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Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 6953869 | Process for working up secondary components in the preparation of dinitrotoluene The present invention relates to a process for working up organic secondary components which are formed in the one-stage or two-stage nitration of toluene to dinitrotoluene. These organic secondary components are present in the acidic and alkaline waste water from t... | 10/11/2005 |
| 6936741 | Process for working up the waste water obtained in the preparation of dinitrotoluene The present invention relates to a process for working up or treating aqueous waste waters which are formed during the nitration of toluene to dinitrotoluene with nitrating acid. These aqueous waste waters containing acidic wash water and alkaline wash water from th... | 08/30/2005 |
| 6930216 | Method for the nuclear chlorination of ortho-xylene A method for the nuclear chlorination of ortho-xylene using a chlorinating agent in the presence of at least one Friedel-Crafts catalyst and chloro-substituted 2,8-dimethylphenoxathiin as co-catalyst. The co-catalyst used is preferably tetrachlorinated 2,8-dimethylp... | 08/16/2005 |
| 6906231 | Aromatic nitration reactions A process for the nitration of an aromatic compound, wherein the aromatic compound is admixed with a nitrating agent in the presence of an ionic liquid is described. The method for the nitration of aromatic compounds in (e.g. neutral) ionic liquids has advantages ov... | 06/14/2005 |
| 6825388 | Process for the preparation of 4-nitro-o-xylene The present invention relates to the process for vapor phase nitration of o-xylene using dilute nitric acid over H-beta zeolite. More particularly it relates to the selective formation of 4-nitro o-xylene by vapor phase nitration of 0-xylene using dilute nitric acid... | 11/30/2004 |
| 6768032 | Continuous isothermal process for preparing mononitrotoluenes in the presence of phosphoric acid The present invention relates to a continuous isothermal process for preparing mononitrotoluenes in the presence of a mixed acid component comprising mixtures of sulfuric acid and phosphoric acid with concentration of the resultant waste acid and recycling of the co... | 07/27/2004 |
| 6703532 | Process for the nitration of xylene isomers using zeolite beta catalyst This invention relates to a process for the nitration of xylene isomers by using zeolite-beta as a catalyst. This invention particularly relates to a process for the nitration of xylenes using solid acid catalyst, thus totally eliminating the disposal of ... | 03/09/2004 |
| 6620981 | Process for the preparation of nitrotoluenes The present invention relates to a process for the preparation of nitrotoluenesl. More particularly, the present invention relates to a process for the preparation of nitrotoluenes with high para -selectivity from toluene using zeolite beta with different... | 09/16/2003 |
| 6583327 | Continuous isothermal process for preparing mononitrotoluenes The present invention relates to a process for the continuous isothermal preparation of mononitrotoluenes with concentration of the resultant waste sulfuric acid and recycling of the concentrated waste sulfuric acid to the process.... | 06/24/2003 |
| 6515189 | Reactions of aromatic compounds A method of reacting an aromatic compound with an immiscible reacting agent involves the passage of the reactant along a flow path having a width of from 10 to 1000 μm in such a way that essentially laminar flow of the reactant takes place. Reaction take... | 02/04/2003 |
| 6506948 | Toluene extraction of dinitrotoluene wash water This invention relates to an improvement in a process for the production of dinitrotoluene and particularly to the recovery of dinitrotoluene and organic by-products from the wastewater and wash waters generated in the process. Wastewater and wash water s... | 01/14/2003 |
| 6303820 | Process for the preparation of nitrosobenzenes The invention relates to a process for the preparation of nitrosobenzenes from aromatic amines by oxidation with hydrogen peroxide in the presence of sodium molybdate dihydrate and an inert organic solvent.... | 10/16/2001 |
