Process for preparing a pasty dental material which is an organo

Details Process for preparing a pasty dental material which is an organo Process for preparing a pasty dental material which is an organo

1992-05-19

1993-09-28

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523115, 523116, 523117, 523118, 524443, 525479, C08K 554, A61C 500

Patent

active

052487067

ABSTRACT:
The invention relates to a process for preparing a dental material filler in the form of a copolycondensate. An alkoxy silane having a formula of Si(OR.sup.3).sub.4 and a titanium compound are dissolved in a water-miscible solvent. Optionally, additional alkoxysilanes having the formulas R.sup.1 --Si(OR.sup.3).sub.3 and R.sup.2.sub.2 Si(OR.sup.3).sub.2 are also dissolved in the solvent. The reactants are hydrolyzed and condensed to form a reaction mixture from which a heterosiloxane is formed. The heterosiloxane is separated, optionally washed, dried and tempered. The heterosiloxane may then be ground to a desired size and/or formed into various dental materials, such as fillings, inlays, veneers, seals, crowns, bridges, dentures, artificial teeth and adhesives for dental materials. Alternatively, the reaction may take place without the use of a water miscible solvent, such that the precondensing takes place in water.

REFERENCES:
patent: 3926906 (1975-12-01), Lee et al.
patent: 4427799 (1984-01-01), Orlowski et al.
patent: 4504231 (1985-03-01), Koblitz et al.
patent: 4575545 (1986-03-01), Nakos et al.
patent: 4690986 (1987-09-01), Sasaki et al.
patent: 4717599 (1988-01-01), Merrill
patent: 4728709 (1988-03-01), Klemarczyk et al.
patent: 4826893 (1989-05-01), Yamazaki et al.
patent: 4853434 (1989-08-01), Block
patent: 5132337 (1992-07-01), Panster et al.
Janda, Ralf, "Der Stand der Entwicklung auf dem Gebiet der Zahnfeullungskunststoffe (I)," Die Quintessenz, Jun. 1988, pp. 1067-1073.
Janda, Ralf, "Der Stand der Entwicklung auf dem Gebiet der Zahnfuellungskunststoffe (II)," Die Quintessenz, Jul. 1988, pp. 1243-1253.
Janda, Ralf, "Der Stand der Entwicklung auf dem Gebiet der Zahnfuellungskunststoffe (III)," Die Quintessenz, Aug. 1988, pp. 1393-1399.
Chemical Abstracts, vol. 100, No. 53364M.

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