To provide a coating agent used for producing a rubber product which has a coating film excellent in solvent resistance and is excellent in ozone resistance, and to provide such a rubber product and a pneumatic tire.SOLUTION: The coating agent, which is applied onto a surface of a rubber base material to form a coating film, comprises a main agent and a curing agent. The main agent contains a polymer obtained by polymerizing a (meth)acrylate, and a solvent. The polymer has a hydroxyl group. The curing agent contains an isocyanate compound. A coating film formed using the coating agent has an elongation at break of 50% or more.SELECTED DRAWING: None
【課題】耐溶剤性に優れる被膜を有し、耐オゾン性に優れるゴム製品の製造に用いられる塗布剤、並びに、そのようなゴム製品、及び空気入りタイヤを提供する。【解決手段】ゴム基材の表面上に塗布し被膜を形成するための塗布剤であって、塗布剤が主剤と硬化剤とを有し、主剤が(メタ)アクリル酸エステルを重合してなる重合体及び溶剤を含有し、上記重合体が水酸基を有し、硬化剤がイソシアネート化合物を含有し、塗布剤を用いて形成される被膜の切断時伸びが50%以上となる、塗布剤。【選択図】なし
COATING AGENT, RUBBER PRODUCT, AND PNEUMATIC TIRE
塗布剤、ゴム製品、及び空気入りタイヤ
2019-01-17
Patent
Electronic Resource
Japanese
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