Water-based primer composition for fluororesin coating
AssigneeDaikin Industries, Ltd.
InventorsNobuyuki Tomihashi, Koichiro Ogita, Hisato Sanemasa
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Abstract
an aqueous primer composition for a fluororesin coating comprising a fluororesin, polyethersulfone, and at least one resin selected from the group consisting of polyamideimide and polyimide, which are dispersed in water, wherein a weight ratio of polyethersulfone to polyamideimide and/or polyimide is from 85:15 to 65:35, and a weight ratio of the total amount of polyethersulfone and polyamideimide and/or polyimide to the fluororesin is from 15:85 to 35:65. This primer composition has good adhesion properties to substrates, the freedom of color tone of the coated film, and improved corrosion resistance and steam resistance, causes no environmental problems, and has good workability.
Claims6
An aqueous primer composition for a fluororesin coating comprising a fluororesin, polyethersulfone, and at least one resin selected from the group consisting of polyamideimide and polyimide, which are dispersed in water, wherein a weight ratio of polyethersulfone to polyamideimide and/or polyimide is from 85:15 to 65:35, and a weight ratio of the total amount of polyethersulfone and polyamideimide and/or polyimide to the fluororesin is from 15:85 to 35:65.
Dependencies are inferred from the claim text.