Heptane → Ethene propene 1-butene

Temperature

60 °C

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, 40 g of 1-butene (2% by weight) and 40 g of ethene (2% by weight) were metered in. At room temperature, 790 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 the mixture was polymerized for 90 minutes at this temperature. 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. 680 g of polymer powder were obtained (productivity: 860 g of terpolymer/g of catalyst). The proportion of regioregular ′1-2′-inserted propene units in the terpolymer obtained corresponding to formula (1) is 99.28.

1. customhad been flushed with N2
2. additionAfter addition of 150 mg of antistatic solution (Stadis® 450, Du Pont), 2000 g of liquid propene, 40 g of 1-butene (2% by weight) and 40 g of ethene (2% by weight)
3. customAt room temperature
4. customthe mixture was polymerized for 90 minutes at this temperature
5. customthe product was discharged via a bottom discharge valve

ORD record

ord-32ff190ecc214002b9fea63578b3e5db

Source dataset

uspto-grants-2003_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06583253B1