Catalyst systems based on transition metal complexes for...

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C502S167000, C502S171000, C528S392000

Reexamination Certificate

active

06852662

ABSTRACT:
Catalyst systems for the copolymerization of carbon monoxide and α-olefinically unsaturated compounds contain, as essential components,a) a metal complex of the formula (I) where R1to R4are each linear or branched C2- to C28-alkyl, C3- to C14-cycloalkyl or alkylaryl where the alkyl moiety is of 1 to 28 carbon atoms and the aryl moiety is of 6 to 15 carbon atoms, each of which is substituted by at least one polar protic or ionic functional group based on elements of groups IVA to VIA of the Periodic Table of Elements, andb) if required, one or more Lewis or protic acids or a mixture of Lewis and protic acids.

REFERENCES:
patent: 5171832 (1992-12-01), Keijsper
patent: 5175244 (1992-12-01), Budzelaar et al.
patent: 5247065 (1993-09-01), van Doorn et al.
patent: 5352767 (1994-10-01), Chien
patent: 5369073 (1994-11-01), Somazzi et al.
patent: 5488096 (1996-01-01), Drent et al.
patent: 5506338 (1996-04-01), Hanna et al.
patent: 5521281 (1996-05-01), Sen et al.
patent: 5631345 (1997-05-01), Takaya et al.
patent: 5654250 (1997-08-01), Van Der Veer et al.
patent: 5670610 (1997-09-01), Somazzi et al.
patent: 5688909 (1997-11-01), Drent et al.
patent: 5830989 (1998-11-01), Cooley et al.
patent: 5952456 (1999-09-01), Bradford et al.
patent: 6541564 (2003-04-01), Schmid et al.
patent: 121965 (1984-10-01), None
patent: 280374 (1988-08-01), None
patent: 296687 (1988-12-01), None
patent: 305011 (1989-03-01), None
patent: 357101 (1990-03-01), None
patent: 428228 (1991-05-01), None
patent: 460743 (1991-12-01), None
patent: 485035 (1992-05-01), None
patent: 590942 (1994-04-01), None
patent: 702045 (1996-03-01), None
patent: 792902 (1997-09-01), None
patent: 800852 (1997-10-01), None
patent: 9822482 (1998-05-01), None
patent: 9825939 (1998-06-01), None
Drent et al.,Chem. Rev., 1996, 96, 663-681.
Jiang et al.,Macromolecules, 1994, 27, 7215-7216.
Verspui et al.,Chem. Commun., 1998, 401-402.
Herrmann et al,.Chem.Int.Ed.Engl., 1995, 37:7, 811-813.
Baxley et al.,J.Mol.Cat.Chem., 116, 1997, 191-198.
Baxley et al.,Inorg.Chem., 1996, 35, 6688-6693.
Lindner et al.,J. Org.Chem., 2000, 602, 173-187.
U.S. Appl. No. 09/719,813, filed Dec. 18, 2000, Queisser et al.
Bartik et al.,Inorg. Chem., 1994, 33,164.
Hamed et al.,Organometallics, 1998, 17, 5184.
Chen et al.,Polyhedron, 1998,17, 2271.
Verspui et al,.Angew.Chem., Int. Ed. Engl., 2000, 39, 804-806.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Catalyst systems based on transition metal complexes 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 systems based on transition metal complexes for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst systems based on transition metal complexes for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3498666

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.