Abstract: Process for preparing alkylated amines The present invention relates to a process for preparing a compound of the formula (I) by reacting a compound of the formula (II) with a compound of the formula (III) (RO)2CO (III) or a compound of the formula (IV) in the presence of a zeolite of the NaY faujasite type, where Ar, X, R and n are each as defined in claim 1.

Abstract: A network unit for the reception and forwarding of data packets and for use in a stack of similar units includes a data processor and cascade control logic for the exchange of control frames with others of said units in the stack. The cascade control logic is operative to cooperate by means of the control frames in an automatic process for incrementally applying stack numbers to the units in the stack. The cascade control logic can retain a stack number in storage and the data processor is operative to execute a program to apply to the network unit and the other units progressive stack numbers which accommodate previously applied and retained stack numbers. The network unit can act as a master applying the program to the other units and as a slave whereupon it receives a stack number determined by another unit in the stack.

Abstract: A method for treating a metal comprises subjecting the metal to electrolysis in the presence of an electrolyte using alternating pulses of voltage and/or current, said alternating pulses being of opposite polarity, wherein if the electrolyte is an aqueous electrolyte it is an aqueous solution of a salt selected from the group consisting of alkali metal salts, alkali earth metal salts, aluminium salts and amnonium salts. The method is effective in improving the surface properties of the metal, such as hardness, friction and wear properties.

Abstract: This specification describes an igniter, particularly for gas turbine engines, and comprising two or more electrodes separated by a body of insulating or semi-conducting material and having exposed working surfaces between which sparks may pass, at least part of the working surface or surfaces of at least one of the electrodes comprising a host material in which Co or Ni predominates alloyed or compounded with one or more additional metals selected from the group consisting of Ru, Rh, Pd, Ir, Pt, Ag and Au. Preferably, the additional metal is platinum which is present in an amount of 1 to 20 wt.% of the total metal content.