3M Innovative Properties Company

3M Espe Ag

3M Deutschland Gmbh

Thomas Klettke

Peter Bissinger

Karsten Dede

Thomas Luchterhandt

Hendrik M Grupp

Cornelia B Fuehrer

Ruediger Hampe

Joachim Zech

Adrian S Eckert

Andreas R Maurer

Gunther Eckhardt

Ingo Haeberlein

Christoph Schulte

Kevin Michael Lewandowski

Sumita Basu Mitra

Michael S Wendland

Ahmed Salih Abuelyaman

Andreas Johannes Boehm

Oswald Gasser

Prabhakara Satyauolu Rao

Wolfgang Weinmann

Miriam Hansen

Bernd Kuppermann

Cornelia Führer

Joel D Oxman

David K Cinader, Jr

Bradley Dene Craig

Rainer A Guggenberger

Reinhold Hecht

Erich Wanek

Steven M Aasen

Guenther Lechner

Victoria A Russell

Sebastian Zeller

Roger A Mader

Christoph H Thalacker

Dwight W Jacobs

Afshin Falsafi

Martin Goetzinger

Jens Gramann

Brian A Shukla

Sebastian Guggenmos

Bernd Gangnus

Markus Mikulla

Oliver Kappler

Oliver Frey

Markus Watermann

Cornelia Fuehrer

Andreas Rombach

Günther Lechner

Andrea Hailand

David K Cinader

Hendrik Grupp

Dwight Wayne Jacobs

Roger Anthony Mader

The invention relates to a curable dental retraction composition comprising alginate and a solvent, with the proviso that essentially no crosslinker in an amount effective to start setting of the curable dental retraction composition is present. The invention also relates to a container containing said composition and to a kit comprising two parts, wherein the first part comprises the curable dental retraction composition of the present invention and the second part comprises a crosslinker being able to start setting of the dental retraction composition.

Curable dental retraction composition, method of production and use thereof

The present disclosure relates to a curable composition to be prepared by mixing a base paste and a catalyst paste, the base paste comprising (A) a hardenable compound comprising at least two aziridine moieties, and (B) a metal containing component containing anions and/or ligands, the metal containing component being present in an amount of about 0.1 to about 5 wt.-%, the metal being selected from Zn, Cu, Co, Ni, Ag and combinations thereof, the anions or ligands being selected from oxide, hydroxyl, (hydro)carbonate, sulphate, nitrate, halide, lactate, benzoate, wolframate, linear or branched aliphatic carboxylic acid anions, ligands having not more than two coordinating moieties and combinations thereof, the catalyst paste comprising (C) a Lewis acid, the composition optionally further comprising (D) a retarder, (E) filler and (F) additive(s). The present disclosure also relates to a kit of parts, the use of a metal containing component and a method of taking a dental impression.

Curable composition, process of production and use thereof

The invention relates to plastics which are self-disinfecting. The invention relates in particular to polyether or silicone based dental plastics and impression materials in which a biocidal material is incorporated. The dental impression material ace. to the invention comprises at least a polymerizable base paste BP and a non-aqueous catalyst paste CP, wherein the base paste BP comprises about 0.001 to about 10% by weight of a water-stable anti-microbial agent. Preferred anti-microbial agents are selected from the group consisting of Hexitidin, Cetypyridininumcloride (CPC), Chlorhexidine and its derivates (CHX) and Triclosan.

Anti-microbial dental impression material

The invention relates to a hardenable dental composition comprising component (A) comprising a cationically hardenable compound, component (B) comprising an initiator being able to initiate the hardening reaction of the cationically hardenable compound, and component (C) comprising a filler, wherein the filler comprises a filler body and a filler surface, the filler surface comprising side groups with polar moieties. The invention also relates to a process of producing the dental composition, to the use of the dental composition as dental impression material and to a method of taking an impression of dental tissue.

Cationically hardenable dental composition, process of production and use thereof

A nozzle head () for a powder jet device (), for use in applying dental material, comprises a first fluid flow path () for delivering a powder/fluid mixture to a first discharge nozzle (A). A second fluid flow path () is provided for delivering a liquid to a second discharge nozzle (A) located adjacent the first discharge nozzle (A), so that the materials discharged by the first and second discharge nozzles combine at a desired location to form a dental composition. A nozzle-clearing member () is located inside the nozzle head and is movable to remove powder material from the first discharge nozzle when the flow of powder/fluid mixture to the nozzle ceases.

