Process for production of crystallized glass and process for pro

Details Process for production of crystallized glass and process for pro Process for production of crystallized glass and process for pro

1980-05-05

1981-07-21

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Marking

51298, 51307, 51308, 51309, 65 33, 106 397, 106 398, 106 43, 106 44, 106 47R, 106 52, 106 53, 106 54, 106 55, 106 56, 106 734, 106 735, 264 60, 264 62, 264 65, 264332, 4273762, C03C 322

Patent

active

042796547

ABSTRACT:
This invention relates to a process for producing crystallized glass having superior mechanical properties and thermal properties, which comprises (1) coating glass in the form of a powder or molded article with an organometallic polymer, said polymer being soluble in an organic solvent and having a skeleton comprising (a) titanoxane linkages --Ti--O-- or zirconoxane linkages --Zr--O-- or both and (b) siloxane linkages --Si--O-- in which most of the silicon atoms have as a side chain at least one organic group selected from alkyl and phenyl groups, and optionally (c) boroxane linkages --B--O-- or aluminoxane linkages --Al--O-- or both; and (2) firing the resulting polymer-coated glass in an oxidizing atmosphere to crystallize at least a part of the glass. This invention also pertains to a process for producing a ceramics-crystallized glass composite article using the aforesaid crystallized glass.

REFERENCES:
patent: 3681187 (1972-08-01), Bowen et al.
patent: 3775164 (1973-11-01), Smith et al.
patent: 3811918 (1974-05-01), Levene
patent: 3847583 (1974-11-01), Dislich et al.
patent: 3998617 (1976-12-01), Gliemeroth
patent: 4225354 (1980-09-01), Rao
Mukherjee, S. P. et al. "A Comparative Study of Gels and Oxide Mixtures as tarting Materials for the Nucleation and Crystallization of Silicate Glasses," J. of Mat. Sci. 11 (1976) pp. 341-355.
Yoldas, B. E. "Preparation of Glasses and Ceramics from Metal-Organic Compounds" J. Mat. Sci. 12 (1977) pp. 1203-1208.

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