Crystallizable resins
AssigneeAlign Technology, Inc.
InventorsMichael Christopher Cole, Jennifer Chavez
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Abstract
This disclosure provides polymeric materials comprising polymer crystals, methods and resins for making the same, and objects and appliances made from said polymeric materials. Polymeric materials having polymer crystals provide favorable properties, such as enhanced durability and rigidity. This disclosure also provides polymeric materials comprising a crystalline phase comprising at least one polymer crystal, as well as an amorphous phase comprising at least one amorphous polymer. The crystalline phase can confer rigidity to the polymeric material, while the amorphous phase can confer elasticity and flexibility.
Claims35
A resin comprising:
- a monomer of a crystallizable polymeric material, the crystallizable polymeric material having a melting temperature above 20° C.;
- a monomer of an amorphous polymeric material, the amorphous polymeric material having a glass transition temperature less than 40° C.;
- an initiator:
- and
- a polymer crystal, said polymer crystal comprising the monomer of the crystallizable polymeric material,
- wherein the resin has a viscosity from 0.5 PaS to 20 PaS at 90° C. and is capable of being 3D printed to form a 3D-printed polymeric material, wherein the 3D-printed polymeric material forms an orthodontic appliance.
A resin comprising:
- a monomer of a crystallizable polymeric material, the crystallizable polymeric material having a melting temperature above 20° C.;
- a monomer of an amorphous polymeric material, the amorphous polymeric material having a glass transition temperature less than 40° C.;
- an initiator;
- and
- a polymer crystal, said polymer crystal comprising the monomer of the crystallizable polymeric material,
- wherein the resin has a viscosity from 0.5 PaS to 20 PaS at 90° C. and is capable of being 3D printed to form a 3D-printed polymeric material, wherein the 3D-printed polymeric material forms an orthodontic appliance, wherein the monomer of the crystallizable material comprises an aromatic polyester.
Dependencies are inferred from the claim text.