Abstract: An object of the invention is a polymerizable composition comprising. 0.01 to 90 wt.-% of at least one inorganic filler component, 5 to 99.97 wt.-% comprising at least two urethane acrylates, wherein one urethane acrylate corresponding to formula I and the second urethane acrylate having at least one bifunctional thiolurethane group and at least one olefinic group, and mixtures of urethane acrylates comprising these, 0.01 to 25 wt.-% of at least one di-, tri-, tetra- or multi-functional monomer having at least one ether group, thioether group, an at least tri-functional triester and/or a di-functional diester, the diester being selected from tricyclodecanedimethanol dimethacrylate and tricyclodecanedimethanol diacrylate or mixtures of these di-, tri-, tetra- or multi-functional monomers, 0.01 to 10 wt.-% of at least one initiator, an initiator system, and optionally at least one stabilizer and optionally at least one pigment, wherein the total composition of the polymerizable composition is 100 wt.-%.

Abstract: The object of the invention is a thermoplastic composition comprising A) 5 to 5000 parts by weight of poly(dialkylphenylene) ether with alkyl comprising 1 to 6 carbon atoms, B) 100 parts by weight of thermoplastic styrene polymer, C) 0.001 to 1500 parts by weight of core-shell particles, wherein the shell of the core-shell particles comprises thermoplastic polymers, in particular thermoplastic acrylate-based polymers comprising homo- and copolymers, and the core comprises elastomers, in particular elastic polymers comprising homo- and copolymers or mixtures of polymers, whose TG is below 0° C., and D) 0 to 2550 parts by weight of inorganic filler.

Abstract: A polymerisable radiation-curable, in particular UV-Vis-, UV- or Vis-curable, composition comprising: (i) monomers, wherein the monomers comprise: (a.1) at least one triacrylate derived from 1,3,5-tris(?-hydroxyalkyl) isocyanurate, wherein the hydroxyalkyl residue comprises 1 to 8 C-atoms and may be linear, branched and/or cyclic, and (a.2) at least one di-functional monomer, not being a urethane (meth)acrylate, and (ii) at least one further component, comprising: at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region.

Abstract: Self-adhesive, radiation-curable fissure sealants and methods comprise a white pigment, A) a monomer component comprising a) at least one difunctional urethane (meth)acrylate, b) at least one hydrophilic alkylene oxide-based difunctional (meth)acrylate-based crosslinker, c) a mixture of acidic monomers of an olefinic carboxylic acid and/or of an olefinic carboxylic anhydride in combination with an olefinic acidic monoester of a phosphoric acid and/or an olefinic acidic monoester of a thiophosphoric acid, and d) an initiator and/or an initiator system, each having an absorption maximum of 420 to 550 nm, optionally with a co-initiator, and B) a filler component comprising at least one dental glass, wherein A) the monomer component and B) the filler component are present in a mass ratio of 60:40 to 100:0 in the fissure sealant, and wherein the total composition of the fissure sealant comprises 100 wt.-%.

Abstract: Mixing capsules and methods are provide and comprise a first chamber to receive a composition A and a second chamber to receive a composition B, wherein the first chamber and the second chamber are arranged rotatably about the longitudinal axis of the mixing capsule, the first chamber comprising a first opening, the second chamber comprising a second opening, the first opening and the second opening being arranged perpendicularly to the longitudinal axis and plan-parallelly to each other and/or perpendicularly spaced, the first opening and the second opening being arranged incongruently to each other in a storage position, the first opening and the second opening being arranged congruently to each other in a handling position.

Abstract: A polymerisable, radiation curable composition comprising (i) monomers comprising: (a) at least one acrylic acid ester having an additional carboxy group, acrylic acid ester having at least one additional anhydride group of carboxy groups, and/or derivative of the afore-mentioned acrylic acid esters, (b) at least one di-functional acrylate having a bivalent alicyclic group and/or at least one di-functional methacrylate having a bivalent alicyclic group, and (c) optionally, at least one disubstituted 4,4?-di(oxabenzene) dialkyl methane of formula I, and (ii) at least one further component comprising: (d) at least one photoinitiator for the UV and/or Vis spectral region or a photoinitiator system. The composition is suitable for producing dental prosthetic parts, orthopaedic appliances or dental pre-forms, having a) a flexural strength 50 MPa, b) an E-modulus ?1500 MPa, c) a bending fracture ?1.1 MPa m1/2, and/or d) a fracture work >250 J/m2 DIN EN ISO 20795-2.

Abstract: Devices for the layer-by-layer generative production of at least one three-dimensional shaped part from at least two radiation-curable compositions are provided and comprise at least one radiation source and/or beam deflection device and at least one pressure trough with at least two process chambers openable at the top, wherein the at least two process chambers are arrangeable above the radiation source or a radiation deflection device, so that the curable compositions in the process chambers are exposable to radiation from below via the radiation source and/or the radiation deflection device. The devices further comprise a building platform having an underside which is exposable to rays from the radiation source, wherein the bottom of the pressure trough comprises at least partially a transparent material.

