Dentsply Sirona Inc.

Bayer Aktiengesellschaft

Hoechst Aktiengesellschaft

Clariant Finance (bvi) Limited

Ivoclar Vivadent Ag

E.i. Dupont De Nemours and Company

Basf Aktiengesellschaft

Evonik Degussa Gmbh

H.c. Starck Gmbh

Dentsply International Inc.

Clariant Produkte (deutschland) Gmbh

Wilkinson Sword Gmbh

Ivoclar Ag

Carl Zeiss Meditec Ag

Rhodia Operations

Helmut Ritter

Joachim E Klee

Oliver Elsner

Roman Morschhaeuser

Florian Szillat

Matthias Krull

Frank Osan

Arnold Schneller

Freddy Helmer-Metzmann

Norbert Moszner

Christian Scheufler

Maximilian Maier

Caroline Renn

Andreas Facher

Alexander Lerch

Wilfried Paulus

Andreas Utterodt

Wilhelm Brandes

Volker Rheinberger

Paul Reinecke

Wilfried Knott

Engelbert Kuhle

Reinhold J Leyrer

Emmanouil Spyrou

Xiaoming Jin

Hermann Genth

Christoph Weber

Christoph Kayser

Friedrich Jonas

Carmen Flosbach

Michael Ferenz

Peter Klug

Knud Reuter

Hans J Rosenkranz

Harald Pielartzik

Frauke Henning

Peter Burtscher

Ulrich Salz

Hermann Perrey

Martin Glos

Roman Morschhäuser

Michael Fiedel

Uwe Walz

Andrew Murray Lichkus

Alexander Karbach

Christian Hartung

Christoph Hamers

Friedrich Georg Schmidt

Sven Pohle

Sarah Schmitz

Ralf Thorwirth

Roland Nolte

Konstantin Ledjeff

Reinhard Laven

Jacques Lalevee

Christoph P Fik

Fabrice Morlet-Savary

Dominika Bernert

Celine Dietlin

Urs-Karl Fischer

Julia Gansel

Jean Pierre Fouassier

Eckhart Pein

Maximilliam Maier

Mareike Bardts

Monir Tabatabai

Jürgen Stein

Uwe Falk

Hui Lu

Noelle Wrubbel

Lambertus Groenendaal

Holger Schoepke

Elke Gollan

Reinhard Preuss

Dirk-Henning Menz

Susanne Kreischer

Mariem Bouzrati-Zerelli

Michael Herm

Heinz-Peter Hemmerich

Thomas Tigges

Matthias Worm

Jiawen Zhou

Norbert Beuscher

Norbert Beye

Kira Neuhaus

Cornelia Bodinet

Jacques Lalevée

Céline Dietlin

Stefan Brugger

Hakan Cinar

Matthias Schaub

Daniel Schmitz

Hanspeter Gethoeffer

Hartmut Loewen

Joachim Storsberg

Patrick Gloeckner

Ulrich Lampe

Mattias Worm

Georg Draheim

Eckhardt Pein

Disclosed herein is a dental material containing a polymerizable hydrolysis stable polycyclic amide monomer. The present disclosure relates to methods of making and use of the polymerizable hydrolysis stable polycyclic amide monomer for the preparation of a dental polymerizable hydrolysis stable polycyclic amide monomer composition. The present disclosure further relates to a cured dental material obtained by polymerizing the dental material.

Dental composition

The present invention is related to a curable dental two-pack composition comprising:

Curable dental two-pack composition

Provided are transparent molded bodies for use as a scintillator for measuring the type and intensity of ionizing and non-ionizing radiation, including an organic polymer and, if desired, at least one additive which, under the influence of at least one of ionizing and non-ionizing radiation, emits scintillation radiation in the range from UV to IR light, the aim is to improve optical and mechanical properties, robustness against environmental influences and the manufacturability. This was achieved in that the organic polymer at least in part contains a polyaddition product of polyfunctional isocyanates and one or more polyfunctional hardener components.

Plastic scintillator based on an organic polyaddition product

The present invention relates to a polymerizable polyacidic polymer and to a process for preparing the polymerizable polyacidic polymer. Furthermore, the present invention relates to an aqueous dental composition comprising the polymerizable polyacidic polymer, to a use of the polymerizable polyacidic polymer for the preparation of a dental composition and to an acrylic acid derivative copolymer.

Polymerizable polyacidic polymer

A dental composition comprising a polymerizable acidic compound of the following formula (I): 

The present disclosure relates to an aqueous dental glass ionomer composition comprising a reactive particulate glass, a water-soluble, polymerizable polymer which is reactive with the particulate glass in a cement reaction, a hydrolysis-stable, water-soluble monomer having a single polymerizable double bond and optionally a carboxylic acid group or hydroxyl group; and a polymerization initiator system, wherein the polymerizable polymer is obtainable by a process comprising a step of polymerizing a mixture comprising a first polymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and optionally a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary hydroxyl and/or amino group(s) and a second polymerizable organic moiety, for obtaining an water-soluble polymer; a step of coupling to the water-soluble polymer a compound having a polymerizable moiety and a functional group reactive with an optionally protected carboxylic acid group of repeating units derived from the first polymerizable monomer or an optionally protected hydroxyl and/or amino group of repeating units derived from the second copolymerizable monomer in the water-soluble polymer obtained in step a), wherein the optionally protected carboxylic acid group and the optionally protected hydroxyl and/or amine group are deprotected, so that polymerizable pendant groups are linked to the backbone by ester groups, urethane groups and/or amide groups, and, optionally, a step of deprotecting the protected carboxylic acid group for obtaining a polymerizable polymer.

Aqueous dental glass ionomer composition

The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.

The present invention relates to a dental composition comprising an initiator system comprising a sensitizer compound having an acylsilyl- or acylgermyl-group and a specific coinitiator compound. The present invention also relates to an initiator system consisting essentially of the sensitizer compound having an acylsilyl- or acylgermyl-group and a coinitiator compound wherein a C&#x2014;H bond dissociation energy is less than 95 Kcal/mol. Furthermore, the present invention relates to the use of this initiator system for the preparation of a dental composition.

A process for producing a water-soluble, hydrolysis-stable, polymerizable polymer, comprising a) a step of copolymerizing a mixture comprising (i) a first copolymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and (ii) a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary amino groups and a second polymerizable organic moiety, for obtaining an amino group containing copolymer; b) a step of coupling to the amino group containing copolymer a compound having a polymerizable moiety and a functional group reactive with an amino group of repeating units derived from the second copolymerizable monomer in the amino group containing copolymer obtained in the first step wherein the optionally protected amino group is deprotected, so that polymerizable pendant groups are linked to the backbone by hydrolysis-stable linking groups, and, optionally, a step of deprotecting the protected carboxylic acid group after step (a) or step (b), for obtaining a polymerizable polymer.

Polymer for a glass ionomer cement

A dental cement hardened by a cement reaction involving the specific polymerizable polyacidic polymer and optionally additional crosslinkable groups, has reduced shrinkage and improved mechanical properties, in particular with regard to flexural strength and fracture toughness. Moreover, the specific polymerizable polyacidic polymer of the present invention contains a high number of acidic groups which is not reduced by the presence of polymerizable moieties, whereby water solubility of the uncured polymer is not impaired by the presence of the polymerizable moieties.

An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant groups, (c) optionally dispersed nanoparticles comprising grafted linear or branched polymer chains comprising acidic groups, and having a polymer backbone characterized in that a polymer backbone of the linear or branched polymer of component (b) and/or, if present, the grafted linear or branched polymer chains of component (c) are obtainable a process comprising (i) cyclopolymerizing or cyclocopolymerizing one or more compounds of the following formula (I): 

Dental material, which contains an ene compound with two or more C&#x2014;C multiple bonds and a thiol according to general Formula (1) or an oligomer based on such a thiol, wherein n, p and m are chosen such that the thiol has a total of at least 3 SH groups.

Dental materials based on low-odour thiols

An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant groups, (c) optionally dispersed nanoparticles comprising grafted linear or branched polymer chains comprising acidic groups, and having a polymer backbone characterized in that a polymer backbone of the linear or branched polymer of component (b) and/or, if present, the grafted Sinear or branched polymer chains of component (c) are obtainable a process comprising (i) cyclopolymerizing or cyclocopolymerizing one or more compounds of the following formula (I). 

An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises&#x2014;S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.

Growing community of inventors

Wuppertal, Germany

Helmut Ritter