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    • 10. 发明授权
    • Aqueous polyurethane resin dispersion and aqueous adhesive
    • 水性聚氨酯树脂分散体和水性粘合剂
    • US07294670B2
    • 2007-11-13
    • US10247620
    • 2002-09-20
    • Kazuo KubaMitsuru Kitada
    • Kazuo KubaMitsuru Kitada
    • C08G18/08C08G18/12C08G18/46C08G18/66
    • C08G18/6659C08G18/0823C08G18/0828C08G18/12C08G18/4676C08G2170/80Y10T428/31551C08G18/3246
    • An aqueous urethane resin dispersion for bonding can be used in wet lamination and dry lamination and can be reactivated easily at a low temperature of about 50 to 70° C. after drying, and is also superior in coatability, adhesive strength, and heat resistance. The aqueous dispersion of a polyurethane resin is superior in contact adhesiveness immediately after lamination and also has good permeability and good coatability not only on bases having smooth surfaces such as plastics and metals, but also on porous bases such as fibers, papers, and buffed leathers; an aqueous adhesive using the aqueous dispersion; and an article to which it is applied. The aqueous polyurethane resin dispersion has at least one of a sulfonate group and a carboxylate group, wherein an average particle diameter of the polyurethane resin is 0.05 to 0.30 μm and a surface tension of the aqueous dispersion (A) is 40 mN/m or less.
    • 用于接合的水性聚氨酯树脂分散体可用于湿法层压和干层压,并且可以在干燥后在约50至70℃的低温下容易地再活化,并且涂布性,粘合强度和耐热性也优异。 聚氨酯树脂的水性分散体在层压后立即具有优异的接触粘合性,并且不仅在具有光滑表面的基材如塑料和金属上,而且在多孔基材如纤维,纸和抛光皮革上也具有良好的渗透性和良好的涂布性 ; 使用该水性分散体的水性粘合剂; 以及其应用的文章。 所述水性聚氨酯树脂分散体具有磺酸酯基和羧酸酯基中的至少一种,其中,所述聚氨酯树脂的平均粒径为0.05〜0.30μm,所述水性分散体(A)的表面张力为40mN / m以下 。