Composition and film
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United States of America Patent
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Jul 28, 2020
Grant Date -
Jul 21, 2016
app pub date -
Jan 21, 2016
filing date -
Jan 21, 2015
priority date (Note) -
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Abstract
Methods for producing an optical element having a cured layer with a concavo-convex structure are described. Such a method includes: forming a composition layer on a base material by using a composition containing a polymerizable compound and a photo initiator; forming a pattern formative layer by pressure-contacting a mold; and forming the cured layer having the concavo-convex structure by photo-curing the pattern formative layer, wherein the polymerizable compound contains (a) a urethane (meth)acrylate monomer, the composition contains 0.005 to 0.5 part by mass of the photo initiator with respect to 100 parts by mass of the polymerizable compound, and the cured layer has a film thickness of the concavo-convex structure within a range of 0.5 mm to 1 cm.
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