Polymerizable composition including polymerizable liquid crystal compound, film, and method of manufacturing film

    公开(公告)号:US10883048B2

    公开(公告)日:2021-01-05

    申请号:US15903314

    申请日:2018-02-23

    摘要: A polymerizable composition includes a polymerizable liquid crystal compound of Formula (I) and a urethane (meth)acrylate monomer including a urethane bond and three or more (meth)acryloyl groups: Q1-Sp1A-Lm-1A-Sp2-Q2  (I) In Formula (I), A represents a cyclic divalent group (at least one is a divalent saturated hydrocarbon ring group), L preferably represents —C(═O)O— or —OC(═O)—, m represents 3 to 12, Sp1 and Sp2 preferably are alkylene, and any one of Q1 and Q2 represents a polymerizable group. A film including a layer obtained by curing the polymerizable composition; and a film adjacently including a layer obtained by curing the polymerizable composition including a polymerizable liquid crystal compound represented by Formula (I) and a layer obtained by curing a composition including a urethane (meth)acrylate monomer and a manufacturing method thereof, are also disclosed. The polymerizable composition includes a polymerizable liquid crystal compound having low birefringence and provides a highly durable optical film.

    Laminated body, method for producing laminated body, and rearview mirror for vehicle

    公开(公告)号:US11072150B2

    公开(公告)日:2021-07-27

    申请号:US16450188

    申请日:2019-06-24

    摘要: A laminated body sequentially includes a substrate, an adhesive layer, and a multilayer film. The laminated body has characteristics of transmitting first polarized light and reflecting second polarized light having a polarization axis x that intersects a polarization axis y of the first polarized light. The multilayer film includes a plurality of first layers formed of a crystalline naphthalenedicarboxylic acid polyester and a plurality of second layers formed of a polymer other than the crystalline naphthalenedicarboxylic acid polyester, the first layers and the second layers being alternately stacked on top of each other. The first layers have a higher refractive index than the second layers on the polarization axis of the second polarized light, and the multilayer film has a thermal expansion coefficient of −80 [10−6/K] or more at a temperature 3° C. higher than a glass transition point of the multilayer film in the polarization axis direction of the first polarized light.