Process for the oligomerization of α-olefins having...

Details Process for the oligomerization of α-olefins having... Process for the oligomerization of α-olefins having...

2006-10-31

2006-10-31

Choi, Ling-Sui (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348300, C526S160000, C526S943000

Reexamination Certificate

active

07129306

ABSTRACT:
A process is disclosed for the preparation of a poly(α-olefin) polymer wherein the process comprises polymerizing at least one α-olefin in the presence of hydrogen and a catalytically effective amount of catalyst comprising the product obtained by combining a metallocene catalyst with a cocatalyst, the metallocene catalyst being at least one meso compound of general formula:wherein:A1and A2are independently selected from the group consisting of mononuclear and polynuclear hydrocarbons;M1is a metal from group IVb, Vb, or VIb of the Periodic Table;R1and R2are independently selected from the group consisting of hydrogen, C1–C10alkyl, C1–C10-alkoxy, C6–C10aryl, C6–C10aryloxy, C2–C10alkenyl, C7–C40arylalkyl, C7–C40alkylaryl, C8–C40arylalkenyl and halogen; R7is selected from the group consisting of:═BR11, ═AlR11, —Ge—, —Sn—, —O—, —S—, ═SO, ═SO2, ═NR11, ═CO, ═PR11and ═P(O)R11, whereR11, R12, and R13are independently selected from the group consisting of hydrogen, halogen, C1–C10alkyl, C1–C10fluoroalkyl, C6–C10aryl, C6–C10fluoroaryl, C1–C10alkoxy, C2–C10alkenyl, C7–C40arylalkyl, C8–C40arylalkenyl, and C7–C40alkylaryl, or R11and R12or R11and R13, in each case with the atoms connecting them, form a ring; and M2is selected from the group consisting of silicon, germanium, and tin;R8and R9are independently selected from the group consisting of hydrogen, halogen, C1–C10alkyl, C1–C10fluoroalkyl, C6–C10aryl, C6–C10fluoroaryl, C1–C10alkoxy, C2–C10alkenyl, C7–C40arylalkyl, C8–C40arylalkenyl, and C7–C40alkylaryl;m and n are identical or different and are zero, 1, or 2, with m plus n being zero, 1 or 2.

REFERENCES:
patent: 5145819 (1992-09-01), Winter et al.
patent: 5229478 (1993-07-01), Floyd et al.
patent: 5455365 (1995-10-01), Winter et al.
patent: 5504232 (1996-04-01), Winter et al.
patent: 5672668 (1997-09-01), Winter et al.
patent: 5688887 (1997-11-01), Bagheri et al.
patent: 5763542 (1998-06-01), Winter et al.
patent: 5929185 (1999-07-01), Rosch et al.
patent: 6043401 (2000-03-01), Bagheri et al.
patent: 6359095 (2002-03-01), Winter et al.
patent: 2001/0041817 (2001-11-01), Bagheri et al.
patent: 2002/0010290 (2002-01-01), Minami et al.
patent: 19823172 (1999-11-01), None
patent: 0613873 (1994-09-01), None
patent: 0748824 (1996-12-01), None
patent: 0719802 (1998-07-01), None
patent: 1164146 (2001-12-01), None
patent: 96/23751 (1996-08-01), None
patent: 98/52888 (1998-11-01), None
patent: WO99/67347 (1999-12-01), None
patent: 00/08066 (2000-02-01), None
patent: 00/08077 (2000-02-01), None
patent: WO02/14384 (2002-02-01), None
Grumel et al., Macromol. Mater. Eng., 286,480-487(2001).
Ewen, J. Am. Chem. Soc., 106, 6355-6364(1984).
Ewen J., J. Am. Chem. Soc., 106:6355-6364 (1984).
Herrmann W. et al., Angew. Chem. Int. Ed. Engl., 28:1511-1512 (1989).
Speleck W. et al., New J. Chem., 14:499-503 (1990).
Collins S. et al., Organometallics, 10:2061-2068 (1991).
Pena A. et al., Macromol. Rapid Commun; 12:353-358 (1991).
Spaleck W. et al., Angew. Chem. Int. Ed. Engl., 31:1347-1350 (1992).
Spaleck W. et al., Macromal. Symp., 89:237-247 (1995).
Uozumi-T. et al., Macromol. Rapid Commun., 18:883-889 (1997).
Naga N. et al., Macromol. Chem. Phys. 200:1587-1594 (1999).
Resconi L., in Metallocene-catalyzed Polymers, Preparation Properties and Technology, Kaminsky W. Scheirs J. Eds.; Wiley, vol. 1 pp. 467-484 (1999).
Schaverien C. et al., Organometallics, 20:3436-3452 (2001).
Brull R. et al., Macromol. Symp., 165:11-18 (2001).
Grumel V. et al., Macromol. Mater. Eng., 286:480-487 (2001).
Unsaturation in Isoprene-Isobutylene Copolymers, Industrial and Engineering Chemistry, 40:1277-1280 (1948).
“Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins” by Schaverien et al. Organometallics, ACS. Columbus, OH. vol. 20, No. 16. pp. 3436-3452 (Aug. 2001).

Affiliated with

Also associated with

Rating

Process for the oligomerization of α-olefins having... 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 the oligomerization of α-olefins having..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the oligomerization of α-olefins having... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3706677