Abstract: The present invention provides an ignition timing control device and ignition timing control system for an internal combustion engine, capable of controlling an ignition timing of the engine promptly in response to a change in engine operating conditions. An ignition timing adjustment unit (43) is adapted to correct the ignition timing to a proper ignition timing in a retard region with reference to a maximum advance value based on a knocking signal outputted from a knocking detection unit (41) and a reference ignition signal (A) outputted from an external electronic control unit (37). The output signal from the ignition timing adjustment unit (43) can be thus promptly adjusted by retarding the ignition timing relative to a reference ignition timing given from the external electronic control unit (37) upon detection of engine knocking.

Abstract: An self-adhesive article which is produced by forming an adhesive layer from an adhesive consisting essentially of a polymer of which is soluble in or swellable by an iso-thiocyanate, impregnating the adhesive layer with an iso-thiocyanate to provide a biocidal self-adhesive, and applying the biocidal self-adhesive to at least one surface of a base material. A high concentration of the iso-thiocyanate can be held in the adhesive layer, and the self-adhesive article is put to uses intended for the purpose of providing bactericidal, fungicidal and microbiocidal effects in building and food-related fields and the like.

Abstract: A self-adhesive article which is produced by forming an adhesive layer from an adhesive consisting essentially of a polymer which is soluble in or swellable by an iso-thiocyanate, impregnating the adhesive layer with an iso-thiocyanate to provide a biocidal self-adhesive, and applying the biocidal self-adhesive to at lesat one surface of a base material. A high concentration of the iso-thiocyanate can be held in the adhesive layer, and the self-adhesive article is put to uses intended for the purpose of providing bactericidal, fungicidal and microbiocidal effects in building and food-related fields and the like.