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US 6,638,606 B2Granted
Hardcoat film
AssigneeDai Nippon Printing Co., Ltd.
InventorsToshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
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AssigneeDai Nippon Printing Co., Ltd.
InventorsToshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
Estimating the term…
A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
A hardcoat for a plastic substrate for a hologram, comprising a coating composition containing an organic component having a polymerizable functional group and an inorganic filler, said organic component consisting essentially of an ionizing radiation curing resin having no hydrogen bond-forming group, wherein (1) at least a part of the inorganic filler is reticularly connected in the hardcoat, (2) the content of the inorganic filler in the surface of the hardcoat is higher than the content of the inorganic filler in the interior of the hardcoat, and (3) the surface of hardcoat has irregularities.
A hardcoat for a plastic substrate for a hologram, comprising a coating composition containing an organic component having a polymerizable functional group and an inorganic filler, said organic component consisting essentially of an ionizing radiation curing resin having no hydrogen bond-forming group, wherein (1) at least a part of the inorganic filler is reticularly connected in the hardcoat and (2) the weight ratio of the organic components to the inorganic filler is 2:8 to 7:3.
Dependencies are inferred from the claim text.