Unlock instant, AI-driven research and patent intelligence for your innovation.

Layer made of base plastic comprising barrier plastic nodules

A plastic layer and plastic technology, applied in the direction of plastic recycling, synthetic resin layered products, cellulose plastic material layered products, etc., can solve the problems of limited reuse level, poor mechanical properties, restrictions, etc.

Inactive Publication Date: 2009-09-02
PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of multilayer structures, the presence of many different plastics presents problems during recycling: if the situation is limited to grinding them into pellets and reusing them in the manufacture of new articles, there is the danger that the latter (new articles) exhibit poor mechanical properties; therefore, the amount of this recycled material must sometimes be strictly limited depending on the box geometry
[0005] However, the level of re-use of these recycled plastics, and generally recycled plastics, has so far been limited, since they are in fact only used for the middle layer of the article, not least for reasons of mechanical strength of the inner layer and with respect to the outer layer. For aesthetic reasons, and to be able to ensure that certain fittings are welded to the tank in a reliable manner

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

[0060] Manufactured 5 consecutive generations (0, 1, 2, 3 and 4) of P+R1 / A / B / A / R2 / P fuel tanks, of which:

[0061] - P+R1 = inner layer, for generation 0 (where R1 = 0), based on new HDPE (grade, RSB714); for subsequent generations, then contains 46.2% by weight of stream R1 (defined below), which is diluted in 53.8% of new HDPE, this layer accounts for 42% of the total structure,

[0062] - A = adhesive layers based on PE-g-MA (Admer L2100) and each layer accounts for 2% by weight of the structure,

[0063] - B = EVOH layer (Eval F101), 2.75% by weight of the structure,

[0064]- R2 = layer based on flow R2 (defined below) and accounting for 40% of the structure's weight,

[0065] - P = outer layer based on new HDPE, which forms the rest of the structure,

[0066] Manufactured with:

[0067] 1. Extrusion blow molding:

[0068] - A Bekum BAT1000 plant consisting of 6 extruders (one per layer) with a total production capacity of 330kg / h and whose geometrical characteristi...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a layer made of a base plastic comprising, in dispersed form, pellets with a diameter less than or equal to 1 μm comprising an insulating plastic incompatible with said base plastic; the invention also relates to a layer comprising at least one Multilayer structures of the above-mentioned layers and methods for producing the above-mentioned layers / structures.

Description

field of invention [0001] The invention relates to a layer made of a base plastic comprising spacer plastic spheres and to a multilayer structure comprising at least one such layer. More specifically, the present invention relates to the recycling and reuse of components of multilayer hollow bodies comprising at least one barrier plastic layer and one matrix plastic layer. Background technique [0002] Such multilayer structures are often used in highly diverse industries, for example in the manufacture of packaging materials or fuel tanks. An example of a multilayer fuel tank comprising 5 layers: PE / adhesive / EVOH / adhesive / PE, where PE stands for high density polyethylene and EVOH stands for ethylene-vinyl alcohol copolymer, the binder can be used especially Maleic anhydride grafted polyethylene (PE-g-MA). [0003] During the manufacture of plastics-based articles, especially by extrusion blow molding, large quantities (often more than 40%) of production waste (offcuts) ar...

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): B32B27/08B32B1/00B29B17/00B29B17/02B29B17/04B29C48/07B29C48/08B29C48/18B29C48/21B29C49/00B29C49/04B29C49/22B32B27/14
CPCB29C47/0054B29C47/0019B29C47/0042B32B27/08B29K2023/086Y10T428/1352B29C47/0021B29B2017/0265B29C49/04B29B17/0404B29C49/0005B29C47/06B29L2031/7172B29K2105/26B29C47/065B29B17/0042B29K2105/04B29K2023/065B29B17/02B29C49/22Y02W30/62B29C48/07B29C48/08B29C48/0012B29C48/0017B29C48/18B29C48/21Y02W30/52B32B23/04B32B37/00B32B27/32B32B27/306B32B2272/00B32B1/00
Inventor 尤勒斯-约瑟夫·范沙夫廷根泽格·杜邦芭芭拉·马贝德
Owner PLASTIC OMNIUM ADVANCED INNOVATION & RES SA