US4314841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzyl thiocarbamate sulfoxides stabilized with calcium carbonate carrier
Assignee: Zeneca Inc
•
Filing: 1981-02-17
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Granted: 1982-02-09
•
Expires: 2001-02-17
Abstract
Abstract The thermal instability and carrier deactivation of a herbicidal benzyl thiocarbamate sulfoxide is reduced by use of a calcium carbonate carrier.
Inventors
- 👤 Herbert B. Scher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:56
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/22; A01N47/00; A01N47/08; A01N47/10; A01N47/24
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
96 words
In a granular herbicidal composition comprising from 0.5% to 50% by weight of a benzyl thiocarbamate sulfoxide of the formula ##STR2## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene; and from 50% to 99.5% by weight of a carrier, the improvement comprising the use of calcium carbonate as the carrier to improve the thermal stability of the benzyl thiocarbamate sulfoxide.
Claim 2
Dependent Claim
96 words
In a granular herbicidal composition comprising from 0.5% to 50% by weight of a benzyl thiocarbamate sulfoxide of the formula ##STR2## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene; and from 50% to 99.5% by weight of a carrier, the improvement comprising the use of calcium carbonate as the carrier to improve the thermal stability of the benzyl thiocarbamate sulfoxide.
Claim 3
Dependent Claim
17 words
A composition according to claim 1 further comprising from 0.5% to 20% by weight of a binder.
Claim 4
Dependent Claim
37 words
A composition according to claim 2 comprising from 1% to 25% by weight of said benzyl thiocarbamate sulfoxide, from 75% to 95% by weight of calcium carbonate, and from 1% to 10% by weight of said binder.
Claim 5
Dependent Claim
29 words
A composition according to claim 2 in which R 1 and R 2 either independently are C 1 -C 6 alkyl or conjointly form C 4 -C 6 alkylene.
Claim 6
Dependent Claim
16 words
A composition according to claim 2 in which said binder is a water-soluble or water-dispersible polymer.
Claim 7
Dependent Claim
23 words
A composition according to claim 2 in which R 1 is ethyl, R 2 is sec-butyl, and said binder is ammonium lignin sulfonate.
Claim 8
Dependent Claim
23 words
A composition according to claim 2 in which R 1 and R 2 conjointly form hexamethylene, and said binder is ammonium lignin sulfonate.
Claim 9
Dependent Claim
116 words
In a method of controlling undesirable vegetation which comprises applying to the locus where control is desired an herbicidally effective amount of a granular composition comprising from 0.5% to 50% by weight of a benzyl thiocarbamate sulfoxide of the formula ##STR3## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene; and from 50% to 99.5% by weight of a carrier, the improvement comprising the use of calcium carbonate as the carrier to improve the thermal stability of the benzyl thiocarbamate sulfoxide.
Claim 10
Dependent Claim
116 words
In a method of controlling undesirable vegetation which comprises applying to the locus where control is desired an herbicidally effective amount of a granular composition comprising from 0.5% to 50% by weight of a benzyl thiocarbamate sulfoxide of the formula ##STR3## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene; and from 50% to 99.5% by weight of a carrier, the improvement comprising the use of calcium carbonate as the carrier to improve the thermal stability of the benzyl thiocarbamate sulfoxide.
Claim 11
Dependent Claim
22 words
A method according to claim 8 in which said granular composition further comprises from 0.5% to 20% by weight of a binder.
Claim 12
Dependent Claim
37 words
A method according to claim 9 comprising from 1% to 25% by weight of said benzyl thiocarbamate sulfoxide, from 75% to 95% by weight of calcium carbonate, and from 1% to 10% by weight of said binder.
Claim 13
Dependent Claim
29 words
A method according to claim 9 in which R 1 and R 2 either independently are C 1 -C 6 alkyl or conjointly form C 4 -C 6 alkylene.
Claim 14
Dependent Claim
16 words
A method according to claim 9 in which said binder is a water-soluble or water-dispersible polymer.
Claim 15
Dependent Claim
23 words
A method according to claim 9 in which R 1 is ethyl, R 2 is sec-butyl, and said binder is ammonium lignin sulfonate.
Claim 16
Dependent Claim
23 words
A method according to claim 9 in which R 1 and R 2 conjointly form hexamethylene, and said binder is ammonium lignin sulfonate.
