Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2006-02-28
2006-02-28
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S125000, C502S127000, C502S128000, C502S133000
Reexamination Certificate
active
07005399
ABSTRACT:
An olefin polymerization catalyst comprising: (A) a solid catalyst component prepared by contacting (a) a dialkoxyl magnesium, (b) a tetra-valent titanium halide, and (c) a phthalic acid diester in (d) an aromatic hydrocarbon having a boiling point in the range of 50 to 150° C., (B) an organoaluminum compound of the formula R1pAlQ3−p, one or more compounds selected from the group consisting of (C) one or more halogen-containing organosilicon compounds selected from (C1) a halogen-containing organosilicon compound of the formula R21Si(OR3)4−l−mXmand (C2) a halogen-containing organosilicon compound of the formula R4qSi(OR5)4−q, and (D) an organosilicon compound of the formula R6sSi(OR7)4−s. The catalyst exhibits excellent activity to hydrogen and the same catalytic activity and yield performance as conventional catalysts, and possesses the capability of producing polymers with stereoregularity equivalent to conventional catalysts.
REFERENCES:
patent: 5498770 (1996-03-01), Hosaka et al.
patent: 5684173 (1997-11-01), Hosaka et al.
patent: 5932510 (1999-08-01), Hosaka et al.
patent: 5965478 (1999-10-01), Goto et al.
patent: 6156690 (2000-12-01), Hosaka et al.
patent: 6228793 (2001-05-01), Hosaka et al.
patent: 6689849 (2004-02-01), Sadashima et al.
patent: 6800580 (2004-10-01), Yang et al.
patent: 6806222 (2004-10-01), Yashiki et al.
patent: 0452916 (1991-10-01), None
patent: 0844260 (1998-05-01), None
patent: 61-103910 (1986-05-01), None
patent: 51-171715 (1986-08-01), None
patent: 62-025110 (1987-02-01), None
patent: 01-240507 (1989-09-01), None
patent: 06-100639 (1994-04-01), None
patent: 10-195125 (1998-07-01), None
patent: 10-218932 (1998-08-01), None
Lorengo J. A.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Pasterczyk J.
Toho Titanium Co., Ltd.
LandOfFree
Catalyst for polymerization of olefins 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 for polymerization of olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst for polymerization of olefins will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3651908