Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same

A vinyl alcohol copolymer, linear low-density technology, applied in the field of blended film and its production, can solve the problems of incompatibility between LLDPE and EVOH, improve adhesion and compatibility, reduce production costs, and improve mechanical properties high effect

Inactive Publication Date: 2008-12-17
哈尔滨隆华艺达包装制品有限公司
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that an adhesive layer must be added between the two when the two are used together because LLDPE and EVOH are incompatible, and a kind of linear low density polyethylene and ethylene-vinyl alcohol copolymer is provided. Blend film and method of making the same

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
  • Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same
  • Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same
  • Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0015] Specific embodiment one: In this embodiment, the blend film of linear low density polyethylene and ethylene-vinyl alcohol copolymer consists of 71.91 to 84.93 parts by weight of linear low density polyethylene and 10 to 15 parts of ethylene-vinyl alcohol Copolymer, 8-13 parts of calcium carbonate masterbatch with mass concentration of 30%, 0.02-0.2 parts of maleic anhydride monomer, 0.002-0.005 parts of dicumyl peroxide, 0.002-0.007 parts of diphenyl peroxide Formyl and 0.002 to 0.01 parts of dimethylformamide are made.

specific Embodiment approach 2

[0016] Specific embodiment two: In this embodiment, the blended film of linear low density polyethylene and ethylene-vinyl alcohol copolymer consists of 71.91 to 84.93 parts by weight of linear low density polyethylene, 10 to 15 parts of ethylene-vinyl alcohol Copolymer, 8-13 parts of calcium carbonate masterbatch with a mass concentration of 30%, 0.02-0.2 parts of acrylic acid, 0.002-0.005 parts of dicumyl peroxide, 0.002-0.007 parts of dibenzoyl peroxide and 0.002 parts ~0.01 parts of dimethylformamide.

specific Embodiment approach 3

[0017]Specific embodiment three: In this embodiment, the blended film of linear low density polyethylene and ethylene-vinyl alcohol copolymer consists of 79.533 to 101.756 parts by weight of linear low density polyethylene, 8 to 13 parts with a mass concentration of 30% Calcium carbonate masterbatch, 0.1-0.684 parts of maleic anhydride monomer, 0.008-0.018 parts of dicumyl peroxide, 0.024-0.062 parts of dibenzoyl peroxide, 0.01-0.035 parts of dimethylformamide And 9.533 ~ 16.756 parts of ethylene-vinyl alcohol copolymer.

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 blend film of linear low-density polyethylene and ethylene-vinyl alcohol copolymer and a manufacturing method thereof, which relates to a blend film and a making method thereof. The invention solves the problems that LLDPE and EVOH are incompatible and require a bonding layer in the middle when being used together. The blend film of the invention is made by linear low-density polyethylene, ethylene-vinyl alcohol copolymer, calcium carbonate master batches, dicumyl peroxide, dibenzoyl peroxide, dimethylformamide and a maleic anhydride monomer or acrylic acid. The manufacturing method of the invention includes that modified master batches are first prepared to be then used for manufacturing the blend film of the invention. The blend film of the invention can be directly obtained without adding a bonding layer between LLDPE and EVOH when in use of raw materials of LLDPE and EVOH.

Description

technical field [0001] The invention relates to a blend film and a preparation method thereof. Background technique [0002] In 2006, China's plastic resin consumption reached 40 million tons, of which 40% were used in the plastic packaging industry, and films accounted for a large proportion in the plastic packaging industry, of which 37% were high-barrier films. It can be seen that barrier packaging films are used in my country's plastic packaging processing The important position in the industry also reflects the market demand for high barrier films. In today's market where the performance requirements of polymers are constantly improving, it is difficult to synthesize new polymers, and the use of blends between polymers can overcome the shortcomings of a single polymer. Currently, linear low-density polyethylene (LLDPE) ) and ethylene-vinyl alcohol copolymer (EVOH) are mostly used in the form of multi-layer co-extrusion, and a layer of adhesive resin is used between the ...

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 Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K3/26C08J3/22C08J5/18
Inventor 吴艳秋
Owner 哈尔滨隆华艺达包装制品有限公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap