US4462819A
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US
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Urease inhibited urea based fertilizer compositions containing organo boron acid compounds
Assignee: Honeywell International Inc
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Filing: 1983-04-07
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Granted: 1984-07-31
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Expires: 2003-04-07
Abstract
Abstract The invention relates to novel urease inhibited fertilizer compositions containing urea and a urease inhibiting amount of one or more organo boron acid compounds, and to a method and composition for inhibiting the catalytic activity of urease through use of such compounds.
Inventors
- 👤 Michael Van Der Puy
- 👤 Ralph C. Gatrone
- 👤 Martin A. Robinson
- 👤 Larry L. Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:08
CPC Classifications
C; C05; C05G; C05G3/00; C05G3/90; C05C; C05C9/00; Y; Y10; Y10S; Y10S71/00; Y10S71/902
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
91 words
A composition comprising urea and a urease inhibiting effective amount of one or more organo boron acid compounds of the formula: R.sub.1 R.sub.2 BOH wherein: R 1 and R 2 are the same or different and are hydroxy or substituted aryl radicals wherein permissible substituents are one or more moieties selected from the group consisting of electron donating groups, provided, however, that when either R 1 or R 2 is hydroxy, the other is substituted aryl; or one or more compounds which are capable of forming such acid compounds in situ.
Claim 2
Dependent Claim
91 words
A composition comprising urea and a urease inhibiting effective amount of one or more organo boron acid compounds of the formula: R.sub.1 R.sub.2 BOH wherein: R 1 and R 2 are the same or different and are hydroxy or substituted aryl radicals wherein permissible substituents are one or more moieties selected from the group consisting of electron donating groups, provided, however, that when either R 1 or R 2 is hydroxy, the other is substituted aryl; or one or more compounds which are capable of forming such acid compounds in situ.
Claim 3
Dependent Claim
79 words
A composition according to claim 1 wherein said compounds are boronic acid compounds of the formula: ##STR3## wherein: R 3 is the same or different at each occurrence and is selected such that the sum of the Hammett sigma (σ) values for R 3 substituents is less than zero; and n is an integer from 1 to 5; or one or more compounds which are capable of forming such boronic acid compounds under the use conditions of the composition.
Claim 4
Dependent Claim
26 words
A composition according to claim 1 wherein said urease inhibiting amount is at least about 0.00001 weight percent based on the total weight of the composition.
Claim 5
Dependent Claim
18 words
A composition according to claim 3 wherein said amount is from about 0.00001 to about 98 weight percent.
Claim 6
Dependent Claim
18 words
A composition according to claim 4 wherein said amount is from about 0.0001 to about 50 weight percent.
Claim 7
Dependent Claim
18 words
A composition according to claim 5 wherein said amount is from about 0.001 to about 20 weight percent.
Claim 8
Dependent Claim
26 words
A composition according to claim 2 wherein said sum of the Hammett sigma (σ) values for R substituents is equal to or less than about -0.1.
Claim 9
Dependent Claim
17 words
A composition according to claim 7 wherein said sum is equal to or less than about -0.5.
Claim 10
Dependent Claim
17 words
A composition according to claim 8 wherein said sum is equal to or less than about -0.8.
Claim 11
Dependent Claim
139 words
A composition according to claim 2 wherein R 3 substituents are selected from the group consisting of moieties of the formulas: --NR.sub.4 R.sub.5, --OR.sub.6 or --SR.sub.7 wherein: R 4 and R 5 are individually hydroxy, amido, hydrogen, alkoxycarbonyl, alkoxy, alkylcarbonyl, alkyl or hydroxyalkyl wherein the alkyl moiety include from 1 to about 7 carbon atoms; R 6 is hydrogen, alkyl having from 1 to about 7 carbon atoms or phenyl either unsubstituted or substituted with one or more alkyl or alkoxy substituents each having from 1 to about 7 carbon atoms; and R 7 is hydrogen or alkyl having from 1 to about 7 carbon atoms; or two or more R 3 substituents together may form an alkylene or alkenylene chain which may include one or more divalent heteroatoms of oxygen, sulfur or nitrogen completing a fused ring substituent.
Claim 12
Dependent Claim
22 words
A composition according to claim 10 wherein said R 3 substituents are selected from the group consisting of mercapto, hydroxy and hydroxylamino.
Claim 13
Dependent Claim
22 words
A method of enhancing plant yield which comprises applying a composition according to claim 1 to the soil immediately surrounding said plant.
Claim 14
Independent Claim
106 words
A method of inhibiting the activity of urease in a growth medium which comprises applying to said medium a urease inhibiting effective amount of one or more organo boron acid compounds of the formula: R.sub.1 R.sub.2 BOH wherein: R 1 and R 2 are the same or different and are hydroxy or substituted aliphatic or aryl radicals wherein permissible substituents are one or more moieties selected from the group consisting of electron donating groups, provided, however, that when either R 1 or R 2 is hydroxy, the other is substituted aryl, or one or more compounds which are capable of forming such acid compounds in situ.
