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Monomer composition for contact lenses, polymer for contact lenses and method for producing same, and contact lens and method for producing same

A monomer composition, contact lens technology, applied in the direction of glasses/goggles, instruments, optical components, etc., can solve the problems that cannot be said to be obtained, sufficient performance, etc., and achieve the effect of excellent surface hydrophilicity

Active Publication Date: 2021-10-22
NOF CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In polysiloxane monomers having these structures, since the polydimethylsiloxane part of the main chain is not modified, compatibility with hydrophilic monomers and transparency of the obtained lenses are It cannot be said that sufficient performance has been obtained

Method used

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  • Monomer composition for contact lenses, polymer for contact lenses and method for producing same, and contact lens and method for producing same
  • Monomer composition for contact lenses, polymer for contact lenses and method for producing same, and contact lens and method for producing same
  • Monomer composition for contact lenses, polymer for contact lenses and method for producing same, and contact lens and method for producing same

Examples

Experimental program
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Effect test

preparation example Construction

[0139] The preparation method of the composition of the present invention is not particularly limited, for example, each component can be added in any order or added to a stirring (mixing) device, and stirred (mixed) at a temperature of 10°C to 50°C until uniform, thus prepared. However, when the composition contains a polymerization initiator, care must be taken not to initiate the polymerization reaction during mixing, and mixing is preferably performed at 40° C. or lower. In order to make the solubility of (A) component favorable, after mixing and dissolving three components of (A), (B), and (C)component, it is preferable to add and mix other components.

[0140] The polymer of the present invention consists of the polymer of the composition of the present invention described above. Hereinafter, the production method of the polymer of the present invention will be described. The production method shown below is only one embodiment of the method for obtaining the polymer, ...

Embodiment 1

[0221] Under the temperature condition of 25°C, after mixing and dissolving 11.8 mass % of A-1, 11.8 mass % of MPC and 31.5 mass % of ES, 7.9 mass parts of EGMV, 7.9 mass % of HBMA, 0.8 mass % of TEGDMA , 0.8% by mass of TEGDV, 11.8% by mass of MMA, 15.7% by mass of NVP, and 15.0 parts by mass of HeOH per 100% by mass of these in total were mixed and uniformly dissolved to obtain a composition. Table 2 shows the content ratio of each component.

[0222] Add 0.5 parts by mass of AIBN to the above composition, and pour it into a cell in which a polyethylene terephthalate sheet with a thickness of 0.1 mm is sandwiched between two polypropylene sheets as a spacer , and placed in the oven. After replacing the oven with nitrogen, raise the temperature to 100°C and maintain it for 2 hours at 0kgf / cm 2 The composition was polymerized (gauge pressure) to obtain the polymer of Example 1. Remove the polymer from the unit.

[0223] Reference (ISO 18369-3:2006, Ophthalmic Optics-Contac...

Embodiment 2～15 and comparative example 1 and 2

[0226] The compositions, polymers, and Contact lenses, and conduct evaluation tests. The results are shown in Table 2, Table 3 and Table 4.

[0227] [Table 2]

[0228]

[0229] *1 Blending amount of ingredients A~G; based on the total amount of monomer ingredients

[0230] * 2H component, initiator blending amount; relative to 100 parts by mass of monomer component

[0231] *3 contact lens

[0232] [table 3]

[0233]

[0234] *1 Blending amount of ingredients A~G; based on the total amount of monomer ingredients

[0235] * 2H component, initiator blending amount; relative to 100 parts by mass of monomer component

[0236] *3 contact lens

[0237] [Table 4]

[0238]

[0239] *1 Blending amount of ingredients A~G; based on the total amount of monomer ingredients

[0240] * 2H component, initiator blending amount; relative to 100 parts by mass of monomer component

[0241] *3 contact lens

[0242] According to the results of Table 2 and Table 3, in Examples 1 ...

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Abstract

The present invention provides a monomer composition for contact lenses that exhibit good surface hydrophilicity, good oxygen permeability, while having excellent modulus and excellent elongation at break, said monomer composition producing a polymer using a polysiloxane monomer.It is found that the above objective is able to be achieved by a monomer composition which contains a phosphorylcholine group-containing polysiloxane monomer, a monovinyl ether monomer or the like.

Description

technical field [0001] The present invention relates to a monomer composition for contact lenses, a polymer of the composition and a preparation method thereof, and a contact lens formed from a hydrate of the polymer and a preparation method thereof. [0002] This application claims the priority of Japanese application Japanese Patent Application No. 2019-083615, which is incorporated herein by reference. Background technique [0003] Silicone hydrogel contact lenses are less burdensome to the eyes due to their high oxygen permeability. On the other hand, since silicone hydrogel contains hydrophobic silicone, wettability and lubricity tend to be insufficient. Therefore, surface hydrophilization by a surface modification method or surface hydrophilization by mixing a hydrophilic polymer into a lens composition before curing has been studied. Currently, various methods exist to provide silicone hydrogel lenses with optical clarity and desired lubricity, and high oxygen perme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08G77/395G02C7/04
CPCC08G77/395G02C7/049C08F290/068C08G77/20C08G77/46C08G77/30C08G77/26C08K5/52C08K5/521C08K5/19C08F230/02C08F220/14C08F220/20C08F222/102C08F226/10C08F220/54C08L83/08C08L83/10C08L83/04G02C7/04G02B1/043
Inventor 高岛柊小林滉五反田龙矢岩切规郎松冈阳介原田英治
Owner NOF CORP
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