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7122642 |
Method for producing crystal polymorphs and crystal polymorphs produced thereby
A method to prepare new or unexpected polymorphs of materials which have not been observed, or to obtain a known polymorph under different conditions than those in which it is usually made, by...
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6759521 |
Polarization switching to control crystal form
A method to select and prepare polymorphs of materials by switching the polarization state of light employing non-photochemical laser-induced nucleation.
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6426406 |
Method for using laser light to control crystal form
A method to prepare new or unexpected polymorphs of materials which have not been observed, or to obtain a known polymorph under different conditions than those in which it is usually made, by...
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5104503 |
Photochemical dimerization of organic compounds
At least one of selectivity and reaction rate of photosensitized vapor phase dimerizations, including dehydrodimerizations, hydrodimerizations and cross-dimerizations of saturated and unsaturated...
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5035784 |
Degradation of organic chemicals with titanium ceramic membranes
Complex organic molecules, such as polychlorinated biphenyls can be degraded on porous titanium ceramic membranes by photocatalysis under ultraviolet light.
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4992614 |
Reactivation of partially deactivated catalyst employing ultrasonic energy
A solid catalyst composition which has undergone a partial loss of catalytic activity due to the accumulation of reaction product residue is treated in a chemical conversion process reaction zone...
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4874488 |
Photochemical dimerization and functionalization of alkanes, ethers, primary and secondary alcohols, phosphine oxides and silanes
The space-time yield and/or the selectivity of the photochemical dimerization of alkanes, ethers, primary and secondary alcohols, phosphine oxides and primary, secondary and tertiary silanes with...
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4849076 |
Continuous oxidation method
A method for oxidizing a substrate which is oxidizable by singlet oxygen is discolded. The first step of the method comprises establishing a flow to and from each of a plurality of successive...
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4839008 |
Homogeneous catalytic photochemical functionalization of alkanes by polyoxometalates
A method for functionalizing alkanes, which comprises: (a) combining one or a mixture of alkanes with a photochemically active polyoxometalate compound to obtain a reaction medium; (b) allowing...
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4749470 |
Residuum fluid catalytic cracking process and apparatus using microwave energy
A fluid catalytic cracking (FCC) process and apparatus which exposes a residuum to microwave energy to activate the residuum prior to feeding to a fluid catalytic cracking riser. The process and...
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4609444 |
Photochemical reactions for commercial synthesis
Photochemical reactions are conducted using polymer beads arranged as a monolayer, e.g. floating on the surface of a moving body of water. The polymer bead is impregnated with a reactant, floated...
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4582578 |
Method for the electrochemical conversion of a quadricyclane to a norbornadiene
A method based on a cyclic single electron transfer mechanism has been developed for the electrochemical initiation and interruption of the exothermic quadricyclane to norbornadiene conversion.
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4517063 |
Photochemical reactor and method for carrying out photochemical reactions therein
An apparatus for carrying out a photochemical reaction incorporates a housing (11) and a lid (15), removably affixed thereto, which together define a reaction chamber (20). The lid has an axial...
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4495041 |
Photochemical process using shape-selective photoassisted heterogenous catalyst compositions
Highly specific catalyst compositions are provided, comprising zeolites containing a photoassisting material, which is capable of catalyzing photoassisted heterogenous catalytic reactions within...
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4479859 |
Laser photochemical synthesis of benzene and its derivatives
A cw CO 2 tunable laser is employed to irradiate an allyl halide selected from allyl chloride, allyl bromide, allyl fluoride, 2-methyl-3-chloropropene, and 2,3-dichloropropene and contained in one...
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4466870 |
Organic sonochemistry process
The method of causing or promoting chemical changes involving the step of subjecting reactants to ultrasonic energy as a key treatment step, including methods of: (1) reducing aryl halides by...
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4456512 |
Photochemical reactor and method
Photochemical reactions are carried out by passing the fluid to be irradiated through a plurality of capillaries, each of which is surrounded by an actinic-radiation emitting plasma; the...
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4452678 |
Process and apparatus for the photochemical production of halogeno-alkanes and cycloalkanes
Halogenation of alkanes and of cycloalkanes by the action of ultraviolet upon a solution of the halogen in the alkane; the solution is prepared in advance and passes into the irradiated zone, after...
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4424805 |
Solar energy system and method of use
This invention relates to a solar energy system wherein chemical A is converted into chemical B in the presence of a photo-sensitizer with the absorption of considerable heat, which heat can be...