Powder jet device for applying dental material

The invention relates to a dental impression material containing a rheological modifier. The rheological modifier is in particular useful for adjusting shear-thinning properties of non-water based dental impression materials, especially of precision impression materials. It further relates to a method for producing a dental impression material.

Dental impression material containing rheological modifiers and process of production

Dental syringe

The invention relates to a dental composition comprising a hardenable powder to be used in a process for retraction of dental tissue. The invention also relates to a kit of parts comprising the dental composition comprising a hardenable powder, a hardening agent, optionally a handpiece of a powder jet device, optionally a powder jet device, and optionally retraction caps. In a further aspect, the invention relates to a method for retracting dental tissue comprising the steps of applying a dental composition comprising a hardenable powder with a powder jet device into the sulcus between soft and hard dental tissue, applying a composition comprising a hardening agent either before or after the previous step, leaving the dental composition in the sulcus for a time sufficient to effect retraction of the soft dental tissue and removing the dental composition from the sulcus.

Dental retraction composition, production thereof and use of a powder jet device for dental retraction

The invention relates to a curable dental retraction composition for reacting gingiva from a prepared tooth structure. The composition comprises an alginate, a di- and/or trivalent ion source, water, a retarder and a filler.

The invention relates to a composition comprising a prepolymer as component (A), wherein the prepolymer comprises aziridino groups and is characterized by an equivalent weight EW1, a crosslinker as component (B), wherein the crosslinker has a structure being different from the structure of the prepolymer and comprises aziridino groups and is characterized by an equivalent weight EW2, an initiator as component (C) being able to start curing of the composition, optionally filler(s) as component (D) and optionally additive(s) as component (E), wherein equivalent weight is defined as (molecular mass of the molecule)/(number of aziridino groups present in the molecule) and wherein EW1&#x3e;EW2. The invention also relates to the use of the composition for coating, sealing, moulding, adhering, making impressions, producing a dental material.

Composition containing aziridino groups and use thereof

The invention relates to a composition comprising a prepolymer as component (A), wherein the prepolymer comprises aziridino groups and is characterized by an equivalent weight EW1, a crosslinker as component (B), wherein the crosslinker has a structure being different from the structure of the prepolymer and comprises at least three 2-alkyl-substituted aziridino groups and is characterized by an equivalent weight EW2, an initiator as component (C) being able to start curing of the composition, optionally filler(s) as component (D) and optionally additive(s) as component (E), wherein equivalent weight is defined as (molecular mass of the molecule)/(number of aziridino groups present in the molecule) and wherein EW1&#x3e;EW2. The invention also relates to the use of the composition for coating, sealing, molding, adhering, making impressions, producing a dental material.

Composition containing aziridino groups, method of production and use thereof

The invention relates to preparations based on polymerizable polyether materials and a fluidity improver and to the use thereof in producing dental materials, especially impression materials.

Polyether-based preparations and use thereof

The invention relates to an initiator comprising at least one structural element characterized by the following formula (I) wherein Xis a non or low coordinating anion, R1, R2, R3, R4 are independently linear, cyclic or branched C-Calkyl or alkylene groups, wherein one or more of the methylene groups contained in the alkyl or alkylene group can be substituted by &#x2014;CO&#x2014;, &#x2014;CONH&#x2014;, &#x2014;CON(CH)&#x2014;, &#x2014;S&#x2014; and/or &#x2014;O&#x2014;, and wherein R1, R2, R3 and/or R4 can act as a bridging element connecting two or more structural elements. The invention is also related to a process of producing the initiator and to a curable composition comprising the initiator, a process for producing the curable composition a kit comprising a cationically curable composition and the inventive initiator and the use of the initiator or the curable composition comprising the initiator for various applications, especially in the dental field. 

Sulfonium initiators, process for production and use in cationic polymerizable compositions

The present invention relates to dental compositions comprising a halogenated epoxy functional ether derivative comprising at least one aryl alkyl ether moiety, at least one halogen atom attached to each aryl residue of the aryl alkyl ether moieties, at least two aliphatic epoxy moieties, no glycidyl ether structure, an initiator, optionally filler and optionally additive components selected from the group of modifiers, dyes, pigments, thixotropic agents, flow improvers, polymeric thickeners, surfactants, odorous substances, diluting agent(s) and flavorings.

Dental composition containing epoxy functional polymerizable compounds

Growing community of inventors

Diessen, Germany

Thomas Klettke