Manufacturing method of polyolefin

Details Manufacturing method of polyolefin Manufacturing method of polyolefin

2004-07-29

2009-02-03

Jagannathan, Vasu (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S170000, C526S071000, C526S059000, C526S943000

Reexamination Certificate

active

07485686

ABSTRACT:
A large-scale and efficient industrialization of olefin polymerization by metallocene catalysts is realized by, in olefin polymerization by metallocene-based catalysts, increasing catalytic activity and polymerization efficiency to sufficiently bring out the performances of the metallocene catalysts and maintain a stable polymerization reaction. The amount of a halogen-containing compound is controlled so that the gram-atomic amount ratio to a transition metal of a halogen atom in a halogen-containing compound in solvents and materials other than a halogen atom in a catalyst component is 0.8 or less, in manufacturing plants of commercial level in an olefin polymerization by a metallocene catalyst.

REFERENCES:
patent: 3013002 (1961-12-01), Breslow et al.
patent: 3600463 (1971-08-01), Hagemeyer, Jr. et al.
patent: 5183943 (1993-02-01), Bryant et al.
patent: 6355592 (2002-03-01), Hlatky et al.
patent: 7141630 (2006-11-01), Vizzini et al.
patent: 7153909 (2006-12-01), Van Dun et al.
patent: 2004/0072972 (2004-04-01), Vizzini et al.
patent: 949 278 (1999-10-01), None
patent: 63-168407 (1988-07-01), None
patent: 3-31304 (1991-02-01), None
patent: 3-234709 (1991-10-01), None
patent: 5-140227 (1993-06-01), None
patent: 5-209013 (1993-08-01), None
patent: 5-247128 (1993-09-01), None
patent: 6-206924 (1994-07-01), None
patent: 7-97388 (1995-04-01), None
patent: 7-509753 (1995-10-01), None
patent: 8-3226 (1996-01-01), None
patent: 8-34749 (1996-02-01), None
patent: 9-47602 (1997-02-01), None
patent: 10-87742 (1998-04-01), None
patent: 11-49812 (1999-02-01), None
patent: 11-60623 (1999-03-01), None
patent: 11-140112 (1999-05-01), None
patent: 11-510545 (1999-09-01), None
patent: 2001-62202 (2001-03-01), None
patent: 2001-206914 (2001-07-01), None
patent: 2001-253906 (2001-09-01), None
Leino et al. Organometallics 1996, 15, 2450-2453.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4125502