Gel composition, method for manufacturing the gel composition, and method for manufacturing an ophthalmic lens using the gel composition
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsHSIU-WEN CHIEN, JIAN-CHIAO WANG
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Abstract
A gel composition comprises hydrophilic monomers, a cross-linking agent, an initiator, and astaxanthin-modified cyclodextrin complexes. The astaxanthin-modified cyclodextrin complexes comprise astaxanthin and modified cyclodextrin. The modified cyclodextrin has a chemical structure of with a hollow cavity, wherein R represents a chemical group having carbon-carbon double bond. The astaxanthin is embedded in the hollow cavity. The disclosure also provides a method for manufacturing a gel composition, and a method for manufacturing an ophthalmic lens using the gel composition.
Claims19
A method for manufacturing a gel composition comprising:
- providing astaxanthin-modified cyclodextrin complexes;
- and
- mixing the astaxanthin-modified cyclodextrin complexes, hydrophilic monomers, a cross-linking agent, and an initiator to form the gel composition;
- wherein the astaxanthin-modified cyclodextrin complexes comprise astaxanthin and modified cyclodextrin, the modified cyclodextrin has a chemical structure of
- with a hollow cavity, R represents a chemical group having carbon-carbon double bond, the astaxanthin is embedded in the hollow cavity.
A gel composition comprising:
- hydrophilic monomers;
- a cross-linking agent;
- an initiator;
- and
- astaxanthin-modified cyclodextrin complexes;
- wherein the astaxanthin-modified cyclodextrin complexes comprise astaxanthin and modified cyclodextrin, the modified cyclodextrin has a chemical structure of
- with a hollow cavity, R represents a chemical group having carbon-carbon double bond, the astaxanthin is embedded in the hollow cavity.
A method for manufacturing an ophthalmic lens comprising:
- providing astaxanthin-modified cyclodextrin complexes;
- mixing the astaxanthin-modified cyclodextrin complexes, hydrophilic monomers, a cross-linking agent, and an initiator to form the gel composition, wherein the astaxanthin-modified cyclodextrin complexes comprise astaxanthin and modified cyclodextrin, the modified cyclodextrin has a chemical structure of
- with a hollow cavity, R represents a chemical group having carbon-carbon double bond, the astaxanthin is embedded in the hollow cavity;
- and
- feeding the gel composition into a mold, and exposing the gel composition to ultraviolet radiation or heating the gel composition, to cause the astaxanthin-modified cyclodextrin complexes, the hydrophilic monomers, the cross-linking agent, and the initiator in the gel composition undergo a polymerization reaction, thereby forming the ophthalmic lens.
Dependencies are inferred from the claim text.