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    INTERLAYER FILM FOR LAMINATED GLASS AND LAMINATED GLASS
    1.
    发明申请
    INTERLAYER FILM FOR LAMINATED GLASS AND LAMINATED GLASS 审中-公开

    公开(公告)号：US20180290437A1

    公开(公告)日：2018-10-11

    申请号：US15525533

    申请日：2015-11-10

    Applicant: KURARAY CO., LTD.

    Inventor： Takuya KOBAYASHI ,  Takeshi KUSUDOU ,  Taiga YUI ,  Koichiro ISOUE

    IPC: B32B17/10 ,  E06B3/67

    Abstract: An object of the present invention is to provide an interlayer film for laminated glass which has excellent sound insulating properties and which even when used for a long period of time in a high-temperature and high-humidity environment, is able to keep a haze good and is also able to suppress whitening from an edge side thereof.The present invention is concerned with an interlayer film for laminated glass including a sound insulating layer (layer A) and thermoplastic resin layers containing a thermoplastic resin (layers B), the sound insulating layer (layer A) being located between at least two of the thermoplastic resin layers (layers B), wherein with respect to a laminated glass obtained by interposing the interlayer film for laminated glass by two sheets of float glass and a laminated glass obtained by holding the laminated glass under conditions at 80° C. and at a relative humidity of 95% for 1,000 hours, when a haze of a central portion of the laminated glass in accordance with JIS K 7105 is measured, an increase of the haze of the laminated glass after holding relative to the haze of the laminated glass before holding is 2% or less, and a distance of whitening from an edge side of the laminated glass after holding is 4 mm or less.

    POLYVINYL ACETAL RESIN FILM, AND LAMINATE COMPRISING SAME
    2.
    发明申请
    POLYVINYL ACETAL RESIN FILM, AND LAMINATE COMPRISING SAME 有权

    公开(公告)号：US20210394494A1

    公开(公告)日：2021-12-23

    申请号：US17279316

    申请日：2019-09-25

    Applicant: KURARAY CO., LTD.

    Inventor： Yuhi SHIMAZUMI ,  Takeshi KUSUDOU ,  Koichiro ISOUE ,  Hirotaka YASUDA ,  Takuya KOBAYASHI

    IPC: B32B17/10 ,  C08F16/38 ,  C08J5/18

    Abstract: The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein the polyvinyl acetal resin film has a thickness of 10 to 350 μm, one surface has a 10-point average roughness Rz value of less than 2 μm and a friction angle of larger than 31° but 40° or smaller, the other surface has a 10-point average roughness Rz value of 2 μm to 7 μm and a friction angle of 20° to 31°, a viscosity of a toluene/ethanol (1:1, mass ratio) solution containing 10%-by-mass of a polyvinyl acetal resin contained in the polyvinyl acetal resin material, which is measured at 20° C. and 30 rpm using a Brookfield-type (B-type) viscometer, is 100 to 1,000 mPa·s, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.

    INTERLAYER FILM FOR LAMINATED GLASS AND LAMINATED GLASS
    3.
    发明申请
    INTERLAYER FILM FOR LAMINATED GLASS AND LAMINATED GLASS 审中-公开

    公开(公告)号：US20180290439A1

    公开(公告)日：2018-10-11

    申请号：US15525515

    申请日：2015-11-10

    Applicant: KURARAY CO., LTD.

    Inventor： Takeshi KUSUDOU ,  Takuya KOBAYASHI ,  Taiga YUI ,  Mitsunori ASADA ,  Yohei KAMATA ,  Koichiro ISOUE

    IPC: B32B17/10 ,  E06B3/67

    Abstract: The present invention provides an interlayer film for laminated glass which has excellent sound insulating properties even when the thickness is reduced, and also has a low degree of orientation and low shrinkability.The invention relates to an interlayer film for laminated glass which includes at least one layer A containing a thermoplastic elastomer, wherein the thermoplastic elastomer includes a hard segment block and a soft segment block, the layer A has a sea-island phase separated structure in which the hard segment block is included as an island component and the soft segment block is included as a sea component, and the degree of orientation (1) defined by (maximum intensity value−minimum intensity value)/(maximum intensity value+minimum intensity value) based on the maximum intensity value and the minimum intensity value in an arbitrary azimuth range of 180° including the azimuth at which the intensity reaches the maximum in the azimuthal intensity distribution of periodic scattering or coherent scattering by the hard segment block or the soft segment block obtained for the layer A by small-angle X-ray scattering measurement is 0.9 or less.

    LAMINATE AND LAMINATED GLASS
    5.
    发明申请
    LAMINATE AND LAMINATED GLASS 审中-公开

    公开(公告)号：US20180290436A1

    公开(公告)日：2018-10-11

    申请号：US15525508

    申请日：2015-11-10

    Applicant: KURARAY CO., LTD.

    Inventor： Taiga YUI ,  Koichiro ISOUE ,  Takuya KOBAYASHI ,  Takeshi KUSUDOU

    IPC: B32B17/10 ,  E06B3/67 ,  B60J1/00

    Abstract: A laminate with excellent sound insulating properties and bending strength and a laminated glass using the laminate are provided. The laminate contains a layer A and a plurality of layers B. The layer A includes a composition, which contains a resin having a peak at which a tan δ as measured by conducting a complex shear viscosity test under a condition at a frequency of 1 Hz in accordance with JIS K 7244-10 is maximum at −40 to 30° C. The layer A is laminated between at least two of the layers B, in which a shear storage modulus at a temperature of 25° C. as measured by conducting a complex shear viscosity test under a condition at a frequency of 1 Hz in accordance with JIS K 7244-10 is 1.30 MPa or more.

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