ANTI-FOGGING ARTICLE AND ITS PRODUCTION PROCESS
First Claim
1. An anti-fogging article having a substrate and an anti-fogging film on at least part of the surface of the substrate, wherein:
- the anti-fogging film comprises a resin underlayer and a water-absorptive resin layer laminated in order on the substrate surface;
the water-absorptive resin layer is a water-absorptive resin layer composed mainly of a first cured epoxy resin obtained by reacting a water-absorptive resin layer-forming composition containing a first polyepoxide component consisting of a low molecular weight polyepoxide having a molecular weight of from 200 to 800 and a high molecular weight polyepoxide having a molecular weight of from 900 to 2,000 in a mass ratio of the low molecular weight polyepoxide;
the high molecular weight polyepoxide of from 30;
70 to 70;
30, and a first curing agent; and
the resin underlayer is a resin underlayer composed mainly of a second cured epoxy resin obtained by reacting a resin underlayer-forming composition containing a second polyepoxide component and a second curing agent, having water absorption property lower than that of the water-absorptive resin layer.
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Abstract
An anti-fogging article having a substrate and an anti-fogging film on at least part of the surface of the substrate, wherein the anti-fogging film comprises a resin underlayer and a water-absorptive resin layer laminated in order on the substrate surface, the water-absorptive resin layer is composed mainly of a first cured epoxy resin obtained by reacting a water-absorptive resin layer-forming composition containing a first polyepoxide component consisting of a low molecular weight polyepoxide having molecular weight of from 200 to 800 and a high molecular weight polyepoxide having molecular weight of from 900 to 2,000 combined in mass ratio of from 30:70 to 70:30, and a first curing agent, and the resin underlayer is composed mainly of a second cured epoxy resin obtained by reacting a resin underlayer-forming composition containing a second polyepoxide component and a second curing agent, and has water absorption property lower than the water-absorptive resin layer.
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Citations
21 Claims
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1. An anti-fogging article having a substrate and an anti-fogging film on at least part of the surface of the substrate, wherein:
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the anti-fogging film comprises a resin underlayer and a water-absorptive resin layer laminated in order on the substrate surface; the water-absorptive resin layer is a water-absorptive resin layer composed mainly of a first cured epoxy resin obtained by reacting a water-absorptive resin layer-forming composition containing a first polyepoxide component consisting of a low molecular weight polyepoxide having a molecular weight of from 200 to 800 and a high molecular weight polyepoxide having a molecular weight of from 900 to 2,000 in a mass ratio of the low molecular weight polyepoxide;
the high molecular weight polyepoxide of from 30;
70 to 70;
30, and a first curing agent; andthe resin underlayer is a resin underlayer composed mainly of a second cured epoxy resin obtained by reacting a resin underlayer-forming composition containing a second polyepoxide component and a second curing agent, having water absorption property lower than that of the water-absorptive resin layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification