Orthodontic articles prepared using a polycarbonate diol, polymerizable compositions, and methods of making the articles

A method comprising:

• a) obtaining a photopolymerizable composition comprising:
• 30-65 parts by weight of monofunctional (meth)acrylate monomer(s) per 100 parts of the total polymerizable composition, wherein a cured homopolymer of at least one monofunctional (meth)acrylate monomer has a Tg of 30° C. or greater;
• and
• at least one urethane (meth)acrylate comprising polymerized units of an aliphatic polycarbonate diol;
• b) selectively curing the photopolymerizable composition;
• and
• c) repeating steps a) and b) to form multiple layers and create the orthodontic article.

A method comprising:

• a) receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying a plurality of layers of an orthodontic article;
• and
• b) generating, with the manufacturing device by an additive manufacturing process, the orthodontic article based on the digital object, the orthodontic article comprising a reaction product of a photopolymerizable composition, the photopolymerizable composition comprising a blend of:
• 30-65 parts by weight of monofunctional (meth)acrylate monomer(s) per 100 parts of the total polymerizable composition, wherein a cured homopolymer of at least one monofunctional (meth)acrylate monomer has a Tg of 30° C. or greater;
• and
• at least one urethane (meth)acrylate comprising polymerized units of an aliphatic polycarbonate diol.