C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
117/192, 400/511
C09D 177/00 (2006.01)
Patent
CA 1121933
ABSTRACT OF THE DISCLOSURE A nylon powder composition having improved adhesion when applied as a coating film to a substrate by fusion coating processes, comprises a major weight proportion of a nylon, preferably type 11 or type 12 nylon, melt-mixed with minor amounts of a reactive epoxy resin and a polyvinyl acetal resin. Preferred polyvinyl acetal resins are polyvinyl butyral or polyvinyl formal, these additives being present in amount 1 to 10 parts by weight. No curing ageng for the epoxy resin is present in the formulation; the epoxy resin is selected from those having an epoxy equivalent weight of from about 200 to about 2,000. The melt-mixed formulation is preferably extruded and chopped to form pellets, and ~he pellets are cryogenically ground to appropriate mesh size for fluidized bed application.
337153
Filipkowski R.j.
Polymer Corporation (the)
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