Buffered amino alcohol solutions of...

Chemistry: fertilizers – Processes and products – Organic material-containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C071S001000, C071S027000, C071S064100, C071S902000, C564S012000

Reexamination Certificate

active

08048189

ABSTRACT:
Reduced volatility of urea fertilizers are prepared in accordance with the present invention by first preparing an N-(n-butyl)-thiophosphoric triamide (NBPT) solution by dissolving NBPT in a mixture of an amino alcohol having the formula 1—(H)x—N—((CH2)m—OH)nwhere m is 1-3, x is 0 or 1, and n is 2 when x is 1 and 3 when x is 0: or the formula 2—(H)y—N—((CH2)—CHOH—CH3)zsuch that the length of the carbon chain where the secondary hydroxyl group is located is 3, y is 0 or 1, and z is 2 when y is 1 and 3 when y is 0, and a carboxylic acid having 6 or fewer carbon atoms. The solution is then combining with a urea fertilizer in granular or liquid form.

REFERENCES:
patent: 3152039 (1964-10-01), Mattson
patent: 3353949 (1967-11-01), Nau
patent: 4530714 (1985-07-01), Kolo et al.
patent: 5024689 (1991-06-01), Sutton et al.
patent: 5352265 (1994-10-01), Weston et al.
patent: 5364438 (1994-11-01), Weston et al.
patent: 5698003 (1997-12-01), Omilinsky et al.
patent: 6830603 (2004-12-01), Whitehurst et al.
patent: 6852904 (2005-02-01), Sun et al.
patent: 2004/0163434 (2004-08-01), Quin
patent: 2006/0185411 (2006-08-01), Hojjatie et al.
patent: 2007/0077428 (2007-04-01), Hamed et al.
patent: 2007/0157689 (2007-07-01), Sutton et al.
patent: 2007/0295047 (2007-12-01), Sutton et al.
patent: 2010/0206030 (2010-08-01), Whitehurst et al.
patent: 2010/0206031 (2010-08-01), Whitehurst et al.
patent: WO 2008/000196 (2008-01-01), None

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

Buffered amino alcohol solutions of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Buffered amino alcohol solutions of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Buffered amino alcohol solutions of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4291341

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