| 6291726 | Process for nitration of aromatic compounds using a non-acid type nitration process The nitration of aromatic compounds is achieved in high yield and selectivity by using oxygen activated by an inorganic catalyst and nitrogen dioxide. Since this process uses neither concentration nitric nor sulfuric acids, the generation of spent waste a... | 09/18/2001 |
| 6284894 | Preparation of allylic aromatic compounds A process for the preparation of an allylic aromatic compound in which an aromatic amine is reacted first with a nitrite and then with an allylic olefin having an eliminatable terminal substituent. Novel allylic derivatives of disubstituted benzene compou... | 09/04/2001 |
| 6274775 | Process for the preparation of nitrosobenzenes The invention relates to a process for the preparation of nitrosobenzene from aromatic amines by oxidation with hydrogen peroxide in the presence of a catalyst based on compounds of tungsten and/or molybdenum without the addition of the organic solvents c... | 08/14/2001 |
| 6255542 | Process for preparing 2-chloro-4-nitroalkylbenzene A process for preparing 2-chloro-4-nitroalkylbenzenes is provided which comprises a ring chlorination of 4-nitroalkylbenzenes with elemental chlorine or chlorine-releasing compounds in liquid phase and in the presence of Friedel-Crafts catalysts and speci... | 07/03/2001 |
| 6242657 | Method for producing aromatic nitro compounds In the reaction of aromatic compounds with nitrating acids comprising HNO3 and, if appropriate, H2 SO4 and/or H2 O and/or H3 PO4 to form aromatic nitro compounds, according to the invention... | 06/05/2001 |
| 5847240 | Process for reducing tetranitromethane in compositions containing nitroaromatic compounds A process is disclosed for removing a light organic compound from a liquid composition comprising said light organic compound in admixture with a nitroaromatic compound, said light organic compound having a partial vapor pressure in said composition that ... | 12/08/1998 |
| 5763697 | Process for the nitration of aromatic compounds The selective introduction of a nitro group into an aromatic compound by mixtures of nitric acid and sulphuric acid, wherein the aromatic compound to be nitrated is conveyed to a central driving jet of the acid mixture in such a way that it surrounds the ... | 06/09/1998 |
| 5728901 | Nitration process which employs water tolerant Lewis acid catalysts A process for preparing a nitrated arene which comprises reacting an arene and nitric acid in the presence of a water tolerant Lewis acid catalyst under process conditions sufficient to form the nitrated arene and recovering the nitrated arene. Suitable L... | 03/17/1998 |
| 5648565 | Process for the adiabatic preparation of mononitrotoluenes Mononitrotoluenes can be prepared by intensively mixing together toluene, nitric acid, sulphuric acid and water, simultaneously or successively in their total amount, and, in the case of continuous preparation, redispersing the mixture at least twice, for... | 07/15/1997 |
| 5395995 | Process for the preparation and purification of nitroaromatics A process for the preparation and purification of nitroaromatics by nitration of the corresponding aromatics and subsequent melt crystallization. The residual melts which occur are recycled.... | 03/07/1995 |
| 5315043 | Aromatic nucleophilic fluorination A process for halogen exchange fluorination or fluoro-denitration of aromatic compounds having at least one replaceable non-fluorine halogen or nitro substituent with an anhydrous substantially molten alkali metal acid fluoride composition wherein the alk... | 05/24/1994 |
| 5247124 | Process for the preparation of substituted styrenes A process for preparing a substituted styrene by reacting a bisarylalkyl ether in the presence of an acid catalyst is disclosed. The process is preferably used for the preparation of 4-acetoxystyrene from 4,4'-(oxydiethylidene)bisphenol diacetate and 4-me... | 09/21/1993 |
| 5245092 | Process for preparing dinitrotoluene with low by-product content Process for preparing dinitrotoluene by reacting toluene with concentrated nitric acid. The process reacts toluene with a large excess of concentrated nitric acid at selected conditions to produce a product which has substantially reduced by-product conte... | 09/14/1993 |
| 5210339 | Process for nitrating benzocyclobutene compounds An improved process for the nitration of a substituted or unsubstituted benzocyclobutene compound in a reaction mixture comprising a nitrating agent, an unhalogenated carboxylic acid anhydride, clay and a solvent to produce a corresponding nitrobenzocyclo... | 05/11/1993 |
