Olefin polymerization process

Details Olefin polymerization process Olefin polymerization process

1999-04-29

2000-10-03

Nutter, Nathan M.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525240, C08F 800, C08L 2300, C08L 2304

Patent

active

061274844

ABSTRACT:
A multiple stage or multiple zone process for making olefin polymers is disclosed. A single-site catalyst, preferably one that contains a heteroatomic ligand, is used in the first stage or zone, and a Ziegler-Natta catalyst is used at a higher temperature in later stages or zones. A parallel multiple zone process is also described. The processes, which can be performed adiabatically, give polymers with improved thermal processing ability.

REFERENCES:
patent: 4016342 (1977-04-01), Wagensommer
patent: 4368291 (1983-01-01), Frese et al.
patent: 4483938 (1984-11-01), Rees
patent: 5064802 (1991-11-01), Stevens et al.
patent: 5236998 (1993-08-01), Lundeen et al.
patent: 5326835 (1994-07-01), Ahvenainen et al.
patent: 5442018 (1995-08-01), Cann et al.
patent: 5539124 (1996-07-01), Etherton et al.
patent: 5554775 (1996-09-01), Krishnamurti et al.
patent: 5599761 (1997-02-01), Turner
patent: 5637659 (1997-06-01), Krishnamurti et al.
patent: 5747594 (1998-05-01), deGroot et al.
patent: 5756611 (1998-05-01), Etherton et al.
patent: 5869575 (1999-02-01), Kolthammer et al.
patent: 6034165 (2000-03-01), Tomomatsu et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-196841