3m Espe Ag

Thera Patent Gmbh & Co Kg Gesellschaft Fur Industrielle Schutzrechte

Espe Dental Ag

Espe Stiftung & Co. Produktions- Und Vertriebs Kg

Thera Patent Gmbh & Co. Kg

3m Deutschland Gmbh

Thera Patent Gmbh & Co.

Espe Stiftung & Co. Produktion- Und Vertriebs Kg

Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle

Kg Gesellschaft Fur Industrielle Schutzrechte

Thera Patent Gmbh & Co. Kg Gesellschaft Fur

Erich Wanek

Oswald Gasser

Gunther Eckhardt

Joachim Zech

Peter Bissinger

Rainer A Guggenberger

Klaus Ellrich

Guenther Lechner

Gunther Lechner

Reinhold Nowak

Thomas Klettke

Peter Jochum

Bernd Gangnus

Klaus-Peter Stefan

Werner Zollner

Cornelia Führer

Gotz Geyer

Jan Helms

Adrian S Eckert

Wolf-Dietrich Herold

Ingo W Wagner

Werner Schmitt

Markus Mikulla

Peter Koran

Johann Fetz

Bernd Kuppermann

G&uuml;nther Lechner

Ursula Somnitz

Manfred Holupirek

Peter Roas

Andreas Rombach

Johann Bauer

Klaus Wilhelm

Günther Lechner

The invention relates to catalyst components, containing:

Catalyst constituent

The invention relates to preparations based on aziridino polymers and comprising monofunctional aziridines and to the use thereof in producing dental materials, especially impression materials.

Preparations based on aziridino polyethers and the use thereof

Mixtures of chain-extended N-alkylaziridino prepolymers are disclosed herein. The disclosed mixtures of chain-extended N-alkylaziridino prepolymers can be used in combination with additional materials to make curable formulations that can be used, for example, as dental materials such as impression compounds.

N-alkylaziridine prepolymers as a dental material

The invention relates to a two-component addition-cured silicon impression compound, comprising the following when both components are mixed: (a) between 1 and 35 wt. % of at least one organopolysiloxane comprising at least two unsaturated groups in the molecule; (b) between 1 and 10 wt. % of at least one organohydrogenpolysiloxane comprising at least two SiH groups in the molecule; (c) between 0.00005 and 0.05 wt. % of at least one platinum catalyst, calculated as elementary platinum; (d) between 4 and 10 wt. % of at least one liquid paraffin or at least one white mineral oil, or of a mixture of at least one liquid paraffin and at least one white mineral oil; (e) between 50 and 90 wt. % of at least one filler, each respective percentage relating to the total weight of the silicon impression compound. According to the invention, one of the components before being mixed with the other component has a Brookfield viscosity ranging between 800 and 2000 Pa*s. The invention is characterized in that the silicon impression compound, when mixed, has a consistency stipulated by ISO 4823 of less then or equal to 35 mm.

Silicone-based dental impression compounds

The invention relates to preparations, containing

Polyether based preparations and the use thereof

Arizidinosilicones of the general formula (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 alkaryl, C7-C15 aralkyl, C3-C12 cycloalkyl and these groups can be substituted with Cl or F partially, completely or in a mixed manner and/or may contain 0 to 5 heteroatoms selected from O, N, S, R2 represents a group of the selection of R1 and/or R4, and R3 represents SiRl3 or SiR12R4, and wherein R4 represents formula (2), and A represents an (n+1) radical saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that includes 1 to 18 carbon atoms, B is selected from O, S, NR1, D is selected from C(O)O, C(O)NR1, C(O), C(O)C(O), C(O)(CH2)m(C(O), C(S)NR1, CH2, E represents a diradical saturated or unsaturated, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that includes 0 to 18 carbon atoms, a is 0 or 1, f is an integer from 2 to 1000, n, m is an integer from 1 to 10, and x, y, z each represents 0 or an integer, the sum of which should range between 1 and 10000, with the proviso that, if x is larger 0, y or z is smaller or equal x, preferably smaller or equal 0.05 times x, and especially preferred 0.02 times x. The invention also relates to the use of arizidinosilicones.

Aziridinosilicones and the use thereof

The invention relates to elastomer materials based on N-alkylaziridino compounds with a base component which contains the aziridino compounds and with a catalyst component which contains at least one acid-acting compound, both components being mixed before use, characterized in that, as acid-acting compound of the catalyst component, one or more boric acid complexes are used which can be obtained by reaction of boric acid and/or a boric acid derivative with at least one OH-functional compound, the OH functions being able to be present wholly or partly protected, and this reaction being carried out either as an upstream reaction between boric acid and/or a boric acid derivative and at least one such OH-functional compound or during or after the preparation of the catalyst component or by mixing the catalyst component with the base component which then contains at least one OH-functional compound. The elastomer materials are preferably used as dental impression materials, bite-registration materials and doubling materials.

Two-constituent elastomer materials based on alkyl aziridine comprising a catalyst constituent that contains a boric acid complex

N-alkyl aziridine block copolymers of the general structure (1), wherein R1 represents H, C-Calkyl, C-Calkenyl, C-Calkinyl, C-Caralkyl C-Caralkyl, or C-Ccycloalkyl and these groups can be substituted with C1 or F partially, completely or in a mixed manner and/or may contain 0 to 5 heteroatoms selected from O, N, S; R2 represents a group selected from R1 and/or R4; R3 represents SiR1or SiR1R4, wherein R4 represents a group of the general formula (2), wherein A represents an (n+1) radical saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that comprises 1 to 18 carbon atoms; B is selected from O, S, NR1; D is selected from C(O)O, C(O)NR1, C(O), C(S)NR1, CH; E represents a diradical saturated or unsaturated, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S, and that comprises 0 to 18 carbon atoms; Q represents and &#x3b1;, &#x3c9;-radical polyether chain of the general formula (3): &#x2014;[O&#x2014;CH]&#x2014;, wherein g is 2 to 20; h is 1 to 1000; a is 0 or 1; f is an integer from 2 to 1000; n is an integer from 1 to 10; and x, y, z each represents 0 or an integer, the sum of which should range between 1 and 10000, with the proviso that if x is larger 0, y or z is smaller or equal x. There are many uses of these copolymers.

N-alkyl aziridine block copolymers and the uses thereof

Silicon-based impression compounds with improved non-sag properties

The invention relates to preparations with improved curing behavior, which are characterized in that they contain 0.0005 to 50 wt. % of soluble and/or fine-particle organic and/or inorganic alkaline earth and/or alkali metal compounds. The preparations according to the invention may be used for bonding, sealing, casting and coating substrates, also in medical dental and technical dental preparations, and for making impressions of articles and, more particularly, for making dental impressions.

Storage-stable cationcally polymerized preparations with improved hardening characteristics

Impression compositions comprising triglycerides

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

The invention relates to impression compositions based on vulcanizable pother materials, which are characterized in that the ready-mixed pastes comprise

A monophase silicone impression composition which crosslinks by an addition reaction, includes the following components:

Silicone-based impression material

An addition-crosslinking polyether impression material is described which ntains

Addition-crosslinking polyether impression material

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Kaufering, Germany

Erich Wanek