Patent ID: 11867873
Assignee: ZEON CORPORATION
Field: Optics (Instruments)
Classification: CPC G  B  C | IPC B  C  G

Claim 0:
1. A method of producing a multilayer optical film including:
an A layer formed of an alicyclic structure-containing polymer resin; and
a B layer disposed on at least one surface of the A layer to be in direct contact therewith, the B layer being a single layer and an outermost layer of the multilayer optical film and serving as a masking layer, wherein
the B layer is a cured product of a material Y including a dispersion of a crosslinkable polymer (a) and solid particles (b),
the B layer has a thickness tB of 10 μm or more and 25 μm or less,
the crosslinkable polymer (a) has a glass transition temperature of 0° C. or higher and 40° C. or lower and has a particle shape having a volume-average particle diameter of 500 nm or less, and
a peeling strength between the A layer and the B layer is 0.005 N/50 mm or more and 0.05 N/50 mm or less,
the method comprising the steps of:
applying the material Y including the dispersion of the crosslinkable polymer (a), and the solid particles (b) onto a surface of the A layer, to form a layer of the material Y; and
curing the layer of the material Y.