Ivoclar Vivadent Ag

Technische Universitāt Wien

Karlsruher Institut Fur Technologie

Technicshe Universität Wien

Iris Lamparth

Norbert Moszner

Urs Karl Fischer

Robert Liska

Volker Rheinberger

Frank Zeuner

Christian Gorsche

Yohann Catel

Kai Rist

Peter Burtscher

Thorsten Bock

Jörg Angermann

Ulrich Salz

Armin De Meijere

Harald Stüger

Michael Haas

Konstanze Seidler

Georg Gescheidt Demner

Gernot Peer

Alexandros Gianasmidis

Urs-Karl Fischer

Jorg Angermann

Martina Hauner-Westphal

Paul Gauss

Angela Mucke

Alexander Schenzel

Volker M Rheinberger

Bernd Strehmel

Thomas Brömme

John Hendrik

Christopher Barner-Kowollik

Martina Hauner

Tim Krappitz

Florian Feist

Marcel Langer

Christoph Barner-Kowollik

Georg Gescheidt-Demner

Thomas BRÖMME

Radically polymerizable dental material, which includes a combination of a hydroperoxide and a thiourea derivative according to the following Formula (I) as initiator system for the radical polymerization: in which R is absent or is an (n+1)-valent, aromatic, aliphatic, linear or branched C-Chydrocarbon radical, which can be interrupted by one or more ether, thioether, ester, amide or urethane groups; PG is a radically polymerizable (meth)acrylate, (meth)acrylamide or vinyl group; and n is 1, 2 or 3.

Dental materials based on polymerizable thiourea derivatives

Radically polymerizable dental material, which contains at least one ABA or AB block copolymer, preferably at least one monofunctional, radically polymerizable monomer (a) and preferably at least one radically polymerizable urethane di(meth)acrylate telechel (b).

Transparent, fracture-tough polymerization resins for the production of dental shaped bodies

Dental material which comprises at least one compound of formula I, in which Ris a linear, branched or cyclic aliphatic C-Chydrocarbon radical or an aromatic C-Chydrocarbon radical, wherein the aliphatic or aromatic hydrocarbon radical can be substituted or unsubstituted and wherein aliphatic hydrocarbon radicals can be interrupted by one or more urethane groups, ester groups, oxygen atoms and/or sulfur atoms; X, Y, Z independently of each other in each case are &#x2014;COOR, &#x2014;CON(RR)&#x2014;, an aromatic C-Chydrocarbon radical or CN, wherein R, R, Rin each case independently of each other is hydrogen, a linear, branched or cyclic aliphatic C-Chydrocarbon radical or an aromatic C-Chydrocarbon radical, wherein the aliphatic or aromatic hydrocarbon radical can be substituted or unsubstituted and wherein aliphatic hydrocarbon radicals can be interrupted by one or more oxygen atoms, and m is 2 or 3.

Dental materials based on cyclopolymerizable crosslinkers

Radically polymerizable dental material which contains at least one compound of Formulae I to III:  The material preferably additionally contains a radically polymerizable monomer, an initiator for the radical polymerization and filler. It is characterized in particular by a low polymerization contraction stress.

Composite with reduced polymerization shrinkage stress

Radically polymerizable composition which contains at least one vinyl ether according to general formula I: 

Polymer materials with unsaturated transfer reagents

The invention relates to a radically polymerizable dental material having photochromic properties, which contains at least one compound of formula (I) and optionally radically polymerizable monomers, an initiator for radical polymerization and other components.

Dental materials with light-induced reversible coloring

The present invention relates to polymerizable and photochemically crosslinkable compositions which contain at least one polymerizable benzaldehyde derivative according to general formula I and which are suitable as materials for technical and medical applications, for example in surgery or ophthalmology, and in particular as dental materials.

Polymerizable materials based on dimerizable benzaldehyde derivatives

Acyl germanium compound according to general formula [RAr&#x2014;(C&#x2550;O)&#x2014;]&#x2014;Ge and process for the preparation thereof. The compound is suitable as initiator for radical polymerization.

Acyl germanium photoinitiators and process for the preparation thereof

Radically polymerizable silane according to the general formula I in which Ris a linear or branched aliphatic C-C-alkyl radical, phenyl or alkylated phenyl radical, R, Rindependently of each other in each case are absent or are a linear or branched aliphatic C-C-alkylene radical, which can be interrupted by S or O atoms, R, R, Rindependently of each other in each case are &#x2014;Cl, &#x2014;O&#x2014;CH, &#x2014;O&#x2014;CH, &#x2014;CHor &#x2014;CH, X is CHor O, Y is absent, or is O or NR', wherein R&#x2032; is H or a C-alkyl radical, and Z is absent, or is O, NR&#x2033;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;CO&#x2014;NR&#x2033;&#x2014;, &#x2014;O&#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2033;&#x2014;, or &#x2014;NR&#x2033;&#x2014;CO&#x2014;NR&#x2033;&#x2014;, wherein R&#x2033; is H or a C-alkyl radical and wherein the radicals Rand Rcannot be absent at the same time and Z is absent if Ror Ris absent, polycondensates based thereon and fillers surface-modified therewith.

Polymer materials with silane-based transfer reagents

Radically polymerizable dental material, which contains at least one sulphonic acid ester of Formula 1: in which A is H, CN, an aromatic, cycloaliphatic, linear or branched aliphatic C-C-hydrocarbon radical or a combination thereof; X is COO&#x2014; or &#x2014;CON(R)&#x2014; or is absent; B is an aromatic, cycloaliphatic, linear or branched aliphatic C-C-hydrocarbon radical, or a combination thereof; Ris hydrogen or an aromatic, cycloaliphatic, linear or branched aliphatic C-C-hydrocarbon radical; m is an integer from 1 to 6, n is an integer from 1 to 6 and p is an integer from 1 to 6; wherein m and p cannot simultaneously be greater than 1. The compounds of Formula 1 are active as chain transfer agents in radical polymerization.

Materials which can be cured by chain transfer polymerization

The invention relates to a polymerizable composition which comprises a thermolabile polymerizable compound of Formula I:A-[X-(T-X-Sp-X)-T-X-Q-(Z)]&#x2003;&#x2003; Formula I,wherein T represents a thermolabile Diels-Alder or hetero-Diels-Alder group of the Formula  The invention also relates to the use of the polymerizable composition according to the present invention and the compounds of Formula I according to the present invention as polymerization resin or for the preparation of polymerization resins and polymerizates such as adhesives, composites, stereolithographic materials, shaped parts, duromers and mounting and fixing elements, and as dental material and for the preparation of dental materials such as adhesives, cements and filling composites.

Polymerizable compositions based on thermally cleavable compounds

Radically polymerizable dental material, which contains at least one compound of Formula I:  The material preferably additionally contains a radically polymerizable monomer, an initiator for the radical polymerization and filler. It is characterized by a low polymerization contraction stress.

Compositions with controlled network structure

Radically polymerizable dental material, which contains at least one compound of Formula I: and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The materials are characterized by debonding-on-demand properties.

Dental materials with debonding-on-demand properties

The invention relates to a dental restorative material which comprises a thermolabile or photolabile polymerizable compound of Formula I:[(Z)-Q-X)]-T-[Y-Q-(Z)]&#x2003;&#x2003;Formula I,in which T represents a thermolabile or photolabile group, Zand Zin each case independently represent a polymerizable group selected from vinyl groups, CH&#x2550;CR&#x2014;CO&#x2014;O&#x2014; and CH&#x2550;CR&#x2014;CO&#x2014;NR&#x2014; or an adhesive group selected from &#x2014;Si(OR), &#x2014;COOH, &#x2014;O&#x2014;PO(OH), &#x2014;PO(OH), &#x2014;SOOH and &#x2014;SH, wherein at least one Zor Zis a polymerizable group, Qin each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C-Cradical which can be interrupted by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, Qin each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C-Cradical which can be interrupted by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, X and Y in each case independently are missing or represent &#x2014;O&#x2014;, &#x2014;S&#x2014;, CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, R, R, Rand Rin each case independently represent H or a C-Calkyl radical and k, l, m and n in each case independently are 1, 2 or 3.

Dental materials based on monomers having debonding-on-demand properties

Growing community of inventors

Grabs, Switzerland

Iris Lamparth