Method of polymerizing olefins

Details Method of polymerizing olefins Method of polymerizing olefins

1974-12-23

1976-03-02

Smith, Edward J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 937, 260 943, 260 949E, C08F 402, C08F 1002

Patent

active

039417611

ABSTRACT:
Methods of making polymers from polymerizable 1-olefins which comprise polymerizing at least one 1-olefin with a catalyst system consisting essentially of a mixture of (1) a support which is a finely divided insoluble inorganic support material such as silica, alumina, zirconia or thoria or mixtures thereof containing titanium, zirconium or nickel prepared by fluidizing the finely divided support in the form of a bed with a substantially dry gas while adding to the bed at an elevated temperature, while fluidizing, a compound of the class consisting of titanium or zirconium or nickel esters, or halides or mixtures thereof which were further calcined at a higher temperature and (2) an organotin chromate containing the group essentially of the formula ##EQU1## and (3) cocatalytic amounts of an alkyl aluminum compound of the formula R.sub.a AlX.sub.b in each of which formula R is a hydrocarbon radical containing from 1 to about 14 carbon atoms, X is hydrogen, halogen or alkoxy, a is an integer of 1 to 3, b is an integer of 0 to 2 and the sum of a and b is 3, the system having an aluminum-chromium ratio of at least 2 to 1.

REFERENCES:
patent: 2981725 (1961-04-01), Luft et al.
patent: 3031514 (1962-04-01), Kosmin
patent: 3168484 (1965-02-01), Engel et al.
patent: 3646000 (1972-02-01), Horvath
patent: 3780011 (1973-12-01), Pullukat et al.
patent: 3876554 (1975-04-01), Pullukat

Affiliated with

Also associated with

Rating

Method of polymerizing olefins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of polymerizing olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of polymerizing olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1277387