3m Innovative Properties Company

Trevira Gmbh

Andreas R Maurer

Klaus Hintzer

Tilman C Zipplies

Harald Kaspar

Werner Schwertfeger

Michael Jürgens

Christoph Schulte

Kai Helmut Lochhaas

Richard M Flynn

Joachim Zech

Helmut Pauser

George G I Moore

Peter U Osswald

Jay F Schulz

Herbert Koenigsmann

Michael C Dadalas

Ludwig Mayer

Hendrik M Grupp

Thomas Klettke

Michael Knee

Ruediger Hampe

Rüdiger Hampe

Zai-Ming Qiu

Rudolf J Dams

Marc Peuker

Miguel Antonio Guerra

Peter Bissinger

Manfred Harre

Michael S Terrazas

Henning Hoffmann

Ingo Haeberlein

Herbert Königsmann

Andreas Johannes Boehm

Martin Goetzinger

Jens Gramann

Rudolf Schmid

Michael Juergens

Sebastian Guggenmos

Arne Thaler

Egon Obermaier

Werner Fichtl

Johannes M Leykauff

Astrid Weber

Kai Helmut Löchhaas

Markus Höhenberger

Roland Schreiner

Ingo R Haeberlein

Hendrik Grupp

Joachim W Zech

Michael JÜRGENS

Johannes Leykauff

James A Mcdonell

George GI Moore

Werner Schwertferger

Michael Jüergens

The invention relates to a kit of parts comprising a Base Paste (B) and a Catalyst Paste (C), Base Paste (B) comprising a cationically hardenable component, Catalyst Paste (C) comprising a starter component suitable to contribute to the hardening of the cationically hardenable compound, the composition obtained when combining the compositions of Base Paste (B) and Catalyst Paste (C) comprising in addition a porous water-adsorbing component and water, the porous water-adsorbing component being selected from molecular sieves, zeolites, silica gel and mixtures thereof, wherein either the porous water-adsorbing component is present in Base Paste (B) and the water is present in Catalyst Paste (C), or the water-adsorbing component is present in Catalyst Paste (C) and the water is present in Base Paste (B). The invention also relates to a dental retraction composition obtainable by mixing Base Paste (B) and Catalyst Paste (C) and to a process of taking a dental impression and/or conducting a dental retraction using the kit of parts.

Kit of parts containing a cationically hardenable composition and use as dental retraction material

The invention relates to a curable dental composition comprising a cationically hardenable compound (A) comprising at least two aziridine moieties, a starter (B) being suitable to cure the hardenable compound (A), polymeric particles as filler component (C), the polymeric particles having a maximum particle size of 150 &#x3bc;m or below and the component(s) the polymeric particles are made of being based on fluoropolymers comprising more than 99% monomer repeating units of tetra fluoro ethylene. The invention also relates to the use of such composition for producing a dental impression material or a dental retraction material.

Cationically curing dental composition containing polymeric particles and use thereof

A process for taking a dental impression and/or conducting a dental retraction. The process includes the steps of:

Process for taking a dental impression and curable composition for use in a dental impressioning and retraction process

The present invention relates to a kit of parts comprising Paste (A), Paste (B) and Paste (C), the pastes being characterized as follows: Paste (A) comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups, and at least one organohydrogenpolysiloxane, at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s); Paste (B) comprising at least one polyorganosiloxane optionally with olefinically unsaturated groups, at least one addition cure catalyst, optionally at least one alkylsiloxane having at least one carbinol, silanol, alkoxy, carboxyl or amino group, optionally filler(s) and optionally additive(s) Paste (C) comprising a softener, a condensation cure catalyst, optionally filler(s), and optionally additive(s) optionally at least one polyorganosiloxane optionally with olefinically unsaturated groups. The invention is also directed to a system for storing and delivering Paste (A), Paste (B) and Paste (C), the system comprising three compartments for storing the respective pastes, means for delivering the respective pastes to an outlet orifice and an interface for receiving a mixing tip. The kit of parts or the system is in particular useful for conducting a dental retraction and dental impression process.

Kit of parts for conducting a dental impression and retraction process

The invention features a composition which can or is to be used in a dental retraction, the composition comprising liquid a liquid and a layer type 1:1 silicate mineral and a layer type 2:1 silicate mineral in a ratio from about 50/50 to 5/95 wt.-% with respect to each other. The invention also relates to a container containing the dental retraction composition and to a kit comprising parts A and B, wherein part A comprises the dental retraction composition and part B comprises at least one accessory selected from the group of applier, dental impression material, retraction cap(s), a container for storing and dispensing the composition and combinations thereof. The invention further features a process of dispensing a dental retraction composition, the process comprising the steps: providing a dental retraction composition contained in a container, placing the container in an applier, and using the applier for dispensing the dental retraction composition out of the container.

