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

Preparation method of self-adhesive polyethylene base protection film

A polyethylene-based protective film, self-adhesive technology, used in chemical instruments and methods, adhesives, flat products, etc.

Inactive Publication Date: 2005-03-23
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF6 Cites 43 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there must be high molecular weight substances that provide sufficient melt strength and melt elasticity and good compatibility between these components

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 1

[0017] Get 70 parts of low-density polyethylene (LDPE) 18D produced by Daqing Petrochemical Co., Ltd. and 30 parts of linear low-density polyethylene (LLDPE) 1001 XV produced by Exxon Company and mix them as the base film resin of the protective film. Get 90 parts of above-mentioned base film resin mixture, vinyl acetate content is 18wt% ethylene-vinyl acetate copolymer (EVA) EVA18-3 resin 10 parts are mixed as the middle layer resin of protective film. Get 10 parts of base film mixed resin, 100 parts of ethylene-vinyl acetate copolymer (EVA) resin that vinyl acetate content is 28wt%, melt flow index is 5.0g / 10min, maleic anhydride content is the maleic anhydride content of 1wt%. 1 part of polyethylene grafted with acid anhydride, 1 part of acrylic acid grafted polyethylene with a grafted content of acrylic acid of 0.5 wt%, 1 part of dioctyl adipate as a tackifier, 0.5 part of sorbitol monooleate as an antifogging agent, Mix the self-adhesive layer resin as a protective film. ...

Embodiment 2

[0021] Take 70 parts of low-density polyethylene (LDPE) 1F7B resin produced by Yanshan Petrochemical Company with a melt flow index of 0.7g / 10min, and 30 parts of linear low-density polyethylene (LLDPE) LL149 (Korea SK) as the base film resin of the protective film. Get 10 parts of the above-mentioned base film resin mixture, Japan's Mitsui company produces vinyl acetate content is 18wt%, melt flow index is 2.0g / 10min ethylene-vinyl acetate copolymer (EVA) 18-2 resin 90 parts are mixed, as The middle layer of the protective film. Get 20 parts of the above-mentioned base film resin mixture, vinyl acetate content is 28wt%, melt flow index is 5.0g / 10min ethylene-vinyl acetate copolymer (EVA) resin 100 parts, maleic anhydride content is 2.0wt% 3 parts of maleic anhydride grafted polyethylene, 3 parts of acrylic acid grafted polyethylene with acrylic acid graft content of 1.0 wt%, 1 part of tackifier dioctyl adipate, 0.5 part of antifogging agent sorbitan oleic acid monoester , mi...

Embodiment 3

[0025] Get 30 parts of low-density polyethylene (LDPE) 18D produced by Daqing Petrochemical and 70 parts of linear low-density polyethylene (LLDPE) 1001 XV produced by Exxon Company and mix them as the base film resin of the protective film. Take 50 parts of the base film resin mixture, and mix 50 parts of ethylene-vinyl acetate copolymer (EVA) 18-3 resin with a vinyl acetate content of 18 wt % as the middle layer resin of the protective film. Get 10 parts of base film mixed resin, 80 parts of ethylene-vinyl acetate copolymer (EVA) resin that vinyl acetate content is 33wt%, melt flow index is 6.0g / 10min, maleic anhydride content is the maleic anhydride content of 3.0wt%. 10 parts of toric anhydride grafted polyethylene, 3 parts of acrylic acid grafted polyethylene with acrylic acid graft content of 1.5 wt%, 2 parts of tackifier dioctyl adipate, 1 part of antifogging agent sorbitan oleic acid monoester, Mix the self-adhesive layer resin as a protective film.

[0026] The three...

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
Longitudinal tensile strengthaaaaaaaaaa
Transverse tensile strengthaaaaaaaaaa
Melt flow indexaaaaaaaaaa
Login to View More

Abstract

A process for preparing self-adhesive polyethene-base protecting film includes such steps as extruding out basic film, middle layer and self-adhesive layer, and blowing film to obtain a composite film. Said basic film is prepared from low-density polyethene and low-density linear polyethene. Said middle layer is prepared from the polyethene of basic film and ethene-vinyl acetate. Said self-adhesive layer is prepared from 6 chemicals including ethene-vinyl acetate, polyethene of basic film, dioctyl adiptate, etc.

Description

technical field [0001] The invention belongs to a preparation method of a self-adhesive polyethylene-based protective film. Background technique [0002] There are many products, from small mobile phone screens to large car exterior decorative paint films, that need to be protected from ultraviolet rays, acid rain in the atmosphere, bird droppings, small insects, microorganisms, and salt spray in sea water during storage and transportation. Corrosion caused by these products. The protective film was born to meet this market demand. Another function of the protective film is to prevent the surface of the protected object from being polluted, scratched or scratched during storage and transportation. Many household appliances, high-end furniture, and decorative materials are also protected with this protective film. [0003] The self-adhesive protective film is usually a composite film composed of more than two layers (including two layers) of polymer materials. Its base fi...

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): B29C55/28B29D7/01B32B27/32C09J7/02
Inventor 刘景江孙春荣
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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