Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of high viscosity protective film and preparation method thereof

A protective film and high-viscosity technology, which is applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of easy adhesion between the surface layer and the adhesive layer, and is not easy to peel off, so as to reduce the unwinding force, good anti-sticking and unwinding sexual effect

Active Publication Date: 2021-08-17
NINGBO EXCITON TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the surface layer and the adhesive layer are easily adhered and difficult to peel off during the unwinding process of the high-viscosity protective film, the invention provides a high-viscosity protective film and a preparation method thereof

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
  • A kind of high viscosity protective film and preparation method thereof
  • A kind of high viscosity protective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The high-viscosity protective film provided by the invention sequentially comprises a surface layer, a core layer and an adhesive layer.

[0039] The surface layer is compounded by polypropylene resin composition and low-density polyethylene at a ratio of 90.1%:9.9%. The polypropylene resin composition is 90% by weight of ethylene-propylene block copolymer, 2% by weight of fluorine-containing compound and 8% by weight of release resin, which are granulated through an extruder. The total weight of the ethylene-propylene block copolymer, the fluorine-containing compound and the release resin is 100%, and the low-density polyethylene accounts for 11% of the total weight of the ethylene-propylene block copolymer, the fluorine-containing compound and the release resin. The density of ethylene-propylene block copolymer is 0.90g / cm 3 , The melt index is 4.0g / 10min. Fluorochemicals are perfluoroalkyl acrylates. The release resin is a vinyl polymer chemically modified by styr...

Embodiment 2

[0044] As the high-viscosity protective film provided in embodiment 1, the difference is:

[0045]The surface layer is compounded by polypropylene resin composition and low-density polyethylene at a ratio of 83.3%:16.7%. The polypropylene resin composition is 90% by weight of ethylene-propylene block copolymer, 7% by weight of fluorine-containing compound and 3% by weight of release resin. The total weight of the ethylene-propylene block copolymer, the fluorine-containing compound and the release resin is 100%, and the low-density polyethylene accounts for 20% of the total weight of the ethylene-propylene block copolymer, the fluorine-containing compound and the release resin.

Embodiment 3

[0047] As the high-viscosity protective film provided in embodiment 1, the difference is:

[0048] The surface layer is composed of polypropylene resin composition and low-density polyethylene at a ratio of 80%:20%. The polypropylene resin composition is 90% by weight of ethylene-propylene block copolymer, 5% by weight of fluorine-containing compound and 5% by weight of release resin. The total weight of the ethylene-propylene block copolymer, the fluorine-containing compound and the release resin is 100%, and the low-density polyethylene accounts for 25% of the total weight of the ethylene-propylene block copolymer, the fluorine-containing compound and the release resin.

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
densityaaaaaaaaaa
melt flow indexaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of protective film materials, in particular to a high-viscosity protective film and a preparation method thereof. In order to solve the problem that the surface layer and the adhesive layer are easily adhered to and difficult to peel off during the unwinding process of the high-viscosity protective film, the invention provides a high-viscosity protective film and a preparation method thereof. The high-viscosity protective film sequentially includes a surface layer, a core layer and an adhesive layer, wherein the surface layer includes a polypropylene resin composition and a polyethylene resin. The unwinding force of the high-adhesive protective film is low, that is, the force required for unwinding the protective film is low, and the surface layer will not pollute the adhesive layer and affect the adhesive force.

Description

technical field [0001] The invention relates to the field of protective film materials, in particular to a high-viscosity protective film and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronics industry, the demand for ultra-thin displays such as liquid crystal displays has also increased. The liquid crystal display is mainly composed of a variety of optical films. To prevent optical films from being stained or scratched during handling and assembly, their surfaces need to be protected. Since the protective film is a film composed of three layers of surface layer, core layer and adhesive layer, it is usually rolled into a roll shape, especially for high-viscosity protective films. The layers are easy to stick and not easy to peel off. At the same time, the low-molecular substances on the surface will be brought to the adhesive layer, resulting in a significant decrease in the adhesion of the adhesive la...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/29C09J7/30C08L53/00C08L23/06C08L63/10
CPCC08L53/00C08L2205/03C09J2453/00C09J2453/006C09J7/29C09J7/30C09J2301/16C09J2301/41C08L23/06C08L63/10
Inventor 张彦陈强胡金福李刚唐海江
Owner NINGBO EXCITON TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com