CLEAR COAT COMPOSITION COMPRISING HYPERBRANCHED DENDRITIC HYDROXY FUNCTIONAL POLYESTER

PROBLEM TO BE SOLVED: To provide a hyperbranched dendritic hydroxy functional polyester suitable for preparing a coating composition having a high solid ratio and good surface optical characteristics, a production method of the polyester, a clear coat composition having the above characteristics, it...

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Bibliographische Detailangaben
Hauptverfasser:	ULRIKE CLAUSEN-MEIRING, BENEDIKT SCHNIER, TAKAGI HIROYUKI, PETRA WAGNER, FELDMANN BJOERN, SILKE HOTTENBACHER, OLIVER HILGE, TSUKAMOTO HIDEFUMI, BIANCA GIESEN, SABINE HOLTSCHULTE, TANJA BRICKE, VERONIKA LACKSTAEDTER, JULIA MELZER, TANIGUCHI HITOSHI, GUENTER KLEIN, POPPE ANDREAS
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 MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a hyperbranched dendritic hydroxy functional polyester suitable for preparing a coating composition having a high solid ratio and good surface optical characteristics, a production method of the polyester, a clear coat composition having the above characteristics, its use, and a substrate coated with the above composition.SOLUTION: The present invention relates to at least one hyperbranched, dendritic hydroxy functional polyester satisfying (OH number)≥180 measured in accordance with DIN 53240, and to a clear coat composition comprising the above polyester. The present invention also relates to a production method of the hyperbranched dendritic hydroxy functional polyester, use of the clear coat composition for producing a clear coat coating composition for automotive mass-production coating, and a substrate coated with the clear coat composition.SELECTED DRAWING: None 【課題】本発明の課題は、高い固体割合および良好な表面光学特性を有するコーティング組成物の作製のために適している超分岐樹枝状ヒドロキシ官能性ポリエステル、その製造方法、前記特性を有するクリアコート組成物、その使用、該組成物でコーティングされた基材を提供することである。【解決手段】本発明は、ＤＩＮ５３２４０により測定してＯＨ価≧１８０を有する少なくとも１つの超分岐樹枝状ヒドロキシ官能性ポリエステル並びに該ポリエステルを包含するクリアコート組成物に関する。さらに本発明は、超分岐樹枝状ヒドロキシ官能性ポリエステルの製造法、自動車量産塗装用のクリアコートコーティング組成物を製造するためのクリアコート組成物の使用および該組成物でコーティングされた基材に関する。【選択図】なし