Method of making polymers and copolymers of 1-olefins

Details Method of making polymers and copolymers of 1-olefins Method of making polymers and copolymers of 1-olefins

1977-05-16

1979-04-03

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526106, 526113, 526123, 526126, 526130, 526154, 526352, C08F 402, C08F 1002

Patent

active

041478495

ABSTRACT:
A new catalyst and a method of polymerizing olefins in which the catalyst is prepared by forming a mixture by dispersing on a finely divided, difficult to reduce, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, magnesia and mixtures or composites thereof, an organic chromium compound pyrolytically decomposable in the substantial absence of oxygen to deposit a catalytically active residue along with a carbon residue as a contaminant on the support, then activating the mixture by subjecting the mixture to non-oxidative pyrolysis to and at a temperature within the range of about 600.degree.-2000.degree. F., thereby depositing on the support the chromium-bearing residue and carbon residue as a by-product from the pyrolytic decomposition of the organic chromium compound, and subjecting the activated catalyst after this activating to heat and an oxidizing gas such as air, oxygen, carbon dioxide, nitrous oxide, and the like, to burn off a substantial amount of the carbon residue and to modify and improve the characteristics of the activated catalyst.

REFERENCES:
patent: 3324101 (1967-06-01), Baker et al.
patent: 3349067 (1967-10-01), Hill
patent: 3752795 (1973-08-01), Boone
patent: 3806500 (1974-04-01), Karol
patent: 3875132 (1975-04-01), Kruse
patent: 3953413 (1976-04-01), Hwang et al.
patent: 4041224 (1977-08-01), Hoff et al.

Affiliated with

Also associated with

Rating

Method of making polymers and copolymers of 1-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 making polymers and copolymers of 1-olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making polymers and copolymers of 1-olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1747263