A sealing member is one used for a cylindrical lithium-ion battery. The sealing member is interposed between a bottom-closed cylindrical case and a cap, is made of perfluoropolymer, and has dimensions that meet the following relational expressions: when an axial distance from a cap upper surface to a leading end portion in a case is defined as HC, an axial distance from the cap upper surface to a leading end portion in the sealing member is defined as HG, a thickness of the sealing member is defined as TG, a value of TG divided by HG is defined as X (=TG/HG), and a value of HG divided by HC is defined as Y (=HG/HC),

X>0.800TG−0.324  (1)

Y<−0.778TG+1.670  (2)

Y>0.594X.sup.2−1.176X+0.913  (3).

Noise caused by vibration of a door hole seal is reduced. A door hole seal includes a first sheet having a slit formed therein and a second sheet covering the slit from an exterior side of a vehicle. At least a specific region of the second sheet is made of a rubber-like elastic body, the specific region extending from a portion corresponding to the slit to a vertically lower end of the second sheet.

Methods and systems are provided for a sealing device. In one example, a seal comprises a plurality of radial features and a plurality of axial features extending from a cylindrical body, the cylindrical body comprises a first material and a second material, wherein the second material is stiffer than the first material.

A sealing device includes a functional layer having a first major surface and a second major surface and a barrier layer directly or indirectly connected to the second major surface of the functional layer, wherein the functional layer has a surface roughness having a waviness factor W.sub.f. Also disclosed is a method for producing a sealing device and the use of a sealing device for waterproofing of a substrate.

The present disclosure provides a separator-integrated gasket and a manufacturing method therefor, with which the likelihood of the gasket peeling away from the separator can be reduced while reducing the number of manufacturing steps. The separator-integrated gasket includes gaskets 210, 220 that are provided integrally with a separator 200 forming a fuel cell, wherein the separator 200 is formed from carbon to which a thermoplastic first resin material has been added, and the gaskets 210, 220 are formed from a thermoplastic second resin material that is compatible with the first resin material.

An end seal member, which includes a contacting surface including a drainage cavity along the contacting surface. The end seal member also includes a seal material body including a central body protrusion projecting in a horizontal direction substantially orthogonal to the seal material body from an opposite face of the contacting surface. The end seal member also includes a first and second extending elements extending upward from the seal material body and a reinforcing metal plate within the seal material body. The contacting surface is substantially flat.

A sealant for screwing members contains: (a) a self-cross-linking aqueous emulsion; (b) a nanofiberized aramid fiber substance; and (c) a film-forming aid containing a mixture. The mixture contains a compound represented by formula 1: CH.sub.3O—(CH.sub.2CH.sub.2O).sub.n—H. In formula 1, n is 4 or more. An equilibrium reflux boiling point of the overall mixture is 280° C. or higher.

A cylinder head gasket with a carrier layer and at least one inserted sealing element, wherein the inserted sealing element has a passage opening for combustion gas, the inserted sealing element is fastened on the carrier layer on an outer side which is spaced apart from the passage opening, and the inserted sealing element has at least a first layer and at least one further layer. An engine component comprising the cylinder head gasket is disclosed, the engine component having an engine block unit, a cylinder sleeve unit which delimits the engine block unit at least in regions from a combustion chamber, and a cylinder head unit, wherein the cylinder head gasket is arranged between the cylinder head unit on one hand and the engine block unit and the cylinder sleeve unit on the other hand.

An aspect of the present invention is an acrylic rubber containing an alkyl acrylate, ethylene and vinyl acetate as monomer units, wherein a content of a polyvinyl alcohol in the acrylic rubber is 0.5 to 2% by mass.

An acrylic rubber containing: an alkyl acrylate unit; a crosslinking monomer unit; a unit of a bifunctional monomer represented by the following formula (A-1):

##STR00001##

wherein n represents 1 to 9, R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents an alkanediyl group having 2 to 4 carbon atoms; and an ethylene unit, wherein the acrylic rubber has a toluene insoluble content of 4 to 40% by mass.