Patent US1325667A successfully refreshed from Google Patents.
US5019155A
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Herbicidal granular compositions
Assignee: BASF SE
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Filing: 1989-07-14
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Granted: 1991-05-28
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Expires: 2009-07-14
Abstract
Abstract The present invention provides fine granular compositions of pendimethalin which are non-dusting and non-staining.
Inventors
- 👤 Masaomi Kimpara
- 👤 Kaiji Kawai
- 👤 Hiroshi Kikuchi
- 👤 Masai Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:54
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/12; A01N33/00; A01N33/16; A01N33/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
63 words
Herbicidal fine granular compositions comprising on a weight to weight basis about 0.5% to 5.0% of N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitroaniline(pendimethalin); about 1.0% to 10.0% of an organic solvent having a boiling point greater than 150° C.; about 85% to 98.5% of a spherical granular carrier having an average diameter in a range of about 60μ to 750μ; and about 0% to 2% of a stabilizing agent.
Claim 2
Dependent Claim
63 words
Herbicidal fine granular compositions comprising on a weight to weight basis about 0.5% to 5.0% of N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitroaniline(pendimethalin); about 1.0% to 10.0% of an organic solvent having a boiling point greater than 150° C.; about 85% to 98.5% of a spherical granular carrier having an average diameter in a range of about 60μ to 750μ; and about 0% to 2% of a stabilizing agent.
Claim 3
Dependent Claim
38 words
The composition according to claim 1 wherein the organic solvent has a boiling point in the range of about 150° C. to 350° C. and the spherical carrier has an average particle size of about 63μ to 710μ.
Claim 4
Dependent Claim
23 words
A composition according to claim 2, wherein pendimethalin is stabilized with 1% to 2% of a sodium dialkyl C 6 -C 8 sulfosuccinate.
Claim 5
Dependent Claim
21 words
A composition according to claim 2, wherein said organic solvent is phenyldimethylphenyl ethane, dimethylnaphthaline or methyl oleate or a mixture thereof.
Claim 6
Dependent Claim
27 words
A composition according to claim 2, wherein the spherical carrier is prepared by granulating a powdered carrier having an average particle size of less than 100 mesh.
Claim 7
Dependent Claim
28 words
A composition according to claim 2, wherein the spherical carrier is granulated using a binder of polyvinylalcohol, carboxymethyl cellulose, phenol resin, hydroxy propyl cellulose or the mixture thereof.
Claim 8
Dependent Claim
21 words
A composition according to claim 2, wherein the spherical carrier is granulated using a high speed drum or pan type granulator.
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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |