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Contact lens material, contact lenses and method for manufacturing contact lenses

A technology of contact lenses and manufacturing methods, applied in glasses/goggles, instruments, optics, etc., capable of solving problems such as uncomfortable wearing

Active Publication Date: 2013-07-31
BENQ MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, because the surface of silicone hydrogel material is hydrophobic, it is uncomfortable to wear. Therefore, it is necessary to develop a novel contact lens material that can have high oxygen permeability (oxygen permeability coefficient DK) and moderate water content. and high wearing comfort

Method used

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  • Contact lens material, contact lenses and method for manufacturing contact lenses
  • Contact lens material, contact lenses and method for manufacturing contact lenses
  • Contact lens material, contact lenses and method for manufacturing contact lenses

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preparation example Construction

[0094] 5. Preparation of Contact Lenses

[0095] (1) detailed preparation steps of embodiment 1-embodiment 15

Embodiment 1

[0096] Detailed preparation steps of embodiment 1

[0097]Silicone polymer (I-1), silicone polymer (II), N-vinylpyrrolidone (NVP), 2-hydroxyethyl methacrylate (HEMA), N,N-dimethyl Acrylamide (DMA), thermal initiator azobisisoheptanonitrile (ADVN) and solvent ethanol were mixed in the proportions shown in Table 1 and stirred for about 1 hour to form a mixture.

[0098] The mixture was then added to the PP mold and cured in an oven at 80°C for 10 hours. After the polymerization reaction is complete, soak the model and lens in isopropanol for 1 hour and remove the contact lens. The contact lens lenses were then heated in water for 4 hours before being placed in buffered saline.

Embodiment 2

[0099] Detailed preparation steps of embodiment 2

[0100] Silicone polymer (I-1), silicone polymer (II), N-vinylpyrrolidone (NVP), 2-hydroxyethyl methacrylate (HEMA), thermal initiator azobis Isoheptanonitrile (ADVN) and solvent ethanol were mixed in the proportions shown in Table 1 and stirred for about 1 hour to form a mixture.

[0101] The mixture was then added to the PP mold and cured in an oven at 80°C for 10 hours. After the polymerization reaction is complete, soak the model and lens in isopropanol for 1 hour and remove the contact lens. The contact lens lenses were then heated in water for 4 hours before being placed in buffered saline.

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Abstract

The invention provides a contact lens material, a method for manufacturing contact lenses and the contact lenses manufactured with the method. The contact lens material, the contact lenses and the method for manufacturing the contact lenses are characterized by comprising a first siloxane tellurium polymer as shown in a chemical formula (1), namely the following chemical formula (1). Thus, the contact lenses made by the contact lens material have the advantages that an oxygen permeation rate (oxygen permeation coefficient DK) is high and a water content rate is moderate.

Description

technical field [0001] The present invention relates to a contact lens material, and in particular to a contact lens material comprising an amino acid structure. Background technique [0002] Early hard contact lenses were mainly made of glass, and later soft contact lenses were developed to improve the uncomfortable wearing of hard contact lenses. Soft contact lenses can be divided into hydrogel contact lenses and silicone hydrogel contact lenses according to their materials. [0003] The main material of hydrogel contact lenses is poly 2-hydroxyethyl methacrylate (p-HEMA), etc. Since the water content of poly 2-hydroxyethyl methacrylate (p-HEMA) is only 38.8%, in order to increase the moderate water content, more than one hydrophilic monomer, such as N-ethylene, is added to the contact lens material Nylpyrrolidone (NVP), N,N-dimethylacrylamide (DMA), methacrylic acid (MAA), etc. [0004] After adding hydrophilic monomers, the water content of contact lenses can be incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F2/48C08G77/38C08G77/388G02C7/04G02B1/04
Inventor 詹凡丹
Owner BENQ MATERIALS
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