Olefin polymerization method

Details Olefin polymerization method Olefin polymerization method

1993-02-24

1994-11-29

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526125, 526129, 526153, 5263486, 526352, 502113, C08F 206, C08F 464, C08F 468

Patent

active

053691946

ABSTRACT:
A multiple site solid catalyst component capable of producing polyolefins having a broad or multimodal molecular weight distribution, such as a bimodal molecular weight distribution, is prepared by contacting a particulate solid support with a zirconium compound or complex to bind the zirconium compound or complex to the support, optionally followed by contacting the supported zirconium compound or complex with a Lewis acid to produce an intermediate product, optionally isolating and washing the supported zirconium compound or complex or resulting intermediate product to remove soluble by-products therefrom, and reacting the washed or unwashed supported zirconium compound or complex or intermediate product with a titanium or vanadium compound to produce a solid catalyst component.

REFERENCES:
patent: 4325835 (1982-04-01), Hartshorn et al.
patent: 4381253 (1983-04-01), Shipley
patent: 4435518 (1984-03-01), Pennington et al.
patent: 4554265 (1985-11-01), Graves
patent: 4578373 (1986-03-01), Graves
patent: 4611038 (1986-09-01), Brun et al.
patent: 4659685 (1987-04-01), Coleman, III et al.
patent: 4672096 (1987-06-01), Nowlin
patent: 4701432 (1987-10-01), Welborn, Jr.
patent: 4710552 (1987-12-01), Bachl et al.
patent: 4831090 (1989-05-01), Bachl et al.
patent: 4866021 (1989-09-01), Miro et al.
patent: 4918038 (1990-04-01), Samuels et al.
patent: 5070055 (1991-12-01), Schramm et al.
Chemical Abstracts, vol. 94, No. 8 (Apr. 1981), abstract No. 122291g.

Affiliated with

Also associated with

Rating

Olefin polymerization method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-74963