Kulzer & Co. Gmbh

Heraeus Kulzer Gmbh

Kulzer Gmbh

Roland Gobel

Hans-Jurgen Tiller

Steffen Oppawsky

Rudolf Musil

Albert Schmidt

Brigitte Magnus

Dieter Schodel

Rolf Janda

Adelheid Garschke

Adhesive, waterproof and hydrolysis-resistant bonding layer for metal,

Firmly adhering, durable dental metal/plastic composite structures that are stable in the presence of moisture can be made from dental alloys and plastics, if an adhesion promoting layer having a concentration gradient and comprising silicon dioxide and metal oxide, particularly chromium oxide, is disposed between them.

Primer composition for dental metal/plastic composite structure

To improve coating of articles such as dental prostheses by flame hydrolysis, a zone of turbulence is generated at the tip portion of an elongated flame cone by a deflection surface (5, 5') located--with respect to flame projection--beyond holders for the articles and positioned to be impinged by the tip of the flame to be deflected and reflected thereby from the conical form, to cause the flame to swirl about the articles.

Flame hydrolysis coating apparatus particularly for dental prostheses

To apply a silicon oxide adhesion-promoting layer to a metal prosthesis part or frame, for subsequent application of a dental plastic thereon, the prosthesis is subjected to flame hydrolysis derived from a flame hydrolysis burner (11) which has a silicon compound in vapor or gas form applied thereto in addition to a carbon-containing combustion gas, such as propane and air, the prosthesis part or frame being passed through the flame from the burner in the forward third thereof, the burner flame cone having, in operation, a length (L) of between 15 to 20 cm, a gas stream speed of about 1 m/sec., and wherein the length (L) of the cone exceeds the spacing distance (D) of the farthest part of the prosthesis from the mouth of the burner by only up to about 25%. For fine adjustment of the cone, a tinting substance can be added to the flame.

Apparatus and method for applying a silicon oxide-containing

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Jena, Germany

Roland Gobel