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

A double-layer co-extruded cast film

A double-layer co-extrusion and co-extrusion casting technology, applied in the field of packaging materials, can solve problems such as film material aging

Active Publication Date: 2018-11-09
江苏求实塑业有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the process of long-term use, it will cause a certain aging of the film material, so there is an urgent need for a film material that still has high barrier properties under long-term use conditions, and takes into account flame retardancy and antibacterial properties

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

[0049] A double-layer co-extrusion casting film, adding PP plastic particles and PET plastic particles to a co-extrusion casting film machine to make a PET / PP film including a PET layer and a PP layer,

[0050] The PP plastic particles comprise the following components by weight:

[0051] PP: 120 parts, trihydroxypolyoxypropylene ether: 25 parts, N, N'-(4,4'-methylenediphenyl) bismaleimide: 5 parts, trimethylolpropane triacrylic acid Methyl ester: 15 parts, 4,4'-dihydroxydiphenyl sulfide: 8 parts, montmorillonite: 8 parts, paraffin wax: 10 parts, antioxidant 1010: 0.2 parts, nano-TiO2: 2 parts, polyether siloxane Alkane copolymer: 0.5 parts, methyl hydroxyethyl cellulose: 0.5 parts, vinyl triperoxy tert-butylsilane: 1 part;

[0052] Described PET plastic particle comprises following composition by weight:

[0053] Terephthalic acid: 1000 parts, ethylene glycol: 600 parts, maleic anhydride: 50 parts, 2-nitroterephthalic acid-4-methyl ester: 10 parts, 2,2-dimethyl-1 , 3-propa...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a double-layer coextrusion casting film which comprises a PET layer and a PP layer. PP plastic particles comprise PP, trihydroxy polyoxypropylene ether, N,N'-(4,4'-methylene diphenyl)bismaleimide, trimethylolpropane trimethacrylate, 4,4'-dyhydroxyl diphenyl sulfide, montmorillonite, paraffin, antioxidant 1010, nano TiO2, polyether siloxane copolymer, methyl hydroxyethyl cellulose and VTPS silane coupling agent. PET plastic particles comprise terephthalic acid, ethylene glycol, maleic anhydride, 2-nitroterephthalic acid-4-methyl ester, 2,2-dimethyl-1,3-propylene glycol, 2,3-dibromo-2-butene-1,4-glycol, 1,4-benzene dimethanol, 2-aminoterephthalic acid, tetrabromo terephthalic acid, bis(2-ethyl hexyl)terephthalic acid, 4-bromo phthalic anhydride, 2,2-difluoro-1,3-benzodioxole, magnesium fluosilicate and antibacterial agent. By the combining of the PP layer and the PET layer, the whole composite film is high in barrier property, antibacterial and flame-retardant.

Description

technical field [0001] The invention relates to a packaging material, more specifically to a double-layer co-extruded casting film. Background technique [0002] High-barrier film is a multi-layered film made by simultaneously extruding a material with strong gas barrier properties and polyolefin with strong thermal seam and moisture barrier properties. [0003] In the prior art, there are other new requirements for high barrier films, especially in some food packaging, there are also some requirements for antibacterial performance and flame retardancy. Especially in the process of long-term use, it will cause a certain aging of the film material, so there is an urgent need for a film material that still has high barrier properties under long-term use conditions, and takes into account flame retardancy and antibacterial properties. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide one. [00...

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): C08L23/12C08L71/02C08L91/06C08L51/06C08K13/02C08K3/34C08K3/22C08K5/375C08K5/103C08G63/685C08G63/682C08G63/78C08G63/91C08K13/06C08K9/04C08K3/36C08L67/06B32B27/08B32B27/18B32B27/24B32B27/32B32B27/36B29C41/32
CPCB29C41/32B32B27/08B32B27/18B32B27/24B32B27/32B32B27/36B32B2250/24B32B2307/3065B32B2307/54B32B2307/7145B32B2307/7242C08G63/6828C08G63/6858C08G63/78C08G63/918C08K3/34C08K3/36C08K9/04C08K13/06C08K2201/011C08L23/12C08L2201/02C08L2205/035C08L71/02C08L91/06C08L51/06C08K13/02C08K3/346C08K2003/2241C08K5/375C08K5/103C08L67/06
Inventor 林福亮
Owner 江苏求实塑业有限公司
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