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    Adhesive
    81.
    发明专利
    Adhesive 失效
    胶粘剂

    公开(公告)号：JPH11279509A

    公开(公告)日：1999-10-12

    申请号：JP9857098

    申请日：1998-03-25

    Applicant: Aica Kogyo Co Ltd ,  アイカ工業株式会社

    Inventor： ISOBE SATORU ,  ASAI DAIJIRO

    IPC: C09J131/04 ,  C09J11/06 ,  C09J129/14

    Abstract: PROBLEM TO BE SOLVED: To remove the limitation of work life and improve the initial bond strength, water resistance and heat resistance by blending glyoxal with a vinyl acetate resin-based emulsion of a specific composition.
    SOLUTION: This adhesive has 0.05-10 pts.wt. of gloxyal based on 100 pts.wt. of the resin solid content of a vinyl acetate resin-based emulsion which contains an acetoacetylated polyvinyl alcohol (hereinafter referred to as AA-ed PVA). The acetoacetylated PVA preferably has 0.1-15 mol% of residual acetic acid groups, an average degree of polymerization of 500-2,600 and an acetoacetyl group content of 2-8 mol%. The amount of the acetoacetylated PVA used as a protective colloid is suitably 2-20 pts.wt. based on the resin solid content of the vinyl acetate resin-based emulsion. As the vinyl acetate resin-based emulsion, for example, polyvinyl acetate resin-based emulsions, ethylene-vinyl acetate copolymer emulsions, vinyl acetate-acrylate copolymer emulsions and the like can be used.
    COPYRIGHT: (C)1999,JPO

    Abstract translation: 要解决的问题：通过将乙二醛与具体组成的乙酸乙烯酯树脂基乳液混合来消除工作寿命的限制并提高初始粘合强度，耐水性和耐热性。 解决方案：该粘合剂具有0.05-10重量份 基于100 pts.wt. 含有乙酰乙酰化聚乙烯醇（以下称为AA-ed PVA）的乙酸乙烯酯树脂系乳液的树脂固体成分。 乙酰乙酰化PVA优选具有残留乙酸基团的0.1-15mol％，平均聚合度为500-2,600，乙酰乙酰基含量为2-8mol％。 用作保护胶体的乙酰乙酰化PVA的量适宜为2-20重量份 基于乙酸乙烯酯树脂基乳液的树脂固体含量。 作为乙酸乙烯酯树脂基乳液，可以使用例如聚乙酸乙烯酯树脂类乳液，乙烯 - 乙酸乙烯酯共聚物乳液，乙酸乙烯酯 - 丙烯酸酯共聚物乳液等。

    ADHESIVE COMPOSITION FOR METAL FOIL AND ADHESIVE-HAVING METAL FOIL USING THE SAME, METAL-CLAD LAMINATE
    83.
    发明专利
    ADHESIVE COMPOSITION FOR METAL FOIL AND ADHESIVE-HAVING METAL FOIL USING THE SAME, METAL-CLAD LAMINATE 失效

    公开(公告)号：JPH1171564A

    公开(公告)日：1999-03-16

    申请号：JP23341797

    申请日：1997-08-29

    Applicant: HITACHI CHEMICAL CO LTD

    Inventor： HORIUCHI TAKESHI ,  KUMAKURA YOSHITOSHI ,  NANAUMI KEN

    IPC: C08J3/24 ,  B32B15/08 ,  C09J129/14 ,  C09J161/28 ,  C09J163/00 ,  H05K3/38

    Abstract: PROBLEM TO BE SOLVED: To obtain an adhesive composition capable of giving laminates excellent in tracking resistance and heat resistance and used for printed circuit boards by adding an aromatic sulfonic acid as a curing accelerator to an adhesive composition comprising a polyvinyl acetal resin, a melamine resin and an epoxy resin. SOLUTION: This adhesive composition comprises 100 pts.wt. of a polyvinyl acetal resin, 40-100 pts.wt. of a melamine resin, 5-70 pts.wt. of an epoxy resin, and an aromatic sulfonic acid such as p-toluene sulfonic acid as a curing accelerator in an amount of 0.1-2 pts.wt. per 100 pts.wt. of the total amount of the polyvinyl acetal resin, the melamine resin and the epoxy resin. The composition is coated as a varnish on a metal foil and subsequently dried to give the metal foil having the adhesive.

    POLARIZING PLATE
    87.
    发明专利
    POLARIZING PLATE 失效

    公开(公告)号：JPH09258023A

    公开(公告)日：1997-10-03

    申请号：JP6073496

    申请日：1996-03-18

    Applicant: SUMITOMO CHEMICAL CO

    Inventor： MATSUMOTO KOJI ,  HAYASHI SHIGETOSHI ,  KURATA NOBUYUKI

    IPC: G02B5/30 ,  C09J129/04 ,  C09J129/14 ,  G02B1/08

    Abstract: PROBLEM TO BE SOLVED: To provide a polarizing plate having excellent adhesiveness between polarizing film and a protective film and wet heat resistance. SOLUTION: The adhesive layer of the polarizing plate formed by sticking the protective film on at least one surface of the polyvinyl alcohol (PVA) polarizing film via the PVA adhesive layer consists of a PVA adhesive contg. a water- soluble epoxy compd. The ratio of the water-soluble epoxy compd. and PVA resin in the adhesive is specified to (5 to 50)/100 (by the weight of the solid content), thereby, the polarizing plate having the excellent adhesiveness of the polarizing film and the protective film and the wet heat resistance is obtd.

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