Water setting ion-polymer cements

Details Water setting ion-polymer cements Water setting ion-polymer cements

1979-11-06

1981-06-02

McCarthy, Helen M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 35, 106 47R, 106 52, 106 54, 26099811, 433228, C08K 340

Patent

active

042710570

ABSTRACT:
In a water soluble glass composition for effecting cross-linking of a polycarboxylic acid cement, typically polyacrylic acid, the glass is treated with phosphorus pentoxide or a phosphate containing material. This inhibits the initial setting stage of the cement and thus prolongs the period within which the cement can be worked. The glass may be of the zinc oxide/boric oxide/alumina type or of the fluoroaluminoborosilicate type.

REFERENCES:
patent: 3814717 (1974-06-01), Wilson et al.
patent: 3962267 (1976-06-01), Suzuki et al.
patent: 4123416 (1978-10-01), Potter et al.
patent: 4143018 (1979-03-01), Crisp et al.
patent: 4166744 (1979-09-01), Smith
patent: 4174334 (1979-11-01), Bertenshaw et al.
Hirayama, C., J. Am. Cer. Soc. 44, pp. 602-606 (1961).

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