Displacement prevention coating agent
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United States of America Patent
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May 8, 2018
Issued Date -
N/A
app pub date -
May 27, 2015
filing date -
May 30, 2014
priority date (Note) -
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Abstract
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. The displacement prevention coating agent may coat the front and rear surfaces of a lens so that when cutting processing is performed on an end surface of the lens, a holding position of the front and rear surfaces of the lens held by a chuck device is prevented from being displaced. A water-repellent coat layer may be formed as a membrane such that the end surface has a shape corresponding to a frame. The displacement prevention coating agent may be formed of an aqueous solution whose main components are a hydrophilic resin, a surfactant having a perfluoro group and an emulsion.
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