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    • 1. 发明授权
    • Process for producing corrosion- and creep resistant coatings
    • 生产耐腐蚀和抗蠕变涂层的工艺
    • US6020034A
    • 2000-02-01
    • US970513
    • 1997-11-14
    • Rashi AkkiBasil V. GregorovichGeorge K. KodokianGeorge W. Prejean
    • Rashi AkkiBasil V. GregorovichGeorge K. KodokianGeorge W. Prejean
    • C09D201/02C09D5/03C09D5/08C09D5/46C09D123/08B05D1/04B05D1/22
    • C09D5/084C09D123/08
    • This invention concerns a process for imparting corrosion and creep resistance to a coating prepared from a particulate polymer composition and applied from a fluidized bed or by electrostatic spraying over metal substrates. The process of the present invention provides for maintaining the content of acid functionality of an acid-functionalized semicrystalline or acid-functionalized amorphous particulate polymer of the particulate polymer composition within a desired range. The acid functionality on the particulate polymer can be maintained, by crosslinking and/or neutralizing, within a desired range of the acid content which results in imparting corrosion and creep resistance to the coating applied over the metal substrates. Neutralizing the acid functionality of the polymer component results in hardening the coatings resulting therefrom. The process further provides for adding anticorrosive pigments to the composition for further improving corrosion resistance of the resultant coatings.
    • 本发明涉及一种赋予由颗粒聚合物组合物制备的涂层和从流化床施加或通过静电喷涂在金属基底上的涂层的腐蚀和抗蠕变性的方法。 本发明的方法提供将颗粒状聚合物组合物的酸官能化半结晶或酸官能化无定形颗粒聚合物的酸官能度含量保持在所需范围内。 粒状聚合物上的酸官能度可以通过交联和/或中和在所需的酸含量范围内保持,这导致对施加在金属基底上的涂层赋予腐蚀和抗蠕变性。 中和聚合物组分的酸官能团导致硬化由此产生的涂层。 该方法进一步提供了将抗腐蚀颜料添加到组合物中,以进一步提高所得涂层的耐腐蚀性。