Hot melt adhesive containing hydroxyl-functional ethylene-vinyl acetate
and blocked polyisocyanate
    2.
    发明授权
    Hot melt adhesive containing hydroxyl-functional ethylene-vinyl acetate and blocked polyisocyanate 失效
    含有羟基官能的乙烯 - 乙酸乙烯酯和封端的多异氰酸酯的热熔胶

    公开(公告)号:US4908408A

    公开(公告)日:1990-03-13

    申请号:US202103

    申请日:1988-06-03

    摘要: A composition for a cross-linkable hot melt adhesive is provided and is formed by an ethylene-vinyl acetate copolymer containing primary hydroxyl functions and a blocked polyisocyanate. This composition when associated with a tackifying resin, which can also serve as blocking agent of the polyisocyanate, is a cross-linkable hot melt adhesive. The adhesive is used at a temperature at least equal to splitting temperature of the isocyanate functions of the polyisocyanate. The temperature at which such adhesives retains adherence can reach about 200.degree.-220.degree. C.

    摘要翻译: 提供了一种用于可交联热熔粘合剂的组合物,并且由含有伯羟基官能团的乙烯 - 乙酸乙烯酯共聚物和封端多异氰酸酯形成。 当与可以用作多异氰酸酯的封闭剂的增粘树脂相关联时,该组合物是可交联的热熔粘合剂。 粘合剂的使用温度至少等于多异氰酸酯的异氰酸酯官能度的分解温度。 这种粘合剂保持粘附的温度可以达到约200℃-220℃

    Moisture-curable hot-melt adhesive compositions
    3.
    发明授权
    Moisture-curable hot-melt adhesive compositions 失效
    水分可熔热胶粘剂组合物

    公开(公告)号:US5189096A

    公开(公告)日:1993-02-23

    申请号:US467260

    申请日:1990-01-19

    摘要: Novel crosslinkable hot-melt adhesive compositions, curable by atmospheric moisture, include (i) the prepolymerizate of an hydroxylated ethylene/vinyl acetate copolymer with a stoichiometric excess of a polyisocyanate, e.g., a diisocyanate, such prepolymerizate containing an effective crosslinkable amount of free isocyanate functional groups, and, optionally, (ii) an adhesive tackifying resin.

    摘要翻译: 可通过大气水分固化的新型可交联热熔粘合剂组合物包括(i)羟基化乙烯/乙酸乙烯酯共聚物与化学计量过量的多异氰酸酯(例如二异氰酸酯)的预聚合物,其含有有效交联量的游离异氰酸酯 官能团,和任选地,(ⅱ)粘合增粘树脂。