Ivoclar Vivadent Ag

Construction Research & Technology Gmbh

Simone Klapdohr

Volker Rheinberger

Norbert Moszner

Ulrich Salz

Helmut Mack

Urs Karl Fischer

Burkhard Walther

Jochen Mezger

Jörg Angermann

Silke Flakus

Rolf Mülhaupt

Jörg Zimmermann

Karin Vogel

Tobias Austermann

Dieter Voser

Jorg Angermann

Zhizhong Cai

Laurent Marc

Volker M Rheinberger

The present invention relates to dental materials comprising liquid, nanoparticulate functionalized hydrophobic co-condensates of tetraalkyl silicates with functionalized trialkoxysilanes of the formula IP&#x2014;(CH)&#x2014;Si(OR)

Dental materials containing hydrophobic nanoparticulate silicic acid co-condensates and use thereof

The invention relates to a method for removing water from a mixture containing at least one compound having at least one group reactive towards isocyanate and containing water, the mixture being applied to the surface of a rotating body A, the mixture flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and water evaporating from the mixture. In particular, this method is suitable for removing water from alcohols and amines.

Method for removing water from a mixture

A filler which is surface-modified with a compound of the formula [(PG)-R&#x2014;Z]&#x2014;SP&#x2014;[Y&#x2014;R-(AG)]is particularly suitable for use in dental materials, for the preparation of adhesives, coatings and composites.

Surface-modified fillers

Filler based on glass particles which contain a homo- or copolymer of vinyl chloride on the surface, process for its preparation and its use as a dental material.

Polymer-coated glass filler for use in dental materials

Polymerizable materials which contain (1) 1 to 80 wt.-% of at least one polysiloxane, (2) 0.1 to 5 wt.-% of one or more initiators for radical polymerization, (3) 0 to 60 wt.-% of radically polymerizable monomer and (4) 1 to 50 wt.-% of one or more radically polymerizable monomers which carry at least phosphonic acid group, sulphonic acid group and/or mono- or dihydrogen phosphoric acid ester group, the polysiloxane (1), the monomer (3) or both being substituted by fluorine. The materials are suitable in particular for the coating of natural or artificial teeth.

Dental coating materials

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Rosenheim, Germany

Simone Klapdohr