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| 20100105968 | PRODUCTION PROCESS FOR CHLORINE-CONTAINING FLUORINE-CONTAINING COMPOUND - The production process of the present invention for a chlorine-containing fluorine-containing compound is characterized in that a reaction of adding chlorine atoms to a carbon-carbon unsaturated bond of a hydrogen-containing compound having a carbon-carbon unsaturated bond is carried out under the presence of a fluorine gas. The hydrogen-containing compound having a carbon-carbon unsaturated bond may be 3,4-dichlorobutene-1. Further, the present invention provides a process for producing efficiently and economically 1,2,3,4-tetrachlorohexafluorobutane from 3,4-dichlorobutene-1 described above. According to the present invention, chlorination and fluorination of the hydrogen-containing compound having a carbon-carbon unsaturated bond are carried out in a single step, and therefore a chlorine-containing fluorine-containing compound can be more economically produced at a higher yield than in a conventional process in which two reactions are individually carried out. | 04-29-2010 |
| 20100121118 | PROCESS FOR PRODUCING FLUORINE-CONTAINING COMPOUND - The process for producing a fluorine-containing compound such as 1,2,3,4-tetrachclorohexafluorobutane of the present invention is characterized in that a halogenated hydrocarbon compound such as 1,2,3,4-tetrachlorobutane is brought into contact with fluorine gas in a liquid phase or in a solid-liquid coexistence state in the absence of a solvent and a catalyst. According to the present invention, a fluorine-containing compound is readily produced from a halogenated hydrocarbon compound using neither a reaction solvent nor a reaction catalyst. | 05-13-2010 |
| 20100130798 | PRODUCTION PROCESS FOR 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE AND REFINING PROCESS - The production process for 1,2,3,4-tetrachlorohexafluorobutane of the present invention is characterized in that 1,2,3,4-tetrachlorobutane is reacted with fluorine in the presence of a solvent containing hydrogen fluoride. The 1,2,3,4-tetrachlorobutane may be obtained by chlorination of 3,4-dichlorobutene-1. Further, the present invention provides as well a process of refining 1,2,3,4-tetrachlorohexafluorobutane obtained in the manner described above. | 05-27-2010 |
| 20110071325 | PRODUCTION PROCESS AND PURIFICATION PROCESS FOR 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE - It is an object of the present invention to provide a process for producing 1,2,3,4-tetrachlorohexafluorobutane industrially inexpensively and efficiently by utilizing expensive fluorine gas efficiently and to provide a process which is capable of stably producing 1,2,3,4-tetrachlorohexafluorobutane and in which, by carrying out fluorination reaction at a low temperature, side reactions such as formation of a low-boiling substance due to cleavage of C—C bonds and formation of an excess fluoride are difficult to occur. The process for producing 1,2,3,4-tetrachlorohexafluorobutane of the present invention is characterized in that it includes feeding fluorine gas to 1,2,3,4-tetrachlorobutane using plural reactors in the presence of a solvent and in the absence of a catalyst to allow the 1,2,3,4-tetrachlorobutane and the fluorine gas to react with each other, wherein a part or all of unreacted fluorine gas discharged from one reactor is introduced into a reactor different from said one reactor. | 03-24-2011 |
| 20110112341 | PROCESS FOR PRODUCING 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE - The present invention provides a process for producing 1,2,3,4-tetrachlorohexafluorobutane having a high purity at a low cost industrially and efficiently. The process for producing 1,2,3,4-tetrachlorohexafluorobutane according to the present invention comprises a step of allowing 1,2,3,4-tetrachlorobutane to react with a fluorine gas to prepare a reaction product containing 1,2,3,4-tetrachlorohexafluorobutane and hydrogen-containing compounds as an impurity, and a step of introducing the reaction product into single or plural distillation columns and distilling to separate the hydrogen-containing compounds from the reaction product and thereby preparing purified 1,2,3,4-tetrachlorohexafluorobutane wherein the at least one of distillation columns has a theoretical plate number of 15 or more. | 05-12-2011 |
| 20110184209 | PROCESS FOR PRODUCING CARBONYL DIFLUORIDE - An object of the invention is to provide efficient, simple and inexpensive processes for the production of carbonyl difluoride, which is an attractive and important compound as a semiconductor etching gas or a semiconductor cleaning gas. | 07-28-2011 |
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| 20100056249 | GAMING MACHINE FOR VARYING NUMBER OF TRIGGER SYMBOLS AND CONTROL METHOD THEREOF - In a slot machine, a unit game in which symbols having been arranged are rearranged is displayed on a display. Then, a special game is displayed on the display in case where a predetermined condition has been met. In addition, in the slot machine, rearranged specific symbols are counted before a special free game and it is determined to increase the number of trigger symbols in the special free game according to the number of counted specific symbols. Since an award provided to a player is varied according to the number of trigger symbols rearranged in the special free game, a player's sense of expectancy can be focused on the special free game. | 03-04-2010 |
| 20100304829 | GAMING MACHINE AND METHOD FOR CONTROLLING THE SAME - In a gaming machine and a method for controlling the same, whether to start insurance is determined on a basis of a count value cumulatively incremented along with execution of unit games and counted by a counter, and an insurance start condition table defining a correspondence relationship between the count value and start of the insurance; and a first feature game and a second feature game are executed when it is determined to start the insurance. When it is determined to start the insurance, a first feature game may be executed; a condition of a second feature game may be determined on a basis of an outcome of the executed first feature game and a second feature game condition determination table defining a correspondence relationship between an outcome of the first feature game and a condition of the second feature game; and the second feature game may be executed under the determined condition. | 12-02-2010 |
| 20100304836 | GAMING MACHINE AND METHOD FOR CONTROLLING THE SAME - N symbol arrays are scrolled in M rows and N columns of display regions. In each of the symbol arrays, a normal symbol same as a certain normal symbol does not exist within (M−1) rows above and below the certain normal symbol. Therefore, two or more of the same normal symbols are not displayed in each column of display regions, and a maximum of N of the same normal symbols are displayed in all the display regions. Further, the same normal symbols as those present within (M−1) rows above and below the special symbol included in one symbol array do not exist within (M−1) rows above and below the special symbols included in the other symbol arrays. Therefore, when N of the same normal symbols are displayed, a maximum of one special symbol is displayed. | 12-02-2010 |
| 20110300919 | GAMING MACHINE CAPABLE OF REPEATEDLY EXECUTE A UNITARY GAME - The present invention provides a gaming machine which is capable of realizing an appropriate balance between players' profits and slot machine providers' profits. When a first number of bets have been selected, a control device executes a first basic unitary game which completes when a first time interval has elapsed after starting the game. When a second number of bets have been selected, the control device executes a second basic unitary game which completes when a second time interval shorter than the first time interval has elapsed after starting the game. On the basis of the fact that the first basic unitary game has been executed, the control device executes a first progressive game in which a first payout rate can be realized. On the basis of the fact that the second basic unitary game has been executed, the control device executes a second progressive game in which a second payout rate higher than the first payout rate can be realized. When a second number of bets have been selected, information relating to the second payout rate is displayed. | 12-08-2011 |
