← Back to Patent Explorer
US4281014A Expired / Lapsed US ⏱️ 0.0 years remaining

Stabilized compositions containing N-aminosulfenylated derivatives of carbofuran

Assignee: FMC Corp
•
Filing: 1980-06-04
•
Granted: 1981-07-28
•
Expires: 2000-06-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Insecticidal compositions containing N-aminosulfenyl derivatives of carbofuran are stabilized against spontaneous decomposition by incorporating an epoxide compound therein.

Inventors

  • 👤 Jerome Yaffe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 09:28
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/22; A01N47/00; A01N47/08; A01N47/10; A01N47/24

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 120 words
A stabilized insecticidal composition comprising about 0.2 to 98% by weight insecticidal N-aminosulfenyl derivative of carbofuran of the formula ##STR2## wherein R and R' may be the same or different, and each is alkyl of 1 to 8 carbon atoms which may contain an --O--, --S--, or --NR"-- linkage (where R" is lower (1 to 4 carbons) alkyl, benzyl, or phenyl), cycloalkyl of 3 to 6 carbon atoms, or benzyl, or R and R' taken together with the nitrogen form a heterocyclic ring of 5 to 8 members which may contain an --S--, or --NR"--, which heterocyclic ring may be substituted by one or more alkyl, aralkyl, aryl, or alkoxy groups, and about 0.01 to 20% by weight epoxide compound.
Claim 2
Dependent Claim 120 words
A stabilized insecticidal composition comprising about 0.2 to 98% by weight insecticidal N-aminosulfenyl derivative of carbofuran of the formula ##STR2## wherein R and R' may be the same or different, and each is alkyl of 1 to 8 carbon atoms which may contain an --O--, --S--, or --NR"-- linkage (where R" is lower (1 to 4 carbons) alkyl, benzyl, or phenyl), cycloalkyl of 3 to 6 carbon atoms, or benzyl, or R and R' taken together with the nitrogen form a heterocyclic ring of 5 to 8 members which may contain an --S--, or --NR"--, which heterocyclic ring may be substituted by one or more alkyl, aralkyl, aryl, or alkoxy groups, and about 0.01 to 20% by weight epoxide compound.
Claim 3
Dependent Claim 30 words
A composition of claim 1 wherein the N-aminosulfenyl derivative of carbofuran is selected from those compounds wherein R and R' are alkyl or R is alkyl and R' is benzyl.
Claim 4
Dependent Claim 21 words
A composition of claim 2 wherein the N-aminosulfenyl derivative of carbofuran is selected from the (di-n-propyl)-, (di-n-butyl)-, (di-n-pentyl)-, or (N-methyl)-(N-phenylmethyl)aminosulfenyl derivative.
Claim 5
Dependent Claim 15 words
A composition of claim 3 wherein the N-aminosulfenyl derivative of carbofuran is 2,3-dihydro-2,2-dimethyl-7-benzofuranyl [(di-n-butyl)aminosulfenyl]-[methyl] carbamate.
Claim 6
Dependent Claim 43 words
A composition of claim 1 wherein the epoxide compound has an oxirane oxygen content of about 4 to 25% and is selected from alkyloxiranes, aryloxiranes, epoxyethers, epoxycyclanes, and epoxidized naturally-occurring unsaturated fatty acid esters found in or derived from animal and vegetable oils.
Claim 7
Dependent Claim 14 words
A composition of claim 5 wherein the epoxide compound is an epoxidized vegetable oil.
Claim 8
Dependent Claim 15 words
A composition of claim 6 wherein the vegetable oil is soybean oil or linseed oil.
Claim 9
Dependent Claim 15 words
A composition of claim 4 or 6 wherein the epoxide compound is epoxidized soybean oil.
Claim 10
Independent Claim 131 words
A method to stabilize an insecticidal composition containing about 0.2 to 98% by weight insecticidal N-aminosulfenyl derivative of carbofuran of the formula ##STR3## wherein R and R' may be the same or different, and each is alkyl of 1 to 8 carbon atoms which may contain an --O--, --S--, or --NR"-- linkage (where R" is lower (1 to 4 carbons) alkyl, benzyl, or phenyl), cycloalkyl of 3 to 6 carbon atoms, or benzyl, or R and R' taken together with the nitrogen form a heterocyclic ring of 5 to 8 members which may contain an --S--, or --NR"--, which heterocyclic ring may be substituted by one or more alkyl, aralkyl, aryl, or alkoxy groups, which comprises incorporating therewith epoxide compound to constitute about 0.01 to 20% by weight of said composition.
Claim 11
Independent Claim 131 words
A method to stabilize an insecticidal composition containing about 0.2 to 98% by weight insecticidal N-aminosulfenyl derivative of carbofuran of the formula ##STR3## wherein R and R' may be the same or different, and each is alkyl of 1 to 8 carbon atoms which may contain an --O--, --S--, or --NR"-- linkage (where R" is lower (1 to 4 carbons) alkyl, benzyl, or phenyl), cycloalkyl of 3 to 6 carbon atoms, or benzyl, or R and R' taken together with the nitrogen form a heterocyclic ring of 5 to 8 members which may contain an --S--, or --NR"--, which heterocyclic ring may be substituted by one or more alkyl, aralkyl, aryl, or alkoxy groups, which comprises incorporating therewith epoxide compound to constitute about 0.01 to 20% by weight of said composition.

References Cited (Backward Citations)

US3867526A Cited
US3891759A Cited
US4006231A Cited
US3952102A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-07-27 1985-01-26 1985-07-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-07-27 1989-01-26 1989-07-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-07-27 1993-01-26 1993-07-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag