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US 2021/0246266 A1Published application
High dynamic range two-stage photopolymers
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsMarvin D. Alim, Christopher N. Bowman, Sudheendran Mavila, Robert R. McLeod
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Abstract
The present invention, in one aspect, relates to monomers and photopolymers that exhibit a high refractive index. The photopolymers of the invention have properties suitable for fabricating holographic optical elements (HOEs).
Claims23
A monomer of formula (I):
- wherein:
- each instance of Y is independently O, S, or NH;
- each instance of R1 and R2 is independently selected from the group consisting of optionally substituted C6-C18 aryl, optionally substituted C5-C18 heteroaryl, and C1-C3 alkyl optionally substituted with 1-6 independently selected C6-C10 aryl groups;
- R3 is selected from the group consisting of optionally substituted C2-C15 alkenyl, optionally substituted C2-C15 heteroalkenyl, optionally substituted C2-C15 alkynyl, optionally substituted C2-C15 heteroalkynyl, optionally substituted —C(═O)—C2-C15 alkenyl, optionally substituted —C(═O)—C2-C15 alkynyl, optionally substituted —C(═O)—C3-C10 cycloalkenyl, optionally substituted C3-C10 cycloalkenyl, and optionally substituted C3-C10 heterocycloalkenyl;
- and
- x is an integer ranging from 1 to 4.
3 more elements
A thiol-capped oligomer of formula (II):
- wherein:
- R1 is selected from the group consisting of optionally substituted C6-C18 aryl, optionally substituted C5-C18 heteroaryl, and C1-C3 alkyl optionally substituted with 1-6 independently selected C6-C10 aryl groups;
- p is any integer ranging from 2 to 200;
- and
- q is an integer ranging from 0 to 200.
2 more elements
Dependencies are inferred from the claim text.