Curable radiopaque substance
AssigneeMerz Dental GmbH
InventorSebastian Pflesser
Life of this patent
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Abstract
A curable and radiopaque substance, a material that can be produced from same via polymerisation, a method for producing the curable substance and the cured material, and the use of the curable substance or the cured material are disclosed. The curable substance or the cured material can be used in, inter alia, orthopaedics as so-called bone cement, in particular as a tooth filling material, dental cement, dental lining material, flowable composite material (flow material) etc., as well as in diagnostic radiology. The invention also relates to the use of the curable substance generally as a construction material in an additive manufacturing process using a digital data model.
Claims33
A method for producing a curable dental material, comprising the following steps:
- (i) producing or providing starting materials comprising (a) one or more polymerizable monomer(s), (b) one or more strontium, zirconium, lead, barium, bismuth or rare earth compound(s) which is/are soluble in the monomer or in the monomer mixture, (c) one or more curing initiator(s) and, (d) one or more auxiliaries,
- or
- producing or providing intermediates derived from the starting materials;
- and
- (ii) mixing of the starting materials produced or provided as per step (i) or the intermediates produced or provided as per (i) to result in each case in the curable dental material,
- wherein the auxiliary is an aliphatic, aromatic and/or aralkyl carboxylic acid.
A method for producing a curable dental material, comprising the following steps:
- (i) producing or providing starting materials comprising (a) one or more polymerizable monomer(s), (b) one or more strontium, zirconium, lead, barium, bismuth or rare earth compound(s) which is/are soluble in the monomer or in the monomer mixture, (c) one or more curing initiator(s) and, (d) one or more auxiliaries,
- or
- producing or providing intermediates derived from the starting materials;
- and
- (ii) mixing of the starting materials produced or provided as per step (i) or the intermediates produced or provided as per (i) to result in each case in the curable dental material,
- wherein the auxiliary is a complex former capable of forming a complex with an ion of the rare earth metals, the complex former having an acetylacetone moiety or an acetylacetonate moiety.
Dependencies are inferred from the claim text.