C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
403/12
C09D 7/12 (2006.01) B05D 1/36 (2006.01)
Patent
CA 2209821
An improved protective coating is disclosed that hardens to form a lightweight but extremely durable finish for a variety of substrates. The preferred coating comprises a mixture of lightweight comminuted porous expanded polytetrafluoroethylene (PTFE) particles suspended within a base paint mixture. When applied to and cured on a surface, the expanded PTFE particles form an interlocking grid network within the paint which is lightweight, durable, chemical and UV light resistant, and has a low coefficient of friction. The composition of the present invention is particularly suited for applications where a durable but lightweight coating is sought, such as in the aircraft industry.
Revêtement protecteur amélioré qui durcit pour former une finition légère mais extrêmement durable pour des substrats divers. Le revêtement préféré comporte un mélange pulvérulent de particules de polytétrafluoroéthylène (PTFE) expansé, poreux et léger, en suspension dans un mélange de base de peinture. Quand elles sont appliquées et durcies sur une surface, lesdites particules de PTFE expansé forment dans la peinture un réseau enchevêtré qui est léger, durable, chimique et résistant aux ultraviolets et possède un faible coefficient de friction. Ladite composition convient particulièrement à des applications pour lesquelles on recherche un revêtement durable mais léger, telles que l'industrie aéronautique.
Chopko David A.
Dolan John W.
Singleton Charles E.
Gowling Lafleur Henderson Llp
W. L. Gore & Associates Inc.
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