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

Polypropylene-based sealant film for press molding

A stamping forming and sealing agent technology, which is applied in the field of polypropylene sealant film for stamping and forming, can solve problems such as undeniable performance and achieve good appearance

Active Publication Date: 2021-11-05
FUTAMURA CHEM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the lack of performance cannot be denied in the existing sealant film for conventional packaging

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
  • Polypropylene-based sealant film for press molding
  • Polypropylene-based sealant film for press molding
  • Polypropylene-based sealant film for press molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0066] [Production of polypropylene-based sealant film for press molding (film production)]

[0067] The polypropylene-based sealant films for press molding of Examples 1 to 9 and Comparative Examples 1 to 10 were produced based on the types of resins shown in Tables 1 to 4 (see below) and their compounding ratios (% by weight). Examples 1 to 4 and comparative examples 1 to 6 were made figure 2 The three-layer structure of "the lamination layer part, the base material layer part, and the sealant layer part" disclosed as the second embodiment. In addition, in the film of each example using 2nd Embodiment, the lamination layer part and the sealant layer part were made into the same resin composition. Next, Examples 5 to 9 and Comparative Examples 7 to 10 were made figure 1 The two-layer structure of "the base material layer part and the sealant layer part" disclosed as 1st Embodiment.

[0068] In the second embodiment, pellets and the like of raw material resins (see below) ...

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
melt flow indexaaaaaaaaaa
melting pointaaaaaaaaaa
enthalpy of fusionaaaaaaaaaa
Login to View More

Abstract

[Problem] To provide a polypropylene-based sealant film for press molding that has good appearance and temperature resistance and can be used in a wide range of applications from general packaging to batteries. [Solution] A sealant layer portion 21 is provided on the first surface portion 11 side of the base layer portion 10; the base layer portion is mainly composed of a propylene-ethylene block copolymer (A), and (a1) the (A) The weight-average molecular weight of the xylene-soluble component is 100,000 to 600,000, (a2) the melt flow rate of (A) is 1 to 10 g / 10 minutes, (a3) ​​relative to the xylene-soluble component of (A) The ethylene content is 10 to 70% by weight; the sealant layer is mainly composed of propylene-ethylene random copolymer (B), and (b1) the melting point of (B) measured by differential scanning calorimetry is 145 to 160°C, (b2) The heat of fusion of (B) measured by differential scanning calorimetry is 60 to 100 mJ / mg, and (b3) the ethylene content of (B) is 1 to 5% by weight.

Description

technical field [0001] The present invention relates to a polypropylene-based sealant film for press molding. Background technique [0002] Now, when packaging items, an automatic packaging machine feeds film and items and continuously fills, packs, and seals them. Performances required of such a packaging film are sufficient durability and strength during supply, processing, and distribution of the film. In particular, the film is processed into the form of a packaging bag and distributed. When producing such a packaging bag, an appropriate film strength called breakage resistance is required. In general, when improving bag burst resistance, a base film such as a stretched polypropylene film, a stretched polyester film, or a stretched polyamide film is laminated on an unstretched sealant film. Furthermore, when imparting bag-breaking resistance, a polypropylene-based film obtained by adding a thermoplastic elastomer to an unstretched sealant film is disclosed (see Patent...

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): B32B27/32B32B27/08B32B27/30B65D65/40
CPCB65D65/40B32B27/08B32B27/30B32B27/32B32B2307/306Y02E60/10H01M10/0525B32B2457/10B32B2581/00H01M50/124H01M50/121
Inventor 冈本健太郎缓诘宏石黑和也
Owner FUTAMURA CHEM
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