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US 2025/0153462 A1Published application
Multilayer laminate
AssigneeKuraray Europe GmbH
InventorShinichi MUGURUMA
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Abstract
A multilayer laminate is provided that is capable of appropriately adjusting haze and transmittance. A multilayer laminate (1) according to one aspect of the present invention is a multilayer laminate wherein the following are at least laminated: a substrate (11), a first light-controlling layer (21) containing a liquid crystal molecule whose oriented state changes according to an applied voltage, and a second light-controlling layer (22) containing a photochromic material.
Claims6
1:
- A multilayer laminate, comprising:
- a substrate;
- a first light-controlling layer comprising a liquid crystal molecule whose oriented state changes according to an applied voltage;
- and
- a second light-controlling layer comprising a photochromic material, which are at least laminated.
2 more elements
2:
- The multilayer laminate according to claim 1, wherein
- the substrate comprises a first substrate and a second substrate, and
- the first substrate, the first light-controlling layer, the second light-controlling layer, and the second substrate are laminated in this order.
3:
- The multilayer laminate according to claim 1, wherein
- the first light-controlling layer is a polymer-dispersed liquid crystal in which a liquid crystal molecule is dispersed within a polymer, or a polymer network type liquid crystal in which a liquid crystal molecule is arranged inside a three-dimensionally reticulated polymer network.
4:
- The multilayer laminate according to claim 1, wherein
- the photochromic material is selected from the group consisting of:
- triarylmethane, stilbene, azastilbene, nitrone, fulgide, spiropyran, naphthopyran, spirooxazine, and quinone.
5:
- The multilayer laminate according to claim 1, wherein
- the second light-controlling layer is configured using polyvinyl butyral, and
- the photochromic material is dispersed within the polyvinyl butyral.
6:
- The multilayer laminate according to claim 1, wherein
- the multilayer laminate is used in a material configuring at least one of:
- window glass for a vehicle, a sunroof for a vehicle, and window glass for a building.