High-oxygen-permeability and high-oxygen-permeability hydrophilic polymer material
A hydrophilic polymer and high oxygen permeability technology, which is applied in the direction of instruments, optics, optical components, etc., can solve the problems that contact lenses are not suitable for long-term wear and poor durability, so as to protect eyes and avoid dry environment Effect
Inactive Publication Date: 2020-12-08
APEXLENS CO LTD
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Another disadvantage is that the durability against weather, friction, and hydrolysis is also poor, so contact lenses are not suitable for long-term wear
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly and completely described below. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.
[0015] The embodiments of the present invention will be described in more detail below, so that those skilled in the art can implement them after studying this description.
[0016] The high oxygen permeability and high oxygen permeability hydrophilic polymer material according to the embodiment of the present invention has the chemical formula A-(B) b -C, wherein A is an alicyclic isocyanate, B is a silicon-containing monomer, which is a repeating unit derived from graft mod...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a high-oxygen-permeability and high-oxygen-permeability hydrophilic polymer material, the high-oxygen-permeability and high-oxygen-permeability hydrophilic polymer material hasa chemical formula A-(B)b-C, A is alicyclic isocyanate; B is a silicon-containing monomer and is a repeating unit derived from grafting modification; b is a positive integer, and 1<=b<=30; (B) b has an average molecular weight of less than or equal to 5000, and accounts for 20-60% of the total weight of the high-oxygen permeability and high-oxygen permeability hydrophilic polymer material; and C is a first hydrophilic moisturizing graft monomer, and accounts for 1-40% of the total weight of the high-oxygen permeability and high-oxygen permeability hydrophilic polymer material. The high polymermaterial has high oxygen permeability, is very suitable for being applied to contact lenses, further protects eyes from adverse environments, can be used for manufacturing soft contact lenses, and can protect eyes from being in a dry environment.
Description
technical field [0001] The invention relates to the field of polymer materials, in particular to a high oxygen permeability and high oxygen permeability hydrophilic polymer material. Background technique [0002] Contact lenses have become very popular in recent years due to their ease of use and reliability, but users must avoid wearing them for prolonged periods of time because the cornea is deprived of the oxygen it needs. Therefore, the main feature of contact lenses is the need to have high oxygen permeability. [0003] In the known art, some materials with high oxygen permeability (such as hydrogel) have been used to make contact lenses, which can avoid the irritation of corneal hypoxia even after wearing the contact lenses for a long time. [0004] However, the known technology has the disadvantage of insufficient optical stability and poor chemical durability. As a result, the contact lens becomes dangerous and light transmittance may be deteriorated. Another disa...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G18/75
CPCC08G18/6715C08G18/672C08G18/677C08G18/6795C08G18/755C08L75/14G02B1/043C08G77/442
Inventor 黄千晏邱佳敏陈柏村
Owner APEXLENS CO LTD