| 5194672 | Process for the preparation of substituted styrenes A process for preparing a substituted styrene by reacting a bisarylalkyl ether in the presence of an acid catalyst is disclosed. The process is preferably used for the preparation of 4-acetoxystyrene from 4,4'-(oxydiethylidene)bisphenol diacetate and 4-me... | 03/16/1993 |
| 5162583 | Benzylether derivatives Disclosed herein are the derivative of benzyl ether represented by the formula (I) ##STR1## which is useful as an intermediate compound of the derivatives of 1,5-diphenyl-1H-1,2,4- triazole-3-carboxamide represented by the formula (II), ##S... | 11/10/1992 |
| 5149890 | Process for the isolation of pure dinitrotoluenes Pure or substantially enriched 2,4- and 2,6-dinitrotoluene can be isolated from a mixture containing these isomers if such a mixture is distilled under a pressure of 0.5 to 20 mbar at a temperature of 80° to 200° C. with exclusion of reducing conditions... | 09/22/1992 |
| 5118880 | Method of preparing 2-bromo-4,6-dinitromesitylene A method of preparing 2-bromo-4,6-dinitromesitylene having only small amounts of impurities, by first mixing fuming sulfuric acid with bromomesitylene, and then adding concentrated nitric acid.... | 06/02/1992 |
| 5099080 | Process for preparing dinitrotoluene Described herein is a one pot continuous improved process for preparing dinitrotoluene by reacting toluene with concentrated nitric acid.... | 03/24/1992 |
| 5099079 | Process for separating acid from nitro substituted aromatics using a molten nitrate salt Described herein is a process for separating an acid impurity from a solution containing acid and a nitro substituted aromatic compound by contacting the solution with at least one molten nitrate salt.... | 03/24/1992 |
| 5099078 | Process for preparing dinitrotoluene Described herein is a one pot continuous process for preparing dinitrotoluene by reacting toluene with concentrated nitric acid.... | 03/24/1992 |
| 5095157 | Process for the preparation of 2-chloro-4-nitro-alkylbenzene In the preparation of 2-chloro-4-nitro-alkylbenzene by reaction of 4-nitro-alkylbenzene with elemental chlorine or chlorine-releasing compounds in the presence of a Friedel-Crafts catalyst in the liquid phase, particularly high selectivities in respect of... | 03/10/1992 |
| 5057632 | Process for preparing dinitrotoluene Described herein is a continuous process for preparing dinitrotoluene by reacting toluene with dilute nitric acid to produce mononitrotoluene, then reacting the mononitrotoluene with concentrated nitric acid to produce dinitrotoluene.... | 10/15/1991 |
| 5030776 | Process for producing nitrobenzenes Nitrobenzenes are prepared by nitrating benzenes in vapor phase using nitric acid as a nitrating agent and under continuous or intermittent feeding of sulfuric acid as a catalyst in the presence of a catalyst comprising sulfuric acid supported on a carrie... | 07/09/1991 |
| 5012019 | Process for purifying aromatic nitration products The present invention relates to a process for purifying an aromatic nitration product mixture comprising a nitrated aromatic compound, water, and nitric or sulfuric acid which comprises without regard to sequence: (a) removing at least a portion of said ... | 04/30/1991 |
| 5006325 | Process for the recovery of nitric acid This invention relates to an improved process for the recovery and regeneration of nitric acid from spent acid obtained from the mixed acid nitration of aromatic compounds. In that process a mixed acid of sulfuric acid and nitric acid is contacted with an... | 04/09/1991 |
| 5004846 | Process for producing nitrobenzenes Nitrobenzenes are prepared by nitrating benzenes in a vapor phase with dilute or concentrated nitric acid wherein the following (A) or (B) is used as a catalyst: (A) acidic sheet clay minerals ion-exchanged with polyvalent metals, or (B) acidic composite oxide... | 04/02/1991 |
| 5001286 | Process for separating sulphuric acid and nitric acid from dinitrotoluene mixtures obtained during the nitration of toluene Sulphuric and nitric acids present in dinitrotoluene are separated from the dinitrotoluene by adding up to 10 wt. % water (based on quantity of dinitrotoluene) to the mixture of dinitrotoluene, sulphuric acid and nitric acid, mixing and separating the aqu... | 03/19/1991 |
