Ethylene → Ethene;oct-1-ene

A stirred 3.8 liter reactor was charged with 1440 g of lsopar-E™ mixed alkanes solvent (available from Exxon Chemicals Inc.) and 126 g of 1-octene comonomer. Hydrogen was added as a molecular weight control agent by differential pressure expansion from a 75 mL addition tank at 25 psid (2070 kPa). The reactor was heated to the polymerization temperature of 130° C. and saturated with ethylene at 450 psig (3.1 MPa). Approximately 2.0 μmol each of catalyst and trispentafluorophenylborane cocatalyst as 0.005 M solutions in toluene were premixed in a drybox, transferred to a catalyst addition tank and injected into the reactor over approximately a four minute period. The polymerization conditions were maintained for 10 minutes with ethylene on demand. The resulting solution was removed from the reactor, and a hindered phenol antioxidant (Irganox™ 1010 from Ciba Geigy Corporation) was added to the resulting solution. Polymers formed were dried in a vacuum oven set at 120° C. for about 20 hours. Results are contained in Table 2.

1. additionA stirred 3.8 liter reactor was charged with 1440 g of lsopar-E™
2. additiontransferred to a catalyst addition tank
3. customapproximately a four minute
4. customThe polymerization conditions
5. customThe resulting solution was removed from the reactor
6. additiona hindered phenol antioxidant (Irganox™ 1010 from Ciba Geigy Corporation) was added to the resulting solution
7. customPolymers formed
8. customwere dried in a vacuum oven
9. customResults

ORD record

ord-e3af7ebb8d4d492d83ebd20e1bb14adc

Source dataset

uspto-grants-1999_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05965756