Catalyst activators, processes for making same, and use...

Details Catalyst activators, processes for making same, and use... Catalyst activators, processes for making same, and use...

2011-04-19

2011-04-19

Lu, Caixia (Department: 1765)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C502S103000, C502S120000, C502S152000, C502S156000, C502S167000, C502S224000, C526S127000, C526S143000, C526S147000, C526S160000

Reexamination Certificate

active

07928172

ABSTRACT:
Compositions useful for activating catalysts for olefin polymerization are-provided. The compositions are derived from at least: a) compound derived from at least (i) carrier having at least one pair of hydrogen bonded hydroxyl groups, (ii) organoaluminum compound, and (iii) Lewis base, such that each of a majority of aluminum atoms in the organoaluminum compound forms chemical bonds with at least two oxygen atoms from the at least one pair of hydrogen bonded hydroxyl groups; and b) Bronsted acid, wherein the molar ratio of the Bronsted acid to the organoaluminum compound is less than or equal to about 2:1.

REFERENCES:
patent: 6417302 (2002-07-01), Bohnen
patent: 6482902 (2002-11-01), Bohnen et al.
patent: 2005/0245701 (2005-11-01), Oshima et al.
patent: 2006/0166813 (2006-07-01), Kratzer
patent: 1 300 425 (2003-04-01), None
patent: 6329714 (1994-11-01), None
patent: 2001323009 (2001-11-01), None
patent: 0190112 (2001-11-01), None
patent: 2006124231 (2006-11-01), None
patent: 2007005676 (2007-01-01), None
patent: 2007005921 (2007-01-01), None
patent: 2007076398 (2007-07-01), None
Russell A. Stapleton, et al; Bulky Aluminum Alkyl Scavengers In Olefin Polymerization With Group 4 Catalysts; Journal Of The American Chemical Society; 2003; p. 9246-9247; vol. 125; American Chemical Society, Washington DC, US.

Affiliated with

Also associated with

Rating

Catalyst activators, processes for making same, and use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst activators, processes for making same, and use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst activators, processes for making same, and use... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2701587