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    • 24. 发明授权
    • Urethane-based water-proofing/sound-proofing coating composition
    • 聚氨酯防水/防声涂料组合物
    • US4025683A
    • 1977-05-24
    • US605102
    • 1975-08-15
    • Arthur L. Meader, Jr.William L. Runyon, Jr.
    • Arthur L. Meader, Jr.William L. Runyon, Jr.
    • C04B41/48C04B41/52C04B41/63C04B41/70C09D175/04E01C7/35E01D19/08B05D1/36B32B11/04B32B27/40
    • C04B41/009C04B41/4884C04B41/52C04B41/63C04B41/70C09D175/04E01C7/358E01D19/083C04B2111/0075Y10T428/24967Y10T428/269Y10T428/31551Y10T428/31598
    • A water-proofing/sound-proofing coating composition comprises, in order, from a surface to be coated (A) a prime coat comprising (1) a paint binder, (2) a heat absorber, comprising a dark, preferably black, pigment, (3) a volatile solvent, and optionally (4) an inert fller, and (B) a membrane coat comprising (1) a polyurethane formed from (a) a mixture of high molecular weight polyols and low molecular weight chain stiffeners and (b) a polyisocyanate, (2) a nonvolatile extender and (3) a volatile solvent. The surfacing composition can also include an overlay of a wearing surface such as an asphalt concrete. A process is also provided for preparing a cast-in-place surfacing composition comprising (A) applying a primer to a surface to be coated, (B) allowing the prime coat to stand for a time sufficient to allow entrained gases to escape from the primed surface, and (C) applying to the surface of the prime coat a membrane-forming coat comprising (1) a mixture of a high molecular weight polyol and a low molecular weight chain stiffener, (2) a substantially inert nonvolatile extender, (3) a polyisocyanate, (4) a volatile solvent, and (5) a polyurethane-forming reaction catalyst.
    • 防水/隔音涂料组合物按顺序包含(A)一种初涂,其包含(1)涂料粘合剂,(2)吸热剂,其包含黑色,优选黑色颜料 ,(3)挥发性溶剂和任选的(4)惰性填料,和(B)膜涂层,其包含(1)由(a)高分子量多元醇和低分子量链加强物的混合物形成的聚氨酯和( b)多异氰酸酯,(2)非挥发性增量剂和(3)挥发性溶剂。 表面处理组合物还可以包括诸如沥青混凝土的磨损表面的覆盖层。 还提供了一种用于制备现浇表面处理组合物的方法,其包括(A)将底漆施加到待涂覆的表面上,(B)使得初涂层静置足以允许夹带的气体从 涂覆表面,和(C)将涂层的表面施加到膜形成涂层上,该涂膜包括(1)高分子量多元醇和低分子量链加强剂的混合物,(2)基本惰性的非挥发性增量剂, 3)多异氰酸酯,(4)挥发性溶剂,和(5)形成聚氨酯的反应催化剂。