# US 5,705,175 A · Non-aqueous controlled release insect repellent and insecticide gels > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,705,175 A - Document ID: US5705175A - Status: Granted - Kind: A - Application number: 08/609,079 - Filed: 1996-02-29 - Granted: 1998-01-06 - Earliest claimed: 1996-02-29 - Assignees: Pennzoil Products Company - Inventors: Richard L. Johnson - Web page: https://patentgrep.com/patent/US5705175A ## CPC - A01M 1/2055: {Holders or dispensers for solid, gelified or impregnated insecticide, e.g. volatile blocks or impregnated pads} - A01N 25/006: {insecticidal} - A01N 25/04: Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16) - A01N 25/18: Vapour or smoke emitting compositions with delayed or sustained release - A01N 37/18: containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof - A01N 49/00: Biocides, pest repellants or attractants, or plant growth regulators, containing compounds containing the group [IMAGE cpc-sch-A01N-0948.gif], wherein m+n>=1, both X together may also mean —Y— or a direct carbon-to-carbon bond, and the carbon atoms marked with an asterisk are not part of any ring system other than that which may be formed by the atoms X, the carbon atoms in square brackets being part of any acyclic or cyclic structure, or the group [IMAGE cpc-sch-A01N-0949.gif], wherein A means a carbon atom or Y, n>=0, and not more than one of these carbon atoms being a member of the same ring system, e.g. juvenile insect hormones or mimics thereof (containing hydrocarbons A01N27/00) - A01N 53/00: Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof - A61L 9/01: Deodorant compositions {(compositions released by contact with a liquid A61L9/05)} - A61L 9/042: {with the help of a macromolecular compound as a carrier or diluent (A61L9/048 takes precedence)} - A61L 9/048: {air treating gels} - Y10S 424/05: Stick - Y10S 424/10: Insect repellent - A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS - A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract Controlled release insect repellent or insecticide based on a non-aqueous gel composition comprising from about 1 to about 20 weight percent of one or more diblock, triblock, radial block and/or multiblock copolymers, or a mixture thereof, based on synthetic thermoplastic rubbers. The ratio of the diblock copolymer to triblock, radial block and/or multiblock copolymer can be varied from about 0 percent to about 100 percent in either direction. The higher the tri-block percentage, the stiffer the resultant gel. The material to be gelled is a hydrocarbon which based on its physical properties plays an important role in setting the controlled release rate. The composition of the hydrocarbon can vary in carbon chain length from an average of about C-13 to about C-30 and can vary in vapor pressure from about 2.3 mm Hg at 20.degree. C. to less than about 0.1 mm Hg at 20.degree. C. The hydrocarbon range on a weight basis is from about 65 to about 95 percent of the total weight of the gelled composition. The controlled release agent or active agent may comprise from about 0.1 to about 30 percent of the gel on a weight basis. ## Claims ### Claim 1 A non-aqueous, controlled-release insecticide composition comprising: (a) from about 65 to about 95 weight percent of a hydrocarbon; (b) from about 1 to about 20 weight percent of one or more diblock, triblock, radial block and/or multiblock copolymers, or a mixture thereof comprising from about 0 to about 100 weight percent of said one or more diblock copolymers and from about 100 to about 0 weight percent of said one or more triblock, radial block and/or multiblock copolymers; and (c) from about 0.1 to about 30 weight percent of one or more insecticides as an active substance. ### Claim 2 (depends on 1) The non-aqueous, controlled-release insecticide composition according to claim 1, wherein said active substance comprises from about 1 to about 10 weight percent. ### Claim 3 (depends on 1) The non-aqueous, controlled-release insecticide composition according to claim 1, wherein said hydrocarbon comprises an average of from about 13 to about 30 carbon atoms. ### Claim 4 (depends on 1) The non-aqueous, controlled-release insecticide composition according to claim 1, wherein said active substance is selected from the group consisting of bait, stomach kill, residual contact kill and fumigant kill insecticides. ### Claim 5 (depends on 1) The non-aqueous, controlled-release insecticide composition according to claim 1, wherein said active ingredient is selected from the group consisting of pyrethroids, carbamates, phosphorothioates, organophosphates, chrysanthemums and juvenile hormones. ### Claim 6 A method for exterminating insects comprising: providing a controlled release, stiff hydrocarbon gel comprising from about 65 to about 95 weight percent of a hydrocarbon; and, from about 1 to about 20 weight percent of one or more diblock, triblock, radial block and/or multiblock copolymers, or a mixture thereof comprising from about 0 to about 100 weight percent of said one or more diblock copolymers and from about 100 to about 0 weight percent of said one or more triblock, radial block and/or multiblock copolymers; heating said controlled release hydrocarbon gel to form a substantially melted hydrocarbon/polymer mixture; and adding from about 0.1 to about 30 weight percent of an active substance, wherein said active substance is selected from the group consisting of one or more insecticides.