Method for the manufacturing of a powdered material, the...

Details Method for the manufacturing of a powdered material, the... Method for the manufacturing of a powdered material, the...

2008-07-22

2008-07-22

Wood, Elizabeth D (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Dental

C106S692000

Reexamination Certificate

active

07402202

ABSTRACT:
Powdered material, the binder phase of which mainly consists of a cement-based system, which powdered material has the capacity following saturation with a liquid reacting with the binder phase to hydrate to a radiopaque and chemically bonded ceramic material. According to the invention, said binder phase mainly consists of CaO.Al2O3(ss) and/or 3CaO.Al2O3(ss). The material also contains one or more heavy atom types with a density over 5 g/cm3. The invention also relates to a method for manufacturing the powdered material and the chemically bonded ceramic material formed from the powdered material, in which said binder phase has a mol ratio Al2O3.3H2O (ss) to 3CaO.Al2O3.6H2O (ss) of a maximum of 2:1.

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Database WPI, Week 198306, Derwent Publications, Ltd., London, GB; AN 1983-13228K & JP 57209871 A (Yoida S), Dec. 23, 1982, abstract.
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English language abstract of JP 57-209871, Dec. 23, 1982.

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