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    RESIN COMPOSITION, PELLET, VEIL, DAMPING MATERIAL, SOUND INSULATION MATERIAL, AND INTERMEDIATE FILM FOR LAMINATED GLASS
    1.
    发明申请
    RESIN COMPOSITION, PELLET, VEIL, DAMPING MATERIAL, SOUND INSULATION MATERIAL, AND INTERMEDIATE FILM FOR LAMINATED GLASS 审中-公开

    公开(公告)号：US20200024441A1

    公开(公告)日：2020-01-23

    申请号：US16336369

    申请日：2017-09-26

    Applicant: KURARAY CO., LTD.

    Inventor： Yasushi SENDA ,  Shinya OSHITA ,  Yoshiaki ASANUMA

    IPC: C08L53/02 ,  B32B17/10 ,  C08F297/04 ,  G10K11/162

    Abstract: Provided are a resin composition, a pellet, a veil, a vibration damping material, a sound insulator, and an intermediate film for laminated glass, each of which is much more excellent in damping properties. Specifically, the resin composition is a resin composition containing the following block copolymer or hydrogenation product thereof (X); and a tackifier resin (Y) having a glass transition temperature of −50 to 45° C., wherein when a glass transition temperature of a polymer block (B) of the block copolymer or hydrogenation product thereof (X) is designated as Tg(X), and a glass transition temperature of the tackifier resin (Y) is designated as Tg(Y), an absolute value of a difference between Tg(X) and Tg(Y) is 50° C. or lower, the block copolymer or hydrogenation product thereof (X) being a block copolymer or a hydrogenation product thereof having a polymer block (A) containing more than 70 mol % of a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 30 mol % or more of a structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene, and the content of the polymer block (A) in the block copolymer being 25% by mass or less.

    POLYVINYL ACETAL COMPOSITION
    4.
    发明申请
    POLYVINYL ACETAL COMPOSITION 审中-公开
    聚乙烯醇组合物

    公开(公告)号：US20160053102A1

    公开(公告)日：2016-02-25

    申请号：US14779220

    申请日：2014-03-13

    Applicant: KURARAY CO., LTD.

    Inventor： Yoshiaki ASANUMA ,  Koichiro ISOUE

    IPC: C08L29/14 ,  B32B17/10

    CPC classification number: C08L29/14 ,  B32B17/10605 ,  B32B17/10761 ,  C08K5/103 ,  C08L67/00 ,  C08L71/02 ,  C08L2205/025 ,  C08L2205/035

    Abstract: An object is to provide a polyvinyl acetal composition which includes polyvinyl acetals having different average amounts of remaining hydroxyl groups and from which a sheet having excellent transparency can be molded.A polyvinyl acetal composition comprising 3 to 100 parts by mass of polyvinyl acetal (B) with respect to 100 parts by mass of polyvinyl acetal (A), and 0.05 to 0.75 times by mass of compound (C) with respect to the total mass of polyvinyl acetal (A) and polyvinyl acetal (B). The polyvinyl acetal (A) has an average amount of remaining hydroxyl groups of X mol % (X is a positive number), the polyvinyl acetal (B) has an average amount of remaining hydroxyl groups of Y mol % (Y is a positive number), and |X−Y|≧3 is satisfied. The compound (C) is selected from a group consisting of a polyester containing a hydroxyl group, a polyalkylene oxide, and an ester compound containing a hydroxyl group, the ester compound containing a hydroxyl group being an ester compound of one molecule of an m-valent alcohol (m represents an integer of 1 to 3) and n molecules (n represents an integer of 1 to m) of a monovalent carboxylic acid.

    Abstract translation: 本发明的目的是提供一种聚乙烯醇缩醛组合物，其包含具有不同平均残留羟基的聚乙烯醇缩醛，并且可以从其中模塑出具有优异透明性的片材。 相对于100质量份聚乙烯醇缩醛（A）和相对于化合物（C）的总质量为0.05〜0.75质量份，含有3〜100质量份聚乙烯醇缩醛（B）的聚乙烯醇缩醛组合物 聚乙烯醇缩醛（A）和聚乙烯醇缩醛（B）。 聚乙烯醇缩醛（A）的平均残留羟基的摩尔数为X摩尔％（X为正数），聚乙烯醇缩醛（B）的平均残留羟基为Y摩尔％（Y为正数 ），| X-Y |≥3。 化合物（C）选自含有羟基的聚酯，聚环氧烷和含羟基的酯化合物，所述含羟基的酯化合物是一分子m- （m表示1〜3的整数），1价羧酸的n分子（n表示1〜m的整数）。

    INTERLAYER FILM FOR LAMINATED GLASS
    10.
    发明申请
    INTERLAYER FILM FOR LAMINATED GLASS 审中-公开

    公开(公告)号：US20200298535A1

    公开(公告)日：2020-09-24

    申请号：US16089055

    申请日：2017-03-24

    Applicant: KURARAY CO., LTD.

    Inventor： Yoshiaki ASANUMA ,  Takeshi KUSUDOU

    IPC: B32B17/10 ,  B32B27/30 ,  C08K5/12 ,  C08K5/01 ,  C08K5/053 ,  C08K5/03 ,  C08K5/05 ,  C08J5/18 ,  C08F116/38

    Abstract: Provided is an interlayer film for laminated glass which is excellent in sound insulation property and has improved sound insulation performance not only in a coincidence region but also in a mass-dominated region.The interlayer film for laminated glass includes a sound insulating layer which is formed from a composition (A) containing at least one resin (a1) selected from a thermoplastic resin and a thermosetting resin, wherein a tan δ obtained when a dynamic viscoelasticity of a sheet, which is obtained by molding the composition (A) to have a thickness of 0.8 mm, is measured at a frequency of 0.3 Hz in a tension mode has a maximal value at a temperature TA (° C.), TA (° C.) is in a range of −50 to 50° C., and the tan δ at TA (° C.) is 2.5 or more.

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