Dental retraction composition, method of production and use thereof

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

A device for use in retracting a gingiva from a human tooth by widening a gingival sulcus with a dental composition. The device comprises a cannula with a free end having an opening for dispensing the dental composition. The free end is shaped to be inserted with its front in the entry of the gingival sulcus, and to laterally displace the gingiva from the tooth as the cannula is moved in the gingival sulcus. The invention may help to achieve a reliable and cost effective gingival retraction treatment.

Device and a method for delivery of a dental composition

A dispensing device for a dental substance which has a container for receiving the dental substance, a piston movable in the container, a catch for engagement by an applicator, and further a resilient resilient adapter. The device may be used in different types of applicators and is relatively inexpensive.

Device for a dental substance

A dispensing device for a dental substance which comprises a body formed in a single piece. The body connects a first passageway and a second passageway which extend along different paths. The body further comprises a nozzle with a free dispensing end. The second passageway extends into the nozzle and tapers toward the dispensing end. The invention helps to reduce manufacturing costs, and helps facilitating handling of the device.

Dispensing device for a dental substance

The invention relates to a curable dental composition comprising a curable polyether group containing polymer as component (A), an initiator capable of initiating a curing reaction of component (A) as component (B) and a certain F-containing compound as component (C). The invention also relates to a method of production and use of the curable dental composition or a respective kit of parts for the preparation of or as impression material or for the preparation of crowns and bridges.

Polyether group containing dental composition containing an F-containing compound, 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

Compounds represented by formula (Rf-Q-X)&#x2014;Z. Each Rf is independently a partially fluorinated or fully fluorinated group selected from Rf-(O)&#x2014;CHF&#x2014;(CF)&#x2014;; [Rf-(O)C(L)H&#x2014;CF&#x2014;O]&#x2014;W&#x2014;; CFCFH&#x2014;O&#x2014;(CF)&#x2014;; CF&#x2014;(O&#x2014;CF)&#x2014;; and CF&#x2014;O&#x2014;(CF)&#x2014;O&#x2014;CF&#x2014;. Methods of reducing surface tension of a liquid, making foams, and treating a surface using the compounds are also disclosed.

Fluorinated ether compounds and methods of using the same

A method of making a fluoropolymer dispersion by first providing a fluoropolymer dispersion comprising fluoropolymer particles and one or more fluorinated surfactants selected from fluorinated carboxylic acids or salts thereof having the general formula:[R&#x2014;O-L-COO]X&#x2003;&#x2003;(I)

Method of making fluoropolymer dispersion

A composition including at least one first divalent unit represented by formula: Each Rf is independently selected from the group consisting of Rf&#x2014;(O)&#x2014;CHF&#x2014;(CF)&#x2014;; [Rf&#x2014;(O)&#x2014;C(L)H&#x2014;CF&#x2014;O]&#x2014;W&#x2014;; RfO&#x2014;(CF); F(CF)&#x2014;(O&#x2014;CF2)&#x2014;O&#x2014;CF&#x2014;; and CF&#x2014;O&#x2014;(CF)&#x2014;(OCF(CF)&#x2014;CF)&#x2014;O-L-. Each Q is independently selected from the group consisting of a bond, &#x2014;C(O)&#x2014;N(R)&#x2014;, and &#x2014;C(O)&#x2014;O&#x2014;. Each X is independently selected from the group consisting of alkylene and arylalkylene, wherein alkylene and arylalkylene are each optionally interrupted by at least one ether linkage and optionally terminated by &#x2014;N(R)&#x2014;C(O)&#x2014; or &#x2014;O&#x2014;C(O)&#x2014;. R and Rare each independently selected from the group consisting of hydrogen and alkyl having from 1 to 4 carbon atoms. Rfrepresents a partially or fully fluorinated alkyl group having from 1 to 10 carbon atoms and optionally interrupted with at least one oxygen atom. Rfis selected from the group consisting of CFCFH&#x2014; and F(CF2)-. Methods of reducing surface tension of a liquid, making foams, and treating a surface using the compositions are also disclosed. 

Fluorinated ether compositions and methods of using the same

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Langenneufnach, Germany

Andreas R Maurer