Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1996-12-20
1999-04-20
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106403, C09C 162
Patent
active
058955240
ABSTRACT:
Thin film metal particulates are removed from FEP sheetstock cheaply and quickly by immersing the coated FEP first in a base and then in an acid. Occasionally, ultrasonic vibration of the FEP may also be required. The particulates are useful as paint pigments. The FEP is reusable.
REFERENCES:
patent: 5076849 (1991-12-01), Vapaaoksa et al.
Bell Mark L.
Hammar John C.
Hertzog Scott L.
The Boeing Company
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