3m Innovative Properties Company

3m Espe Ag

Solventum Intellectual Properties Company

Manfred Ludsteck

Rainer A Guggenberger

Joel D Oxman

Bruce R Broyles

Helmut Pauser

Reinhold Hecht

Gioacchino Raia

Kai U Claussen

Christoph H Thalacker

Karsten Dede

Adrian S Eckert

Thomas Luchterhandt

Markus Mikulla

Adrian T Jung

John W Dubbe

Li Yao

Henry Loll

Henry C Gydesen

Bernd Anich

Simone Jurjevic

Andrea Stippschild

Mareike Richter

Andrea Stippschild-Boxler

Hubert Rennschmid

Lilly Vogel

Vitore Hasanaj

Ahmad Shaaban

Silke D Mechernich

Dirk Albrecht

Joel David Oxman Oxman

Lingjie Tong

Simon Plugge

Silke Mechernich

The invention relates to a microcapsule comprising a hollow or porous core, the hollow or porous core being composed of a polymeric material and containing a component of a redox-initiator system, a shell, the shell being composed of a pH-sensitive material. The microcapsule can be used for formulating dental materials.

Microcapsule with a porous or hollow core and ph-sensitive shell and use thereof

The invention relates to a one-part dental adhesive composition comprising polymerizable component(s) with an acidic moiety as Component A, photo-initiator(s) as Component B1, transition metal ion component(s) as Component C, solvent(s) other than water as Component D1, a stabilizer as Component E, the stabilizer comprising a free radical moiety or being selected from anaerobic stabilizers, for use in a process of fixing a composite material to the surface of hard dental tissue, the composite material comprising a redox initiator system with an oxidizing agent and a reducing agent.

One-part dental adhesive composition for fixing dental composite materials

The present invention relates to a kit of parts comprising Part A and Part B, Part A comprising: ascorbic acid, component(s) comprising an ascorbic acid moiety or derivative(s) thereof, optionally polymerizable component(s) without acidic moieties, optionally polymerizable component(s) with acidic moieties, and optionally filler(s), Part B comprising polymerizable component(s) without acidic moieties, polymerizable component(s) with acidic moieties, transition metal component(s), organic peroxide(s), and optionally filler(s), The invention is also directed to a redox initiator system comprising ascorbic acid, component(s) comprising an ascorbic acid moiety or derivative(s) thereof, transition metal component(s), preferably comprising a copper or iron ion containing salt, organic peroxide(s), preferably comprising a hydroperoxide or di-peroxide. The kit of parts and redox initiator system are particularly useful in the dental field.

Two-component self-adhesive dental composition, process of production and use thereof

The invention relates to a kit of parts comprising Part A and Part B, Part A comprising: component(s) comprising an ascorbic acid moiety, stabilizer(s) selected from sulphite(s), phosphite(s) or mixtures thereof, optionally polymerizable component(s) without acidic moieties, optionally polymerizable component(s) with acidic moieties, and optionally filler(s), Part B comprising polymerizable component(s) without acidic moieties, polymerizable component(s) with acidic moieties, transition metal component(s), organic peroxide(s), and optionally filler(s). The invention is also directed to an initiator system comprising component(s) comprising an ascorbic acid moiety, stabilizer(s) selected from sulphite(s), phosphite(s) or mixtures thereof transition metal component(s), organic peroxide(s). The kit of parts and redox initiator system are particularly useful in the dental and orthodontic field.

Two-component self-adhesive dental composition, storage stable initiator system, and use thereof

The invention relates to a one-component self-adhesive composition for dental use comprising radically polymerizable component(s) with an acidic moiety as component A, radically polymerizable component(s) without an acidic moiety as component (B), an oxidizing agent comprising persulfate(s) as component (C), transition metal component(s) as component (D), photoinitiator system(s) as component (E), optionally non acid-reactive filler(s) as component (F), and optionally additive(s) as component (G).

One component self-adhesive dental composition, process of production and use thereof

This invention relates to polymerizable compositions comprising a salt of a barbituric acid derivative. The compositions are typically shelf-life stable and may be polymerized through mixing of an acidic component with the salt of a barbituric acid derivative.

Polymerizable compositions containing salts of barbituric acid derivatives

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 adhesive compositions that exhibit a significant decrease in polarity upon polymerization. More specifically, it relates to curable self etching dental adhesive compositions that can be applied to the tooth hard substance in one step and exhibit this decrease in polarity upon curing. In this respect a formulation is provided combining phosphoric acid esters bearing substituents with one ethylenically unsaturated moiety on the phosphorus atom and phosphoric acid esters bearing substituents with two or more ethylenically unsaturated moieties on the phosphorus atom.

Adhesive composition with decreased polarity upon polymerization

The invention relates to a redox initiator system which allows dental formulations to be cured in acidic medium by way of a free-radical polymerization and which ensures a high level of adhesion of the polymerizing composition to the hard substances of the teeth, namely enamel and, in particular, dentine. The redox initiator system comprises the following constituents:

Initiator system for acid dental formulations

Growing community of inventors

Geretsried, Germany

Manfred Ludsteck