Process for polymerizing 1-hexene or higher alpha-olefins

Details Process for polymerizing 1-hexene or higher alpha-olefins Process for polymerizing 1-hexene or higher alpha-olefins

2011-05-17

2011-05-17

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...

C526S160000, C526S161000, C526S165000, C526S348600, C526S943000

Reexamination Certificate

active

07943716

ABSTRACT:
A process for preparing a polymer containing derived units of one or more alpha olefins of formula CH2═CHW wherein W is a C3-C10hydrocarbon radical and optionally from 0 to 81% by mol of derived units of propylene or 1-butene, comprising contacting under polymerization conditions one or more alpha olefins of formula CH2═CHW and optionally propylene or1-butene in the presence of a catalyst system obtainable by contacting:a) a metallocene compound of formula (I)wherein M, X, L, T1, T2, T3and R1are described in the text; and(b) an alumoxane or a compound capable of forming an alkyl metallocene cation.

REFERENCES:
patent: 5043515 (1991-08-01), Slaugh et al.
patent: 5066631 (1991-11-01), Sangokoya et al.
patent: 5145819 (1992-09-01), Winter et al.
patent: 5239022 (1993-08-01), Winter et al.
patent: 5243001 (1993-09-01), Winter et al.
patent: 5324800 (1994-06-01), Welborn, Jr. et al.
patent: 5556928 (1996-09-01), Devore et al.
patent: 5847177 (1998-12-01), Sangokoya et al.
patent: 6232421 (2001-05-01), Fujita et al.
patent: RE37384 (2001-09-01), Winter et al.
patent: 6444607 (2002-09-01), Gonioukh et al.
patent: 6566544 (2003-05-01), Waymouth et al.
patent: 6664208 (2003-12-01), Fujita et al.
patent: 6953829 (2005-10-01), Kratzer et al.
patent: 7101940 (2006-09-01), Schottek et al.
patent: 2220243 (1997-09-01), None
patent: 19962814 (2001-06-01), None
patent: 19962910 (2001-07-01), None
patent: 129368 (1984-12-01), None
patent: 172961 (1986-03-01), None
patent: 480390 (1992-04-01), None
patent: 485820 (1992-05-01), None
patent: 485822 (1992-05-01), None
patent: 485823 (1992-05-01), None
patent: 604908 (1994-07-01), None
patent: 707016 (1996-04-01), None
patent: 999725 (1965-07-01), None
patent: 91/02012 (1991-02-01), None
patent: 92/00333 (1992-01-01), None
patent: 96/22995 (1996-08-01), None
patent: 98/18801 (1998-05-01), None
patent: 98/22486 (1998-05-01), None
patent: 99/21899 (1999-05-01), None
patent: 99/24446 (1999-05-01), None
patent: 99/58539 (1999-11-01), None
patent: 01/21674 (2001-03-01), None
patent: 01/44318 (2001-06-01), None
patent: 01/46278 (2001-06-01), None
patent: 01/47939 (2001-07-01), None
patent: 01/62764 (2001-08-01), None
patent: 03/045964 (2003-06-01), None
D. Coevoet et al., “Activation of iPr(CpFluo)ZrCl2by methylaluminoxane, 3a-Kinetic investigation of the syndiospecific hex-1-ene polymerization in hydrocarbon and chlorinated media,”Macromol. Chem. Phys. 200, p. 1208-1214 (1999).
Y. Yamaguchi et al., “Stereospecific Polymerization of 1-Hexene Catalyzed byansa-metallocene/-methylaluminoxane Systems under High Pressure,”Journal of Polymer Science: Part A: Polymer Chemistry, vol. 37, p. 283-292 (1999).
V. Grumel et al., “Homopolymerization of Higher 1-Olefins with Metallocene/MAO Catalysts,”Macromolecular Materials&Engineering, vol. 286, p. 480-487 (2001).
M. Arnold et al., “Copolymerization of propene and higher α-olefins with the metallocene catalyst Et[Ind]2HfC12a)/methylaluminoxane,”Macromol. Chem. Phys., vol. 197, p. 563-573 (1996).
R. Thomann et al., “Crystallisation of syndiotactic poly(propene-co-octene),”Polymer, vol. 39(10), p. 1907-1915 (1998).
T. Sugano et al., “Effect of catalyst isospecificity on the copolymerization of propene with 1-hexene,”Makromol. Chem., vol. 193, p. 43-51 (1992).

Affiliated with

Also associated with

Rating

Process for polymerizing 1-hexene or higher alpha-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 Process for polymerizing 1-hexene or higher alpha-olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for polymerizing 1-hexene or higher alpha-olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2684169