1 Foreground code is running, interrupts are enabled. 2  Interrupt event sends an interrupt request to the CPU. 3  After completing the current instruction(s), the CPU begins the interrupt response. 4  automatically saves current program counter. 5  automatically saves some status (depending on CPU).
Impregnator or penetrating sealers are designed to penetrate below the. surface of the stone and either deposit solid particles in the pores of the stone, or coat the individual minerals below the surface. Penetrating. sealers work by restricting water, oil and dirt from entering the stone or tile.
Impregnation machines. Van Wees can offer three different machines for the impregnation of fibers and fabrics. 1  Dispersion impregnation. 2  Thermoset impregnation by reverse roller coater. 3  Thermoplastic resin impregnation with inline extruder.peed of impregnation is in the 3â10 meter/minute range. For impregnation of thermoplastic resins, Van Wees has developed a process in which the resin film is made by melting the polymer in an extruder and metering the film thickness on the impregnation roller.