3m Espe Ag

3m Innovative Properties Company

Espe Dental Ag

University of Missouri

3m Innovative Properties Company 3m Center

3m Deutschland Gmbh

Wolfgang Weinmann

Rainer A Guggenberger

Joachim Zech

Oswald Gasser

Gunther Eckhardt

Karsten Dede

Wolfgang Soglowek

Joel D Oxman

Marc Peuker

Peter Bissinger

Helmut Pauser

Christoph H Thalacker

Thomas Klettke

Gunther Lechner

Victoria A Russell

Martin Preininger

Craig A Dykstra

Moritz Werny

Philipp Refior

Malte Korten

Michael Jahns

Gallus Schechner

Christian A Richter

Thomas Luchterhandt

Bastian P Kirchner

Arne Thaler

Bernd Gangnus

Anja Friedrich

Wolf Steiger

Stefan Hoescheler

Oliver Kappler

Oliver Frey

Daniel D Oberpertinger

Ingo Häberlein

Susanne Wegner

Andrea Stippschild

Cornelia Fuehrer

A system () for washing a 3D-printed object (). The system () has a washing device () and a workpiece () that includes the 3D-printed object (). The washing device () has a container () that forms a process chamber () for receiving a liquid cleaning agent (), and the container () has an inlet () into the process chamber (). The workpiece () further has a support structure () that supports the 3D-printed object () and a base () supporting the support structure (). The base (), in a mating relationship with the inlet (), forms a restraint preventing the workpiece () from passing through the inlet () in a situation in which the workpiece () is placed with the 3D-printed object () located within the process chamber ().

System for washing a 3D-printed object

Dental instrument

The present invention relates to a composition comprising at least one biologically active protease and at least one biologically active glycosidase wherein the proteases and the glycosidases are present in an activity ratio of from 1,000,000:1 to 1:1,000,000 and wherein the composition has a total enzyme activity of at least 2 U/ml. Furthermore, the present invention relates to a process of producing such enzyme comprising composition and to processes of removing caries. Moreover, the invention relates to the use of one or more enzyme comprising compositions for producing a treatment agent for removing caries.

Enzyme containing composition, process of producing said composition and its use

The invention relates to a radiation curable composition for taking a dental impression comprising (A) a cationically hardenable compound comprising at least one aziridine moiety, and (B) a radiation sensitive starter, the radiation sensitive starter comprising an onium salt, a ferrocenium salt, a combination or mixture thereof.

Radiation curable composition, process of production and use thereof

The invention features a photopolymerizable composition that comprises a cationically polymerizable resin, and a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and one or more anthracene-based compounds as electron donors. Electron donor combinations used in the invention include multiple substituted anthracene compounds or a combination of at least one substituted anthracene compound with unsubstituted anthracene.

Photoinitiator systems with anthracene-based electron donors for curing cationically polymerizable resins

The invention relates to filling systems containing as component i) a sealing system which is capable of bonding to the tooth hard substance, as component ii) a filling material suitable for restorative dentistry, the filling system containing in addition a component iii) in component i) and/or component ii) which reduces the curing of the respective other component by disturbance of the curing mechanism only in the boundary layer between sealant and filling material such that the bonding between components i) and ii) is less than the bonding of component i) to the tooth hard substance.

Amalgam substitute

The invention relates to a polymerizable dental material containing: (a) 3 to 80 wt. % of one or more cationically curable monomers; (b) 3 to 90 wt. % of one or more radio-opaque fillers; (c) 0.01 to 25 wt. % of initiators, retarders and/or accelerators, and; (d) 0 to 25 wt. % of auxiliary agents, whereby the cited percentages each refer to the total weight of the material. Filler (b) is produced by means of a melting method and is selected so that it has a refractive index of n=1.49&#x2013;1.54, so that the viscosity of the polymerizable dental material, after a period of at least 9 months during which it was stored at a temperature ranging from 20 to 25&#xb0; C., has a value of +/&#x2212;50 % of the initial value measured 24 hours after the polymerizable dental material was produced, and so that the polymerizable dental material has a reactivity of the type that, once polymerization is initiated, the amount of the maximum heat flux generated by the dental material equals at least 0.8 mW/mg, and this maximum heat flux is attained within a period of no longer than 60s.

Cationically curable dental materials

The present invention is directed to polymerizable dental compositions containing (a) 3 to 80 wt. % of cycloaliphatic epoxides; b) 0 to 80 wt. % of an epoxide or a mixture of epoxides which are different from a); c) 3 to 85 wt. % of a filler material; d) 0.01 to 25 wt. % of initiators, inhibitors and/or accelerators; e) 0 to 25 wt. % of auxiliary agents, the individual percentages of which are in relation to the total weight. The new polymerizable agents are particularly suited as dental material.

Polymerizable compositions based on epoxides

The invention relates to monomers according to the formulae:as well as curable materials containing these monomers.

Prepolymeric (meth)acrylates with polycyclic or aromatic segments

The invention relates to polymerizable preparations which contain: (a) 3 to 80 wt. % of an epoxy or of a mixture of epoxies of general formula (I), whereby n and m, independent of one another, represent 0, 1, 2 or 3, and n&plus;m ranges from 2 to 6, and whereby the molar mass of the epoxy or the average molar mass of the mixture of epoxies ranges from 250 to 1000 g/mol; (b) 0 to 80 wt. % of an epoxy or of a mixture of epoxies that differ from (a); (c) 3 to 85 wt. % of fillers; (d) 0.001 to 25 wt. % of initiators, retarders and/or accelerators, and; (e) 0 to 25 wt. % of auxiliary agents, whereby the specified percentages refer to the total weight of the preparation.

Polymerizable preparations based on epoxides that contain silicon

The invention relates to two-component preparations comprising components (I) and (II), wherein at least one component comprises epoxy compounds and the preparations cure by cationic polymerization, initiated by Lewis and/or Br&ouml;nsted acids, after mixing of the two components, the preparations comprising the Lewis and/or Br&ouml;nsted acids in the form of precursor compounds which are suitable for the formation of Lewis and/or Br&ouml;nsted acids.

Two-component preparations containing epoxy compounds

Polymerisable materials which are based on hardenable siloxane compounds

The present invention is directed to polymerizable dental compositions containing a) 3 to 80 wt. % of cycloaliphatic epoxides; b) 0 to 80 wt. % of an epoxide or a mixture of epoxides which are different from a); c) 3 to 85 wt. % of a filer material; d) 0.01 to 25 wt. % of initiators, inhibitors and/or accelerators; e) 0 to 25 wt. % of auxiliary agents, the individual percentages of which are in relation to the total weight. The new polymerizable agents are particularly suited as dental material.

Growing community of inventors

Weilheim, Germany

Wolfgang Weinmann