Polymerizable compounds for orthodontic devices
AssigneeAlign Technology, Inc.
InventorsKejia Yang, Michael Christopher Cole, Xiance Wang, Umesh Upendra Choudhary
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Abstract
The present disclosure provides curable compositions comprising one or more of polymerizable liquid crystalline compounds or polymerizable polyesters with disrupted crystallinity, as well as polymeric materials formed from the curable compositions. Further provided herein are methods of producing the compositions and using the same for the fabrication of medical devices, such as orthodontic appliances.
Claims38
A polymerizable compound having the following structure (III):
- wherein:
- R1 and R3 are, at each occurrence, independently an arylene or heteroarylene group;
- R2 is, at each occurrence, independently a linear alkylene or arylene bis(alkylene ester) group;
- R4 is, at each occurrence, independently a linear or branched alkylene, linear or branched heteroalkylene, arylene bis(alkylene ester), arylene bis(heteroalkylene ester), bis(carboxyarylene) alkylene, bis(carboxyarylene) cylcoalkylene, bis(carboxyarylene) heteroalkylene, bis(carboxycycloalkylene) alkylene or bis(carboxycycloalkylene) heteroalkylene group;
- R5 is a linear or branched alkylene, linear or branched heteroalkylene, arylene bis(alkylene ester), arylene bis(heteroalkylene ester), bis(carboxyarylene) alkylene, bis(carboxyarylene) cylcoalkylene, bis(carboxyarylene) heteroalkylene, bis(carboxycycloalkylene) alkylene or bis(carboxycycloalkylene) heteroalkylene group;
- Q1 and Q2 are each independently an end-capping moiety comprising one or more reactive functional groups;
- m is an integer of one or greater;
- and
- n1 and n2 are, at each occurrence, independently an integer of one or greater for each integral value of m,
- provided that if R1 and R3 are the same, then R2 and R4 are different, and if R2 and R4 are the same, then R1 and R3 are different.
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A curable composition, comprising:
- an initiator;
- and
- a polymerizable compound having the following structure (II):
- wherein:
- M is an atom or group of atoms of a polymer backbone;
- LC is a liquid crystalline moiety;
- L1 is an optional alkylene or heteroalkylene linker covalently bound a liquid crystalline moiety to the polymer backbone;
- Q1 and Q2 are each independently an end-capping moiety comprising one or more reactive functional groups;
- and
- n is an integer of one or greater.
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Dependencies are inferred from the claim text.