Claim 15
Independent Claim
106 words
A method of inhibiting the activity of urease in a growth medium which comprises applying to said medium a urease inhibiting effective amount of one or more organo boron acid compounds of the formula: R.sub.1 R.sub.2 BOH wherein: R 1 and R 2 are the same or different and are hydroxy or substituted aliphatic or aryl radicals wherein permissible substituents are one or more moieties selected from the group consisting of electron donating groups, provided, however, that when either R 1 or R 2 is hydroxy, the other is substituted aryl, or one or more compounds which are capable of forming such acid compounds in situ.
Claim 16
Dependent Claim
79 words
A method according to claim 13 wherein said compound is a boronic acid compound of the formula: ##STR4## wherein: R 3 is the same or different at each occurrence and is selected such that the sum of the Hammett sigma (σ) values for R substituents is less than zero; and n is an integer from 1 to 5; or one or more compounds which are capable of forming such boronic acid compounds under the use conditions of the composition.
Claim 17
Dependent Claim
17 words
A method according to claim 13 wherein said urease inhibiting amount is at least about 0.02 p.p.m.
Claim 18
Dependent Claim
17 words
A method according to claim 15 wherein said amount is from about 0.02 to about 5000 p.p.m.
Claim 19
Dependent Claim
17 words
A method according to claim 16 wherein said amount is from about 1 to about 1000 p.p.m.
Claim 20
Dependent Claim
17 words
A method according to claim 17 wherein said amount is from about 5 to about 100 p.p.m.
Claim 21
Dependent Claim
26 words
A method according to claim 14 wherein said sum of the Hammett sigma (σ) values for R substituents is equal to or less than about -0.1.
Claim 22
Dependent Claim
17 words
A method according to claim 19 wherein said sum is equal to or less than about -0.5.
Claim 23
Dependent Claim
17 words
A method according to claim 20 wherein said sum is equal to or less than about -0.8.
Claim 24
Dependent Claim
118 words
A method according to claim 14 wherein R 3 substituents are selected from the group consisting of moieties of the formulas: --NR.sub.4 R.sub.5, --OR.sub.1 or --SR.sub.7 wherein: R 4 and R 5 are individually hydroxy, hydrogen, amido alkoxycarbonyl, alkoxy, alkylcarbonyl, alkyl or hydroalkyl wherein the alkyl moiety includes from 1 to about 7 carbon atoms; R 5 is hydrogen, alkyl or alkoxy substituents each having from 1 to about 7 carbon atoms; and R 7 is hydrogen or alkyl having from 1 to about 7 carbon atoms; or two or more R 3 substituents together may form an alkylene chain which may include one or more divalent heteroatoms of oxygen, sulfur or nitrogen completing a fused ring substituent.
Claim 25
Dependent Claim
23 words
A method according to claim 21 wherein said R 3 substituents are selected from the group consisting of amino, mercapto, hydroxy and hydroxylamino.
Claim 26
Dependent Claim
43 words
A method according to claim 13 which further comprising applying urea, or a compound capable of forming urea in situ to said plant growth medium prior to, in conjunction with or subsequent to application of said one or more compounds to said medium.
Claim 27
Dependent Claim
22 words
A method according to claim 24 wherein said urea is added to said plant growth medium subsequent to application of said compound.
Claim 28
Dependent Claim
24 words
A method according to claim 25 wherein said urea is applied to said medium, not more than 10 days after application of said compounds.
Claim 29
Dependent Claim
24 words
A method according to claim 26 wherein said urea is applied to said medium not more than 5 days after application of said compounds.
Claim 30
Dependent Claim
24 words
A method according to claim 27 wherein said urea is applied to said medium not more than 2 days after application of said compounds.
Claim 31
Dependent Claim
113 words
A fertilizer composition which comprises a urea and/or one or more urea precursor compounds capable of forming urea under the use conditions of said composition and urease inhibiting effective amount of one or more organo boron acid compounds of the formula: R.sub.1 R.sub.2 BOH wherein: R 1 and R 2 are the same or different and are hydroxy or substituted aliphatic or aryl radicals wherein permissible substituents are one or more moieties selected from the group consisting of electron donating groups, provided, however, that when either R 1 or R 2 is hydroxy, the other is substituted aryl, or one or more compounds which are capable of forming such acid compounds in situ.
Claim 32
Dependent Claim
113 words
A fertilizer composition which comprises a urea and/or one or more urea precursor compounds capable of forming urea under the use conditions of said composition and urease inhibiting effective amount of one or more organo boron acid compounds of the formula: R.sub.1 R.sub.2 BOH wherein: R 1 and R 2 are the same or different and are hydroxy or substituted aliphatic or aryl radicals wherein permissible substituents are one or more moieties selected from the group consisting of electron donating groups, provided, however, that when either R 1 or R 2 is hydroxy, the other is substituted aryl, or one or more compounds which are capable of forming such acid compounds in situ.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |