Espe, Fabrik Pharmazeutischer Praparate Gmbh

Ernst Muhlbauer Kg

Espe Stiftung & Co. Produktions

Heijo Hubner

Oswald Gasser

Peter Jochum

Werner Schmitt

Wolf-Dietrich Zahler

Dierk Lubbers

Manfred Holupirek

Wolfgang Muhlbauer

Christian Herzig

Impression compound with a silicon base and wax admixture

(Methy)acrylic acid esters of the general formula

(Meth)acrylic acid esters and the use thereof for preparing dental

The physical properties, especially resistance to abrasion, to bending and to pressure, of plaster models for use in dentistry are improved in that a plaster model obtained in a manner known in the art is impregnated with (a) at least one photopolymerizable ester of acrylic and/or methacrylic acid, (b) at least one photopolymerization initiator, and (c) optionally at least one photopolymerization activator--(a), (b) and (c) being present in liquid or dissolved state--and the impregnated plaster model is irradiated with light suitable to initiate photopolymerization by the photoinitiator.

Process for producing plaster models for use in dentistry

Imidazoles in dissolved form act as an agent for retarding the gelation of the polymerization of aziridine compounds initiated with sulfonium salts. The composition is particularly useful in dentistry applications, such as in the preparation of impressions and provisional denture parts.

Imidazole agent for retarding the polymerization of aziridine compounds

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Worthsee, Germany

Heijo Hubner