Abstract: Disclosed is an electrochemical device. The electrochemical device includes: (a) a composite separator including a porous substrate, a first porous coating layer coated on one surface of the porous substrate, and a second porous coating layer coated on the other surface of the porous substrate; (b) an anode disposed to face the first porous coating layer; and (c) a cathode disposed to face the second porous coating layer. The first and second porous coating layers are each independently composed of a mixture including inorganic particles and a binder polymer. The first porous coating layer is thicker than the second porous coating layer. The electrochemical device has good thermal stability and improved cycle characteristics.

Abstract: Liquid collector trays (5) are disclosed for use in vertical towers (7) in which vapor (9) moves upward and liquid (11) moves downward. The liquid collector trays (5) employ elongated plates (13) which in certain embodiments include a primary liquid collector trough (15) and a secondary liquid collector trough (17). In other embodiments, the primary liquid collector troughs (15) of adjacent plates (13) are aligned so as to form elongated, inwardly-tapering entrance channels (29) which are free of sharp corners. In further embodiments, when the liquid collector tray (5) is in its operative orientation and is viewed from above, each plate (13) includes first and second concave surfaces (31, 33), which collect liquid, and third and fourth convex surfaces (35, 37), which are adjacent to the first and second concave surfaces (31, 33) and serve to mechanically stabilize the plate (13).

Abstract: Disclosed are a separator for a battery, which comprises a gel polymer layer formed on a substrate, the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other, and an electrochemical device comprising the same separator. Also, disclosed is a method for preparing the gel polymer layer including a plurality of three-dimensional open pores interconnected with each other on a substrate.

Abstract: An apparatus and process for making a capacitor comprising a first capacitor plate element covered with a spacing material selected for forming a capacitor dielectric. The first capacitor plate element and the spacing material is encased with a second capacitor element. The second capacitor plate element is drawn for reducing the outer diameter thereof. A multiplicity of the capacitor elements are inserted within a second capacitor plate connector. The second capacitor plate connector is drawn for reducing the outer diameter of the metallic tube and for electrically interconnecting the multiplicity of the second capacitor plate elements with the second capacitor plate connector to form a second capacitor plate. The multiplicity of the first capacitor elements are interconnected with a first capacitor plate connector to form a first capacitor plate. The spacing material is replaced with a dielectric material to form the capacitor thereby.

Abstract: The present invention relates to a compound selected from the group consisting of compounds of formula: ##STR1## in which: R.sup.1 is selected from the group consisting of phenyl, phenyl substituted by a radical selected from C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, nitro, amino and cyano, and naphthyl,R.sup.2 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, and phenyl, or, together with the carbon atom to which they are attached, R.sup.1 and R.sup.2 form a polycyclic ring selected from the rings derived from fluorene, xanthene, indane, tetrahydronaphthalene, dihydrodibenzocycloheptene and dibenzocycloheptene,R.sup.3 is selected from the group consisting of isopropyl and tert. butyl, and a pharmaceutically acceptable acid addition salt thereof.Such a compound is useful as anti-hypertensive drug.

Abstract: The guanidines of formula ##STR1## in which R and R' are each hydrogen or methyl and the pharmaceutically acceptable acid addition salts thereof exhibit hypotensive effects.