AQUEOUS COMPOSITION AND COATING AGENT

PROBLEM TO BE SOLVED: To provide an aqueous composition which can obtain a coating agent that has good storage stability and provides a coating film having good alkali resistance, corrosion resistance and workability.SOLUTION: An aqueous composition contains a polyurethane resin (A) having a carboxy...

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Bibliographische Detailangaben
Hauptverfasser:	ENDA YASUMI, WATANABE SATOYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an aqueous composition which can obtain a coating agent that has good storage stability and provides a coating film having good alkali resistance, corrosion resistance and workability.SOLUTION: An aqueous composition contains a polyurethane resin (A) having a carboxyl group and a monoglycidyl ether compound (B). Preferably, the contents of the polyurethane resin (A) having the carboxyl group and the monoglycidyl ether compound (B) are polyurethane resin (A) having carboxyl group/monoglycidyl ether compound (B)=100/0.5 to 5 (mass ratio).SELECTED DRAWING: None 【課題】本発明の水性組成物によれば、保存安定性が良好であり、かつ得られる皮膜の耐アルカリ性、耐食性、および加工性が良好なコーティング剤が得られる。【解決手段】カルボキシル基を有するポリウレタン樹脂（Ａ）およびモノグリシジルエーテル化合物（Ｂ）を含有する水性組成物を用いる。好ましくは、カルボキシル基を有するポリウレタン樹脂（Ａ）およびモノグリシジルエーテル化合物（Ｂ）の含有量が、カルボキシル基を有するポリウレタン樹脂（Ａ）／モノグリシジルエーテル化合物（Ｂ）＝１００／０．５〜５（質量比）である水性組成物を用いる。【選択図】なし