Thermoplastic composite pipe with multilayer intermediate lamina

A composite material and thermoplastic polymer technology, applied in the field of composite material pipes, can solve the problems of insufficient strength and difficult to achieve good adhesion

Active Publication Date: 2018-07-17
EVONIK OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, good adhesion of the same material combination is more difficult to achieve when the solidified surface first has to be melted by the hot melt to start a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be explained in detail below.

[0022] The internal diameter of the tubular liner is generally in the range 15 to 400 mm, preferably in the range 20 to 300 mm, more preferably in the range 25 to 255 mm. Its wall thickness is generally in the range of 2 to 40 mm, preferably in the range of 2.5 to 30 mm, more preferably in the range of 3 to 20 mm. Liners can be single or multi-layered. If it is monolayer, it consists of at least 30% by weight, preferably at least 40% by weight, more preferably at least 50% by weight, very particularly preferably at least 60% by weight and particularly preferably at least 70% by weight, at least 80% by weight or at least A molding composition of 85% by weight of polymer A, each based on the entire molding composition. If the lining is multilayer, the outer layer consists of this molding compound; the inner layer can consist of a molding compound which has, for example, a barrier or chemical protection effect on...

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PUM

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Abstract

The invention relates to a thermoplastic composite pipe with a multilayer intermediate lamina. The invention further relates to a method for manufacturing the thermoplastic composite pipe and use of the thermoplastic composite pipe. Composite formation between identical polymers in the critical process step achieves better quality of adhesion. The pipe thus produced is especially suitable for offshore applications in oil or gas production.

Description

technical field [0001] The present invention provides a flexible, fiber-reinforced composite pipe, which includes an inner liner (Innenliner, hereinafter also referred to as "liner"), one or more tape layers and a And the single-layer or multi-layer intermediate layer which joins them, and their manufacturing method. The material of the inner liner, the matrix of the tape layer and the polymer of the intermediate layer are thermoplastic. The composite pipe according to the invention is used for oil and gas extraction, especially for offshore oil or gas extraction, as a riser, as an umbilical, for extracting oil or gas from the seabed Natural gas is transported from wells to risers or for delivery on land. Background technique [0002] In the prior art, so-called unjoined flexible pipes are frequently used in this field of application. Such pipes comprise an inner lining, usually in the form of a plastic pipe, which serves to prevent the conveying fluid from escaping, and ...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B1/08
CPCB32B1/08B32B27/08B32B27/06B32B27/285B32B27/286B32B27/32B32B27/34B32B27/42B32B9/045B32B9/047B29C48/0017B29C48/0018B29C48/16B29C53/20B29C70/00B29C70/02B29C70/20B29C70/60B29C70/62B29L2023/006B32B27/00B32B27/12B32B27/36F16L9/12F16L11/00F16L11/02F16L11/04F16L11/125F16L11/133B32B37/06B29C70/32B29C65/5021B29C66/712B29C70/026B29C65/10B29C65/1412B29C65/1425B29C65/16B29C65/18B29C65/5057B29L2023/22B29C66/1122B29C66/5326B29C66/71B29C66/721B29C66/73921B29C65/02B29C63/10B32B2250/40B32B5/12B32B2307/546B32B2250/03B32B2250/02B32B2307/732B32B2260/021B32B27/288B32B7/12B32B2262/02B32B27/28B32B2262/0276B32B2307/72B32B2262/106B32B2262/0261B32B2262/105B32B2597/00B32B2262/101B32B2262/10B32B5/024B32B2260/046B32B2262/0269B29D23/001B32B2305/08B32B2398/20F16L9/128B29K2023/00B29K2077/00B29K2027/12B29K2081/04B29K2081/06B29K2071/00B29C66/5324B29C63/06B29K2101/10B29K2105/08B32B27/18F16L11/08F16L11/16C08J5/04C08J2300/22C08L101/12C08L2203/18
Inventor J.贝格尔H.里斯J.弗拉诺施R.格林H.贝耶
Owner EVONIK OPERATIONS GMBH
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