Synthetic slate

Details Synthetic slate Synthetic slate

1976-12-21

1978-02-14

Smith, Edward J.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Plural, intermittent pressure applying

51298R, 264122, 264331, B29G 101

Patent

active

040738485

ABSTRACT:
A solid, slate-like product, a composition and method of producing the same comprising a substantially uniform mixture of at least five parts by weight of a finely divided taconite iron ore material containing at least about 1 percent magnetite therein and an amine-formaldehyde resin such as urea-formaldehyde or melamine-formaldehyde. The mixture, heated under pressure, forms a dense slate-like material.

REFERENCES:
patent: 2841565 (1958-07-01), Barnstein
patent: 3093464 (1963-06-01), Coes
patent: 3257491 (1966-06-01), Smits
patent: 3450808 (1969-06-01), Roberts

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