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US 12,552,935 B2Granted
Polydisulfide polymer
AssigneeHighRI Optics, Inc.
InventorsCarlos Pina-Hernandez, Keiko Munechika
Life of this patent
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Abstract
A method for forming a polydisulfide polymer is described. In various implementations, the method includes forming a mixture including one or more thiols, agitating the mixture, precipitating the mixture, and extracting a polydisulfide polymer from the mixture. In various implementations, the polydisulfide polymer has a refractive index of at least 1.7.
Claims12
A random polydisulfide copolymer comprising:
- one or more thiol monomers;
- and
- one or more ene monomers in a non-stoichiometric ratio randomly cross-linked with the one or more thiol monomers, wherein the non-stoichiometric ratio provides the polydisulfide copolymer with a refractive index greater than approximately 1.7, an optical transparency of at least 0.9 per μm, and solubility in one or more organic solvents such that the polydisulfide copolymer can be applied to form an optical element at least 20 nm thick.
Dependencies are inferred from the claim text.