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    • 2. 发明申请
    • HEAT-RESISTANT STRUCTURAL WOOD ADHESIVE COMPOSITIONS INVOLVING pMDI, POLYOL AND AROMATIC POLYOLS
    • 涉及pMDI,多元醇和芳香族多元醇的耐热结构木粘合剂组合物
    • WO2011113137A1
    • 2011-09-22
    • PCT/CA2011/000265
    • 2011-03-10
    • FPINNOVATIONSJU, JinlanFENG, MartinWANG, Xiang-Ming
    • JU, JinlanFENG, MartinWANG, Xiang-Ming
    • C09J175/04C09K21/14
    • C08G18/6674C08G18/12C08G18/3215C08G18/3878C09J175/04C08G18/307
    • This invention describes an adhesive composition that forms the basis of a heat-resistant, fire resistant, and water resistant polyurethane adhesive suitable for applications in the manufacture of wood products, and the method of making the adhesive. The wood finger- jointed studs produced using an adhesive derived from this invention can meet or exceed the fire rating of a period of 60 minutes according to ASTM E 119 and ASTM D 7374. The heat resistance of the adhesive is a result of incorporating thermally stable aromatic polyol molecules into the polymeric structures of the wood adhesive system, which is composed of the reaction products of a poly(methylene diphenyl diisocyanate), at least one of a polyether polyol and a polyester polyol; and the aromatic polyol that is a hydroxyl phenol in a preferred embodiment. Furthermore, this novel wood adhesive system possesses high water-resistance, making it suitable for the manufacture of highly durable engineered wood products. It is fast moisture-curable at ambient temperatures. It is also formaldehyde-free.
    • 本发明描述了一种粘合剂组合物,其形成了适用于制造木制品的耐热,耐火和防水的聚氨酯粘合剂的基础,以及制造该粘合剂的方法。 根据ASTM E 119和ASTM D 7374,使用本发明衍生的粘合剂生产的木指接头螺柱可达到或超过60分钟的防火等级。粘合剂的耐热性是结合热稳定性 芳族多元醇分子进入木材粘合剂体系的聚合物结构,其由聚(亚甲基二苯基二异氰酸酯),聚醚多元醇和聚酯多元醇中的至少一种的反应产物组成; 和作为羟基苯酚的芳香族多元醇。 此外,这种新型木材粘合剂系统具有高耐水性,使其适用于制造高度耐用的工程木制品。 它在环境温度下可快速湿润固化。 它也是无甲醛的。