| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to maintain the impermeability of a relatively small organic molecule comprising, e.g. methanol for a long period of time even under a mechanical load by fluorinating, sulfonating, oxidizing or activating the surface of a plastic molding, and then coating it with a silane coating material. SOLUTION: This method for coating a plastic molding comprises activating the surface of a plastic molding by fluorination, sulfonation, oxidization or the like, coating the surface with a silane coating material preferably containing a silane compound represented by the formula (wherein A is a 1-20C alkylene group of which the nonadjacent methylenes except methylenes at theαandωpositions can be substituted by the oxygen atoms of an ether functional group; and R is a 1-4C alkyl group) and bisphenol A as a dihydroxy compound serving to crosslink, and curing the coating.</p> |
