Release coating for glass manufacture

Details Release coating for glass manufacture Release coating for glass manufacture

1976-03-26

1977-08-02

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

65 24, 65 26, 106 74, 106 84, 252 29, 252 30, 427133, B28B 736

Patent

active

040393372

ABSTRACT:
A composition and method of preparation are herein described for molten release and parting compositions adaptable for use in glass-forming operations. The novel composition comprises an aqueous dispersion of a mixture of a solid lubricant, a water-soluble silicate binder, a setting agent, and a water-soluble phosphate. A preferred composition comprises a mixture of flake graphite, boron nitride, sodium silicate, zinc oxide and potassium phosphate tribasic.

REFERENCES:
patent: 3051586 (1962-08-01), Heath et al.
patent: 3052629 (1962-09-01), Morrow et al.
patent: 3915870 (1975-10-01), Brown

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