Titanium-zirconium catalyst compositions and use thereof

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

C528S279000, C560S098000, C525S010000

Reexamination Certificate

active

06841505

ABSTRACT:
A catalyst composition prepared from (a) titanium tetrahydrocarbyloxide, (b) zirconium tetrahydrocarbyloxide, and (c) tetraalkyl ammonium hydroxide, wherein the molar ratio of Zr:Ti is from about 0.02:1 to about 5:1 and the molar ratio of TAAH:(Ti+Zr) is from about 0.05:1 to about 2:1.

REFERENCES:
patent: 3056818 (1962-10-01), Werber
patent: 3326965 (1967-06-01), Schultheis et al.
patent: 5120822 (1992-06-01), Hoeschele et al.
patent: 5268503 (1993-12-01), Karasawa et al.
patent: 5684116 (1997-11-01), Martl et al.
patent: 5840957 (1998-11-01), Kurian et al.
patent: 5866710 (1999-02-01), Ridland et al.
patent: 5981690 (1999-11-01), Lustig et al.
patent: 6043335 (2000-03-01), Banach et al.
patent: 6075115 (2000-06-01), Putzig et al.
patent: 6166170 (2000-12-01), Putzig
patent: 6255441 (2001-07-01), Putzig et al.
patent: 6255442 (2001-07-01), Kurian et al.
patent: 6281325 (2001-08-01), Kurian et al.
patent: 6335421 (2002-01-01), Kurian et al.
patent: 6353062 (2002-03-01), Giardino et al.
patent: 6372929 (2002-04-01), Ridland et al.
patent: 6407269 (2002-06-01), Kaita et al.
patent: 6512080 (2003-01-01), Kelsey et al.
patent: 6541411 (2003-04-01), Hoffmann et al.
patent: 20020032302 (2002-03-01), Scardino et al.
patent: 1 437 897 (1976-06-01), None
patent: 52-136294 (1977-11-01), None
patent: 1993339392 (1978-07-01), None
patent: 53-85891 (1993-12-01), None
patent: 1994234701 (1994-08-01), None
patent: WO 9928033 (1999-06-01), None
patent: WO 9954379 (1999-10-01), None
patent: WO 0046271 (2000-08-01), None
patent: WO 0071252 (2000-11-01), None
patent: WO 0156694 (2001-08-01), None
patent: WO 0158981 (2001-08-01), None
H. L. Traub, “Synthese und textilchemische Eigenschaften de Poly-Trimethyleneterephthalats”,Dissertaion Universitat Stuttgart, (1994) (English Translation).
A. Greiner, “Study of Mixtures of Titanium- and Zirconium Alkoxides as Catalysts in Polycondensation of PET”, Institute of Man-Made Fibers, (1999).
DuPont™ Tyzor® Organic Titanates, General Brochure, E. I. du Pont de Nemours and Company (Copyright Dupont 2001).
English Abstract FR 83866 (Martin-Marietta Corp.) Oct. 30, 1964, “Esterification of terephthalic and isophthalic acids” (HCAPLUS, Copyright 2002 ACS).
International Search Report, date of mailing Dec. 24, 2003.

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

Titanium-zirconium catalyst compositions and use thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Titanium-zirconium catalyst compositions and use thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Titanium-zirconium catalyst compositions and use thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3366478

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