Abstract:
A linear polyamide having a high glass transition temperature composed essentially of monomer units randomly distributed in the polymer chain, said monomer units having the formula
OR
WHEREIN R is a member selected from the group consisting of aliphatic, aromatic and aliphatic-aromatic radicals.
Abstract:
A process for the insolubilization of N-(vinyl)phenylacrylamide polymers which comprises polymerizing or copolymerizing by cationic catalysts thereby producing soluble polymers, and irradiating the resulting soluble polymers with light in the presence of a light polymerization initiator thereby polymerizing the vinyl groups remaining in said soluble polymers and threedimentional network structure polymers produced by the above mentioned process.
Abstract:
TRIFLUOROMENTHYL HYPOFLUORITE IS PRODUCED BY BLOWING CARBONYL FLUORIDE IN A BUBBLE STATE INTO ANHYDROUS HYDROGEN FLUORIDE THROUGH WHICH ELECTRIC CURRENT IS BEING PASSED, THEREBY FLUORINATING SAID CARBONYL FLUORIDE.
Abstract:
A MIXTURE OF LANTHANUM OXIDE, CALCIUM CARBONATE AND CHROME OXIDE IS FIRED TO PRODUCE A SOLID SOLUTION WHEREIN A PERCENTAGE OF THE LANTHANUM IONS OF THE LANTHANUM OXIDE HAVE BEEN REPLACED BY CALCIUM IONS. THIS SOLID SOLUTION IS THEN PULVERIZED AND MOLDED TO PRODUCE AND ELECTRODE OF HIGH ELECTRON CONDUCTIVITY ESPECIALLY APPROPRIATE FOR USE IN THE MAGNETO-HYDRO-DYNAMIC GENERATOR.
Abstract:
Two backup rolls having work rollers arranged on the peripheral surface thereof and adapted to roll thereon are arranged adjacently one above the other. The ends of said work rollers on each said backup roll are supported by a pair of holding disks, and a certain relative speed of rotation is given to said pair of holding disks and the backup roll so that the work rollers simultaneously rotate about their own axis and about the axis of the backup roll. The machine operates as a leveler which levels metal sheet passing between the rotating work rollers.
Abstract:
At least two horizontal perforated plates are vertically spaced. A powdered or granular carbonaceous substance is fed onto the lowermost of the perforated plates and, at the same time, a hot activating gas is introduced upwardly from below the lowermost horizontal perforated plate so that the activated portion of said powdered or granular carbonaceous substance is allowed to ascend to and form a fluidized bed on successively higher perforated plates. The activated carbon of the highest grade of quality collects on the uppermost perforated plate as the final product. The manufacture of activated carbon described above is accomplished by use of an apparatus which comprises, in combination, at least two horizontal perforated plates having holes of a fixed diameter distributed at a fixed rate, two inlets disposed at a lower part of the apparatus, one for admitting the carbonaceous substance and the other for permitting introduction of the activating gas, and two outlets disposed at an upper part of the apparatus, one for discharging the activated carbon as the product and the other for releasing the spent activating gas.
Abstract:
The distance between reflection mirrors of a laser resonator is finely regulated over a wide range by driving a servo-motor upon an error signal produced due to a variation of frequency of a laser beam, converting the rotational movement of the servomotor to a linear movement by using a rotation screw means, converting the linear movement to a linear fine movement by using a lever means and transmitting the linear fine movement to one of the reflection mirrors by using a spring means which exerts a linear force on the one mirror upon the linear fine movement.
Abstract:
Disclosed is a tackifying resin which is produced by polymerizing an oligomer of isoprene, isoprene-butadiene or isoprene-1,3-pentadiene using a metal halide as a catalyst.