Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2007-02-13
2007-02-13
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...
C526S943000, C526S161000, C526S155000, C526S171000, C526S348000, C502S080000, C502S152000, C502S104000, C502S108000, C502S132000
Reexamination Certificate
active
10889117
ABSTRACT:
A catalyst for polymerizing vinyl compounds or α-olefins according to the present invention includes (A) a transition metal complex, (B) a clay, clay mineral or ion-exchangeable layered compound, modified with at least one organic compound selected from the group consisting of quaternary ammonium salts, amine compounds, and adducts of amine and Brönsted acid, and (C) at least one aluminoxy compound. The transition metal in (A) is selected from Groups 4 to 10 or Groups 8 to 10 of the Periodic Table for catalysts for vinyl compounds or α-olefins, respectively. The aluminoxy compound is represented by the general Formulawherein a plurality of R groups are each independently C1-10hydrocarbon group and at least one of the R groups is a hydrocarbon group having 2 or more carbon atoms; and z is an integer of 2 or more for catalyst for vinyl compounds and 2 to 4 for catalysts for α-olefins.
REFERENCES:
patent: 5308811 (1994-05-01), Suga et al.
patent: 6335405 (2002-01-01), Okuda et al.
patent: 6555633 (2003-04-01), Tanaka et al.
patent: 6835788 (2004-12-01), Sato et al.
patent: 0 511 665 (1992-11-01), None
patent: 511665 (1992-11-01), None
patent: 0 849 292 (1998-06-01), None
patent: 0 945 471 (1999-09-01), None
patent: 945471 (1999-09-01), None
patent: 5-25214 (1993-02-01), None
patent: 7-149671 (1995-06-01), None
patent: 10-204114 (1998-08-01), None
patent: 11-335408 (1999-07-01), None
patent: 99/48930 (1999-09-01), None
patent: 00/43123 (2000-07-01), None
patent: 00/76659 (2000-12-01), None
Kuramoto Masahiko
Sato Haruhito
Watanabe Masami
Choi Ling-Sui
Idemitsu Kosan Co. Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
LandOfFree
Catalyst for vinyl compound polymerization and process for... 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 vinyl compound polymerization and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst for vinyl compound polymerization and process for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3888520