Process for producing polyolefins

Details Process for producing polyolefins Process for producing polyolefins

1995-09-15

1996-06-18

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526106, 526118, 526134, 526138, 5263482, 5263484, 5263485, 5263486, 526352, 502256, 502152, C08F 424

Patent

active

055278671

ABSTRACT:
A process is provided to produce polyolefins having a multimodal molecular weight distribution at the molecular level by contacting at least one mono-1-olefin in a polymerization zone, under polymerization conditions, with dual site supported chromium polymerization catalyst system. Such a polymerization catalyst system comprises an inorganic oxide supported chromium oxide catalyst system and a chromocene compound, wherein the supported catalyst system and chromocene compound are contacted in a polymerization reactor. The resultant, recovered polymer has at least a bimodal, or broad, molecular weight distribution.

REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 3806500 (1974-04-01), Karol
patent: 3887494 (1975-06-01), Dietz
patent: 4364839 (1982-12-01), McDaniel et al.
patent: 4364841 (1982-12-01), McDaniel et al.
patent: 4364842 (1982-12-01), McDaniel et al.
patent: 4364843 (1982-12-01), Carlson
patent: 4364854 (1982-12-01), McDaniel et al.
patent: 4364855 (1982-12-01), McDaniel et al.
patent: 4397765 (1983-08-01), McDaniel
patent: 4402864 (1983-09-01), McDaniel
patent: 4405768 (1983-09-01), McDaniel
patent: 4424139 (1984-01-01), McDaniel et al.
patent: 4444962 (1984-04-01), McDaniel et al.
patent: 4444963 (1984-04-01), McDaniel et al.
patent: 4444964 (1984-04-01), McDaniel et al.
patent: 4444965 (1984-04-01), McDaniel et al.
patent: 4444966 (1984-04-01), McDaniel
patent: 4444968 (1984-04-01), McDaniel et al.
patent: 4504638 (1985-03-01), McDaniel et al.
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4547479 (1985-10-01), Johnson et al.
patent: 4640964 (1987-02-01), Johnson et al.
patent: 4659690 (1987-04-01), McDaniel et al.
patent: 4668808 (1987-05-01), Smith
patent: 4690990 (1987-09-01), McDaniel et al.
patent: 4788171 (1988-11-01), Klendworth
patent: 4803253 (1989-02-01), McDaniel et al.
patent: 4806513 (1989-02-01), McDaniel et al.
patent: 4900704 (1990-02-01), McDaniel et al.
patent: 4935474 (1990-06-01), Ewen et al.
patent: 4939217 (1990-07-01), Stricklen
patent: 4960748 (1990-10-01), Klendworth et al.
patent: 4975403 (1990-12-01), Ewen
patent: 5001204 (1991-03-01), Klendworth et al.
patent: 5010152 (1991-04-01), McDaniel et al.
patent: 5032562 (1991-07-01), Lo et al.
patent: 5032651 (1991-07-01), McDaniel et al.
patent: 5064797 (1991-12-01), Stricklen
patent: 5087789 (1992-02-01), McDaniel et al.
patent: 5104839 (1992-04-01), McDaniel et al.
patent: 5104841 (1992-04-01), Conroy et al.
patent: 5110214 (1992-05-01), Battiste et al.
patent: 5137997 (1992-08-01), Conroy et al.
patent: 5183868 (1993-02-01), Nordquest

Affiliated with

Also associated with

Rating

Process for producing polyolefins does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-223515