Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 4844896 | Microencapsulated insecticidal pathogens A microencapsulated insecticidal pathogen for application to vegetation is disclosed. An insecticidal viral, bacterial or fungal pathogen is encapsulated in a polymeric encapsulating agent such as Eudragit L, Eudragit S, Eudragit L or S with Eudragit RL, ... | 07/04/1989 |
| 4842860 | Process for producing controlled release preparation Disclosed is a process for producing a controlled release preparation, which comprises: mixing a resin with a carrier; impregnating the resulting mixture with a drug; and applying pressure to the mixture to form a solid. The controlled release preparation according... | 06/27/1989 |
| 4818534 | Insecticidal delivery compositions and methods for controlling a population of insects in an aquatic environment Superabsorbent solid organic polymers which absorb over 100 times their weight in water are used in aquatic environment insect population control compositions. Methods for using the superabsorbent polymer insecticidal delivery agents for the control of aq... | 04/04/1989 |
| 4808408 | Microcapsules prepared by coacervation There is disclosed an improved complex coacervation process for microencapsulation of core ingredients that are partially soluble in the microcapsule walls wherein the core ingredient is first mixed with a coacervation adjacent prior to forming a first co... | 02/28/1989 |
| 4806337 | Erodible matrix for sustained release bioactive composition A sustained release composition for releasing a biologically active compound into an aqueous liquid environment comprises said biologically active compound dispersed in a bioerodible matrix, the matrix comprising a mixture of (a.) 5% to 95% by weight of a... | 02/21/1989 |
| 4780317 | Sustained release antimicrobial agents and method of fouling control using the same A sustained release antimicrobial agent comprises a clathrate compound composed of a water-soluble microbicide and at least one of the compounds shown at (I) to (V) below: (I) 1,1'-bi-2-naphthol; (II) 1,1,4,4-tetraphenyl-2-butyn-1,4-diol; (III) 9,10-di(4-methy... | 10/25/1988 |
| 4774090 | Stabilized insecticidal composition and process for the preparation thereof The invention relates to a microencapsulated insecticidal composition containing isopropyl (2E,4E)-3,7,11-trimethyl-11-methoxy-2,4-dodecaidenoate which comprises 45-95% by weight of isopropyl (2E,4E)-3,7,11-trimethyl-11-methoxy-2,4-dodecadenoate as a... | 09/27/1988 |
| 4765982 | Insect control device Compositions, devices, and methods are disclosed for controlling insect activity wherein an insect control agent is self-adhered to a rough-surfaced fiber. Preferably the fiber is a graft polymer of cellulose and an ethylenically unsaturated material copo... | 08/23/1988 |
| 4753799 | Production of hydrogel encapsulated nematodes Method and composition for an insecticide comprising a hydrated hydrogel capsule containing an insecticidally effective amount of at least one nematode capable of infecting an insect host, which capsule has sufficient hydration to maintain the viability a... | 06/28/1988 |
| 4752496 | Method of applying cosmetics to a substrate and article A unique system for distributing and sampling cosmetics is disclosed. The cosmetics which are normally dry, are combined with a liquid carrier and film forming agent and deposited onto a substrate. The film forming agent acts to microencapsulate the cosme... | 06/21/1988 |
| 4746513 | Microcapsules and method for their production Dump release microcapsules are formed of a water-reswellable gel having dispersed therein a sorbtive filler material having a median particle size of not more than 1 micron, such as fumed or precipitated silica. The filler material has an active substance... | 05/24/1988 |
| 4745640 | Toilet seat cover A toilet seat cover is provided for preventing contact between the human buttocks and the toilet seat when the sheet is disposed and aligned with the toilet seat. A microbiocidal shield is created by the perspiration from the buttocks contacting a water-s... | 05/24/1988 |
| 4744976 | Erodible matrix for sustained release bioactive composition A sustained release composition for releasing a biologically active compound into an aqueous liquid environment comprises the biologically active compound dispersed in a bioerodible matrix, the matrix comprising a mixture of (a.) 5% to 99.5% by weight of ... | 05/17/1988 |
