摘要:
A fluid-filled elastic mount having an elastic body which elastically connects a first and a second support member, a closure member which cooperates with the second support member and the elastic body to define a fluid chamber, a partition member which divides the fluid chamber into a pressure-receiving chamber and an equilibrium chamber, and a restrictor passage for restricted fluid communication between the two chambers. The partition member consists of an integrally formed member which has a thin-walled inner portion and a thick-walled outer portion outside of the inner portion. The outer portion has a circumferential groove and is held in pressed contact with the second support member such that the groove is closed so as to define the restrictor passage. The inner portion includes a double-layered structure consisting of a first layer formed of a first elastic material, and a second layer formed of a second elastic material which has a larger modulus of elasticity than the first elastic material. The double-layered structure is elastically deformable due to a difference between pressures in the two chambers.
摘要:
A production method of a recording sheet characterized in that a void layer having a dry thickness of 25 to 60 &mgr;m is formed by coating, onto at least one surface of a support, a void layer-forming coating composition comprising fine inorganic particles having an average particle diameter of not more than 100 nm and a hydrophilic binder, as well as not more than 10 coarse particles per ml having a particle diameter greater the particle diameter R (in &mgr;m) represented by formula (1) described below. R=80000/L2 Formula (1) wherein L represents the total dry layer thickness (in &mgr;m) of said void layer.
摘要:
A plastic card provided with a magnetic stripe, which is very difficult to forge or alter and, even tough subjected to forgery or alteration, enables the forgery or alteration to be easily detected in appearance. The plastic card includes a card substrate and a hologram-magnetic stripe including, provided on said card substrate in the following order, an adhesive layer, a first magnetic recording layer, a second magnetic recording layer, a transparent continuous thin film layer and a hologram forming layer. The first magnetic recording layer and the second magnetic recording layer are such that one of the magnetic recording layers has a coercive force at least twice as high as the other magnetic layer and a Curie point at least 100.degree. C. below the other magnetic layer and, when the magnetic recording layers are heated at a temperature in the range of from the lower Curie point to 30.degree. C. below the lower Curie point, they become substantially identical to each other in saturation writing current value.
摘要:
A plastic card provided with a magnetic stripe, which is very difficult to forge or alter and, even tough subjected to forgery or alteration, enables the forgery or alteration to be easily detected in appearance.The plastic card comprises a card substrate and a hologram-magnetic stripe comprising, provided on said card substrate in the following order, an adhesive layer, a first magnetic recording layer, a second magnetic recording layer, a metallic reflecting layer and a hologram forming layer. The first magnetic recording layer and the second magnetic recording layer are such that one of the magnetic recording layers has a coercive force at least twice as high as the other magnetic layer and a Curie point at least 100.degree. C. below the other magnetic layer and, when the magnetic recording layers are heated at a temperature in the range of from the lower Curie point to 30.degree. C. below the lower Curie point, they become substantially identical to each other in saturation writing current value.