Abstract: A polymerisable radiation-curable composition comprising: (i) monomers, comprising at least (a) a first monomer having a TG (glass-transition point) of the homopolymer of said first monomer? 120° C. and at least (b) a second monomer having a TG (glass-transition point) of the homopolymer of the second monomer? 100° C., wherein at least one of the at least one first monomer or of the at least one second monomer has an alicyclic group, and comprising (ii) at least one further component, comprising at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region. Also disclosed is a blank in the form of a three-dimensional moulded body of a polymerised composition, in particular a radiation-cured composition, for producing 3D moulded bodies, dental prosthetic parts, orthopaedic appliances or dental pre-forms in a rapid prototyping, rapid manufacturing, or rapid tooling method.

Abstract: The invention relates to a rotor shaft for a dynamic mixer, in particular a dental dynamic mixer, for mixing low to high viscous components, comprising a mixing area and a connection geometry adjoining the mixing area, the mixing area comprising a central shaft having a distal end and a proximal end abutting the connection geometry, and having at least one worm thread, in particular the rotor shaft has at least two mixing sections, a first mixing section comprising at least two mixing blades radially oriented on the surface of the central shaft and a second mixing section comprising at least one worm thread having spirally running thread flanks, the spirally running thread flanks peripherally entwining the surface of the central shaft. Furthermore, the invention relates to a dynamic mixer, in particular a dental dynamic mixer, comprising the rotor shaft, as well as its use for mixing low to high viscous components.

Abstract: Dynamic mixers and methods have a chamber part with a discharge opening, a mixing chamber, a closing part, first and second inlet openings, and a centrical opening. The chamber and closing parts mount against each other in a rotationally symmetric manner and the closing part has substantially parallel planes, wherein a first plane averts a rotor, a second plane faces the rotor, a first inlet opening and a passage opening form a linear duct, and the substantially parallel planes form a feeding duct. Dimensions of the feeding duct are variable depending on a relative rotationally symmetric position of the chamber and closing parts, wherein the dimensions include a length, a width and/or height, and a partial circle is formable by the feeding duct and may enclose an angle of 20-170 degrees depending on the relative rotationally symmetric position of the chamber and closing parts.

Abstract: Self-adhesive, radiation-curable fissure sealants and methods comprise a white pigment, A) a monomer component comprising a) at least one difunctional urethane (meth)acrylate, b) at least one hydrophilic alkylene oxide-based difunctional (meth)acrylate-based crosslinker, c) a mixture of acidic monomers of an olefinic carboxylic acid and/or of an olefinic carboxylic anhydride in combination with an olefinic acidic monoester of a phosphoric acid and/or an olefinic acidic monoester of a thiophosphoric acid, and d) an initiator and/or an initiator system, each having an absorption maximum of 420 to 550 nm, optionally with a co-initiator, and B) a filler component comprising at least one dental glass, wherein A) the monomer component and B) the filler component are present in a mass ratio of 60:40 to 100:0 in the fissure sealant, and wherein the total composition of the fissure sealant comprises 100 wt.-%.

Abstract: A self-adhesive, radiation-curable, dental material comprising A) a monomer component comprising a difunctional urethane (meth)acrylate, hydrophilic alkylene oxide-based di-functional (meth)acrylate-based crosslinkers, at least one acidic monomer of an olefinic acidic monoester of a phosphoric acid and/or an olefinic acidic monoester of a thiophosphoric acid optionally in combination with an olefinic carboxylic acid and/or olefinic carboxylic acid anhydrides and an initiator and/or an initiator system having an absorption maximum of from 420 to 550 nm and optionally having a co-initiator and optionally B) a filler component comprising at least one dental glass, wherein in particular A) the monomer component and B) the filler component are present in a mass ratio of a) 100:0 to 60:40 in fissure sealants or b) from 59:41 to 20:80 in composite materials, and wherein the total composition of the fissure sealant or composite material comprises 100 wt.- %.

Abstract: The invention relates to correction factors, in particular digital correction factors or printed correction factors, as translation (x,y,z) data and/or as data of the rotation of at least one real prefabricated prosthetic tooth up to a plurality of real prefabricated prosthetic teeth in a mounting for material-ablating processing of the prosthetic teeth, the correction factors preferably being assigned to the mounting as bar code or as quick-response code for use in a digitally controlled material-ablating process, the mounting having at least one fixed real prefabricated tooth. The invention also relates to the mounting with assigned digital correction factors as well as to a method for determining the digital correction factors of the at least one real prefabricated prosthetic tooth.

