Mineral polymers and methods of making them

Details Mineral polymers and methods of making them Mineral polymers and methods of making them

1980-08-29

1982-09-14

Meros, Edward J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 84, 1062862, 1062865, 264319, 264333, 423328, 423329, 501153, C01B 3326, C04B 3516

Patent

active

043493866

ABSTRACT:
New mineral polymers called polysialates have the empiral formula M.sub.n [--(Si--O.sub.2 --).sub.z --Al--O.sub.2 --].sub.n,wH.sub.2 O where z is 1, 2 or 3, M is sodium, or sodium plus potassium, n is the degree of polycondensation, and w has a value up to about 7. The method for making these polymers includes heating an aqueous alkali silico-aluminate mixture having an oxide-mole ratio within certain specific ranges for a time sufficient to form the polymer.

REFERENCES:
patent: 3030181 (1962-04-01), Milton
patent: 3054657 (1962-09-01), Breck
patent: 3248170 (1966-04-01), Kuetinskas
patent: 3374058 (1968-03-01), McDaniel et al.
patent: 3594121 (1971-07-01), Weber
Barrer et al. "J. Chemical Society", 1959, pp. 195-208, 1956, pp. 2882-2891.
Barrer "Trans. Brit. Ceramic Soc." 56, 1957, pp. 155-173.

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