Abstract: An improved process for the production of polyolefins in an autoclave reactor having several reaction zones operated at a pressure of 100 to 300 MPa and a temperature of 100 to 300.degree. C. is disclosed. Dunng operation, temperatures are measured continuously inside the autoclave reactor at specific points distributed along the reactor length, each of said measured temperatures is compared with a corresponding preset temperature and the detected deviation between each pair of preset and measured temperatures is used in regulating the amount of monomer and initiator fed into the autoclave through several feed inlets distributed along the reactor length, in order to minimize the temperature deviations and thus obtain an improved control of the polymerization process.

Abstract: A device for protecting an electrical subsea connector from seawater and increasing the magnetic conductivity in an inductive type electrical subsea connector is disclosed. The device is made up of a reservoir containing an oil-based ferromagnetic fluid under pressure. The reservoir is in communication with the female cavity of the connector and the female cavity is equipped with permanent magnets to prevent the magnetic fluid from leaking out. The ferromagnetic fluid is at a pressure exceeding the pressure of the surrounding seawater.