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US 8,026,295 B2Granted
Dental composition with improved light stability
AssigneeDENTSPLY International Inc.
InventorsUwe Walz, Joachim E. Klee
Life of this patent
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Abstract
Dental composition having an improved light and thermal stability, including a mixture of at least a polymerizable resin, at least a polymerizable monomer, at least a polymerization initiator and/or a sensitizer and stabilizer, and at least an organic and/or inorganic filler and pigments in a content of 0 to 90 percent and at least one of the stable radicals.
Claims10
Dental composition having an improved light and thermal stability, comprising a mixture of
- (i) at least one polymerizable resin
- (ii) at least one polymerizable monomer
- (iii) at least one polymerization initiator and/or a sensitizer and stabilizer
- (iv) at least one organic or inorganic filler and pigments in a content of 0 to 90 percent
- (v) and at least one of the stable radicals of formulas 1, 3, 4 or 5
- wherein
- R0 denotes a C1 to C18 alkylene,
- R1, R2, R3 and R4 denotes a C1 to C18 alkylene,
- wherein X is
- wherein Y is
- wherein Z is
- wherein
- R5 is a difunctional C1 to C18 alkylene, C5 to C18 cycloalkylene, or C5 to C18 arylene or heteroarylene,
- R6 is a difunctional C1 to C18 alkylene, C5 to C18 cycloalkylene, or C5 to C18 arylene or heteroarylene,
- R7 is difunctional C1 to C18 alkylene, C5 to C18 cycloalkylene, or C5 to C18 arylene or heteroarylene,
- R8 is H, a monofunctional C2 to C30 alkylene, C5 to C30 cycloalkylene, or C5 to C30 arylene or heteroarylene, and
- R9 is a monofunctional C2 to C30 alkylene, C5 to C30 cycloalkylene, or C5 to C30 arylene or heteroarylene,
- wherein
- n, m and o are positive integers.
16 more elements
Dependencies are inferred from the claim text.