DISPLAY SYSTEM
    3.
    发明申请
    DISPLAY SYSTEM 审中-公开

    公开(公告)号:WO2018138588A1

    公开(公告)日:2018-08-02

    申请号:PCT/IB2018/050105

    申请日:2018-01-08

    Abstract: A display system including a lightguide and first and second reflective layers disposed on opposite sides of the lightguide is provided. The lightguide has opposing first and second major surfaces and includes a light extraction pattern for extracting light that would otherwise be confined and propagate within the lightguide primarily by total internal reflection. Light extracted by the light extraction pattern exits the lightguide through at least one of the first and second major surfaces of the lightguide. Each of the first and second reflective layers has an average specular reflectance of at least 50% in a predetermined wavelength range. The light extraction pattern may be repeatedly imaged by the first and second reflective layers to produce three-dimensional stacked images of the light extraction pattern.

    MICROSPHERE-COATED POLYURETHANE ARTICLES AND METHODS OF MAKING THE SAME

    公开(公告)号:WO2020234697A1

    公开(公告)日:2020-11-26

    申请号:PCT/IB2020/054532

    申请日:2020-05-13

    Abstract: Described herein is a multilayered article (10) and methods of making and using such articles. The multilayered article (10) comprises: • (a) a microsphere layer (11) comprising a plurality of microspheres disposed in a monolayer; • (b) a bead bonding layer (12) comprising a first major surface and a second opposing major surface and the plurality of microspheres is partially embedded in the first major surface of the bead bonding layer, and comprises a thermoset polyurethane having a glass transition temperature of at least 35°C; • (c) a primer layer (14) disposed on the second major surface of the bead bonding layer wherein the primer layer comprises a copolymer of polyurea and polyurethane and wherein the primer layer is covalently attached to the bead bonding layer via urea linkages; and • (d) an elastomeric layer (16) disposed on the primer layer opposite the bead bonding layer, wherein the elastomeric layer comprises a polyurethane thermoplastic elastomer.

    POLYURETHANE SURFACING FILM
    9.
    发明申请

    公开(公告)号:WO2020129024A1

    公开(公告)日:2020-06-25

    申请号:PCT/IB2019/061223

    申请日:2019-12-20

    Abstract: Surfacing films and related processes are provided. These films include a first clear coat layer comprising a first crosslinked polyurethane that is the reaction product of an isocyanate; a polyol selected from the group consisting of: a caprolactone polyol, polycarbonate polyol, a polyester polyol, acrylic polyol, polyether polyol, polyolefin polyol, and mixtures thereof; and a hydroxy-functional silicone poly(meth)acrylate; a second clear coat layer comprising a crosslinked polymer that is essentially free of hydroxy-functional silicone poly(meth)acrylate; a bulk layer comprising a thermoplastic polyurethane; and an adhesive layer. The provided films overcome the problem of migration of solvents and other impurities into the polyurethane bulk layer because the clear coat layer is cured, and solvents removed, prior to the coating of the polyurethane bulk layer. Manufacturing of these films can provide substantially faster line speeds and reduced waste.

Patent Agency Ranking