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US 12,760,134 B2Granted
Curable composition with polymerizable monomers and fillers for additive manufacturing
AssigneeAlign Technology, Inc.
InventorsMatthew Durban, John Michael Riedesel, Peter Dorfinger, Yan Chen
Life of this patent
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Abstract
Disclosed herein are curable compositions containing a plurality of polymerizable monomers comprising at least 80 wt % of a crosslinker for additive manufacturing. The curable compositions comprise high-crosslinker content, and yield tough, lightweight polymeric materials suitable for dental appliances, including but not limited to aligners, attachment placement devices, incremental palatal expanders, dentures, crowns, etc.
Claims26
A curable composition for additive manufacturing, the curable composition comprising:
- a plurality of polymerizable monomers, which polymerizable monomers comprise at least 80 wt % of a crosslinker;
- and
- at least 10 wt % of a filler material,
- wherein the crosslinker comprises:
- a first crosslinker having the following structure (I):
- Y1—X1-L1-A-L2-X2—Y2, (I)
- wherein:
- A is a cycloalkylene, alkylenecycloalkylene, alkylenecycloalkylencalkylene heterocycloalkylene, arylene, heteroarylene, alkylenearylene or alkylenearylenealkylene group;
- L1 and L2 are independently an amide, ether, ester, carbonate, urethane or urea linkage;
- X1 and X2 are independently an alkylene or heteroalkene linker;
- and
- Y1 and Y2 are independently a polymerizable functional group, and
- a second crosslinker having the following structure (II):
- Y3—X3-L3-B-L4-X4—Y3, (II)
- wherein:
- B is a linear or branched alkylene or heteroalkylene group;
- L3 and L4 are independently an optional amide, ether, ester, carbonate, urethane or urea linkage;
- X3 and X4 are independently an optional alkylene or heteroalkene linker;
- and
- Y3 and Y4 are independently a polymerizable functional group.
17 more elements
A curable composition comprising:
- a plurality of polymerizable monomers, which polymerizable monomers comprise at least 80 wt % of a crosslinker;
- and
- at least 0.5 wt % of a wetting agent,
- wherein the crosslinker comprises:
- a first crosslinker having the following structure (I):
- Y1—X1-L1-A-L2-X2—Y2, (I)
- wherein:
- A is a cycloalkylene, alkylenecycloalkylene, alkylenecycloalkylenealkylene heterocycloalkylene, arylene, heteroarylene, alkylenearylene or alkylenearylenealkylene group;
- L1 and L2 are independently an amide, ether, ester, carbonate, urethane or urea linkage;
- X1 and X2 are independently an alkylene or heteroalkene linker;
- and
- Y1 and Y2 are independently a polymerizable functional group, and
- a second crosslinker having the following structure (II):
- Y3—X3-L3-B-L4-X4—Y3, (II)
- wherein:
- B is a linear or branched alkylene or heteroalkylene group;
- L3 and L4 are independently an optional amide ether ester, carbonate, urethane or urea linkage;
- X3 and X4 are independently an optional alkylene or heteroalkene linker;
- and
- Y3 and Y4 are independently a polymerizable functional group.
17 more elements
A curable composition comprising:
- a plurality of polymerizable monomers, which polymerizable monomers comprise at least 80 wt % of a crosslinker;
- wherein the curable composition is configured to develop a color defined by an L* value between 70 and 95, an a* value of between −11 and 1, and a b* value of between 2 and 22 upon curing, and
- wherein the crosslinker comprises:
- a first crosslinker having the following structure (I):
- Y1—X1-L1-A-L2-X2—Y2, (I)
- wherein:
- A is a cycloalkylene, alkylenecycloalkylene, alkylenecycloalkylenealkylene heterocycloalkylene, arylene, heteroarylene, alkylenearylene or alkylenearylenealkylene group;
- L1 and L2 are independently an amide, ether, ester, carbonate, urethane or urea linkage;
- X1 and X2 are independently an alkylene or heteroalkene linker;
- and
- Y1 and Y2 are independently a polymerizable functional group, and
- a second crosslinker having the following structure (II):
- Y3—X3-L3-B-L4-X4—Y3, (II)
- wherein:
- B is a linear or branched alkylene or heteroalkylene group;
- L3 and L4 are independently an optional amide, ether, ester, carbonate, urethane or urea linkage;
- X3 and X4 are independently an optional alkylene or heteroalkene linker;
- and
- Y3 and Y4 are independently a polymerizable functional group.
16 more elements
Dependencies are inferred from the claim text.