SEALING RUBBER COMPOSITION FOR CAPACITOR

PROBLEM TO BE SOLVED: To provide a sealing rubber for a capacitor, which is superior in dry-up resistance and swelling resistance.SOLUTION: A sealing rubber composition for a capacitor comprises: a butyl rubber (A); a dispersant (B) having a hydrophobic group (a) consisting of polyolefin (c) and a h...

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Bibliographische Detailangaben
Hauptverfasser:	SHIBA TAKAHIRO, MUKAI TAKAO, TERANISHI MANABU, AKAZAWA YOSHIHIKO, TANABE FUMIYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a sealing rubber for a capacitor, which is superior in dry-up resistance and swelling resistance.SOLUTION: A sealing rubber composition for a capacitor comprises: a butyl rubber (A); a dispersant (B) having a hydrophobic group (a) consisting of polyolefin (c) and a hydrophilic group (b) including at least an onium salt group; and an inorganic compound (C) having a layered structure. The hydrophobic group (a) has a solubility parameter (SP value) of 6.9-8.9 and preferably 7.7-8.4.SELECTED DRAWING: None 【課題】本発明は、耐ドライアップ性と耐膨潤性において優れたコンデンサ用封口ゴムが得られることを目的とする。【解決手段】ブチルゴム（Ａ）と、ポリオレフィン（ｃ）からなる疎水基（ａ）と、オニウム塩基を少なくとも含む親水基（ｂ）とを有する分散剤（Ｂ）と、層状構造を有する無機化合物（Ｃ）とを含有し、疎水基（ａ）の溶解度パラメータ（ＳＰ値）が７．７〜８．４６．９〜８．９であるコンデンサ用封口ゴム組成物を用いる。【選択図】なし