Surface-modified plastic plate

A surface-modified plastic plate for use in a window, which comprises a laminate consisting of:

• a plastic plate;
• a cured film of a heat-curable primer composition comprising, at least one member selected from the group consisting of a compound represented by the formula (I):
• ##STR12## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and each represents a substituted or unsubstituted alkyl group, an aryl group or an alkenyl group, each of these groups having 1 to 13 carbon atoms, X and Y are the same or different and each represents a hydrolyzable group selected from the group consisting of an alkoxy group, a halogen atom and an acyloxy group, a, b, c and d are each an integer of 0 or 1, e is an integer of 0 to 4, and a total of a, b and e is an integer of 2 to 4, a hydrolyzate of said compound and a condensate of said compound, said cured film being formed on a surface of the plastic plate in a film thickness of 0.1 to 10 .mu.m;
• and an inorganic material layer formed onto the cured film by a physical deposition using an inorganic material selected from the group consisting of SiO, SiO.sub.2, ZrO.sub.2, Al.sub.2 O.sub. 3, TiO.sub.2, Ti.sub.2 O.sub.3, Y.sub.2 O.sub.3, Yb.sub.2 O.sub.3, MgO, Ta.sub.2 O.sub.5, CeO.sub.2 and HfO.sub.2, at a forming speed of the inorganic material layer in the range of 0.02 to 2.0 nm/sec., and having a thickness of 0.25 .mu.m or more but less than 1.0 .mu.m.

A surface-modified plastic plate, which is a laminate consisting of:

• a plastic substrate;
• a cured film of an actinic ray-curable primer composition comprising a binder component consisting of 30 to 100 parts by weight of (a) at least one component selected from phosphagen compounds represented by the formula:
• ##STR13## wherein R.sup.2 is ##STR14## wherein R.sup.1 is CH.sub.3 or hydrogen atom and l is an integer of 1 to 4, said component (a) having a number average molecular weight of 200 to 20,000 and having 0.1 to 10 moles of polymerizable unsaturated double bond-containing groups per 1 kg of said component (a);
• and, 0 to 70 parts by weight of (b) a polymerizable unsaturated monomer copolymerizable with said component (a), a total amount of said component (a) and said component (b) being 100 parts by weight, said cured film being formed onto a surface of the plastic substrate in a film thickness of 0.1 to 10 .mu.m;
• and an inorganic material layer formed onto the cured film by a physical deposition using an inorganic material selected from the group consisting of SiO, SiO.sub.2, ZrO .sub.2, Al.sub.2 O.sub.3, TiO.sub.2, Ti.sub.2 O.sub.3, Y.sub.2 O.sub.3, Yb.sub.2 O.sub.3, MgO, Ta.sub.2 O.sub.5, CeO.sub.2 and HfO.sub.2, at a forming speed of the inorganic material layer in the range of 0.05 to 2.0 nm/sec., and having a thickness of 0.1 to 0.8 .mu.m.