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    • 46. 发明授权
    • Thermoplastic adhesive
    • 热塑性粘合剂
    • US4384083A
    • 1983-05-17
    • US286050
    • 1981-07-22
    • Richard L. Baker
    • Richard L. Baker
    • C09J175/08C09J177/08C09J177/12B65C9/25
    • C09J177/08C09J175/08C09J177/12Y10T428/31551Y10T428/31562Y10T428/31565Y10T428/3158Y10T428/31587
    • A thermoplastic adhesive composition that is particularly suitable for use as a hot melt adhesive is disclosed that comprises at least about 10% by weight of a polyether-based thermoplastic polyurethane and another component selected from the group consisting of: (A) a polyamide formed by the condensation of a compound of the formulaYN NHwhere Z is selected from the group consisting of ##STR1## where R is selected from the group consisting of hydrogen and alkyl groups having from 1 to 6 carbon atoms and R.sub.1 is a divalent aliphatic hydrocarbon group having at least 1 carbon atom, Y is selected from the group consisting of hydrogen, R'NH.sub.2 and R'OH where R' is a divalent alkylene radical having from 1 to 6 carbon atoms, with an amide forming derivative of a polymeric fat acid; (b) a thermoplastic copolyester made from the polyesterification reaction between terephthalic acid, cyclohexanedimethanol, a diol in addition to cyclohexanedimethanol and a dibasic acid in addition to terephthalic acid; or (C) a polyester-polyamide formed by heating a mixture of about 50 to about 99% by weight of component (A) with about 1 to about 50% by weight of component (B) at a temperature above the melting point of components (A) and (B) for a sufficient period to effect ester interchange.
    • 公开了一种特别适用于热熔粘合剂的热塑性粘合剂组合物,其包含至少约10重量%的聚醚基热塑性聚氨酯和另一组分,该组分选自:(A)由 其中Z选自其中R选自氢和具有1至6个碳原子的烷基的基团,其中R 1为二价 具有至少1个碳原子的脂族烃基,Y选自氢,R'NH 2和R'OH,其中R'是具有1至6个碳原子的二价亚烷基,其中酰胺形成衍生物为 聚合脂肪酸; (b)由对苯二甲酸,环己烷二甲醇,除环己烷二甲醇以外的二醇和除对苯二甲酸以外的二元酸的聚酯化反应制成的热塑性共聚酯; 或(C)通过在高于组分的熔点的温度下加热约50至约99重量%的组分(A)与约1至约50重量%的组分(B)的混合物而形成的聚酯 - 聚酰胺 (A)和(B)足够的时间来进行酯交换。