Ethylene → Ethene propene 1-butene
Reaction equation
[CH2:1]([Al](C[CH:11]([CH3:13])[CH3:12])CC(C)C)[CH:2](C)[CH3:3].[CH2:14]=[CH2:15]>CCCCCCC>[CH2:1]=[CH:2][CH3:3].[CH2:14]=[CH2:15].[CH2:14]=[CH:13][CH2:11][CH3:12]Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 60 °C
Procedure
20 mmol of triisobutylaluminum (TiBA, 10 ml of a 2 molar solution in heptane) were placed in a dry 10 l autoclave which had been flushed with N2. After addition of 150 mg of antistatic solution (Stadis® 450, Du Pont), 2000 g of liquid propene and 40 g of 1-butene (2% by weight) were metered in. At room temperature, 815 mg of the supported metallocene catalyst prepared in Example 1 were then blown in via a lock by means of N2. The autoclave was subsequently heated to 60° C. and polymerization was carried out for 90 minutes at this temperature. During the polymerization, 27 g/h of ethene were metered in continuously, i.e. a total of 40 g (2% by weight). After this reaction time had expired, the polymerization was stopped by blowing-off the remaining monomer mixture and the product was discharged via a bottom discharge valve. 1120 g of polymer powder were obtained (productivity: 1370 g of terpolymer/g of catalyst). The proportion of regioregular ′1-2′-inserted propene units in the terpolymer obtained corresponding to formula (1) is 99.24.
Workup
- customhad been flushed with N2
- additionAfter addition of 150 mg of antistatic solution (Stadis® 450, Du Pont), 2000 g of liquid propene and 40 g of 1-butene (2% by weight)
- customAt room temperature
- custompolymerization
- customthe product was discharged via a bottom discharge valve
Sources & evidence
- ORD record
- ord-58ca1418636c464598f71492271a680b
- Source dataset
- uspto-grants-2003_06
- Patent number
- US06583253B1
Reaction notes
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