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

Liquid or vapor conveying system with connecting zone formed from coextruded multi-layer composite material

A multi-layer composite material and liquid conveying technology, which can be used in pipeline connection layout, household appliances, layered products, etc., and can solve the problems of inability to discharge melt, expensive production steps, and reducing the thickness of the intermediate layer.

Inactive Publication Date: 2003-07-09
DEGUSSA AG
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first problem with this approach is that the bond strength is generally significantly worse than that obtained using the melt-to-melt process
The second problem is that if three or more materials have to be applied to each other, too many costly production steps are required
However, this is prone to the problem of narrowing the scope, mainly because the knowledge about the injection molding process determines that the thickness of the weldable flange components cannot be reduced as much as required.
Secondly, traditional welding processes such as hot plate welding cannot discharge the large amount of melt required to reduce the thickness of the interlayer

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
  • Liquid or vapor conveying system with connecting zone formed from coextruded multi-layer composite material
  • Liquid or vapor conveying system with connecting zone formed from coextruded multi-layer composite material
  • Liquid or vapor conveying system with connecting zone formed from coextruded multi-layer composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The invention is illustrated hereinafter by way of examples with the aid of specific embodiments.

[0041] figure 1 Shown is an injection molded accessory interface (1) made of glass-filled polyamide connected to a coextruded polyamide (2), functionalized polyethylene (3) and high-density polyethylene (HDPE) (4) on the film. The resulting element is welded to a monolayer or multilayer tank (5), mainly HDPE.

[0042] Such as figure 2 As shown, another embodiment is given by means of an injection-moulded socket (6) made of polybutylene terephthalate, in which a multilayer cone produced by means of block extraction (Backenabzug) (bellows process) Soldered to the collar of the socket. The layer structure of the cone is polybutylene terephthalate (7) / adhesion promoter (8) / HDPE (9) (adhesion promoter such as BYNEL(R) CXA4157). It has been welded to a multi-layer fuel tank (10), here three layers are shown, but HDPE / adhesion promoter / EVOH / adhesion promoter / regrilat / HDPE ...

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

A liquid- or vapor-conducting system which comprises the following components: I. an attachment, II. a coextruded multilayer composite, III. a hollow article, where components I., II., and III. have been cohesively bonded to one another, permits durable, secure bonding while at the same time reducing environmentally hazardous emissions.

Description

technical field [0001] The present invention provides a method for bonding a single-layer or multi-layer hollow plastic article to an accessory such as a nippeln, a threaded neck, a sealing cap or a valve. The bonding takes place by means of semi-finished or finished products produced from the coextrusion. Background technique [0002] Hollow plastic articles are mostly manufactured by blow molding, including all variants of this process, such as suction blow molding, or by extrusion. However, embodiments are also conceivable in which the hollow bodies are welded together from pre-thermoformed extruded sheets. Examples of other known hollow articles are those produced by injection molding or rotational sintering from polyamide. Tubes can also be produced by conventional extrusion, using tube calibrators (kalibrierung) or sheet calibrating sleeves, or using molded blocks (formgebender backen) (bellows outlet principle), providing hollow parts with sealing caps Capped, this...

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): B29C45/14B32B27/08F16L47/02
CPCB29L2031/24B29C45/14221B29C45/14778Y10T428/139F16L47/02Y10T428/1352B32B27/08B29K2995/0067Y10T428/1393F16L11/04
Inventor R·格林H·里斯S·蒙斯海默尔
Owner DEGUSSA AG