Abstract: The invention relates to catalyst components, containing: (A) at least one Brönsted acid, (B) water, (C) at least one antacid-acting compound from the group consisting of the oxides, hydroxides, carbonates and/or carboxylates of the elements aluminum, chromium, copper, germanium, manganese, lead, antimony, tin, tellurium, titanium and/or zinc, (D) optionally at least one inert diluent, (E) optionally at least one modifier, the mixture of one part by weight of the catalyst component with three parts by weight bisaziridino polyether with an average imino equivalent mass of 3100, preparable from a polyetherdiol which comprises ethylene oxide and tetrahydrofuran units in the molar ratio 1:3.5 solidifying within 0.5 to 20 minutes to a solid elastomer material which has a shore A hardness of at least 20 according to DIN 53505 after 24 hours' storage time at room temperature.

Abstract: 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.

Abstract: The invention relates to a measuring device which is used to determine the end of the processing time of hardenable materials, especially dental molding materials, comprising a display unit and a sensor unit which detects a modification of at least one of the rheological properties of the material.

Abstract: The invention relates to a measuring device which is used to determine the end of the processing time of hardenable materials, especially dental moulding materials, comprising a display unit and a sensor unit which detects a modification of at least one of the rheological properties of the material.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to preparations, containing (A) 30 to 56 wt.-% aziridino polyethers with a cyclic polyether content lower than 5.0 wt.-%; (B) 30 to 45 wt.-% compounds which effect a softening of the cured dental materials; (C) 10 to 15 wt.-% filler; (D) 4 to 10 wt.-% further active ingredients; with the provisos that the weight ratio between constituents (A) and (C) to the compounds of constituent (B) is 1.2 to 2.1; constituent (B) consists of compounds with molar masses lower than 500 g/mol (B1) and of trisacylesters of glycerol of non-animal origin with molar masses between 500 to 2000 g/mol (B2) as well as of compounds with molar masses greater than 2000 g/mol (B3) and the weight ratio between (B1) and (B3) is 1:0.8 to 1:2.3, as well as their use.

Abstract: 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

Abstract: 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.

Abstract: N-alkyl aziridine block copolymers of the general structure (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 aralkyl C7-C15 aralkyl, or C3-C12 cycloalkyl 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 SiR13 or SiR12R4, 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, 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 comprises 0 to 18 carbon atoms; Q represents and ?, ?-radical polyether chai

Abstract: The invention relates to a mixture of elongated N-alkylaziridine prepolymers of general formula (I) wherein n represents a whole number between 1 and 50; R1 represents H or C1 to C12 alkyl; X represents a bivalent, saturated or unsaturated, linear, branched, cyclic or polycyclic hydrocarbon radical which can contain between 0 and 5 heteroatoms from the group 0, NR1, S, which contains a total of between 1 and 50, preferably between 2 and 30, and ideally between 2 and 20 C atoms, and which comprises a group selected from —NR1-(C═O)—O—, —NR1-(C═O)—NR1-, —(C═O)—O—, —(C═O)—S—, which represents that covalent link with the polymer radical Z; Z represents a bivalent prepolymer radical having number-average molar masses of between 1,500 and 45,000 g/mole, from the group comprising polyester, polycarbonate, polyolefins, polysiloxane and polyethers; E represents —X′-A-X′—; A represents a double radical, saturate

Abstract: 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.

Abstract: The invention relates to a measuring device which is used to determine the end of the processing time of hardenable materials, especially dental moulding materials, comprising a display unit and a sensor unit which detects a modification of at least one of the rheological properties of the material.

Abstract: N-alkyl aziridine block copolymers of the general structure (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 alkaryl, C7-C15 aralkyl or C3-C12 cycloalkyl 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 SiR13 or SiR12R4, 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, 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 comprises 0 to 18 carbon atoms; Q represents and &agr;, &ohgr;-radical

Abstract: 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 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 of the selection of R1 and/or R4, and R3 represents SiR13 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,

Abstract: The invention relates to silicone-based addition-crosslinking impression material, containing (a) organopolysiloxanes with at least two unsaturated groups in the molecule, (b) organohydrogen polysiloxanes with at least three Si—H groups in the molecule, (c) optionally, organopolysiloxanes without reactive groups, (d) platinum catalyst, (e) optionally, hydrophilizing agent, (f) filler, (g) optionally, further customary additives, auxiliaries and dyes, characterized in that it contains, as component (h), polyalkylene oxide and/or its derivatives with an average molar mass of Mw>1000 at the rate of 0.001 to 1.0 wt.-% relative to the total mass of the cured material.

Abstract: The invention relates to catalyst components, containing:

Abstract: 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.

Abstract: The invention relates to preparations, containing