Process for preparing structural components

Details Process for preparing structural components Process for preparing structural components

1981-11-12

1983-07-19

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

106 89, 264333, C04B 702

Patent

active

043943357

ABSTRACT:
This invention relates to a process for preparing structural components which comprises preparing a slurry containing a hydraulic binding agent, water, additives and an organo(poly)siloxane of the general formula ##EQU1## where at least 10 percent of the number of R radicals are the same or different alkyl radicals having at least 4 carbon atoms per radical and the other radicals when present are alkyl radicals having from 1 to 3 carbon atoms per radical and/or phenyl radicals, R' represents the same or different alkyl radicals having from 1 to 4 carbon atoms per radical, x is 0, 1, 2 or 3, with an average of from 0.9 to 1.8, y is 0, 1, 2 or 3, with an average of 0.01 to 2.0 and z is 0, 1, 2 or 3, with an average of from 0.00 to 0.5, with the proviso that the sum of x+y+z may not exceed 3.5, molding the slurry and thereafter exposing the molded slurry to aqueous steam.

REFERENCES:
patent: 3972969 (1976-08-01), Rio
patent: 4002713 (1977-01-01), Duncan
patent: 4043826 (1977-08-01), Hum
Kookootsedes, "Use of Silicones in Producing Moldable Precision Ceramics", Ceramic Bulletin, vol. 51, No. 11, 1972, pp. 860-863.

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