Preparing powder primer of thermoset binder and PVdF-compatible

Details Preparing powder primer of thermoset binder and PVdF-compatible Preparing powder primer of thermoset binder and PVdF-compatible

1999-07-14

2000-03-14

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

428416, 523459, 525111, 525113, 525119, 525121, 525123, 525125, C08K 0322, C08L 6302, C08L 6702

Patent

active

060374128

ABSTRACT:
Powder compositions comprising about 5-15 wt % of PVdF-compatible thermoplastic resin, about 50-90 wt % of a thermosetting binder system, about 0-35 wt % of pigments and about 0-3 wt % of leveling agent are disclosed which are particularly suitable for use as primers with a later application of a pigmented PVdF-based top coating. Preferred compositions are based on an epoxy system containing about 8 wt % of PVdF or acrylic thermoplastic resin, 5-25 wt % of pigments and 0.7-1 wt % of leveling agent.

REFERENCES:
patent: 3770848 (1973-11-01), Labana et al.
patent: 3819560 (1974-06-01), Kehr
patent: 4179542 (1979-12-01), Christofas et al.
patent: 4770939 (1988-09-01), Sietsess et al.
patent: 4879345 (1989-11-01), Connelly et al.
Detroit Society for Paint Technology, "Powder Coating: Why-When-How," Journal of Paint Technology, vol. 44, No. 565, Feb., 1972, pp. 30-37.

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