Alumina-containing calcium silicate and process for producing sa

Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing

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C04B 702

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active

042958938

ABSTRACT:
Alumina-containing calcium silicate being in the form of secondary particles, shaped bodies and a process for preparing the same, said secondary particles being composed of alumina-containing calcium silicate crystals having an index of crystallite antigrowth of at least 8 and interlocked with one another in the form of a globular shell, the particles being about 5 to about 70 .mu.m in diameter, up to about 0.13 g/cm.sup.3 in apparent density and at least 10 g per particle in initial breaking load, and said shaped bodies being composed of the secondary particles.

REFERENCES:
patent: 4162924 (1979-07-01), Kubo et al.
patent: 4193958 (1980-03-01), Uchida et al.

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