C([O-])(=O)C=C>C(O)(C)(C)C>[CH2:3]=[CH2:4].[C:3]([O:6][CH:7]=[CH2:8])(=[O:5])[CH3:4].[C:9]([OH:13])(=[O:12])[CH:10]=[CH2:11]

Participants

6

Reactant 4

HCID 6325Ethylene4×HCID 6581Acrylic AcidHCID 7904Vinyl Acetate2×HCID 25188Acrylate

Product 1

HCID 86758380HCID 86758380, compound

Reagents, catalysts & solvents 1

HCID 6386tert-ButanolSolvent2×

Procedure

The cascade of autoclaves of example 1 is continuously charged with 458 g/h of ethylene, a mixture A (2000 ml/h) consisting of 9000 g of vinyl acetate (d=0.79 g/ml), 9000 g of tert.-butanol and 180 g of acrylic acid (d=1.051 g/ml) and an initiator solution B (120 ml/h) consisting of 600 g of vinyl acetate, 600 g of tert.-butanol and 9 g tert.-butyl perpivalate. The monomers or monomer mixtures (mixture A, initiator solution B and ethylene) are introduced into autoclave 1 via the premix autoclave. The product stream passes through all autoclaves. The internal reactor temperatures are T1=67° C., T2=70° C., T3=73° C. and T4=80° C. The operating pressure is 300 bar. When equilibrium is reached samples are taken from the individual autoclaves through sluices. Unused ethylene is depressurised with caution and discharged. The degassed samples have solids contents of 15 to 40% by weight. The Mooney viscosity is 14(ML-4/100° C.); (VA content: 75% by weight, ethylene content: 20% by weight, acrylate content: 5% by weight). The average residence time was 7 hours.

Workup

  1. customT1=67° C.
  2. customT2=70° C.
  3. customT3=73° C.
  4. customT4=80° C
  5. custom100° C.

Sources & evidence

ORD record
ord-d54ffbb2284644ecbb2f31d3cd26e6c4
Source dataset
uspto-grants-1994_03
Patent number
US05298577

Reaction notes

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