Patent US3980463A successfully refreshed from Google Patents.
US3980463A
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Process for producing granular composition for use in agriculture and horticulture
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1974-10-16
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Granted: 1976-09-14
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Expires: 1994-10-16
Abstract
Abstract A granular composition for use in the agricultural and horticulture fields is prepared by mixing an active ingredient, such as an insecticide, fungicide or herbicide and a solvent or a binder with a carrier consisting of 0-30% of particles larger than 149 mu (100 mesh), 40-90% of particles between 149 mu (100 mesh) and 46 mu (300 mesh) and 10-30% of particles smaller than 46 mu . Finely divided particles of moisture-absorbing substances may be added when the carrier has been moderately granulated in the course of the production process. The composition is suited for spraying by helicopters or multi-nozzle hoses on dusters, for example.
Inventors
- 👤 Noboru Muramoto
- 👤 Yukikazu Okamoto
- 👤 Kazuo Kamaya
- 👤 Kunihiro Kawaji
- 👤 Makoto Shiraki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:18
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
A process for producing an agricultural or horticultural granular composition having at least 80% of particles having a size of from 105 microns (150 mesh) to 297 microns (48 mesh) which comprises mixing an effective amount of an agricultural or horticultural active ingredient and 1 to 10% by weight based on the total weight of the composition of a liquid medium or a liquid medium and a binder soluble therein, with a carrier having the following particle size distribution: less than 30% by weight of particles larger than 149 microns (100 mesh), but which wholly pass through a size of 297 microns (48 mesh); and 10to 30% by weight of particles smaller than 46 microns (300 mesh); the balance being of particles within the range of 149 microns (100 mesh) to 46 microns (300 mesh), using a stirring-type mixer for 10 to 30 minutes to make granules whereby the granulation is completed and then drying.
Claim 2
Dependent Claim
155 words
A process for producing an agricultural or horticultural granular composition having at least 80% of particles having a size of from 105 microns (150 mesh) to 297 microns (48 mesh) which comprises mixing an effective amount of an agricultural or horticultural active ingredient and 1 to 10% by weight based on the total weight of the composition of a liquid medium or a liquid medium and a binder soluble therein, with a carrier having the following particle size distribution: less than 30% by weight of particles larger than 149 microns (100 mesh), but which wholly pass through a size of 297 microns (48 mesh); and 10to 30% by weight of particles smaller than 46 microns (300 mesh); the balance being of particles within the range of 149 microns (100 mesh) to 46 microns (300 mesh), using a stirring-type mixer for 10 to 30 minutes to make granules whereby the granulation is completed and then drying.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein the liquid medium is water.
Claim 4
Dependent Claim
21 words
The process of claim 2 wherein the active ingredient is selected from the group consisting of an insecticide, fungicide and herbicide.
Claim 5
Dependent Claim
25 words
The process of claim 2 wherein the amount of the water is 2 to 6%, by weight, based on the total weight of the composition.
Claim 6
Dependent Claim
61 words
The process of claim 2 wherein said binder is a member selected from the group consisting of a lignin-sulfonate, carboxymethyl cellulose, polyvinyl alcohol, starch, sodium alginate, an acrylic resin, rosin, a coumarone resin, a petroleum resin, shellac and gelatin and said binder is present in an amount of 0.5 to 5% by weight based on the total weight of the composition.
Claim 7
Dependent Claim
28 words
The process of claim 2 wherein the carrier is a mineral selected from the group consisting of kaolinite-type clay, talc, bentonite perlite, pumice, silica rock and mixtures thereof.
Claim 8
Dependent Claim
19 words
The process of claim 1 wherein said stirring-type mixer is a nauta mixer, a ribbon blender, or a kneader.
References Cited (Backward Citations)
US2992090A
Cited
US3137618A
Cited
US3168437A
Cited
US3149953A
Cited
US3748277A
Cited
US3657446A
Cited
US3705019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |