ORGANIC GLASS LAMINATE

摘要

The purpose of the present invention is to provide an organic glass laminate having excellent scratch resistance, wear resistance, wet adhesion, transparency, and weather resistance. This organic glass laminate comprises, in the following order, at least an organic glass substrate, a primer layer, and a hard-coat layer, wherein: the hard-coat layer is formed of a cured product of a resin composition including an ionizing-radiation-curable resin and an ultraviolet absorbent; the ultraviolet absorbent is included at a ratio of 0.5-10 parts by mass per a total of 100 parts by mass of the ionizing-radiation-curable resin; and the pencil hardness of the organic glass laminate and the initial value, as well as values found before and after a predetermined accelerated weathering test, of the haze and the yellow index of the organic glass laminate are set so as to fall within specific ranges.

主权项

1. An organic glass laminate having at least an organic glass base substrate, a primer layer, and a hard-coat layer in this order, wherein
the hard-coat layer is formed of a cured product of a resin composition containing an ionizing-radiation-curable resin and an ultraviolet absorbent; the ultraviolet absorbent is contained at 0.5 to 10 parts by mass per a total of 100 parts by mass of the ionizing-radiation-curable resin; the pencil hardness as measured from the hard-coat layer side is HB or more and 2H or less; the haze is 3% or less, and the difference in the haze before and after the following accelerated weathering test is 20% or less; and the yellow index is 2 or less, and the difference in the yellow index before and after the following accelerated weathering test is 5 or less, where, (accelerated weathering test) by using an accelerated weathering tester, a total sum of 50 cycles is carried out, with one cycle being under the following conditions (1), (2), and (3): (1) ultraviolet ray being radiated at 60 mW/cm2, 63° C., and 50 RH % for 20 hours, (2) in darkness at 30° C. and 98 RH % for 4 hours, and (3) water being sprayed for 30 seconds before and after the condition (2).