Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2006-09-05
2006-09-05
Wood, Elizabeth D. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S175000
Reexamination Certificate
active
07101823
ABSTRACT:
Double metal cyanide catalysts (DMC) are complexed with complexing agents that are miscible in poly(propylene oxide) at higher temperatures and immiscible at lower temperatures. The complexing agent is a poly(ethylene oxide) polymer or a copolymer having a poly(ethylene oxide) block. The catalyst is easily removed from a polyether polyol.
REFERENCES:
patent: 3278457 (1966-10-01), Milgrom
patent: 3278458 (1966-10-01), Beiner
patent: 3278459 (1966-10-01), Herold
patent: 3404109 (1968-10-01), Milgrom
patent: 3427256 (1969-02-01), Milgrom
patent: 3427335 (1969-02-01), Herold
patent: 4472560 (1984-09-01), Kuyper et al.
patent: 4477589 (1984-10-01), van der Hulst et al.
patent: 5470813 (1995-11-01), Le-Khac
patent: 5482908 (1996-01-01), Le-Khac
patent: 5536883 (1996-07-01), Le-Khac
patent: 5627120 (1997-05-01), Le-Khac
patent: 6291388 (2001-09-01), Hofmann et al.
patent: 6323375 (2001-11-01), Hofmann et al.
patent: 6355848 (2002-03-01), Antons et al.
patent: 6429342 (2002-08-01), Clement et al.
patent: 6552163 (2003-04-01), Clement et al.
patent: 6627575 (2003-09-01), Kim et al.
patent: 6789626 (2004-09-01), Wagg
patent: 0 743 093 (1996-11-01), None
patent: 0 776 922 (1997-06-01), None
patent: WO 99/19063 (1999-04-01), None
patent: 01/04179 (2001-01-01), None
patent: 01/04184 (2001-01-01), None
patent: WO 01/38421 (2001-05-01), None
United States of America
Wood Elizabeth D.
LandOfFree
Method for preparing metal cyanide catalyst complexes using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing metal cyanide catalyst complexes using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing metal cyanide catalyst complexes using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3594335