Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-09-06
2005-09-06
Lu, Caixia (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S132000, C526S133000, C526S347000, C526S165000, C526S943000
Reexamination Certificate
active
06939929
ABSTRACT:
The α-olefin-aromatic vinyl compound copolymer of the present invention is obtained by using a transition metal compound represented by the following Formula (1) and a promoter component to carry out copolymerization, and it is a novel α-olefin-aromatic vinyl compound copolymer having a low alternating property and a high blocking property, particularly a high blocking property related to the aromatic vinyl compound:wherein A1and A2represent a cyclopentadienyl group, a substituted cyclopentadienyl group or the like; Y1and Y2represent a substituted or unsubstituted alkylene group or the like, and at least one of them is the substituted or unsubstituted alkylene group; M1represents titanium or the like; X1and X2represent a hydrogen atom, a halogen atom or the like.
REFERENCES:
patent: 5854165 (1998-12-01), Yabunouchi et al.
patent: 6107232 (2000-08-01), Yokota
patent: 6171994 (2001-01-01), Yabunouchi et al.
patent: 6235855 (2001-05-01), Arai et al.
patent: 6339135 (2002-01-01), Kashiwamura et al.
patent: 6423807 (2002-07-01), Oi et al.
patent: 0 416 815 (1991-03-01), None
patent: 0 872 492 (1998-10-01), None
patent: 970976 (2000-01-01), None
patent: 0 985 689 (2000-03-01), None
patent: 3-163088 (1991-07-01), None
patent: 11-199614 (1999-07-01), None
patent: 11-199623 (1999-07-01), None
patent: 2000-119337 (2000-04-01), None
F. G. Sernetz, et al., Macromolecules, vol. 30, No. 6, pp. 1562-1569, XP-000682472, “Copolymerization of Ethene With Styrene Using Methylaluminoxane-Activated Bis(Phenolate) Complexes”, 1997.
F. G. Sernetz, et al., Journal of Polymer Science, vol. 35, No. 8, pp. 1571-1578, XP-002124938, “Copolymerization of Ethene With Styrene Using Different Methylalumoxane Activated Half-Sandwich Complexes”, 1997.
T. Arai, et al., Macromolecular: Rapid Communications, vol. 19, No. 6, pp. 327-331, XP-000777591, “Stereoregular and Bernoullian Copolymerization of Styrene and Ethylene by Bridged Metallocene Catalysts”, 1998.
F. G. Sernetz, et al., Journal of Polymer Science, vol. 35, No. 13, pp. 2549-2560, XP-00721378, “Metallocene-Catalyzed Ethene/Styrene Co- and Terpolymerization With Olefinic Termonomers”, Sep. 30, 1997.
Ishihara Nobuhide
Kanesaki Takashi
Tani Noriyuki
Yokota Kiyohiko
Idemitsu Kosan Co. Ltd.
Lu Caixia
LandOfFree
Alpha-olefin-aromatic vinyl copolymer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alpha-olefin-aromatic vinyl copolymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alpha-olefin-aromatic vinyl copolymer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3427698