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 |
| 4328078 | Method of producing carbon-13 by multiphoton decomposition of C3 F.sub. A method of producing carbon--13 by multiphoton decomposition of C3 F6, said material containing carbon--12 and carbon--13 isotopic species, comprising irradiating gaseous C3 F6 in a reaction chamber at a pressu... | 05/04/1982 |
| 4311570 | Chemical process on the surface of a rotating body A wide variety of chemical processes using thin films of reactants are carried out on the surface of a body rotating at high speed and the products are readily isolated (for example as fine particles or fibres) by using centrifugal force to fling the prod... | 01/19/1982 |
| 4298439 | Producing long life disproportionation products from a photo redox agent useful as a reducing medium for water, and the like The lifetime of the photo redox induced disproportionation products of ruthenium polypiridine complexes is significantly increased from about two milliseconds in a liquid phase to greater than thirty-six hours by depositing the complexes in the pores of t... | 11/03/1981 |
| 4287035 | Method for producing rapid pH changes A method of initiating a rapid pH change in a solution by irradiating the solution with an intense flux of electromagnetic radiation of a frequency which produces a substantial pK change to a compound in solution. To optimize the resulting pH change, the ... | 09/01/1981 |
| 4233131 | Process for preparing alkylene episulfides and episelenides A process for the preparation of alkylene episulfides or episelenides is provided which comprises contacting elemental sulfur or elemental selenium, respectively, with an olefin, preferably ethylene, while irradiating with electromagnetic radiation in the... | 11/11/1980 |
| 4230546 | Method of molecular specie alteration by nonresonant laser induced dielectric breakdown Irradiation of a molecular specie by itself or in the presence of a secondary material at a pressure above a threshold value for the particular system by a laser of predetermined minimum power and having a frequency displaced from an absorption line of th... | 10/28/1980 |
| 4202741 | Enrichment of nitrogen isotopes by induced isomerization of isocyanides The essentially monochromatic infrared radiation from a laser device with a frequency coincident with a vibrational absorption band of an isocyanide, for example, methyl isocyanide (CH3 NC), leads to isomerization to the corresponding nitrile, ... | 05/13/1980 |
| 4165269 | Method of making halogenated acetylenes Halogenated acetylenic compounds are prepared by irradiating a mixture of a reactant and a sensitizer with coherent light. The reactant has the general formula R--C2 HX4, R--C2 H2 X3, or R--C2 | 08/21/1979 |
| 4132727 | Method and apparatus for the manufacture of methanol A Method and Apparatus for the Manufacture of Methanol (CH3 OH) in connection with a fusion reaction chamber which comprises utilizing the heat of fusion reaction to dissociate calcium carbonate CaCO3 into CaO and CO2. The... | 01/02/1979 |
| 4124466 | Enhancing chemical reactions Methods of enhancing selected chemical reactions. The population of a selected high vibrational energy state of a reactant molecule is increased substantially above its population at thermal equilibrium by directing onto the molecule a beam of radiant ene... | 11/07/1978 |
| 4120767 | Photochemical method for carbon isotopic enrichment In the process of the invention an isotopic starting material comprising at least two isotopic forms of CF3 I and particularly a mixture of carbon-12 and carbon-13 isotopic species of CF3 I is selectively isotopically enriched by mea... | 10/17/1978 |
| 4070412 | Method for production of acetylene by laser irradiation Production of acetylene by pyrolytic cracking of hydrocarbons following lr volumertric heating by: doping the feed stock with an absorbing gas such as ethylene to absorb laser radiation in a controlled manner: applying laser radiation in the form of a sh... | 01/24/1978 |
| 4025408 | Deuterium separation by infrared-induced addition reaction A method for deuterium enrichment by the infrared-induced addition reaction of a deuterium halide with an unsaturated aliphatic compound. A gaseous mixture of a hydrogen halide feedstock and an unsaturated aliphatic compound, particularly an olefin, is ir... | 05/24/1977 |
| 4012301 | Method and apparatus for the initiation of chemical reactions Laser radiation is employed to initiate and promote chemical reactions by creating states of molecular vibrational mode excitation exceeding those appropriate to the translational temperature of the medium in one or more of the reactants. In favorable cas... | 03/15/1977 |
| 3951663 | Organic volume phase holographic recording media comprising an di-ketone Certain light sensitive -diketones dissolved in a cured light-insensitive transparent polymer host form recording media useful for recording volume phase holograms.... | 04/20/1976 |
| 3941670 | Method of altering biological and chemical activity of molecular species A method of altering (i.e., deactivating or activating) the biological activity of macromolecular species that employs laser beam radiation at a frequency that excites vibrational and rotational states of the irradiated species and at an intensity suffici... | 03/02/1976 |
