COATING FILM-FORMING COMPOSITION AND COATING FILM FORMATION METHOD
PROBLEM TO BE SOLVED: To achieve formation of a coating film which improves poor appearance with respect to a transparent base material especially such as a polycarbonate by applying a coating film-forming composition composed of a specific composition.SOLUTION: There is provided a coating film-form...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To achieve formation of a coating film which improves poor appearance with respect to a transparent base material especially such as a polycarbonate by applying a coating film-forming composition composed of a specific composition.SOLUTION: There is provided a coating film-forming composition having the following constitution: (a) 100 pts.mass of a water-soluble acrylic polymer having a mass average molecular weight of 20000 to 100000, (b) 40 to 200 pts.mass of an organic compound having the following chemical structure, R-O-CH-CRR-OH (wherein, Rrepresents a hydrocarbon group having 1 to 6 carbon atoms which may have a branched structure; Rrepresents hydrogen or a hydrocarbon group having 1 to 3 carbon atoms; Rrepresents hydrogen or a hydrocarbon group having 1 to 3 carbon atoms; Rand Rmay be the same or different), (c) 25 to 75 pts.mass of water, and (d) 150 to 500 pts.mass of an alcohol which is liquid at room temperature other than (b).SELECTED DRAWING: None
【課題】本発明は、特定の組成からなる被膜形成組成物を塗布することにより、特にポリカーボネート等の透明な基材に対して、外観不良を改善した被膜の形成を実現することができる。【解決手段】以下構成からなる、被膜形成組成物。(a)質量平均分子量が20000〜100000の水溶性アクリル重合体 100質量部(b)以下の化学構造を有する有機化合物 40〜200質量部R1−O−CH2−CR2R3−OH(式中R1は炭素数が1〜6の、分岐構造を有しても良い炭化水素基であり、R2は水素または炭素数が1〜3の炭化水素基であり、R3は水素または炭素数が1〜3の炭化水素基であって、R2とR3は同一であっても異なっていても良い)(c)水 25〜75質量部(d)前記(b)以外の常温で液状のアルコール 150〜500質量部【選択図】なし |
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