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    • 5. 发明授权
    • Composition, adhesive and aqueous emulsion
    • 组合物,粘合剂和水性乳液
    • US5308910A
    • 1994-05-03
    • US903449
    • 1992-06-24
    • Ken YukiMasato NakamaeHitoshi MaruyamaTatsuaki Hattori
    • Ken YukiMasato NakamaeHitoshi MaruyamaTatsuaki Hattori
    • C08G18/62C08G18/63C09J175/00C08L29/04
    • C08G18/636C08G18/6229C08G18/633C09J175/00C08G2170/80
    • There is disclosed a composition which comprises an aqueous emulsion selected from (A-1) aqueous emulsion comprising a dispersoid which comprises a vinyl ester polymer (1) and a copolymer a (meth)acrylic ester and a primary hydroxyl group-containing ethylenically unsaturated monomer (2), the polymer (1) being present principally in the central part of the dispersoid, the copolymer (2) having a glass transition temperature of lower than 50.degree. C. an being present principally in the peripheral part thereof; and a dispersant comprising a vinyl alcohol polymer and (A-2) aqueous emulsion comprising a dispersoid which comprises a copolymer of a hydrophobic unsaturated monomer such as (meth)acrylic ester and a primary hydroxyl group-containing ethylenically unsaturated monomer; and a dispersant comprising a vinyl alcohol polymer having a mercapto group at an end thereof and a (B) polyvalent isocyanate compound. Disclosed also are an adhesive comprising the aforementioned composition and a wooden product which is joined by the use of the adhesive. The above-disclosed adhesive is excellent in initial adhesivity, adhesive strength, water resistance and so forth.
    • 公开了一种组合物,其包含选自(A-1)水性乳液的水乳液,其包含分散质,其包含乙烯基酯聚合物(1)和共聚物(甲基)丙烯酸酯和含伯羟基的烯属不饱和单体 (2)中,聚合物(1)主要存在于分散质的中心部分,共聚物(2)的玻璃化转变温度低于50℃,主要在其周边部分存在; 以及包含乙烯醇聚合物和(A-2)水性乳液的分散剂,其包含分散质,其包含疏水性不饱和单体如(甲基)丙烯酸酯和含伯羟基的烯属不饱和单体的共聚物; 和包含末端具有巯基的乙烯醇聚合物和(B)多价异氰酸酯化合物的分散剂。 还公开了包含上述组合物的粘合剂和通过使用粘合剂连接的木制品。 上述粘合剂的初始粘合性,粘合强度,耐水性等优异。
    • 9. 发明授权
    • Process for producing molded articles
    • 制造模制品的方法
    • US5164431A
    • 1992-11-17
    • US623679
    • 1990-12-06
    • Akio MizobeKenji SaimenSotaro ItadaniKen Yuki
    • Akio MizobeKenji SaimenSotaro ItadaniKen Yuki
    • C04B24/26C04B28/02
    • C04B28/02C04B24/2623C04B2103/44C04B2111/50Y02W30/97
    • Provided is a process for producing molded articles having excellent flexural strength, flexibility and dimensional stability, which comprises autoclave-curing at not lower than 100.degree. C. an aqueous composition comprising a hydraulic material (A) and a polyvinyl alcohol (B) powder, said polyvinyl alcohol (B) powder being contained in an amount of 0.1 to 20% by weight based on the weight of said hydraulic material (A).Also provided are molded articles comprising a hydraulic material (A) and a polyvinyl alcohol (B), said polyvinyl alcohol (B) being contained in an amount of 0.1 to 20% by weight based on the weight of said hydraulic material (A), said molded article having a structure comprising said polyvinyl alcohol (B) having once dissolved and then solidified being dispersed therein in the form of islands. These molded articles have excellent flexural strength, flexibility and dimensional stability.
    • 提供一种制造具有优异的弯曲强度,柔软性和尺寸稳定性的成型体的方法,其包括在不低于100℃的高压釜固化下,包含水硬性材料(A)和聚乙烯醇(B)粉末的水性组合物, 所述聚乙烯醇(B)粉末的含量相对于所述液压材料(A)的重量为0.1〜20重量%。 还提供了包含液压材料(A)和聚乙烯醇(B)的模塑制品,所述聚乙烯醇(B)的含量为所述水硬性材料(A)的重量的0.1-20重量% 所述模制品具有包含一旦溶解并随后固化的所述聚乙烯醇(B)以岛状分散在其中的结构。 这些模制品具有优异的弯曲强度,柔韧性和尺寸稳定性。