3M Innovative Properties Company

3M Espe Ag

Espe Dental Ag

Solventum Intellectual Properties Company

Markus Mikulla

Rainer A Guggenberger

Robert F Peez

Peter Braun

Peter Bissinger

Michael Jahns

Reinhold Hecht

Gunther Eckhardt

Guenther Lechner

Gabriele Rackelmann

Joel D Oxman

Sumita Basu Mitra

Ahmed Salih Abuelyaman

Jimmie Rae Baran, Jr

David K Cinader, Jr

Bradley Dene Craig

Adrian S Eckert

Thomas Klettke

Erich Wanek

Afshin Falsafi

Steven M Aasen

Thomas Luchterhandt

Brian A Shukla

Manfred Ludsteck

Klaus-Peter Stefan

Kai U Claussen

Stefan Hoescheler

Gail S Boardman

Cornelia B Fuehrer

Bradley D Craig

Bernd Anich

Johannes M Leykauff

Robert May

Simone Raynoschek

Frauke Bokeloh

Andrea Hailand

Christine Lienau

Volker Bambach

Jimmie R Baran

Robert Peez

The invention relates to a hardenable dental resin composition provided as a kit of parts comprising a powder part and a liquid part, the powder part comprising acid-reactive glass filler A, non acid-reactive nanocluster filler B, the liquid part comprising polymerizable components with an acidic moiety, polymerizable components without an acidic moiety, the hardenable dental composition further comprising a dual-cure initiator system the components of which being distributed between the powder part and the liquid part, wherein the dual-cure initiator system comprises sensitizing agent(s), oxidizing component(s), (thio)barbituric acid component(s) and transition metal component(s). The composition can be used as a self-adhesive dental resin filling material, self-adhesive dental resin core build up material, self-adhesive dental resin cement material, self-adhesive fissure sealing material, a self-adhesive dental root channel material.

Self-adhesive dental resin composition and use thereof

The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler A, phyllo silicate(s), Paste B comprising water, poly-acid, non acid-reactive filler B, optionally chelating agent. The invention also relates to a hardenable composition obtainable by combining the pastes of the kit or parts and to the use of such a composition as or for preparing a dental cement, dental filling material, dental core build up material or dental root channel filling material.

Kit of parts for producing a paste type glass ionomer cement, process of production and use thereof

The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit of parts comprising a Powder Part P and a Liquid Part L, Powder Part P comprising: acid-reactive inorganic filler, Liquid Part L comprising: water, complexing agent, polyacid, either the Powder Part P or the Liquid Part L or the Powder Part P and the Liquid Part L comprising non-aggregated nano-sized particles based on silica or alumina, the composition obtained by combining the components of Powder Part P and Liquid Part L before hardening comprising the components in the following amounts: non-aggregated nano-sized particles: from 0.1 to 15 wt.-%, acid-reactive filler in an amount from 50 to 75 wt.-%, polyacid: 7 to 20 wt.-%, complexing agent: 0.5 to 3 wt.-%, water: 5 to 18 wt.-%, wt.-% with respect to the weight of the whole composition.

Kit of parts for producing a glass ionomer cement, process of production and use thereof

The application relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit comprising a Paste A and a Paste B, Paste A comprising water, acid-reactive inorganic filler C, non acid-reactive filler A, Paste B comprising water, polyacid, complexing agent, non acid-reactive filler B, the mean particle size of non acid-reactive filler B being larger than the mean particle size of non acid-reactive filler A, the water content of the composition obtained when mixing Paste A and Paste B being below 20 wt.-%. The application also relates to a device for storing such a kit of parts and the use of the kit of parts and/or the device for preparing a dental cement, dental filling material, dental core build up material or dental root channel filling material.

The invention relates to a kit of parts for preparing a glass ionomer cement, the kit comprising a Part A and a Part B, Part A being a powder and comprising an acid-reactive filler in an amount above about 60 wt. %, the acid-reactive filler having a mean particle size in the range of 3.5 to 10 &#x3bc;m, an non acid-reactive filler in an amount above about 1 wt. %, the non acid-reactive filler having a mean particle size in the range of 1.0 to 3.5 &#x3bc;m, Part A not comprising a polyacid in an amount above about 1 wt. %, wt. % with respect to the weight of Part A, Part B being a liquid and comprising a polyacid in an amount above about 30 wt. %, water, a complexing agent, wt. % with respect to the weight of Part B. The invention also relates to a process of producing a hardenable or hardening composition and use thereof in the dental field.

