Method for making deaggregated phosphors

Details Method for making deaggregated phosphors Method for making deaggregated phosphors

1986-09-15

1988-02-09

Lusignan, Michael R.

Coating processes

Electrical product produced

Welding electrode

427218, B05D 312, B05D 700

Patent

active

047241616

ABSTRACT:
Phosphors are coated and deaggregated by treatment with ultrasonic energy during the coating step. The phosphor aqueous dispersion is continuously passed through an ultrasonic chamber at a rate of flow so as to prevent aggregated phosphor particles from settling out and avoiding deaggregation.

REFERENCES:
patent: 2292555 (1942-08-01), Wesch
patent: 3165269 (1965-01-01), Blackburn et al.
patent: 3720306 (1973-03-01), Hedler
patent: 3756400 (1973-09-01), Kammori et al.
patent: 4287257 (1981-09-01), Ohmatoi et al.

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