US4762718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In situ insecticide
Assignee: NEW RAC CORP
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Filing: 1987-04-20
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Granted: 1988-08-09
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Expires: 2007-04-20
Abstract
Abstract A method and phase changing composition with an in situ insecticide for the killing of insects on animals over an extended period of time. The phase changing composition with an in situ insecticide comprises a film-former such as hydroxypropyl cellulose, ethyl cellulose and methyl cellulose, an insecticide and a rapidly evaporating solvent such as volatile alcohol. When the phase changing insecticide composition is applied to an animal, it leaves a liquid bead on the animal which penetrates and encapsulates a portion of the animal's body hairs. As the liquid solvent in the liquid bead evaporates, it forms a dry-to-the-touch gel bead that contains the in situ insecticide which is released from the gel bead over an extended period of time.
Inventors
- 👤 George B. Marks, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:09
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/24; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; A61K8/04; A61K8/042; A61K8/18; A61K8/72; A61K8/73; A61K8/731; A61Q; A61Q17/00; A61Q17/02; A61K2800/00; A61K2800/40; A61K2800/54; A61K2800/542; A61K2800/5422
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A gellable slow release composition for killing organisms over an extended period of time comprising: a microporous polymer powder carrier providing multiple insecticide reservoirs, said insecticide reservoirs containing an insecticide, said microporous polymer powder and said insecticide reservoirs located in a liquid water soluble film former and a volatile alcohol to provide a gellable liquid to permit application to an animal for protection against organisms over an extended period of time, said gellable liquid comprises about 1 to 10 percent insecticide, about 0.5 to 20 percent film former and sufficient liquid vehicle to provide up to 98.5 percent of the gellable liquid.
Claim 2
Dependent Claim
102 words
A gellable slow release composition for killing organisms over an extended period of time comprising: a microporous polymer powder carrier providing multiple insecticide reservoirs, said insecticide reservoirs containing an insecticide, said microporous polymer powder and said insecticide reservoirs located in a liquid water soluble film former and a volatile alcohol to provide a gellable liquid to permit application to an animal for protection against organisms over an extended period of time, said gellable liquid comprises about 1 to 10 percent insecticide, about 0.5 to 20 percent film former and sufficient liquid vehicle to provide up to 98.5 percent of the gellable liquid.
Claim 3
Dependent Claim
43 words
The gellable slow release composition of claim 1 wherein the insecticide is selected from the group consisting of 2,2-dimethyl-1,3-benzodioxol-4-yl methylcarbamate; (±) alpha-cyano-3-phenoxybenzyl )±) cis, trans 3-(2,2-dichlorovinyl)-2,2-dimethyl cyclopropanecarboxylate; (s)-alpha-cyano-m-phenoxybenzyl (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethyl cyclopropanecarboxylate; 2,3-dioxanedithiol-S,S-bis(0,0-diethylphosphorodithioate); cyano(3-phenoxy-phenyl)methyl 4-chloro-alpha-(1-methylethyl)benzeneacetate; (±) -cyano(3-phenoxyphenyl)methyl (±) -4-(difluoromethoxy) alpha-(1-methylethyl)benzeneacetate; and (3-phenoxyphenyl)methyl (±) cis, trans-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate.
Claim 4
Dependent Claim
31 words
The gellable slow release composition of claim 1 wherein the film former is selected from one or more of ethyl cellulose, methyl cellulose and hydroxypropyl cellulose to provide a gellable liquid.
Claim 5
Dependent Claim
15 words
The gellable slow release composition of claim 1 wherein the volatile alcohol comprises isopropyl alcohol.
Claim 6
Dependent Claim
17 words
The gellable slow release composition of claim 1 wherein the microporous polymer powder comprises microporous polyproylene powder.
Claim 7
Dependent Claim
14 words
The composition of claim 1 including an additive selected from piperonyl butoxide and N,N-di(2,4,-xylyliminomethyl)methylamine.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein the film former is hydroxypropyl cellulose.
References Cited (Backward Citations)
US3235451A
Cited
GB1413491A
Cited
GB1511646A
Cited
GB1516113A
Cited
NZ183390A
Cited
GB2002635A
Cited
NZ188483A
Cited
US4348409A
Cited
GB2015877A
Cited
US4404223A
Cited
US4283415A
Cited
GB2031729A
Cited
GB2040684A
Cited
EP0041654A1
Cited
US4568541A
Cited
US4390715A
Cited
NZ199904A
Cited
US4376786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |