Sealing member

F - Mech Eng,Light,Heat,Weapons – 16 – J

Patent

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Details

F16J 15/10 (2006.01) C09K 3/10 (2006.01) F16J 15/02 (2006.01)

Patent

CA 2200593

Tubular layer of sealant (32) (preferably gel) on flexible (preferably tubular) carrier (30) provides advantageous sealing member, which can conveniently be compressed, e.g. in a tongue-and-groove joint (34, 36), to provide a sealed joint in items such as cable splice enclosures, car head lamp housings, gas meter casings, and domestic appliances. Styrene-alkylene or alkylmethacrylate-alkylene block copolymer gels coated (preferably co- extruded) on thermoplastic elastomer carriers are described. Gasket rings cut from such tubular articles, and provision of projecting fixing lugs for anchoring the articles to an object which is to carry them in use are also described.

On dépose une couche tubulaire de matériau d'étanchéité (32) (de préférence, du gel) sur un support (30) (préférablement tubulaire) flexible et on obtient un élément d'étanchéité avantageux que l'on peut comprimer de façon pratique, par exemple sous forme d'un assemblage (34, 36) à fausse languette, afin de constituer un joint étanche pour des articles tels que des boîtes d'épissure de câbles, des boîtiers de phares de voitures, des gaines de compteurs à gaz, et des appareils électriques domestiques. On décrit des gels de copolymère bloc de styrène-alkylène ou d'alkylméthacrylate-alkylène que l'on applique (de préférence par coextrusion) sur des supports élastomères thermoplastiques. On décrit également des joints d'étanchéité coupés à partir de tels articles tubulaires ainsi que la fourniture de tétons de fixation saillants destinés à ancrer les articles à un objet devant porter ceux-ci lors de leur utilisation.

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