Kulzer & Co. Gmbh

Tetra Laval Holdings & Finance S.a.

Guardian Industries Corporation

Heraeus Kulzer Gmbh

Kulzer Gmbh

Hans-Jurgen Tiller

Steffen Oppawsky

Roland Gobel

Albert Schmidt

Dieter Schodel

Rudolf Musil

Brigitte Magnus

Uwe Kriltz

Pierre Fayet

Ralf Janda

Thomas Richter

Torsten Olofsson

Bernd Gruenler

Roland Weidl

Gerald Janicke

Hendryk Richert

Armin Schmidt

Adelheid Garschke

Rolf Janda

Friedrich-Wilhelm Breitbarth

Michael Grosch

A web of a polymer film () is coated with an oxide layer, in particular with an SiObarrier layer, by transporting the web with the aid of a rotatable drum () through a plurality of flame bands, which are directed in a radial direction from above against the circumferential surface of the drum, which extend at a distance from each other across the width of the web being supported and transported on this circumferential surface, and which are fed with a gas mixture including a combustible gas, an oxidant, and a silicon containing compound. Therein the circumferential surface of the rotatable drum is cooled to a predetermined temperature and the web is transported through the area of the tip of the inner flame region. Polymer films with barrier layers produced in the named way have at small layer thicknesses of less than 10 nm very good barrier properties.

Method and device for coating a polymer film with an oxide layer

A sputtering target comprising an outer target tube, an inner support tube supporting a magnet carrier extending along substantially the entire length of the inner support tube; and a water cooling circuit including at least one passageway within the inner support tube with an inlet at one end thereof adapted to receive cooling water from an external source, at least one outlet aperture at an opposite end thereof opening to a cooling chamber radially between the inner support tube and the outer target tube; and a plurality of spiral vane segments attached to an outer surface of the inner support tube.

Sputtering target and method/apparatus for cooling the target

The invention concerns a method of treating surfaces and surface-adjacent layers of dental components in particular. A series of several different plasma treatments produces high adhesion between the plasma-treated surface and a layer of plastic applied thereto. The invention also concerns a method of sealing the surface of work by treating it with plasma and covering it with a layer that contains silicate.

Method of treating surfaces

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

A terminal for a light conductor for uniform illumination of a rectangular field in medical and, especially, dental applications has a transparent, cylindrical lens body in a mount with its axis perpendicular to the axis of a socket for receiving the light exit end of the light conductor. The side of the cylindrical lens body facing the socket has a trough-shaped recess of symmetric cross section. The width of the trough-shaped recess continuously expands from the bottom to the margin of the trough-shaped recess, the bottom being perpendicular to the axis of the socket and perpendicular to the axis of the cylindrical lens body.

Terminal for a radiation conductor

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

Hans-Jurgen Tiller