Glass manufacturing composition

Details Glass manufacturing composition Glass manufacturing composition

1975-02-14

1976-08-31

Weinblatt, Mayer

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

252156, 427133, 427131, 427318, 65 24, 65 26, B28B 738

Patent

active

039778851

ABSTRACT:
Periodic application of a composition comprising monoaluminum dihydrogen phosphate, Al(H.sub.2 PO.sub.4).sub.3, as a binder and an anti-wear agent such as finely divided hard metals, solid lubricants or the like to clean surfaces of molds used in manufacturing glass parts facilitates quick release of molded glass parts from the mold, provides a protective coating for the mold surfaces, and eliminates the necessity for frequent swabbing of the mold with oily compositions.

REFERENCES:
patent: 1981403 (1934-11-01), Weitzenkorn
patent: 2995453 (1961-08-01), Noble et al.
patent: 3396935 (1968-08-01), Snyder
patent: 3637412 (1972-01-01), Felice et al.
patent: 3645767 (1972-02-01), Taylor
patent: 3702774 (1972-11-01), Birchall et al.
patent: 3783013 (1974-01-01), Seeman
Kingery, Phosphate Bonding in Refractories in Chem. Abs., (1952), vol. 46:4757d.
Comefono et al, Phosphate-bonded Talc: a Superior Block-talc Substitute vol. 48:7269b.

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