摘要:
N,N-Dimethyl-N-alkylamine or -alkenylamine is prepared by reacting a higher alcohol and dimethylamine by passing hydrogen gas and dimethylamine into a reactor containing a catalyst for the reaction at a pressure of atmospheric pressure to 100 atm. at 150.degree. C. to 250.degree. C. and removing water produced in the reaction as a component of the mixed hydrogen and unreacted dimethylamine gas which is discharged from the reactor, wherein at the point in the reaction at which from 90 to 99% of the higher alcohol has reacted with dimethylamine, one of the following procedures is followed: i) the introduction of only dimethylamine gas into the reactor is stopped, and the reaction is allowed to continue at a temperature 20.degree. to 150.degree. C. lower than the reaction temperature recited above; ii) the introduction of only dimethylamine gas into the reactor is stopped while the temperature is decreased to a level of 20.degree. to 150.degree. C. lower than the temperature recited above, and the reaction is allowed to proceed at the reduced temperature; or iii) the introduction of only dimethylamine gas into the reactor is stopped immediately after decreasing the temperature to a level of 20.degree. to 150.degree. C. lower than the temperature recited above, and the reaction is allowed to continue at the reduced temperature.
摘要:
Coins, particularly game coins, which are soft and excellent in workability before the coining work and high in hardness and exhibit weak magnetism after the coining work are provided. The stainless steel for coins comprises C: not more than 0.03 wt %, Si: 0.1-1.0 wt %, Mn: 0.1-4 wt %, Ni: 5-15 wt %, Cr: 12-20 wt %, N: not more than 0.03 wt %, O: not more than 50 ppm, and, if necessary, at least one of Cu: 0.5-3.0 wt % and Mo: 0.1-2.0 wt % and austenite stabilization index M value of 20.0-23.0 and ferrite formation ratio F value of not more than 6. A method of producing coins of stainless steel is also provided which comprises subjecting a starting material of such a stainless steel to a cold rolling of 50%, heat-treating at 900.degree.-1100.degree. C. and subjecting to coining work of 15-25%.
摘要:
An image data encoding apparatus and decoding apparatus which perform encoding and decoding making effective use of the correlation of positional information of characteristic points of the luminance signal element and chrominance signal elements of image data. A first signal analysis unit analyzes the luminance signal Y, from which the low frequency component has been removed, using a filter having several resolution scales s, detects and connects the characteristic points from the results of the analysis, and produces line data. Based on the line data, the values of the results of analysis are extracted. A second signal analysis unit performs similar processing on the chrominance signal U and a third signal analysis unit performs similar processing on the chrominance signal V. First to third analysis result compression units compress the input signal by predictive encoding etc. The first to third signal analysis units produce the low frequency components of the luminance signal Y and the chrominance signals U and V. A low frequency component compression unit compresses the low frequency components. A transformation unit multiplexes and modulates the signal obtained by the above processing and inputs it to the transmission medium etc. connected to the encoding apparatus.
摘要:
A tertiary amino alcohol, being useful as an emulsifier, is defined by the formula (1) or (2): ##STR1## where R is a C.sub.2 to C.sub.24 straight-chain or branched alkylene group, an alicyclic alkylene group, an aralkylene group or --CH.sub.2 CH.sub.2 O).sub.p (CH.sub.2 CH.sub.2).sub.q (where p is 0 or a positive integer and q is a positive integer), R' is a C.sub.1 to C.sub.24 straight-chain or branched alkyl group or an aralkyl group and n is a positive integer of 2 to 50.
摘要:
An N-substituted amine is produced by reacting an alcohol or aldehyde with ammonia, a primary amine or a secondary amine in the presence of a catalyst comprising:(a) (1) copper, (2) a metal selected from the group consisting of chromium, manganese, iron and zinc and (3) a metal of the platinum VIII group;(b) (1) copper, (2) cobalt and (3) a metal of the platinum VIII group;(c) (1) copper, (2) a metal selected from the group consisting of chromium, manganese, iron, cobalt, nickel and zinc, (3) a metal of the platinum VIII group and (4) a metal selected from the group consisting of alkali metals and alkaline earth metals; or(d) (1) copper, (2) a metal selected from the group consisting of chromium, manganese, iron, cobalt, nickel and zinc, (3) a metal of the platinum VIII group and (4) a metal selected from the group consisting of aluminum, tungsten and molybdenum.
摘要:
A coin sorting device comprises a hopper (4) for holding a supply of coins. Within the hopper (4), a coin feeding disc (2) is provided for feeding the coin to a coin outlet (26). A coin transporting piece carrier (5) is rotated in synchronism with the coin feeding disc (2). The coin transporting piece carrier (5) is inclined to the coin feeding disc (2) at a predetermined angle. A plurality of coin transporting pieces (8) are protruded from the coin transporting piece carrier (5) passing through coin transporting piece reception holes (9, 10). A coin feeding belt (28) extends from the upper portion of the coin feeding disc (2) to the coin outlet (26). The coin is delivered in contact relation with the coin feeding belt (28). A belt driving pulley (33) is rotated by means of the coin feeding disc (2) in a frictionally well-contact relation therewith.
摘要:
An apparatus for effecting the liquid culture of a plant body (T) implanted on a nutrient broth medium with the nutrient broth medium permeating a nutrient broth support (10) formed of a porous or fibrous material. At this juncture, the nutrient broth support (10) is accommodated in a nursery chamber (20) maintained in an aseptic state, and is placed on a liquid impregnation/drainage controller (60) having the function of transmitting and receiving (replacing) the liquid, inside the nursery chamber (20) The liquid impregnation/drainage controller (60) causes the liquid (mainly a nutrient broth) supplied from an external nutrient broth supplying device (50) to be supported (impregnate)the nutrient broth support (10) placed. At the same time, the liquid impregnation/drainage controller (60) discharges the liquid supported by the nutrient broth support (10) by making use of, for instance, the capillary phenomenon or the like in correspondence with the state of its draining portion (62). The nutrient broth supplied to the plant body (T) is automatically replaced via the nutrient broth support (10) by making use of the liquid replacing function of the liquid impregnation/drainage controller (60).
摘要:
A coin conveyor for successively transporting coins comprises an elongated back plate and a plurality of tapered guide rollers arranged at respective opposite side edge portions of the back plate so as to guide and retain coins transported on the back plate.
摘要:
Novel quaternary ammonium compounds of formula (1) and (2): ##STR1## wherein R represents a straight or branched alkylene group containing from 2 to 24 carbon atoms, an alicyclic alkylene group, an aralkylene group or a group of the formula --CH.sub.2 CH.sub.2 O).sub.p (CH.sub.2 CH.sub.2).sub.q (in which p and q each represents a positive integer), R' represents a straight or branched alkyl group containing from 1 to 24 carbon atoms, an alkenyl group or an aralkyl group, R" represents an alkyl group containing 1 to 5 carbon atoms or an aralkyl group, X.sup.- represents an anionic group and n represents a positive integer of from 2 to 50 are disclosed. The quaternary ammonium compounds are useful as surfactants capable of serving as softening agents and antistatic agents for fabrics, hair and the like.