| 4738898 | Microencapsulation by interfacial polyaddition A variety of materials, e.g., colorants, agricultural chemicals, pharmaceuticals, etc., are conveniently microencapsulated within polyurea skin membranes by interfacial polyaddition, by emulsifying a polyisocyanato hydrophobic liquid in an essentially aqu... | 04/19/1988 |
| 4734281 | Method for concurrently emitting vapors of sex pheromones of different insects An efficient cost- and labor-saving method is proposed for controlling the population of two kinds or more of different species of insectan pests in a field by means of distributing dispensers of sex pheromone compounds for the respective species of the i... | 03/29/1988 |
| 4732762 | Timed release pest control composition and means A controlled slow release pest control composition comprising an encapsulated pesticide, carbon and plaster.... | 03/22/1988 |
| 4722838 | Self-microencapsulating controlled release pesticide compositions This invention relates to a self-microencapsulating pesticidal composition consisting essentially of a solution of a polymeric barrier material in an organic solvent system, a dissolved or dispersed pesticidal agent and a surfactant.... | 02/02/1988 |
| 4707355 | Microencapsulated insecticidal bait formulations as fumigants A method of manufacturing and the product formed thereby are set forth; the product relates to an encapsulated insecticidal bait which in the preferred and illustrated embodiment has a surrounding shell about a core. The core is formed of a volatile fumig... | 11/17/1987 |
| 4701326 | Membrane-coated hydrogel encapsulated nematodes Method and composition for an insecticide comprising a hydrated hydrogel capsule containing an insecticidally effective amount of at least one nematode capable of infecting an insect host, which capsule has sufficient hydration to maintain the viability a... | 10/20/1987 |
| 4698264 | Particulate composition and process for making same A solid, water-dispersible, delayed-release particulate composition comprising: a matrix composition, a relatively small amount of an active ingredient insoluble in and uniformly distributed through the matrix composition, the matrix composition comprisin... | 10/06/1987 |
| 4690786 | Process for producing a microcapsule containing a liquid active material A process for producing a microcapsule containing a liquid active material is described, comprising the steps of: (1) dissolving in an organic solvent a polymer, esp. a polysulfone and an active material which has a limited solubility of about 0.01 to about 2 ... | 09/01/1987 |
| 4666706 | Delayed release insecticidal composition and method of making same A chemical complex of a biocidal agent such as ortho-phenylphenol and chlorpyrifos and a non-ionic polymer of 2-ethyl oxazoline (PEOx). The complex is compatible with and contained in a plastic film such as polyethylene, polypropylene and poly(vinyl chlor... | 05/19/1987 |
| 4644021 | Sustained release antimicrobial agents and methods of fouling control using the same Sustained release antimicrobial agents comprising a clathrate compound composed of a water-soluble antimicrobial agent, and 1,1,6,6-tetraphenyl-2,4-hexadiyne-1,6-diol or 1,1-di(2,4-dimethylphenyl)-2-propyne-1-ol, and methods of fouling control using ... | 02/17/1987 |
| 4615883 | Hydrogel encapsulated nematodes Method and composition for an insecticide comprising a hydrated hydrogel capsule containing an insecticidally effective amount of at least one nematode capable of infecting an insect host, which capsule has sufficient hydration to maintain the viability a... | 10/07/1986 |
| 4435383 | Slow release pesticide formulations This invention relates to a one-phase, solid controlled release pesticidal composition consisting essentially of a pesticide in homogeneous combination with a cross-linked copolymer prepared from hydrophobic monomers, selected from styrene and -met... | 03/06/1984 |
| 4193889 | Microencapsulation with modified aliphatic polyisocyanates Microcapsules and a process for the production of these microcapsules the walls of which consist of polycondensates of a film-forming aliphatic polyisocyanate containing at least one biuret group or polyaddition products thereof with a chain-extending age... | 03/18/1980 |
