公开(公告)号：US20040247785A1

公开(公告)日：2004-12-09

申请号：US10864650

申请日：2004-06-08

申请人： E. Wood Limited

发明人： Ian Robinson

IPC分类号： B05D007/22

CPC分类号： C08G18/798 ,  C08G18/482 ,  C08G18/5024 ,  C08G18/5027 ,  C08G18/6651 ,  C08G18/6685 ,  C08G18/792 ,  C09D175/12

摘要： A two part coating system comprises a first part comprising one or more aliphatic polyisocyanates, and a second part comprising one or more aromatic polyamines. In one group of embodiments, the second part comprises one or more aromatic polyamines, blended with one or more polyhydric alcohol compounds. In another group of embodiments, the polyhydric alcohol compounds are dispensed with and the required properties are achieved by selection of the type of polyisocyanate compound used and by close control of the proportions thereof. The coating system is suitable for application by spraying using equipment in which the two parts are first combined at the point of spraying, and may be applied to the internal surfaces of below-ground pipeline infrastructures, for example by means of a centrifugal spinning head assembly. In particular, the system may be used for the renovation of existing drinking water pipelines.

摘要翻译： 两部分涂料体系包括包含一种或多种脂族多异氰酸酯的第一部分和包含一种或多种芳族多胺的第二部分。 在一组实施方案中，第二部分包含与一种或多种多元醇化合物共混的一种或多种芳族多胺。 在另一组实施方案中，省去了多元醇化合物，并且通过选择所使用的多异氰酸酯化合物的类型和通过其比例的密切控制来实现所需的性能。 该涂层系统适用于使用其中两个部件在喷涂时首先组合的设备的喷涂应用，并且可以施加到地下管线基础设施的内表面上，例如通过离心旋转头组件 。 特别地，该系统可用于改造现有的饮用水管道。

公开(公告)号：US20040258837A1

公开(公告)日：2004-12-23

申请号：US10864651

申请日：2004-06-08

申请人： E. Wood Limited

发明人： Ian Robinson

IPC分类号： B05D007/22

CPC分类号： C08G18/792 ,  B05D1/02 ,  B05D7/14 ,  B05D7/222 ,  C08G18/6614 ,  C08G18/798 ,  C09D175/04 ,  F16L55/1645

摘要： A method of renovating an existing pipeline comprises spray-coating the interior of the pipeline using a two part coating system of which the two parts are mixed at the time of application. One part of the system comprises a polyisocyanate whilst the second part comprises one or more oligomeric polyamines, optionally further blended with a secondary aliphatic polyamine, or the second part comprises one or more aromatic polyamines blended with one or more polyols. The mixture forms a coating on the interior surface of the pipeline and forms, at a high cure rate, a monolithic flexible lining which exhibits high strength and a high level of adhesion to the pipe wall.

摘要翻译： 对现有管道进行改造的方法包括使用两部分涂布系统在施用时将两部分混合在一起喷涂管道内部。 系统的一部分包含多异氰酸酯，而第二部分包含一种或多种低聚多胺，任选地与仲脂族多胺共混，或者第二部分包含一种或多种与一种或多种多元醇共混的芳族多胺。 混合物在管道的内表面上形成涂层，并以高固化速率形成整体式柔性衬里，其显示出高强度和对管壁的高水平粘合性。