Kulzer Gmbh

Heraeus Kulzer Gmbh

Heraeus Precious Metals Gmbh & Co. Kg

Heraeus Kutzer Gmbh

Alfred Hohmann

Klaus Ruppert

Stephan Dekert

Heiko Specht

Andreas Reisinger

Andreas Utterodt

Michael Eck

Andreas Grundler

Kurt Reischl

Jutta Schneider

Nelli Schönhof

Matthias Schaub

Christine Diefenbach

Susanne Busch

Alexander Schnack

Andrea Hambach

A polymerisable radiation-curable composition comprising:

Radiation-curable composition for use in rapid prototyping or rapid manufacturing methods

A polymerisable radiation-curable, in particular UV-Vis-, UV- or Vis-curable, composition comprising:

A polymerisable, radiation curable composition comprising (i) monomers comprising: 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 m, and/or d) a fracture work >250 J/mDIN EN ISO 20795-2.

Radiation-curable composition for use in rapid-prototyping or rapid-manufacturing methods

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.

The subject matter of the invention is an autopolymerisable 2-component prosthetic base material, a kit containing the material as well as a method for its production comprising at least one liquid monomer component (A), and at least one powdered component (B), wherein the prosthetic material in component (A) besides methylmethacrylate contains at least one N-alkyl-substituted acryloyloxy carbamate having a molecular mass of less than or equal to 250 g/mol, optionally at least one at least di-functional urethane (meth)acrylate, a di-, tri-, tetra- or multi-functional monomer not being urethane (meth)acrylate, and optionally polymeric particles having a primary particle size of less than 800 nm, and the powdered component (B) comprises polymeric particles having at least three different particle size fractions, and both (A) and (B) contains at least one initiator or at least one component of an initiator system for autopolymerisation.

High-impact, transparent prosthesis material having a low residual MMA content

Methods produce a three-dimensional dental block of material from a dental, polymerizable material. The methods include at least: transferring the polymerizable dental material into a radiolucent three-dimensional casting or press mold; irradiating the polymerizable dental material substantially from all sides with light in the UV/Vis spectral region forming polymerized outer surfaces of the dental material in the form of a solid outer shell of the dental material, wherein the shell is present in the defined three-dimensional geometry of the material whilst the inner region of the material is not polymerized or partially polymerized; heating the material with solid shell being present in defined three-dimensional geometry, to 60&#xb0; C. to 150&#xb0; C. for at least 90 minutes; and obtaining a dental, polymerized block of material having defined three-dimensional geometry.

Method for producing large polymerised dental material blocks

The subject matter of the invention is an autopolymerisable two-component prosthetic base material and a method for its production comprising A) at least one liquid monomer component, and B) at least one powdered component, whereby the prosthetic material comprises in components (A) and/or (B) (i) at least one initiator or one initiator system for autopolymerisation, (ii) core-shell particles modified by an elastic phase, and (iii) at least one urethane (meth)acrylate.

Auto-polymerizable prosthetic material and polymerized, fracture-tough prosthetic material with increased colour stability

The subject matter of the invention is a three-dimensional molded body, in particular a milling blank, made of a polymerizable prosthetic material, which is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture toughness of greater than or equal to 1.9 Mpa&#xb7;mand a fracture work of greater than or equal to 900 J/m. The milling blank preferably comprises core-shell particles modified by an elastic phase and is optionally based on a content of urethane (meth)acrylate polymerized into the polymer. Moreover, a subject matter of the invention is the use of the milling blanks for the production of at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or of orthodontic appliances and instruments in medical field.

Mill blanks based on a polymerized, fracture-tough prosthesis material

The invention relates to a method for the production of an adhesive bond between (a) the surface of dental subframes based on high-performance polymers, and (b) dental composites, by A at least creating retentive anchoring by means of mechanical pre-treatment of the surface of each subframe; B application of a low viscous, or free-flowing adhesive agent containing a monomer mixture of polymethyl methacrylate, methyl methacrylate, at least one bifunctional methacrylate-based cross-linking monomer, initiator(s), and optionally stabilizers and other additives, including

Dental adhesive agent for high-performance polymers

One aspect relates to a method for connecting a housing of an active implantable medical device to a head part, whereby an uncured joining agent that is arranged, at least in part, between the housing and the head part is transitioned into a cured joining agent to attain a firmly bonded connection. In one embodiment, the uncured joining agent includes monomers of a (meth)acrylic acid alkyl ester, and the cured joining agent includes at least one polymer of the (meth)acrylic acid alkyl ester.

Active implantable device

For composite materials having a total filler content of 80 to 95% by weight, containing

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Schmitten, Germany

Alfred Hohmann