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US 2026/0258255 A1Published application
Photochromic article, spectacles, and method for producing photochromic article
AssigneeHoya Lens Thailand Ltd.
InventorsTakeshi HIGUCHI, Kei KOBAYASHI
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Abstract
Provided is a photochromic article having a substrate, a primer layer formed from a primer layer forming polymer composition, and a photochromic layer containing a photochromic compound in this order. The primer layer forming polymer composition contains a polymer having a hydroxy group and a (meth) acryloyl group, and a blocked isocyanate.
Claims12
A photochromic article, comprising:
- a substrate;
- a primer layer formed from a primer layer forming polymer composition;
- and
- a photochromic layer containing a photochromic compound
- in this order, wherein
- the primer layer forming polymer composition includes
- a polymer having a hydroxy group and a (meth)acryloyl group, and
- a blocked isocyanate.
5 more elements
A method for producing a photochromic article, the method comprising:
- applying a primer layer forming polymer composition onto a substrate, thereby forming a primer layer;
- and
- forming a photochromic layer including a photochromic compound onto the formed primer layer, wherein
- the primer layer forming polymer composition includes
- a polymer having a hydroxy group and a (meth)acryloyl group;
- and
- a blocked isocyanate, and
- the method further comprising subjecting a laminate obtained by forming the photochromic layer to a heat treatment.
5 more elements
Dependencies are inferred from the claim text.