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US 8,133,831 B2Granted
Slip for the preparation of dental ceramics by a hot-melt inkjet printing process
AssigneeIvoclar Vivadent AG
InventorsJurgen Laubersheimer, Gianluca Zappini, Volker M. Rheinberger
Life of this patent
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Abstract
Slip for use in a hot-melt inkjet printing process which contains (A) ceramic particles, (B) wax and (C) at least one radically polymerizable monomer, and use of the slip to prepare dental restorations. Furthermore, a process for the preparation of a green compact is described, in which the slip is molded in layers to the geometrical shape of the green compact and subjected to a radical polymerization in order to obtain a cured green compact.
Claims13
A slip for use in a hot-melt inkjet printing process, comprising:
- (A) 25 to 45% by vol. ceramic particles,
- (B) 25 to 50% by vol. wax having a melting point in the range from 40 to less than 80° C.,
- (C) 10 to 40% by vol. one or more polymerizable monomers, and further comprises
- (D) 0.001 to 3% by vol. initiator for radical polymerization, and optionally
- (E) 0.1 to 15% by vol. further additives
- in each case relative to the total composition of the slip, the slip having a solid paste-like to solid consistency at 20° C. and being printable at a temperature within the range from 60° C. to 140° C., wherein component (B) comprises a petrochemical wax.
3 more elements
A slip for use in a hot-melt inkjet printing process, comprising:
- (A) 25 to 45% by vol. ceramic particles,
- (B) 25 to 50% by vol. wax having a melting point in the range from 40 to less than 80° C.,
- (C) 10 to 40% by vol. one or more polymerizable monomers which are solid at 20° C., and further comprises
- (D) 0.001 to 3% by vol. initiator for the radical polymerization, and optionally
- (E) 0.1 to 15% by vol. further additives
- in each case relative to the total composition of the slip, the slip having a solid paste-like to solid consistency at 20° C. and being printable at a temperature within the range from 60° C. to 140° C., wherein component (B) comprises a petrochemical wax.
3 more elements
Dependencies are inferred from the claim text.