DEVIATION-PREVENTING COATING MATERIAL |
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| 申请号 | EP15800064 | 申请日 | 2015-05-27 | 公开(公告)号 | EP3150332A4 | 公开(公告)日 | 2018-06-27 |
| 申请人 | TOKAI OPTICAL CO LTD; | 发明人 | KATO ATSUSHI; HASE KANAME; | ||||
| 摘要 | [Problem to be Solved] A displacement prevention coating agent is provided which can prevent a displacement in lens processing, which is soluble in water and which exhibits a transparent appearance at least after being cured. [Solution] There is provided a displacement prevention coating agent with which the front and rear surfaces of a lens are coated so that when cutting processing is performed on an end surface of the lens where, for example, a water-repellent coat layer is formed as a membrane such that the end surface has a shape corresponding to a frame, a holding position of the front and rear surfaces of the lens held by a chuck device is prevented from being displaced, where the displacement prevention coating agent is formed of an aqueous solution whose main components are a hydrophilic resin, a surfactant having a perfluoro group and an emulsion and exhibits a transparent appearance at least after the formation of the membrane. Such a displacement prevention coating agent is used when the front and rear surfaces of a lens where for example, a water-repellent coating layer is formed as a membrane are chucked and held with a chuck device to which an adhesive tape is adhered, and thus when the lens is processed, a holding position held by the adhesive tape of the lens is unlikely to be displaced. | ||||||
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