VARTM MOLDABLE UNSATURATED POLYESTER RESIN

To provide a VaRTM moldable unsaturated polyester resin that has normal temperature curability and is excellent in mechanical strength.SOLUTION: A VaRTM moldable unsaturated polyester resin consisting of a structural unit derived from an acid component and a structural unit derived from an alcohol c...

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Bibliographische Detailangaben
Hauptverfasser:	MORINAGA AKIRA, KUDO RYOJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide a VaRTM moldable unsaturated polyester resin that has normal temperature curability and is excellent in mechanical strength.SOLUTION: A VaRTM moldable unsaturated polyester resin consisting of a structural unit derived from an acid component and a structural unit derived from an alcohol component, wherein the acid component contains at least phthalic anhydride and an unsaturated dibasic acid, and the alcohol component contains at least propylene glycol and diethylene glycol, the unsaturated dibasic acid is at least one selected from the group consisting of maleic anhydride, maleic acid and fumaric acid, and a molar ratio of propylene glycol to diethylene glycol [propylene glycol/diethylene glycol] is 35/65 to 75/25.SELECTED DRAWING: None 【課題】常温硬化性を有し、優れた機械強度を有する成形体が得られるＶａＲＴＭ成形用不飽和ポリエステル樹脂を提供する。【解決手段】酸成分を由来とする構成単位及びアルコール成分を由来とする構成単位からなるＶａＲＴＭ成形用不飽和ポリエステル樹脂であって、前記酸成分が少なくとも無水フタル酸及び不飽和二塩基酸を含み、前記アルコール成分が少なくともプロピレングリコール及びジエチレングリコールを含み、前記不飽和二塩基酸が無水マレイン酸、マレイン酸及びフマル酸からなる群より選ばれる少なくとも１つであり、ジエチレングリコールに対するプロピレングリコールのモル比［プロピレングリコール／ジエチレングリコール］が、３５／６５～７５／２５である、ＶａＲＴＭ成形用不飽和ポリエステル樹脂。【選択図】なし