Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of environment-friendly type special protecting film with high viscosity for light guide plates

A protective film and environment-friendly technology, applied in optics, adhesives, optical components, etc., can solve the problems of large viscosity changes and poor viscosity stability of the light guide plate protective film, and achieve good viscosity stability, stable viscosity, and good environmental protection performance Effect

Inactive Publication Date: 2017-08-22
CHENGDU HUIJIA ADHESIVE PROD CO LTD
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the viscosity stability of the existing light guide plate protective film is poor, and its viscosity changes greatly in the process of temperature change. Solving Viscous Stability Issues

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] The preparation method of the special protective film for environment-friendly light guide plate with high viscosity of the present invention, the intermediate layer of the present invention comprises the following components in parts by weight: 20-30 parts of propylene block copolymer, 10-15 parts of ethylene vinyl acetate copolymer 15-20 parts of polyolefin elastomer, the self-adhesive layer includes the following components in parts by weight: 50-65 parts of polypropylene, 25-30 parts of metallocene polyethylene, 1-1.5 parts of antioxidant; including the following steps :

[0024] (1) Propylene block copolymer, ethylene vinyl acetate copolymer, and polyolefin elastomer are mixed in proportion, and the middle layer is obtained after stirring for 3-4 hours;

[0025] (2) Coating the intermediate layer on the substrate layer and baking at 115-120°C for 1.5-2min;

[0026] (3) Stir the polypropylene, metallocene polyethylene, and antioxidant in the self-adhesive layer eve...

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

No PUM Login to View More

Abstract

The invention discloses a preparation method of an environment-friendly type special protecting film with high viscosity for light guide plates. The preparation method comprises the steps: proportionally mixing propylene block copolymers, ethylene vinyl acetate copolymers and polyolefine elastomers; stirring the mixture for 3-4h to obtain an intermediate layer; coating a substrate layer with the intermediate layer, and baking at 115-120DEG C for 1.5-2min; and uniformly stirring polypropylene, metallocene polyethylene and an antioxidant of a self-adhering layer at 65-70DEG C, coating the intermediate layer with the self-adhering layer, baking at 100-110DEG C for 2-3min, and conducting curing by ultraviolet light, wherein the energy of the ultraviolet light is 60-65J / cm<2>, to obtain the protecting film.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a method for preparing a special protective film for an environment-friendly light guide plate with high viscosity. Background technique [0002] After the protective film currently applied to the light guide plate is attached to the surface of the light guide plate, the peeling force of the protective film will continue to increase as time goes by, resulting in the phenomenon that the protective film cannot be peeled off smoothly after use and there will be glue residue. In summer, the high-temperature and high-humidity weather environment exacerbates this phenomenon. The residual glue on the surface of the light guide plate is serious, and even the protective film is deformed and wrinkled, which affects the quality of the light guide plate. In addition, amides or rosin resins are generally added to the protective film to increase the holding force of the protective film. These s...

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): C09J7/02C09J123/14C09J123/06C09D153/00C09D123/00C09D123/08G02B1/14
CPCC09J123/14C08L2201/08C08L2205/03C08L2207/14C09D123/00C09D153/00C09J7/50G02B1/14C08L23/06C08L23/00C08L23/0853C08L53/00
Inventor 何松龙
Owner CHENGDU HUIJIA ADHESIVE PROD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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