Claim 17
Dependent Claim
110 words
In soil treated with an herbicidally effective amount of a granular composition comprising from 0.5% to 50% by weight of a benzyl thiocarbamate sulfoxide of the formula ##STR4## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene; and from 50% to 99.5% by weight of a carrier, the improvement comprising the use of calcium carbonate as the carrier to reduce the rate of deactivation of the benzyl thiocarbamate sulfoxide when in contact with dry soil.
Claim 18
Dependent Claim
110 words
In soil treated with an herbicidally effective amount of a granular composition comprising from 0.5% to 50% by weight of a benzyl thiocarbamate sulfoxide of the formula ##STR4## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene; and from 50% to 99.5% by weight of a carrier, the improvement comprising the use of calcium carbonate as the carrier to reduce the rate of deactivation of the benzyl thiocarbamate sulfoxide when in contact with dry soil.
Claim 19
Dependent Claim
22 words
Soil treated according to claim 15 in which said granular composition further comprises from 0.5% to 20% by weight of a binder.
Claim 20
Dependent Claim
42 words
Soil treated according to claim 16 in which said granular composition comprises from 1% to 25% by weight of said benzyl thiocarbamate sulfoxide, from 75% to 95% by weight of calcium carbonate, and from 1% to 10% by weight of said binder.
Claim 21
Dependent Claim
29 words
Soil treated according to claim 16 in which R 1 and R 2 either independently are C 1 -C 6 alkyl or conjointly form C 4 -C 6 alkylene.
Claim 22
Dependent Claim
16 words
Soil treated according to claim 16 in which said binder is a water-soluble or water-dispersible polymer.
Claim 23
Dependent Claim
23 words
Soil treated according to claim 16 in which R 1 is ethyl, R 2 is sec-butyl, and said binder is ammonium lignin sulfonate.
Claim 24
Dependent Claim
23 words
Soil treated according to claim 16 in which R 1 and R 2 conjointly form hexamethylene, and said binder is ammonium lignin sulfonate.
Claim 25
Independent Claim
88 words
A method of improving the thermal stability of a benzyl thiocarbamate sulfoxide of the formula ##STR5## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene, which comprises forming a granular composition comprising from 0.5% to 50% by weight of said benzyl thiocarbamate sulfoxide and from 50% to 99.5% by weight of calcium carbonate.
Claim 26
Independent Claim
88 words
A method of improving the thermal stability of a benzyl thiocarbamate sulfoxide of the formula ##STR5## in which R 1 and R 2 are independently selected from the group consisting of C 1 -C 6 alkyl, C 2 -C 6 alkenyl, and C 2 -C 6 alkynyl, or R 1 and R 2 conjointly form C 3 -C 10 alkylene, which comprises forming a granular composition comprising from 0.5% to 50% by weight of said benzyl thiocarbamate sulfoxide and from 50% to 99.5% by weight of calcium carbonate.
Claim 27
Dependent Claim
22 words
A method according to claim 22 in which said granular composition further comprises from 0.5% to 20% by weight of a binder.
Claim 28
Dependent Claim
37 words
A method according to claim 23 comprising from 1% to 25% by weight of said benzyl thiocarbamate sulfoxide, from 75% to 95% by weight of calcium carbonate, and from 1% to 10% by weight of said binder.
Claim 29
Dependent Claim
29 words
A method according to claim 23 in which R 1 and R 2 either independently are C 1 -C 6 alkyl or conjointly form C 4 -C 6 alkylene.
Claim 30
Dependent Claim
16 words
A method according to claim 23 in which said binder is a water-soluble or water-dispersible polymer.
Claim 31
Dependent Claim
23 words
A method according to claim 23 in which R 1 is ethyl, R 2 is sec-butyl, and said binder is ammonium lignin sulfonate.
Claim 32
Dependent Claim
23 words
A method according to claim 23 in which R 1 and R 2 conjointly form hexamethylene, and said binder is ammonium lignin sulfonate.
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) | 1985-02-08 | 1985-08-10 | 1986-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-08 | 1989-08-10 | 1990-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-08 | 1993-08-10 | 1994-02-09 | $7700.00 | Window Closed / Lapsed |