CPC G02B 1/041 (2013.01) [B32B 7/12 (2013.01); B32B 23/08 (2013.01); B32B 27/08 (2013.01); B32B 27/283 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); G02C 7/02 (2013.01); G02C 7/102 (2013.01); G02C 7/12 (2013.01); B32B 2250/03 (2013.01); B32B 2250/05 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/412 (2013.01); B32B 2307/42 (2013.01); B32B 2551/00 (2013.01)] | 2 Claims |
1. A functional laminate (A) having a first optical sheet (Aa), a second optical sheet (Ab) and a functional layer (Ac) existent between these two sheets and having photochromic properties, wherein
the first optical sheet (Aa) and the second optical sheet (Ab) are both made of polyvinyl alcohol resin, a surface modified area having a reactive functional group selected from hydroxy group, thiol group, carboxy group, amino group, sulfo group, (thio)isocyanate group, allyl group, (meth)acrylic group, vinyl group, epoxy group, oxetane group, thioepoxy group and silanol group is existent on the outer surface of at least one of the first optical sheet (Aa) and the second optical sheet (Ab), the functional layer (Ac) is a photochromic adhesive layer (Ac1) comprising a photochromic compound and a polyurethane urea resin, and the first optical sheet (Aa) and the second optical sheet (Ab) are directly bonded together by the photochromic adhesive layer (Ac1).
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