Glass ionomer cement, process of production and use thereof

The present invention is directed to compositions containing one or more polymerizable bisphosphonic acids and optionally one or more additional polymerizable components.

Compositions including polymerizable bisphosphonic acids and methods

The invention relates to a composition which is self-adhesive to the hard tooth tissue, comprising: (A) 5 to 75 percent by weight of one or more mono or higher functional ethylenically unsaturated compounds which additionally have an acid functional group, wherein one of said compounds has a P&#x2014;OH group, for instance a phosphoric, phosphonic or phosphinic acid group; (B) 2 to 50 percent by weight of one or more mono or higher functional ethylenically unsaturated compounds without any acid functional group; (C) 22.8 to 85 percent by weight of filling material(s), comprising at least one filling material that may react with component (A) in the sense of causing a ion exchange, neutralization, salt formation and/or chelate formation reaction; (D) 0.1 to 8 percent by weight of one or more initiators and optionally activators; (E) 0.1 to 20 percent by weight of further additives, for example, modifiers, wherein the weight ration in % of component (A) relative to component (B) ranges from 21 to 90: 10 to 79.

Self-adhesive dental materials

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 invention relates to dental compounds that contain at least one polyacid or at least one polyacid and at least one salt of at least one polyacid. The polyacids used have at least one branch point in the polymer structure and are water-soluble and not cross-linked and their repeat units consist to at least 80 mole % of acrylic acid segments.

Use of branched polyacids in dental compounds

The invention relates to the use of ions of weakly basic oxides as linking ions for polyacids in cements, preferably polyelectrolyte cements. Suitable ions comprise elements of the scandium series, for example, Sc, Y, La, Ceand all subsequent tri- and tetra-valent lanthanides and the ions Mg, Zn, Ga, In. The application of said ions permits a regulation of the cement reaction without surface treatment of the glass powder.

Inert dental glass

The invention relates to a polymerizable, cross-linkable composition which contains: (A) 1-99.99 wt.-% of at least one conversion product of OH-functional (meth)acrylates with (i) oligomers from unsaturated rings or heterocyclic rings and maleic anhydride and/or with (ii) at least one ring-shaped polycarboxylic acid with at least 4 ring-carbon atoms and/or the anhydrides thereof with a saturated ring system, at least 4 carboxyl groups, and 0 or 1 heterocyclic ring atoms from the group N, O, S, whereby at least one carboxyl group and/or anhydride group of the above described substance groups is reacted with unsaturated polymerizable groups; (B) 0 to 98.99 wt.-% of one or more polymerizable, unsaturated organic compounds with at least one CH &boxH;C(R )&mdash;COO-group, whereby R10 represents H or methyl; (C) 0.01 to 5 wt.-% initiators and optional activators; (D) 0 to 90 wt.-% common solvents; (E) 10 to 90 wt.-% common fillers, pigments, thixotropy auxiliary agents, softening agents, diluting agents, rigidifying monomers, free-radical scavengers, stabilizing agents, and other auxiliary agents. The given wt.-% refers to the sum of all components (A) to (E). The composition is suited for bonding, casting or coating substrates and is especially suited as dental coupling agents, dental filling materials, dental cements, or dental sealers in the fields of dentistry and dental technology.

Polymerizable composition and the application thereof as a coupling agent

A dental impression composition comprises a polyether derivative functionalized via the hydroxyl groups of a polyether polyol with groups such as aziridine, epoxide and unsaturated substituents including (meth)acrylic, allyl, vinyl, vinyl ether or maleate groups, wherein the level of cyclic oligomeric polyethers is less than 5.0 weight percent.

Dental impression composition on functionalized polyethers

Growing community of inventors

Andechs-Frieding, Germany

Markus Mikulla