摘要:
A semiconductive polymer member is provided which comprises a semiconductive polymer composition, a polymer matrix and a conductive agent so that the member has an electric resistance ranging from 1 x 10 5 Ω ·cm to 1 x 10 10 Ω ·cm when measured under conditions of a temperature of from 15 to 32.5°C, a relative humidity of from 10 to 85% and a measuring potential of from 10 to 5000 V and has a positional variation in the electric resistance of not larger than ±20%. In addition, the electric resistance determined under conditions of a temperature of 15°C and a relative humidity of 10% is not larger than 50 times an electric resistance determined under conditions of a temperature of 32.5°C and a relative humidity of 85%. When the semiconductive polymer member is in the form of a roller, such a roller is suitable for use in electrophotography especially when it is employed in combination with a power supply for transfer devices, or a constant current or voltage power supply.
摘要:
A laminated product for use as motorcar seats, carpets, blankets, sofas, chair seats and the like wherein polyurethane foam having antistatic effect is laminated on the back side of a skin material to add antistatic capacity to the surface of the skin material without losing the comfortable feeling thereof. Specifically, the polyurethane foam has a surface apparent resistivity of less than 1 x 10¹³ ohms/square cm.
摘要:
A semiconductive polymer member is provided which comprises a semiconductive polymer composition, a polymer matrix and a conductive agent so that the member has an electric resistance ranging from 1 x 10 5 Ω ·cm to 1 x 10 10 Ω ·cm when measured under conditions of a temperature of from 15 to 32.5°C, a relative humidity of from 10 to 85% and a measuring potential of from 10 to 5000 V and has a positional variation in the electric resistance of not larger than ±20%. In addition, the electric resistance determined under conditions of a temperature of 15°C and a relative humidity of 10% is not larger than 50 times an electric resistance determined under conditions of a temperature of 32.5°C and a relative humidity of 85%. When the semiconductive polymer member is in the form of a roller, such a roller is suitable for use in electrophotography especially when it is employed in combination with a power supply for transfer devices, or a constant current or voltage power supply.
摘要:
An electroconductive polyurethane foam is obtained by adding and dispersing, in a composition constituting a polyurethane foam, a substance with an electron conduction mechanism, and a substance with an ionic conduction mechanism, and mechanically agitating the resultant mixture in the presence of inert gas. The substance with ionic conduction mechanism is preferably an antistatic agent selected from cationic surfactant, anionic surfactant, ampholytic surfactant, and non-ionic surfactant.
摘要:
A laminated product for use as motorcar seats, carpets, blankets, sofas, chair seats and the like wherein polyurethane foam having antistatic effect is laminated on the back side of a skin material to add antistatic capacity to the surface of the skin material without losing the comfortable feeling thereof. Specifically, the polyurethane foam has a surface apparent resistivity of less than 1 x 10¹³ ohms/square cm.
摘要:
A radio wave shielding material and a method of producing the same are disclosed. The radio wave shielding material comprises a plastic foamed body of three-dimensional network skeleton structure, a metal plating coat formed on the skeleton surface, and a coating of conductive rubber and/or plastic formed on the metal plating coat.