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4394858 |
Photochemical conversion and storage of light energy by endoergic isomerizations
A process is provided for the capture and storage of radiant energy in highly strained carbon containing ring structures of isomerizable compounds. The process includes exposing a photocatalyst...
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4338173 |
Catalytic isomerization process using photo-induced deligandation
A process is provided for inducing a catalytic isomerization reaction. The process involves exposing to optical radiation a gaseous mixture including a reactant unsaturated hydrocarbon and a...
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4152230 |
Photooxidation process
A photochemically initiated oxidation process for organic materials using only catalytic quantities of the photochemical agent by conducting the reaction in the presence of a compound of a variable...
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4089764 |
Process for preparation of β-bourbonene
A process for preparing β-bourbonene which comprises irradiating internally or externally an essential oil containing germacrene D, such as ylang-ylang oil, cananga oil, the essential oil of...
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4012305 |
Production of 1-methyl-3-phenylindans
A process for the production of 1-methyl-3-phenylindans by dimerization of styrenes in the presence of catalysts and of organic compounds which absorb light of from 2000 to 8000 A and which are...
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3878074 |
Vinylation of aromatic compounds
Aromatic compounds are vinylated by reaction with an ethylenic compound in the presence of certain metallic compounds and an organic solvent, the mixture being photocatalyzed by exposure to the...
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3849274 |
PROCESS FOR COUPLING ORGANIC MOLECULES
A process for coupling organic molecules involving the step of irradiating an organic compound with ultraviolet light in the presence of hexachlorobenzene, hexabromobenzene or hexaiodobenzene under...
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3833491 |
PRODUCTION OF MACROCYCLIC COMPOUNDS
Cyclic ketone di- and triperoxides are converted at temperatures of from about 20°C. to 300°C. by the use of ultrasonic energy to macrocyclic hydrocarbons and macrocyclic lactones.
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3719571 |
PHOTODECOMPOSITION OF DIHYDRO-AROMATIC AND SIMILAR ANHYDRIDES
A system for storage and retrieval of information comprising the use of non-fluorescent material capable of conversion to a fluorescent material under light of a particular wavelength, or heat,...
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3626015 |
NOVEL PHOTOCHEMICAL REACTIONS OF TRANS-α-SANTALATE AND NOVEL COMPOUNDS RESULTING THEREFROM
Ultraviolet irradiation of ethyl trans-α-santalate to obtain, initially, (1) ethyl trans-α-santalate and ethyl cis-α-santalate and, on further irradiation, to obtain the novel compounds, (2)...
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3528898 |
PROCESS FOR THE PREPARATION OF MACROCYCLIC COMPOUNDS BY PHOTOLYTIC DECOMPOSITION OF CYCLIC KETONE PEROXIDES
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3507761 |
NOVEL PHOTOCHEMICAL REACTIONS OF 2-CARENE COMPOUNDS AND NOVEL BICYCYLIC PRODUCTS RESULTING THEREFROM
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3483102 |
PHOTOSENSITIZED CYCLOADDING PROCESS
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3480533 |
PREPARATION OF SUBSTITUTED AROMATIC COMPOUNDS
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3453197 |
CYCLOBUTANE DERIVATIVES
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3445357 |
PROCESS FOR PREPARING CYCLIC ORGANIC COMPOUNDS
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3427241 |
PHOTOCHEMICAL METHOD OF PREPARING BICYCLO(1.1.0)BUTANE AND CYCLOBUTENE
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3405117 |
alpha-chloro-di-p-xylylenes
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3391207 |
Alkenyl cyclobutenes
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3387047 |
Alkenylcyclobutenes and method of preparing same
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3384658 |
Process for dimerizing aryl alkanes
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3380903 |
Photosensitization method of cyclization of myrcene
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3377399 |
Exo and endo 7-vinyl-bicyclo (3.2.0)-heptene-2
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3360449 |
Actinic light activated catalytic dehydrogenation of unsaturated hydrocarbons
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3350291 |
Method of preparing strained polycyclic hydrocarbons
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3350290 |
Photochemical production of cyclopropane
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3331854 |
Novel furan and thiophene compounds
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3305465 |
Photochemical process for the production of cyclobutadiindene
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3301774 |
Conducting chemical reactions by means of high energy ionizing radiation
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3288869 |
Process for the preparation of tricyclo-[3. 3. 2. 04, 6] deca-2, 7, 9-triene
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3271121 |
Ethylene-styrene copolymer as pour point depressant
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