Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Wear-resistant resin spectacle lens and preparation technology thereof

A technology of resin spectacle lenses and wear-resistant resin, applied in the optical field, can solve the problems of poor surface wear resistance of composite spectacle lenses, reduced service life of spectacle lenses, heavy composite spectacle lenses, etc. Lightweight and comfortable to wear

Inactive Publication Date: 2016-08-17
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compound spectacle lens made by this patent is heavy, and the comfort level of consumers when wearing it is reduced, and the wear resistance of the surface of the compound spectacle lens is poor, and the service life of the spectacle lens is reduced

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wear-resistant resin spectacle lens and preparation technology thereof
  • Wear-resistant resin spectacle lens and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A wear-resistant resin spectacle lens, the raw materials and weight percentages for preparing the resin spectacle lens are: 50% polymethyl methacrylate, 15% bisphenol A polycarbonate, 10% silicone acrylic resin, tert-butyl polyacrylate 0.2%, linear low density polyethylene 0.05%, oxazoline 2%, catechol 1%, β-naphthylamine 0.1%, dodecyl dihydroxyethyl betaine 1%;

[0036] The molecular weight of polymethyl methacrylate is 30000, and the melt index measured at 190°C and 21.6Kg according to GB-T3682 is 130g / 10min;

[0037] Wherein the molecular weight of bisphenol A type polycarbonate is 15000, and molecular mass distribution is 2.0;

[0038] Among them, the viscosity of the silicone acrylic resin at 60°C is 25Pa·s;

[0039] The molecular weight of tert-butyl polyacrylate is 13000, and the melt index measured at 190°C and 21.6Kg according to GB-T3682 is 350g / 10min;

[0040] Among them, the molecular mass distribution of linear low density polyethylene is 1.8.

Embodiment 2

[0042] A wear-resistant resin spectacle lens, the raw materials and weight percentages of the resin spectacle lens are: 65% polymethyl methacrylate, 35% bisphenol A polycarbonate, 15% silicone acrylic resin, tert-butyl polyacrylate 0.5%, linear low density polyethylene 0.10%, oxazoline 6%, catechol 3%, β-naphthylamine 0.3%, dodecyl dihydroxyethyl betaine 5%;

[0043] The molecular weight of polymethyl methacrylate is 45000, and the melt index measured at 190°C and 21.6Kg according to GB-T3682 is 170g / 10min;

[0044] Wherein the molecular weight of bisphenol A type polycarbonate is 25000, and molecular mass distribution is 4.0;

[0045] Among them, the viscosity of silicone acrylic resin at 60°C is 50Pa·s;

[0046] The molecular weight of tert-butyl polyacrylate is 30,000, and the melt index measured at 190°C and 21.6Kg according to GB-T3682 is 500g / 10min;

[0047] Wherein the molecular mass distribution of linear low density polyethylene is 3.0.

Embodiment 3

[0049] A wear-resistant resin spectacle lens, the raw materials and weight percentages of the resin spectacle lens are: 55% polymethyl methacrylate, 20% bisphenol A polycarbonate, 12% silicone acrylic resin, tert-butyl polyacrylate 0.2%, linear low density polyethylene 0.06%, oxazoline 3%, catechol 1.5%, β-naphthylamine 0.15%, dodecyl dihydroxyethyl betaine 1.5%;

[0050] Among them, the molecular weight of polymethyl methacrylate is 32500, and the melt index measured according to GB-T3682 at 190°C and 21.6Kg is 140g / 10min;

[0051] Wherein the molecular weight of bisphenol A type polycarbonate is 17500, and molecular mass distribution is 2.5;

[0052] Among them, the viscosity of silicone acrylic resin at 60°C is 30Pa·s;

[0053] The molecular weight of tert-butyl polyacrylate is 18000, and the melt index measured at 190°C and 21.6Kg according to GB-T3682 is 380g / 10min;

[0054] The molecular mass distribution of linear low density polyethylene is 2.1.

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

PropertyMeasurementUnit
Melt indexaaaaaaaaaa
Viscosityaaaaaaaaaa
Melt indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a wear-resistant resin spectacle lens and a preparation process thereof. The raw materials are: polymethyl methacrylate, bisphenol A polycarbonate, silicone acrylic resin, poly(tert-butyl acrylate), linear low-density polyethylene, Oxazoline, catechol, β-naphthylamine, dodecyl dihydroxyethyl betaine; the preparation process is: polymethyl methacrylate, bisphenol A polycarbonate, silicone acrylic resin and poly Put tert-butyl acrylate into the hopper of the twin-screw extruder after mixing with linear low-density polyethylene for melt-mixing and granulation; add oxazoline, catechol, and β-naphthalene to the hopper of the lens injection machine in sequence The amine and dodecyl dihydroxyethyl betaine are heated to obtain a molten mixture, and then injection molding is performed to obtain a preform; the preform is cured to obtain a molded part, and after post-treatment, the wear-resistant resin spectacle lens is obtained. The resin spectacle lens prepared by the invention is light in weight, comfortable to wear, high in refractive index of the lens, high in light transmittance, wear-resistant and scratch-proof, and long in service life.

Description

technical field [0001] The invention relates to the field of optics, in particular to a wear-resistant resin spectacle lens and a preparation process thereof. Background technique [0002] Spectacle lenses are mainly made of glass, resin, and natural materials. Among them, resin spectacle lenses have a wide range of raw materials, low cost, simple process, and are suitable for mechanized mass production. Moreover, the quality of the prepared spectacle lens is lighter than that of other spectacle lenses, and the wearing comfort is strong; it is not easy to break and has strong wearing safety; the spectacle lens has good optical performance and is suitable for protecting eyes. Therefore, the resin lens has a broader market development prospect. [0003] Due to the poor wear resistance of untreated resin lenses, the method of coating one or more layers of hard film on the surface of the resin lens is generally used to increase the hardness of the resin lens surface to improve...

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
no application Login to View More
IPC IPC(8): C08L33/12C08L69/00C08L33/04C08L33/08C08L23/08C08K5/00C08K5/353C08K5/18C08K5/19C08K5/13G02C7/02
CPCC08L33/12C08L2205/035C08L2205/08G02C7/02C08L69/00C08L43/04C08L33/08C08L23/0815C08K5/00C08K5/353C08K5/18C08K5/19C08K5/13
Inventor 曹明
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com