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    • 5. 发明授权
    • White-opalescent adhesives for the preparation of bonded filters
    • 用于制备粘合过滤器的白色乳液粘合剂
    • US5976371A
    • 1999-11-02
    • US987230
    • 1997-12-09
    • Albert M. GiorginiJames A. Hagquist
    • Albert M. GiorginiJames A. Hagquist
    • C08G18/48C08G18/10C08G18/66C09J175/04C09J175/08B01D63/00
    • C09J175/08C08G18/10Y10S264/48
    • The present invention discloses two-part isocyanate-based adhesive compositions, free of inorganic pigments and fillers, which cure to form polyurethane-based adhesives having an opaque-white appearance greater than about L* 80 and a shore A hardness greater than about 50. Such materials are particularly useful for the preparation of bonded filter. The invention further describes a method for the preparation of bonded filters using these compositions and the bonded filters thereof. Additionally, these compositions can also be used as two part general household adhesives and/or caulkings wherein the two liquid parts are metered together just prior to application using a dispensing apparatus including, but not limited to, glue guns having two containers (e.g., tubes); one tube, for example, containing polyol and diol components and the second containing polyisocyanate.
    • 本发明公开了两种不含无机颜料和填料的异氰酸酯类粘合剂组合物,其固化形成具有大于约L * 80的不透明白色外观并且肖氏A硬度大于约50的聚氨酯类粘合剂。 这种材料对于制备粘合过滤器特别有用。 本发明还描述了使用这些组合物及其粘合过滤器制备粘合过滤器的方法。 另外,这些组合物也可以用作两部分通用家用粘合剂和/或填缝剂,其中两个液体部件在使用分配装置之前就在使用之前计量在一起,包括但不限于具有两个容器的胶枪(例如,管 ); 一个管,例如含有多元醇和二醇组分,第二个含有多异氰酸酯。
    • 6. 发明授权
    • Foamable composition exhibiting instant thixotropic gelling
    • 具有瞬时触变胶凝的可发泡组合物
    • US06455605B1
    • 2002-09-24
    • US09841382
    • 2001-04-24
    • Albert M. GiorginiJames A. Hagquist
    • Albert M. GiorginiJames A. Hagquist
    • C08G1832
    • C08G18/36C08G2101/005Y10S521/902
    • The invention relates to a foamable composition comprising at least two parts. The first part comprises a polyol, a thixotropic gelling agent, a blowing agent, a urethane reaction catalyst and a isocyanurate reaction catalyst. The second part comprises at least one isocyanate. A foam mass can be prepared by combining the first part polyol component with the second part isocyanate component. The composition is foamable under water and exhibits, upon foaming under water, substantially the same wet foam density and dry foam density. The invention also relates to a method of repairing or reinforcing structural members having defects such as spike holes left after spike removal from railroad ties during road bed maintenance or repair by means of the foamable composition.
    • 本发明涉及包含至少两个部分的可发泡组合物。 第一部分包括多元醇,触变胶凝剂,发泡剂,氨基甲酸酯反应催化剂和异氰脲酸酯反应催化剂。 第二部分包含至少一种异氰酸酯。 可以通过将第一部分多元醇组分与第二部分异氰酸酯组分组合来制备泡沫体。 组合物在水下可发泡,并且在水下发泡时表现出基本相同的湿泡沫密度和干泡沫密度。 本发明还涉及一种修复或加强具有缺陷的结构构件的方法,例如在通过可发泡组合物的道路床维护或修复过程中从铁路连接件上取出尖钉之后留下的钉孔。