Abstract: Mixing elements for static mixer utilizing mixing low- to high-viscosity components are provided and comprise a planar central part extending along a longitudinal axis L and having front and rear faces, wherein arranged on the front and/or rear face are at least two flow-influencing elements that each surround at least one through-opening located in the central part and that are each in the form of prism lateral surfaces that are substantially perpendicular to the front and/or rear face, wherein pairs of the elements overlap or are connected to one another at a lateral edge. Static mixers comprising the mixing element and methods for mixing low- to high-viscosity components with the static mixers are also provided.

Abstract: Devices for the layer-by-layer generative production of at least one three-dimensional shaped part from at least two radiation-curable compositions are provided and comprise at least one radiation source and/or beam deflection device and at least one pressure trough with at least two process chambers openable at the top, wherein the at least two process chambers are arrangeable above the radiation source or a radiation deflection device, so that the curable compositions in the process chambers are exposable to radiation from below via the radiation source and/or the radiation deflection device. The devices further comprise a building platform having an underside which is exposable to rays from the radiation source, wherein the bottom of the pressure trough comprises at least partially a transparent material. Additionally, processes for producing at least one three-dimensional shaped part from at least two different curable compositions are provided.

Abstract: A polymerisable radiation-curable composition comprising: (i) monomers, comprising at least (a) a first monomer having a TG (glass-transition point) of the homopolymer of said first monomer ?120° C. and at least (b) a second monomer having a TG (glass-transition point) of the homopolymer of the second monomer ?100° C., wherein at least one of the at least one first monomer or of the at least one second monomer has an alicyclic group, and comprising (ii) at least one further component, comprising at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region. Also disclosed is a blank in the form of a three-dimensional moulded body of a polymerised composition, in particular radiation-cured composition, for producing 3D moulded bodies, dental prosthetic parts, orthopaedic appliances or dental pre-forms in a rapid prototyping, rapid manufacturing, or rapid tooling method.

Abstract: The invention relates to a rotor shaft for a dynamic mixer, in particular a dental dynamic mixer, for mixing low to high viscous components, comprising a mixing area and a connection geometry adjoining the mixing area, the mixing area comprising a central shaft having a distal end and a proximal end abutting the connection geometry, and having at least one worm thread, in particular the rotor shaft has at least two mixing sections, a first mixing section comprising at least two mixing blades radially oriented on the surface of the central shaft and a second mixing section comprising at least one worm thread having spirally running thread flanks, the spirally running thread flanks peripherally entwining the surface of the central shaft. Furthermore, the invention relates to a dynamic mixer, in particular a dental dynamic mixer, comprising the rotor shaft, as well as its use for mixing low to high viscous components.

Abstract: The invention relates to a mixing capsule (1) comprising a housing in the form of a cylinder, characterised in that the mixing capsule has an applicator (2) at the top surface (15) of the cylinder and an auxiliary capsule (3) at the base surface of the cylinder being mounted displaceably in the direction of the longitudinal axis, the auxiliary capsule (3) being mounted displaceably in the direction of the longitudinal axis in a cylindrical inside pipe (4) and/or a mounting of the mixing capsule (1), the housing of the mixing capsule comprising an outer housing sleeve (5) and an inner housing sleeve (6) being mounted rotatably against each other and displaceably into each other, the auxiliary capsule (3) and the cylindrical inside pipe (4) and/or the mounting taking a first partial volume of the internal volume (9) of the mixing capsule (1) in a first position of the inner housing sleeve (6), the mixing capsule (1) having a second partial volume of the internal volume (9) being independent from the auxiliary c

Abstract: The invention relates to a retraction paste comprising a composition of i) 10 to 25% by weight at least one astringent compound, ii) 50 to 75% by weight fillers, iii) 10 to 35% by weight protic liquid, and iv) 0 to 10% by weight pigments, dye and/or rheology additive, ii) the fillers comprising kaolinite and mica in the ratio of 4:1 to 1.5:1 and, the total composition of components i) to iv) in the retraction paste amounting to 100% by weight, a method for producing the retraction paste, a kit comprising a container with the retraction paste for single or repeated use, as well as a retraction paste as an agent for haemostasis.

Abstract: Disclosed is a two-component mixing capsule for intake and for mixing of two compositions with a capsule housing having a discharge spout at its front end, wherein the mixing capsule comprises a first mixing chamber and a second mixing chamber, wherein the two mixing chambers may be separated from each other for storage or for transport, by the first mixing chamber being rotatable into a first position in which the first mixing chamber is separated from mixing chamber, by a rotatably mounted handhold element, the rotational axis of which is approximately perpendicularly arranged to the longitudinal axis of the mixing capsule. The two mixing chambers form a common mixing chamber by rotating the first mixing chamber into a second position in which the central axes of the first and second mixing chamber are substantially coaxially arranged, wherein the composition may be discharged after mixing by attaching a squeezing piston.